./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d3b5dee297a010530e733718cca08900e46ab18a4a35ca825ad2e8828fb51c7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:07:04,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:07:04,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:07:04,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:07:04,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:07:04,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:07:04,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:07:04,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:07:04,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:07:04,262 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:07:04,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:07:04,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:07:04,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:07:04,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:07:04,266 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:07:04,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:07:04,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:07:04,267 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:07:04,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:07:04,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:07:04,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:07:04,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:07:04,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:07:04,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:07:04,272 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:07:04,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:07:04,273 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:07:04,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:07:04,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:07:04,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:07:04,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:07:04,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:07:04,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:07:04,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:07:04,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:07:04,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:07:04,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:07:04,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:07:04,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:07:04,277 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:07:04,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:07:04,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:07:04,278 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d3b5dee297a010530e733718cca08900e46ab18a4a35ca825ad2e8828fb51c7 [2023-11-29 01:07:04,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:07:04,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:07:04,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:07:04,570 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:07:04,570 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:07:04,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i [2023-11-29 01:07:07,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:07:07,677 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:07:07,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i [2023-11-29 01:07:07,690 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data/5d55ec01c/78c0e67ae6bf4620a267775feb048e3e/FLAGd30fb4fc3 [2023-11-29 01:07:07,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data/5d55ec01c/78c0e67ae6bf4620a267775feb048e3e [2023-11-29 01:07:07,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:07:07,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:07:07,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:07:07,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:07:07,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:07:07,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:07:07" (1/1) ... [2023-11-29 01:07:07,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@141833a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:07, skipping insertion in model container [2023-11-29 01:07:07,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:07:07" (1/1) ... [2023-11-29 01:07:07,768 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:07:07,950 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i[915,928] [2023-11-29 01:07:08,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:07:08,028 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:07:08,045 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i[915,928] [2023-11-29 01:07:08,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:07:08,102 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:07:08,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08 WrapperNode [2023-11-29 01:07:08,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:07:08,104 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:07:08,104 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:07:08,104 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:07:08,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,179 INFO L138 Inliner]: procedures = 29, calls = 164, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 472 [2023-11-29 01:07:08,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:07:08,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:07:08,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:07:08,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:07:08,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,236 INFO L175 MemorySlicer]: Split 131 memory accesses to 11 slices as follows [2, 12, 14, 22, 16, 14, 12, 8, 7, 14, 10]. 17 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 3, 1, 1]. [2023-11-29 01:07:08,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:07:08,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:07:08,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:07:08,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:07:08,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (1/1) ... [2023-11-29 01:07:08,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:07:08,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:08,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:07:08,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:07:08,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:07:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 01:07:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 01:07:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 01:07:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-29 01:07:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-29 01:07:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-29 01:07:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-29 01:07:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-29 01:07:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-29 01:07:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-29 01:07:08,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-11-29 01:07:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:07:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:07:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:07:08,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:07:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:07:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 01:07:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 01:07:08,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 01:07:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 01:07:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 01:07:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 01:07:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 01:07:08,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 01:07:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 01:07:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-29 01:07:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-29 01:07:08,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-29 01:07:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-29 01:07:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-29 01:07:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-29 01:07:08,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:07:08,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 01:07:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 01:07:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 01:07:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 01:07:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 01:07:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 01:07:08,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-29 01:07:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-29 01:07:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-11-29 01:07:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-11-29 01:07:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-11-29 01:07:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-11-29 01:07:08,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-11-29 01:07:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2023-11-29 01:07:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2023-11-29 01:07:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2023-11-29 01:07:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2023-11-29 01:07:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:07:08,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:07:08,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:07:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:07:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:07:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:07:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:07:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 01:07:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 01:07:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 01:07:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 01:07:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 01:07:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 01:07:08,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:07:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:07:08,576 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:07:08,578 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:07:09,085 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:07:09,129 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:07:09,129 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:07:09,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:09 BoogieIcfgContainer [2023-11-29 01:07:09,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:07:09,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:07:09,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:07:09,137 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:07:09,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:07:07" (1/3) ... [2023-11-29 01:07:09,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48000e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:07:09, skipping insertion in model container [2023-11-29 01:07:09,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:08" (2/3) ... [2023-11-29 01:07:09,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48000e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:07:09, skipping insertion in model container [2023-11-29 01:07:09,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:09" (3/3) ... [2023-11-29 01:07:09,141 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-2.i [2023-11-29 01:07:09,161 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:07:09,161 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:07:09,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:07:09,226 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@471b534d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:07:09,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:07:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 80 states have (on average 1.5125) internal successors, (121), 81 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:09,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:09,248 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:09,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:09,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1370846810, now seen corresponding path program 1 times [2023-11-29 01:07:09,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:09,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295548150] [2023-11-29 01:07:09,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:09,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295548150] [2023-11-29 01:07:09,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:07:09,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902506710] [2023-11-29 01:07:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:09,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:09,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:09,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:09,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:07:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:09,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:07:09,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-29 01:07:09,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:09,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902506710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:09,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:09,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:07:09,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052532140] [2023-11-29 01:07:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:09,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:07:09,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:07:09,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:09,938 INFO L87 Difference]: Start difference. First operand has 95 states, 80 states have (on average 1.5125) internal successors, (121), 81 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:09,990 INFO L93 Difference]: Finished difference Result 187 states and 300 transitions. [2023-11-29 01:07:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:07:09,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-11-29 01:07:09,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:10,003 INFO L225 Difference]: With dead ends: 187 [2023-11-29 01:07:10,003 INFO L226 Difference]: Without dead ends: 93 [2023-11-29 01:07:10,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:10,012 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:10,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-29 01:07:10,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-29 01:07:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.4683544303797469) internal successors, (116), 79 states have internal predecessors, (116), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 140 transitions. [2023-11-29 01:07:10,066 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 140 transitions. Word has length 95 [2023-11-29 01:07:10,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:10,066 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 140 transitions. [2023-11-29 01:07:10,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:10,067 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 140 transitions. [2023-11-29 01:07:10,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:10,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:10,073 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:10,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:10,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:10,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:10,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash -683646162, now seen corresponding path program 1 times [2023-11-29 01:07:10,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:10,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736290680] [2023-11-29 01:07:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:10,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:10,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695381314] [2023-11-29 01:07:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:10,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:10,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:10,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:10,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:07:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:10,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:07:10,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:10,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:10,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:10,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736290680] [2023-11-29 01:07:10,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:10,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695381314] [2023-11-29 01:07:10,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695381314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:10,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:10,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:07:10,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664989233] [2023-11-29 01:07:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:10,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:10,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:10,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:10,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:10,631 INFO L87 Difference]: Start difference. First operand 93 states and 140 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:10,671 INFO L93 Difference]: Finished difference Result 186 states and 281 transitions. [2023-11-29 01:07:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:10,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2023-11-29 01:07:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:10,674 INFO L225 Difference]: With dead ends: 186 [2023-11-29 01:07:10,675 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 01:07:10,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:10,677 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:10,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 265 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 01:07:10,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-29 01:07:10,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.4625) internal successors, (117), 80 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:10,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2023-11-29 01:07:10,693 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 95 [2023-11-29 01:07:10,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:10,694 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2023-11-29 01:07:10,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2023-11-29 01:07:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:10,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:10,698 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:10,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:07:10,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:10,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:10,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1270452176, now seen corresponding path program 1 times [2023-11-29 01:07:10,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:10,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084896196] [2023-11-29 01:07:10,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:10,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:10,967 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:10,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40930829] [2023-11-29 01:07:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:10,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:10,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:10,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:10,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:07:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:11,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:07:11,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 01:07:11,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:11,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:11,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084896196] [2023-11-29 01:07:11,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:11,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40930829] [2023-11-29 01:07:11,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40930829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:11,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:11,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:07:11,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464034204] [2023-11-29 01:07:11,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:11,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:07:11,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:07:11,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:07:11,265 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:11,322 INFO L93 Difference]: Finished difference Result 193 states and 290 transitions. [2023-11-29 01:07:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-11-29 01:07:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:11,325 INFO L225 Difference]: With dead ends: 193 [2023-11-29 01:07:11,325 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 01:07:11,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:11,327 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 10 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:11,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 400 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:11,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 01:07:11,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2023-11-29 01:07:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.451219512195122) internal successors, (119), 82 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2023-11-29 01:07:11,341 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 95 [2023-11-29 01:07:11,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:11,342 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2023-11-29 01:07:11,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:11,342 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2023-11-29 01:07:11,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:11,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:11,345 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:11,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:07:11,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 01:07:11,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:11,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:11,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1198065618, now seen corresponding path program 1 times [2023-11-29 01:07:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:11,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909307588] [2023-11-29 01:07:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:11,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:11,597 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:11,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209719816] [2023-11-29 01:07:11,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:11,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:11,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:11,599 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:11,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:07:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:11,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:07:11,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:11,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:11,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:11,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909307588] [2023-11-29 01:07:11,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:11,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209719816] [2023-11-29 01:07:11,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209719816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:11,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:11,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:07:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626915761] [2023-11-29 01:07:11,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:11,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:07:11,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:11,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:07:11,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:07:11,860 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:11,909 INFO L93 Difference]: Finished difference Result 213 states and 319 transitions. [2023-11-29 01:07:11,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:11,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2023-11-29 01:07:11,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:11,912 INFO L225 Difference]: With dead ends: 213 [2023-11-29 01:07:11,913 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 01:07:11,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:11,915 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 67 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:11,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 402 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 01:07:11,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 98. [2023-11-29 01:07:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 84 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:11,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 145 transitions. [2023-11-29 01:07:11,928 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 145 transitions. Word has length 95 [2023-11-29 01:07:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:11,929 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 145 transitions. [2023-11-29 01:07:11,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 145 transitions. [2023-11-29 01:07:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 01:07:11,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:11,931 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:11,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:07:12,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:12,139 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:12,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash -512162755, now seen corresponding path program 1 times [2023-11-29 01:07:12,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:12,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117630819] [2023-11-29 01:07:12,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:12,185 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:12,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409998221] [2023-11-29 01:07:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:12,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:12,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:12,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:12,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:07:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:12,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:07:12,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:12,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:12,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:12,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117630819] [2023-11-29 01:07:12,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:12,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409998221] [2023-11-29 01:07:12,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409998221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:12,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:12,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:07:12,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504233800] [2023-11-29 01:07:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:12,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:12,494 INFO L87 Difference]: Start difference. First operand 98 states and 145 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:12,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:12,527 INFO L93 Difference]: Finished difference Result 237 states and 353 transitions. [2023-11-29 01:07:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:12,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 98 [2023-11-29 01:07:12,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:12,530 INFO L225 Difference]: With dead ends: 237 [2023-11-29 01:07:12,530 INFO L226 Difference]: Without dead ends: 140 [2023-11-29 01:07:12,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:12,532 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 57 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:12,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 267 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:12,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-29 01:07:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 115. [2023-11-29 01:07:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 101 states have (on average 1.4653465346534653) internal successors, (148), 101 states have internal predecessors, (148), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2023-11-29 01:07:12,544 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 98 [2023-11-29 01:07:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:12,545 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2023-11-29 01:07:12,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2023-11-29 01:07:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 01:07:12,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:12,547 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:12,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:07:12,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:12,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:12,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash -442669353, now seen corresponding path program 1 times [2023-11-29 01:07:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:12,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870677994] [2023-11-29 01:07:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:12,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:12,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:12,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732608503] [2023-11-29 01:07:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:12,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:12,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:12,794 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:12,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:07:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:13,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:07:13,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:13,045 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:13,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:13,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:13,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870677994] [2023-11-29 01:07:13,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:13,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732608503] [2023-11-29 01:07:13,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732608503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:13,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:13,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:07:13,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512251562] [2023-11-29 01:07:13,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:13,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:13,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:13,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:13,049 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:13,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:13,077 INFO L93 Difference]: Finished difference Result 240 states and 359 transitions. [2023-11-29 01:07:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:13,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 98 [2023-11-29 01:07:13,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:13,080 INFO L225 Difference]: With dead ends: 240 [2023-11-29 01:07:13,080 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 01:07:13,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:13,081 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 27 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:13,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 265 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 01:07:13,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2023-11-29 01:07:13,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 102 states have (on average 1.4607843137254901) internal successors, (149), 102 states have internal predecessors, (149), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 173 transitions. [2023-11-29 01:07:13,093 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 173 transitions. Word has length 98 [2023-11-29 01:07:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:13,094 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 173 transitions. [2023-11-29 01:07:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 173 transitions. [2023-11-29 01:07:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 01:07:13,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:13,096 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:13,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:07:13,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:13,303 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:13,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:13,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1252015979, now seen corresponding path program 1 times [2023-11-29 01:07:13,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:13,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818901398] [2023-11-29 01:07:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:13,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:13,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205384612] [2023-11-29 01:07:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:13,342 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:13,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:07:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:13,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:13,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:13,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 01:07:13,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2023-11-29 01:07:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:13,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:13,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:13,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818901398] [2023-11-29 01:07:13,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:13,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205384612] [2023-11-29 01:07:13,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205384612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:13,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:13,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:07:13,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654367161] [2023-11-29 01:07:13,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:13,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:07:13,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:13,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:07:13,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:07:13,750 INFO L87 Difference]: Start difference. First operand 116 states and 173 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:14,080 INFO L93 Difference]: Finished difference Result 329 states and 485 transitions. [2023-11-29 01:07:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:07:14,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 98 [2023-11-29 01:07:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:14,083 INFO L225 Difference]: With dead ends: 329 [2023-11-29 01:07:14,083 INFO L226 Difference]: Without dead ends: 214 [2023-11-29 01:07:14,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:07:14,085 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 252 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:14,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 742 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:07:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-29 01:07:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 173. [2023-11-29 01:07:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 156 states have (on average 1.4487179487179487) internal successors, (226), 157 states have internal predecessors, (226), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:07:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 254 transitions. [2023-11-29 01:07:14,101 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 254 transitions. Word has length 98 [2023-11-29 01:07:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:14,101 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 254 transitions. [2023-11-29 01:07:14,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 254 transitions. [2023-11-29 01:07:14,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 01:07:14,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:14,104 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:14,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:07:14,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:14,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:14,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1303227766, now seen corresponding path program 1 times [2023-11-29 01:07:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009206348] [2023-11-29 01:07:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:14,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:14,350 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:14,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521931246] [2023-11-29 01:07:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:14,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:14,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:14,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:14,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:07:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:14,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:07:14,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:14,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:14,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:14,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009206348] [2023-11-29 01:07:14,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:14,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521931246] [2023-11-29 01:07:14,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521931246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:14,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:07:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383604200] [2023-11-29 01:07:14,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:14,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:07:14,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:07:14,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:07:14,891 INFO L87 Difference]: Start difference. First operand 173 states and 254 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:15,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:15,027 INFO L93 Difference]: Finished difference Result 483 states and 712 transitions. [2023-11-29 01:07:15,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:07:15,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 100 [2023-11-29 01:07:15,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:15,033 INFO L225 Difference]: With dead ends: 483 [2023-11-29 01:07:15,033 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 01:07:15,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:15,035 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 131 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:15,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 391 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:07:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 01:07:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 244. [2023-11-29 01:07:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 214 states have (on average 1.4299065420560748) internal successors, (306), 215 states have internal predecessors, (306), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 358 transitions. [2023-11-29 01:07:15,060 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 358 transitions. Word has length 100 [2023-11-29 01:07:15,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:15,061 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 358 transitions. [2023-11-29 01:07:15,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 358 transitions. [2023-11-29 01:07:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:07:15,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:15,063 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:15,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:07:15,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:15,269 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:15,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash 269264473, now seen corresponding path program 1 times [2023-11-29 01:07:15,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:15,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40347190] [2023-11-29 01:07:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:15,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:15,318 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:15,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1655799300] [2023-11-29 01:07:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:15,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:15,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:15,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:15,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:07:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:15,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:07:15,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:15,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:15,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:07:15,675 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:15,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:15,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:15,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40347190] [2023-11-29 01:07:15,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:15,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655799300] [2023-11-29 01:07:15,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655799300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:15,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:07:15,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340876046] [2023-11-29 01:07:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:15,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:15,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:15,679 INFO L87 Difference]: Start difference. First operand 244 states and 358 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:15,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:15,859 INFO L93 Difference]: Finished difference Result 559 states and 811 transitions. [2023-11-29 01:07:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:15,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-11-29 01:07:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:15,864 INFO L225 Difference]: With dead ends: 559 [2023-11-29 01:07:15,864 INFO L226 Difference]: Without dead ends: 387 [2023-11-29 01:07:15,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:07:15,866 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 129 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:15,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 520 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:07:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-29 01:07:15,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 266. [2023-11-29 01:07:15,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 236 states have (on average 1.4194915254237288) internal successors, (335), 237 states have internal predecessors, (335), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:15,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 387 transitions. [2023-11-29 01:07:15,889 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 387 transitions. Word has length 101 [2023-11-29 01:07:15,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:15,889 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 387 transitions. [2023-11-29 01:07:15,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:15,890 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 387 transitions. [2023-11-29 01:07:15,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:07:15,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:15,892 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:15,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:07:16,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:16,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:16,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash -123762537, now seen corresponding path program 1 times [2023-11-29 01:07:16,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:16,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791742805] [2023-11-29 01:07:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:16,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:16,131 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:16,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748732646] [2023-11-29 01:07:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:16,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:16,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:16,135 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:16,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:07:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:16,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:07:16,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:16,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 01:07:16,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:16,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:07:16,560 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 01:07:16,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:16,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791742805] [2023-11-29 01:07:16,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:16,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748732646] [2023-11-29 01:07:16,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748732646] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:16,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:16,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2023-11-29 01:07:16,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880576440] [2023-11-29 01:07:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:16,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:07:16,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:16,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:07:16,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:07:16,783 INFO L87 Difference]: Start difference. First operand 266 states and 387 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:17,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:17,209 INFO L93 Difference]: Finished difference Result 747 states and 1097 transitions. [2023-11-29 01:07:17,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:07:17,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-11-29 01:07:17,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:17,214 INFO L225 Difference]: With dead ends: 747 [2023-11-29 01:07:17,214 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 01:07:17,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:07:17,215 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 331 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:17,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 975 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:07:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 01:07:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 334. [2023-11-29 01:07:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 304 states have (on average 1.4407894736842106) internal successors, (438), 305 states have internal predecessors, (438), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:17,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 490 transitions. [2023-11-29 01:07:17,234 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 490 transitions. Word has length 101 [2023-11-29 01:07:17,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:17,235 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 490 transitions. [2023-11-29 01:07:17,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:17,235 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 490 transitions. [2023-11-29 01:07:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:17,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:17,237 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:17,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:07:17,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:07:17,440 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:17,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash -865204483, now seen corresponding path program 1 times [2023-11-29 01:07:17,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:17,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38032175] [2023-11-29 01:07:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:17,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:17,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765971975] [2023-11-29 01:07:17,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:17,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:17,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:17,475 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:17,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:07:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:17,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:07:17,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:17,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:17,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:07:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:17,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:17,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:17,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38032175] [2023-11-29 01:07:17,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:17,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765971975] [2023-11-29 01:07:17,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765971975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:17,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:17,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:07:17,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306008457] [2023-11-29 01:07:17,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:17,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:17,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:17,794 INFO L87 Difference]: Start difference. First operand 334 states and 490 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:17,955 INFO L93 Difference]: Finished difference Result 644 states and 941 transitions. [2023-11-29 01:07:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:17,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:17,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:17,960 INFO L225 Difference]: With dead ends: 644 [2023-11-29 01:07:17,960 INFO L226 Difference]: Without dead ends: 415 [2023-11-29 01:07:17,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:07:17,961 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 103 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:17,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 522 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:07:17,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-11-29 01:07:17,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 337. [2023-11-29 01:07:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 307 states have (on average 1.4397394136807817) internal successors, (442), 308 states have internal predecessors, (442), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:17,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 494 transitions. [2023-11-29 01:07:17,978 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 494 transitions. Word has length 103 [2023-11-29 01:07:17,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:17,979 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 494 transitions. [2023-11-29 01:07:17,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:17,979 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 494 transitions. [2023-11-29 01:07:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:17,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:17,980 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:17,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:07:18,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:07:18,181 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:18,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:18,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1258231493, now seen corresponding path program 1 times [2023-11-29 01:07:18,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124682028] [2023-11-29 01:07:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:18,214 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671302338] [2023-11-29 01:07:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:18,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:18,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:18,216 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:18,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:07:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:18,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:07:18,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:18,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:07:18,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:18,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:18,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:18,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124682028] [2023-11-29 01:07:18,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671302338] [2023-11-29 01:07:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671302338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:18,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:18,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082500916] [2023-11-29 01:07:18,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:18,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:18,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:18,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:18,607 INFO L87 Difference]: Start difference. First operand 337 states and 494 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:18,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:18,817 INFO L93 Difference]: Finished difference Result 817 states and 1202 transitions. [2023-11-29 01:07:18,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:07:18,818 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:18,823 INFO L225 Difference]: With dead ends: 817 [2023-11-29 01:07:18,823 INFO L226 Difference]: Without dead ends: 585 [2023-11-29 01:07:18,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:18,824 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 257 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:18,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 704 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:07:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2023-11-29 01:07:18,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 404. [2023-11-29 01:07:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 374 states have (on average 1.4518716577540107) internal successors, (543), 375 states have internal predecessors, (543), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:18,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 595 transitions. [2023-11-29 01:07:18,855 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 595 transitions. Word has length 103 [2023-11-29 01:07:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:18,855 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 595 transitions. [2023-11-29 01:07:18,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 595 transitions. [2023-11-29 01:07:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:18,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:18,857 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:18,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:07:19,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:07:19,058 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:19,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1614384285, now seen corresponding path program 1 times [2023-11-29 01:07:19,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:19,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480637413] [2023-11-29 01:07:19,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:19,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:19,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:19,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47776398] [2023-11-29 01:07:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:19,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:19,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:19,094 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:19,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:07:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:19,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:07:19,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:19,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:07:19,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:19,403 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:19,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:19,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:19,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480637413] [2023-11-29 01:07:19,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:19,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47776398] [2023-11-29 01:07:19,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47776398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:19,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:19,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:07:19,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962318651] [2023-11-29 01:07:19,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:19,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:19,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:19,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:19,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:19,406 INFO L87 Difference]: Start difference. First operand 404 states and 595 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:19,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:19,596 INFO L93 Difference]: Finished difference Result 819 states and 1201 transitions. [2023-11-29 01:07:19,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:07:19,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:19,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:19,601 INFO L225 Difference]: With dead ends: 819 [2023-11-29 01:07:19,601 INFO L226 Difference]: Without dead ends: 546 [2023-11-29 01:07:19,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:19,603 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 82 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:19,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 643 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:07:19,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-29 01:07:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 453. [2023-11-29 01:07:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 422 states have (on average 1.45260663507109) internal successors, (613), 423 states have internal predecessors, (613), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 665 transitions. [2023-11-29 01:07:19,649 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 665 transitions. Word has length 103 [2023-11-29 01:07:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:19,649 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 665 transitions. [2023-11-29 01:07:19,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:19,650 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 665 transitions. [2023-11-29 01:07:19,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:19,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:19,651 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:19,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:07:19,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:07:19,852 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:19,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash 796735835, now seen corresponding path program 1 times [2023-11-29 01:07:19,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:19,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829494414] [2023-11-29 01:07:19,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:19,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:19,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:19,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316797202] [2023-11-29 01:07:19,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:19,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:19,887 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:19,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:07:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:20,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:07:20,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:20,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:20,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:20,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:20,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:20,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829494414] [2023-11-29 01:07:20,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:20,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316797202] [2023-11-29 01:07:20,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316797202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:20,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:20,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:20,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426340371] [2023-11-29 01:07:20,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:20,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:20,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:20,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:20,312 INFO L87 Difference]: Start difference. First operand 453 states and 665 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:20,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:20,560 INFO L93 Difference]: Finished difference Result 1100 states and 1627 transitions. [2023-11-29 01:07:20,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:07:20,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:20,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:20,566 INFO L225 Difference]: With dead ends: 1100 [2023-11-29 01:07:20,566 INFO L226 Difference]: Without dead ends: 807 [2023-11-29 01:07:20,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:20,568 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 197 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:20,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 976 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:07:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-11-29 01:07:20,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 567. [2023-11-29 01:07:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 536 states have (on average 1.4570895522388059) internal successors, (781), 537 states have internal predecessors, (781), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 833 transitions. [2023-11-29 01:07:20,599 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 833 transitions. Word has length 103 [2023-11-29 01:07:20,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:20,599 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 833 transitions. [2023-11-29 01:07:20,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 833 transitions. [2023-11-29 01:07:20,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:20,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:20,602 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:20,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:07:20,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:07:20,808 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:20,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1477086211, now seen corresponding path program 1 times [2023-11-29 01:07:20,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:20,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723323857] [2023-11-29 01:07:20,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:20,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:20,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:20,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523467309] [2023-11-29 01:07:20,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:20,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:20,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:20,846 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:20,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:07:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:21,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:07:21,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:21,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:07:21,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:21,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:21,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:21,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723323857] [2023-11-29 01:07:21,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:21,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523467309] [2023-11-29 01:07:21,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523467309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:21,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:21,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:07:21,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348959939] [2023-11-29 01:07:21,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:21,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:21,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:21,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:21,255 INFO L87 Difference]: Start difference. First operand 567 states and 833 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:21,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:21,472 INFO L93 Difference]: Finished difference Result 1004 states and 1475 transitions. [2023-11-29 01:07:21,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:07:21,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:21,477 INFO L225 Difference]: With dead ends: 1004 [2023-11-29 01:07:21,477 INFO L226 Difference]: Without dead ends: 641 [2023-11-29 01:07:21,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:21,479 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 89 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:21,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 642 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:07:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-11-29 01:07:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 501. [2023-11-29 01:07:21,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 470 states have (on average 1.446808510638298) internal successors, (680), 471 states have internal predecessors, (680), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 732 transitions. [2023-11-29 01:07:21,499 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 732 transitions. Word has length 103 [2023-11-29 01:07:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:21,500 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 732 transitions. [2023-11-29 01:07:21,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 732 transitions. [2023-11-29 01:07:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:21,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:21,502 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:21,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:07:21,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:07:21,703 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:21,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:21,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1444648301, now seen corresponding path program 1 times [2023-11-29 01:07:21,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:21,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894824779] [2023-11-29 01:07:21,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:21,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:21,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:21,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124828306] [2023-11-29 01:07:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:21,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:21,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:21,735 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:21,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:07:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:21,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:07:21,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:22,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 01:07:22,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 01:07:22,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-29 01:07:22,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:22,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:22,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:22,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894824779] [2023-11-29 01:07:22,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:22,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124828306] [2023-11-29 01:07:22,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124828306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:22,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:22,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:22,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799784177] [2023-11-29 01:07:22,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:22,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:22,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:22,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:22,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:22,195 INFO L87 Difference]: Start difference. First operand 501 states and 732 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:22,616 INFO L93 Difference]: Finished difference Result 971 states and 1423 transitions. [2023-11-29 01:07:22,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:07:22,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:22,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:22,620 INFO L225 Difference]: With dead ends: 971 [2023-11-29 01:07:22,620 INFO L226 Difference]: Without dead ends: 653 [2023-11-29 01:07:22,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:07:22,622 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 249 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:22,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 712 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:22,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-11-29 01:07:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 500. [2023-11-29 01:07:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 469 states have (on average 1.4456289978678039) internal successors, (678), 470 states have internal predecessors, (678), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 730 transitions. [2023-11-29 01:07:22,640 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 730 transitions. Word has length 104 [2023-11-29 01:07:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:22,641 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 730 transitions. [2023-11-29 01:07:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 730 transitions. [2023-11-29 01:07:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:22,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:22,643 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:22,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:07:22,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 01:07:22,844 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:22,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:22,844 INFO L85 PathProgramCache]: Analyzing trace with hash 2078568385, now seen corresponding path program 1 times [2023-11-29 01:07:22,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:22,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064762988] [2023-11-29 01:07:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:22,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:22,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:22,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018788717] [2023-11-29 01:07:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:22,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:22,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:22,880 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:22,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:07:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:23,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:07:23,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:23,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:23,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2023-11-29 01:07:23,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2023-11-29 01:07:23,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:07:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:23,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:23,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:23,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064762988] [2023-11-29 01:07:23,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:23,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018788717] [2023-11-29 01:07:23,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018788717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:23,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:23,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:07:23,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679570904] [2023-11-29 01:07:23,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:23,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:07:23,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:07:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:07:23,392 INFO L87 Difference]: Start difference. First operand 500 states and 730 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:23,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:23,783 INFO L93 Difference]: Finished difference Result 938 states and 1375 transitions. [2023-11-29 01:07:23,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:07:23,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:23,788 INFO L225 Difference]: With dead ends: 938 [2023-11-29 01:07:23,788 INFO L226 Difference]: Without dead ends: 621 [2023-11-29 01:07:23,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:07:23,790 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 274 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:23,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 935 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-11-29 01:07:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 511. [2023-11-29 01:07:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 480 states have (on average 1.4479166666666667) internal successors, (695), 481 states have internal predecessors, (695), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 747 transitions. [2023-11-29 01:07:23,813 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 747 transitions. Word has length 104 [2023-11-29 01:07:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:23,813 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 747 transitions. [2023-11-29 01:07:23,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 747 transitions. [2023-11-29 01:07:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:23,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:23,815 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:23,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:07:24,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:07:24,016 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:24,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1793697085, now seen corresponding path program 1 times [2023-11-29 01:07:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:24,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711070768] [2023-11-29 01:07:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:24,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:24,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:24,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413062381] [2023-11-29 01:07:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:24,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:24,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:24,047 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:24,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:07:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:24,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:07:24,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:24,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:24,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:07:24,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2023-11-29 01:07:24,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 01:07:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:24,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:24,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:24,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711070768] [2023-11-29 01:07:24,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:24,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413062381] [2023-11-29 01:07:24,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413062381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:24,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:24,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89448348] [2023-11-29 01:07:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:24,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:24,431 INFO L87 Difference]: Start difference. First operand 511 states and 747 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:24,771 INFO L93 Difference]: Finished difference Result 1017 states and 1493 transitions. [2023-11-29 01:07:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:07:24,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:24,776 INFO L225 Difference]: With dead ends: 1017 [2023-11-29 01:07:24,776 INFO L226 Difference]: Without dead ends: 694 [2023-11-29 01:07:24,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:24,778 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 195 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:24,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 860 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:24,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-29 01:07:24,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 499. [2023-11-29 01:07:24,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 468 states have (on average 1.4444444444444444) internal successors, (676), 469 states have internal predecessors, (676), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 728 transitions. [2023-11-29 01:07:24,801 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 728 transitions. Word has length 104 [2023-11-29 01:07:24,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:24,801 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 728 transitions. [2023-11-29 01:07:24,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:24,802 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 728 transitions. [2023-11-29 01:07:24,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:24,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:24,803 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:24,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:07:25,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:07:25,004 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:25,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:25,005 INFO L85 PathProgramCache]: Analyzing trace with hash -786715223, now seen corresponding path program 1 times [2023-11-29 01:07:25,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:25,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15892229] [2023-11-29 01:07:25,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:25,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:25,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:25,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662523001] [2023-11-29 01:07:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:25,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:25,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:25,038 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:25,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:07:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:25,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:07:25,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:25,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 01:07:25,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 01:07:25,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2023-11-29 01:07:25,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-11-29 01:07:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:25,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:25,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:25,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15892229] [2023-11-29 01:07:25,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:25,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662523001] [2023-11-29 01:07:25,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662523001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:25,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:25,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:07:25,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844364281] [2023-11-29 01:07:25,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:25,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:07:25,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:25,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:07:25,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:07:25,592 INFO L87 Difference]: Start difference. First operand 499 states and 728 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:26,071 INFO L93 Difference]: Finished difference Result 952 states and 1388 transitions. [2023-11-29 01:07:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:07:26,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:26,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:26,075 INFO L225 Difference]: With dead ends: 952 [2023-11-29 01:07:26,075 INFO L226 Difference]: Without dead ends: 636 [2023-11-29 01:07:26,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:07:26,077 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 242 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:26,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1001 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:07:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-11-29 01:07:26,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 499. [2023-11-29 01:07:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 468 states have (on average 1.4444444444444444) internal successors, (676), 469 states have internal predecessors, (676), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 728 transitions. [2023-11-29 01:07:26,101 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 728 transitions. Word has length 104 [2023-11-29 01:07:26,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:26,101 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 728 transitions. [2023-11-29 01:07:26,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 728 transitions. [2023-11-29 01:07:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:26,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:26,103 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:26,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:07:26,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:26,304 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:26,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:26,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1179742233, now seen corresponding path program 1 times [2023-11-29 01:07:26,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:26,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479826908] [2023-11-29 01:07:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:26,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:26,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827609680] [2023-11-29 01:07:26,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:26,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:26,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:26,337 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:26,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:07:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:26,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:07:26,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:26,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2023-11-29 01:07:26,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 01:07:26,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:07:26,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:26,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:26,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:26,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479826908] [2023-11-29 01:07:26,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:26,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827609680] [2023-11-29 01:07:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827609680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:26,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:26,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382316611] [2023-11-29 01:07:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:26,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:26,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:26,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:26,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:26,835 INFO L87 Difference]: Start difference. First operand 499 states and 728 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:27,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:27,236 INFO L93 Difference]: Finished difference Result 916 states and 1335 transitions. [2023-11-29 01:07:27,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:07:27,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:27,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:27,239 INFO L225 Difference]: With dead ends: 916 [2023-11-29 01:07:27,240 INFO L226 Difference]: Without dead ends: 600 [2023-11-29 01:07:27,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:07:27,241 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 175 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:27,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1043 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-11-29 01:07:27,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 486. [2023-11-29 01:07:27,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 455 states have (on average 1.4395604395604396) internal successors, (655), 456 states have internal predecessors, (655), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 707 transitions. [2023-11-29 01:07:27,267 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 707 transitions. Word has length 104 [2023-11-29 01:07:27,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:27,268 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 707 transitions. [2023-11-29 01:07:27,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:27,268 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 707 transitions. [2023-11-29 01:07:27,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:27,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:27,270 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:27,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 01:07:27,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:27,471 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:27,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash -410960577, now seen corresponding path program 1 times [2023-11-29 01:07:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:27,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538474925] [2023-11-29 01:07:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:27,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:27,498 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:27,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014371741] [2023-11-29 01:07:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:27,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:27,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:27,500 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:27,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:07:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:27,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:27,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:27,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-29 01:07:27,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2023-11-29 01:07:27,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:27,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:27,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538474925] [2023-11-29 01:07:27,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014371741] [2023-11-29 01:07:27,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014371741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:27,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:27,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:27,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466302436] [2023-11-29 01:07:27,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:27,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:27,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:27,852 INFO L87 Difference]: Start difference. First operand 486 states and 707 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:28,254 INFO L93 Difference]: Finished difference Result 946 states and 1383 transitions. [2023-11-29 01:07:28,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:07:28,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:28,259 INFO L225 Difference]: With dead ends: 946 [2023-11-29 01:07:28,259 INFO L226 Difference]: Without dead ends: 638 [2023-11-29 01:07:28,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:28,261 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 190 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:28,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1134 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-29 01:07:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 486. [2023-11-29 01:07:28,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 455 states have (on average 1.4395604395604396) internal successors, (655), 456 states have internal predecessors, (655), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 707 transitions. [2023-11-29 01:07:28,277 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 707 transitions. Word has length 104 [2023-11-29 01:07:28,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:28,278 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 707 transitions. [2023-11-29 01:07:28,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:28,278 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 707 transitions. [2023-11-29 01:07:28,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:28,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:28,280 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:28,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:28,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:28,481 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:28,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:28,481 INFO L85 PathProgramCache]: Analyzing trace with hash -803987587, now seen corresponding path program 1 times [2023-11-29 01:07:28,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:28,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266293588] [2023-11-29 01:07:28,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:28,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:28,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:28,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1813743233] [2023-11-29 01:07:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:28,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:28,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:28,544 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:28,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:07:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:28,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:28,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:28,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2023-11-29 01:07:28,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 01:07:28,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:07:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:28,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:28,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:28,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266293588] [2023-11-29 01:07:28,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:28,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813743233] [2023-11-29 01:07:28,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813743233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:28,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:28,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:07:28,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620081507] [2023-11-29 01:07:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:28,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:28,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:28,936 INFO L87 Difference]: Start difference. First operand 486 states and 707 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:29,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:29,159 INFO L93 Difference]: Finished difference Result 1016 states and 1475 transitions. [2023-11-29 01:07:29,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:07:29,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:29,163 INFO L225 Difference]: With dead ends: 1016 [2023-11-29 01:07:29,163 INFO L226 Difference]: Without dead ends: 708 [2023-11-29 01:07:29,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:29,165 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 154 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:29,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 710 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:07:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-11-29 01:07:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 497. [2023-11-29 01:07:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 466 states have (on average 1.4377682403433476) internal successors, (670), 467 states have internal predecessors, (670), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 722 transitions. [2023-11-29 01:07:29,186 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 722 transitions. Word has length 104 [2023-11-29 01:07:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:29,187 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 722 transitions. [2023-11-29 01:07:29,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 722 transitions. [2023-11-29 01:07:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:29,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:29,189 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:29,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:29,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:29,397 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:29,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:29,397 INFO L85 PathProgramCache]: Analyzing trace with hash -381285761, now seen corresponding path program 1 times [2023-11-29 01:07:29,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:29,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034274218] [2023-11-29 01:07:29,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:29,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:29,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:29,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741421894] [2023-11-29 01:07:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:29,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:29,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:29,432 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:29,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:07:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:29,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:07:29,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:29,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-29 01:07:29,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-11-29 01:07:29,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:07:29,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:29,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:29,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034274218] [2023-11-29 01:07:29,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741421894] [2023-11-29 01:07:29,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741421894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:29,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:29,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:07:29,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930160550] [2023-11-29 01:07:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:29,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:07:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:07:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:07:29,889 INFO L87 Difference]: Start difference. First operand 497 states and 722 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:30,470 INFO L93 Difference]: Finished difference Result 935 states and 1361 transitions. [2023-11-29 01:07:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:07:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:30,474 INFO L225 Difference]: With dead ends: 935 [2023-11-29 01:07:30,474 INFO L226 Difference]: Without dead ends: 621 [2023-11-29 01:07:30,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:07:30,475 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 188 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:30,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1338 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:07:30,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-11-29 01:07:30,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 484. [2023-11-29 01:07:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 453 states have (on average 1.4326710816777042) internal successors, (649), 454 states have internal predecessors, (649), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 701 transitions. [2023-11-29 01:07:30,489 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 701 transitions. Word has length 104 [2023-11-29 01:07:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:30,490 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 701 transitions. [2023-11-29 01:07:30,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:30,490 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 701 transitions. [2023-11-29 01:07:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:07:30,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:30,491 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:30,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:07:30,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:30,692 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:30,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1422558977, now seen corresponding path program 1 times [2023-11-29 01:07:30,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:30,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311068329] [2023-11-29 01:07:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:30,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:30,717 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:30,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37057689] [2023-11-29 01:07:30,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:30,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:30,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:30,718 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:30,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:07:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:30,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 01:07:30,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:31,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 01:07:31,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:31,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:07:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 01:07:31,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:31,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:31,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311068329] [2023-11-29 01:07:31,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:31,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37057689] [2023-11-29 01:07:31,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37057689] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:31,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:31,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2023-11-29 01:07:31,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709206398] [2023-11-29 01:07:31,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:31,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:07:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:31,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:07:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:07:31,302 INFO L87 Difference]: Start difference. First operand 484 states and 701 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:31,975 INFO L93 Difference]: Finished difference Result 1045 states and 1513 transitions. [2023-11-29 01:07:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:07:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-11-29 01:07:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:31,980 INFO L225 Difference]: With dead ends: 1045 [2023-11-29 01:07:31,980 INFO L226 Difference]: Without dead ends: 739 [2023-11-29 01:07:31,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2023-11-29 01:07:31,982 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 351 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:31,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1842 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:07:31,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-11-29 01:07:32,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 583. [2023-11-29 01:07:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 542 states have (on average 1.4169741697416973) internal successors, (768), 545 states have internal predecessors, (768), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 01:07:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 836 transitions. [2023-11-29 01:07:32,042 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 836 transitions. Word has length 105 [2023-11-29 01:07:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:32,043 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 836 transitions. [2023-11-29 01:07:32,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 836 transitions. [2023-11-29 01:07:32,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:07:32,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:32,045 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:32,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:07:32,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:32,256 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:32,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1538221119, now seen corresponding path program 1 times [2023-11-29 01:07:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:07:32,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936309907] [2023-11-29 01:07:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:32,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:07:32,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:07:32,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258602882] [2023-11-29 01:07:32,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:32,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:32,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:32,286 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:07:32,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:07:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:07:32,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:07:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:07:33,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:07:33,009 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:07:33,010 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:07:33,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:33,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:07:33,215 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:33,218 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:07:33,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-29 01:07:33,308 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-29 01:07:33,312 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-29 01:07:33,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-29 01:07:33,317 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-29 01:07:33,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-29 01:07:33,321 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-29 01:07:33,322 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-29 01:07:33,324 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-29 01:07:33,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 01:07:33,326 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 01:07:33,326 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 01:07:33,327 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 01:07:33,327 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 01:07:33,327 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 01:07:33,327 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 01:07:33,328 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-11-29 01:07:33,329 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 01:07:33,329 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 01:07:33,329 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-11-29 01:07:33,329 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 01:07:33,330 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-29 01:07:33,330 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-29 01:07:33,330 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-29 01:07:33,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-29 01:07:33,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-29 01:07:33,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated [2023-11-29 01:07:33,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated [2023-11-29 01:07:33,333 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated [2023-11-29 01:07:33,333 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-29 01:07:33,333 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-29 01:07:33,333 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated [2023-11-29 01:07:33,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 01:07:33,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:07:33,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite10 could not be translated [2023-11-29 01:07:33,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 01:07:33,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:07:33,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-29 01:07:33,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite10 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated [2023-11-29 01:07:33,336 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-29 01:07:33,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem23 could not be translated [2023-11-29 01:07:33,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 01:07:33,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem23 could not be translated [2023-11-29 01:07:33,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 01:07:33,337 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem21 could not be translated [2023-11-29 01:07:33,338 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem22 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,339 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,340 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,342 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,343 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,344 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,345 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,346 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,347 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated [2023-11-29 01:07:33,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,349 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-11-29 01:07:33,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,351 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-11-29 01:07:33,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short144 could not be translated [2023-11-29 01:07:33,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,353 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,354 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem141 could not be translated [2023-11-29 01:07:33,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated [2023-11-29 01:07:33,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem142 could not be translated [2023-11-29 01:07:33,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,355 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short144 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem128 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite143 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,356 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem129 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,357 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short144 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite143 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated [2023-11-29 01:07:33,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem141 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem129 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem142 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated [2023-11-29 01:07:33,359 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated [2023-11-29 01:07:33,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated [2023-11-29 01:07:33,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated [2023-11-29 01:07:33,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem128 could not be translated [2023-11-29 01:07:33,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated [2023-11-29 01:07:33,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated [2023-11-29 01:07:33,360 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated [2023-11-29 01:07:33,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:07:33 BoogieIcfgContainer [2023-11-29 01:07:33,388 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:07:33,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:07:33,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:07:33,388 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:07:33,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:09" (3/4) ... [2023-11-29 01:07:33,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:07:33,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:07:33,393 INFO L158 Benchmark]: Toolchain (without parser) took 25680.03ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 135.9MB in the beginning and 120.3MB in the end (delta: 15.6MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. [2023-11-29 01:07:33,394 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 86.2MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:07:33,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.83ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 121.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 01:07:33,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.73ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:07:33,395 INFO L158 Benchmark]: Boogie Preprocessor took 109.92ms. Allocated memory is still 172.0MB. Free memory was 117.1MB in the beginning and 111.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:07:33,395 INFO L158 Benchmark]: RCFGBuilder took 838.50ms. Allocated memory is still 172.0MB. Free memory was 111.5MB in the beginning and 70.9MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-29 01:07:33,396 INFO L158 Benchmark]: TraceAbstraction took 24254.75ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 70.2MB in the beginning and 120.3MB in the end (delta: -50.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-29 01:07:33,396 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 249.6MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:07:33,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 86.2MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.83ms. Allocated memory is still 172.0MB. Free memory was 135.2MB in the beginning and 121.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.73ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.92ms. Allocated memory is still 172.0MB. Free memory was 117.1MB in the beginning and 111.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 838.50ms. Allocated memory is still 172.0MB. Free memory was 111.5MB in the beginning and 70.9MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 24254.75ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 70.2MB in the beginning and 120.3MB in the end (delta: -50.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 249.6MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short144 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem141 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem142 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short144 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem128 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite143 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem129 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem88 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short144 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite89 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite143 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short105 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem125 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem141 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem129 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite126 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem83 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem142 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem85 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem128 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem124 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short127 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someUnaryDOUBLEoperation at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L22] unsigned short int var_1_1 = 10; [L23] unsigned short int* var_1_1_Pointer = &(var_1_1); [L24] unsigned short int var_1_5 = 200; [L24] unsigned short int var_1_5 = 200; [L25] unsigned short int* var_1_5_Pointer = &(var_1_5); [L26] unsigned short int var_1_6 = 56955; [L26] unsigned short int var_1_6 = 56955; [L27] unsigned short int* var_1_6_Pointer = &(var_1_6); [L28] unsigned short int var_1_7 = 32; [L28] unsigned short int var_1_7 = 32; [L29] unsigned short int* var_1_7_Pointer = &(var_1_7); [L30] unsigned short int var_1_8 = 1; [L30] unsigned short int var_1_8 = 1; [L31] unsigned short int* var_1_8_Pointer = &(var_1_8); [L32] unsigned short int var_1_9 = 8; [L32] unsigned short int var_1_9 = 8; [L33] unsigned short int* var_1_9_Pointer = &(var_1_9); [L34] unsigned char var_1_10 = 1; [L34] unsigned char var_1_10 = 1; [L35] unsigned char* var_1_10_Pointer = &(var_1_10); [L36] float var_1_11 = -0.6; [L36] float var_1_11 = -0.6; [L37] float* var_1_11_Pointer = &(var_1_11); [L38] float var_1_12 = 9.125; [L38] float var_1_12 = 9.125; [L39] float* var_1_12_Pointer = &(var_1_12); [L40] float var_1_13 = 50.5; [L40] float var_1_13 = 50.5; [L41] float* var_1_13_Pointer = &(var_1_13); [L42] unsigned short int last_1_var_1_1 = 10; [L43] unsigned short int last_1_var_1_9 = 8; [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L95] EXPR \read(var_1_1) [L95] last_1_var_1_1 = var_1_1 [L96] EXPR \read(var_1_9) [L96] last_1_var_1_9 = var_1_9 [L106] RET updateLastVariables() [L107] CALL updateVariables() [L74] var_1_5 = __VERIFIER_nondet_ushort() [L75] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L76] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L76] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L76] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L77] var_1_6 = __VERIFIER_nondet_ushort() [L78] EXPR \read(var_1_6) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L78] CALL assume_abort_if_not(var_1_6 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L78] RET assume_abort_if_not(var_1_6 >= 32767) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L79] EXPR \read(var_1_6) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L79] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L79] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L80] var_1_7 = __VERIFIER_nondet_ushort() [L81] EXPR \read(var_1_7) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L81] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L81] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L82] EXPR \read(var_1_7) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L82] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L82] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L83] var_1_8 = __VERIFIER_nondet_ushort() [L84] EXPR \read(var_1_8) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L84] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L84] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L85] EXPR \read(var_1_8) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L85] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L85] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L86] var_1_10 = __VERIFIER_nondet_uchar() [L87] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L87] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L87] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L88] EXPR \read(var_1_10) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L88] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L88] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L89] var_1_12 = __VERIFIER_nondet_float() [L90] EXPR \read(var_1_12) [L90] EXPR var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L90] EXPR var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F [L90] EXPR \read(var_1_12) [L90] EXPR var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L90] EXPR (var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L90] EXPR (var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L90] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L90] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L91] var_1_13 = __VERIFIER_nondet_float() [L92] EXPR \read(var_1_13) [L92] EXPR var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L92] EXPR var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F [L92] EXPR \read(var_1_13) [L92] EXPR var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L92] EXPR (var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L92] EXPR (var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L92] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L92] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L107] RET updateVariables() [L108] CALL step() [L47] COND TRUE last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1) [L48] EXPR \read(*var_1_5_Pointer) [L48] EXPR \read(*var_1_6_Pointer) [L48] EXPR \read(*var_1_7_Pointer) [L48] EXPR \read(*var_1_8_Pointer) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L48] EXPR ((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))) [L48] EXPR \read(*var_1_8_Pointer) [L48] EXPR ((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L48] EXPR (((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))) [L48] EXPR \read(*var_1_5_Pointer) [L48] EXPR (((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L48] (*(var_1_1_Pointer)) = (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))) [L50] EXPR \read(*var_1_10_Pointer) [L50] (*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L50] (*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer))) [L50] EXPR \read(*var_1_6_Pointer) [L50] EXPR \read(*var_1_8_Pointer) [L50] (*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L50] COND FALSE !((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) [L61] EXPR \read(*var_1_6_Pointer) [L61] (*(var_1_9_Pointer)) = (*(var_1_6_Pointer)) [L63] EXPR \read(*var_1_7_Pointer) [L63] EXPR \read(*var_1_6_Pointer) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L63] COND FALSE !((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) [L70] EXPR \read(*var_1_12_Pointer) [L70] (*(var_1_11_Pointer)) = (*(var_1_12_Pointer)) [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR (last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1 [L99] EXPR \read(*var_1_1_Pointer) [L99] EXPR \read(*var_1_5_Pointer) [L99] EXPR \read(*var_1_6_Pointer) [L99] EXPR \read(*var_1_7_Pointer) [L99] EXPR \read(*var_1_8_Pointer) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR ((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))) [L99] EXPR \read(*var_1_8_Pointer) [L99] EXPR ((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR (((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))) [L99] EXPR \read(*var_1_5_Pointer) [L99] EXPR (((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR (last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1 VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR ((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR ((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer))))) [L99] EXPR \read(*var_1_10_Pointer) [L99] EXPR (*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR (*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer))) [L99] EXPR \read(*var_1_6_Pointer) [L99] EXPR \read(*var_1_8_Pointer) [L99] EXPR (*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR ((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))) [L99] EXPR \read(*var_1_9_Pointer) [L99] EXPR \read(*var_1_6_Pointer) [L99] EXPR ((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR ((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR (((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) && (((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) ? (((*(var_1_7_Pointer)) <= (*(var_1_9_Pointer))) ? ((*(var_1_11_Pointer)) == ((float) (((((*(var_1_12_Pointer))) > ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR (((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) && (((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) ? (((*(var_1_7_Pointer)) <= (*(var_1_9_Pointer))) ? ((*(var_1_11_Pointer)) == ((float) (((((*(var_1_12_Pointer))) > ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) [L99] EXPR \read(*var_1_7_Pointer) [L99] EXPR \read(*var_1_6_Pointer) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR ((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) ? (((*(var_1_7_Pointer)) <= (*(var_1_9_Pointer))) ? ((*(var_1_11_Pointer)) == ((float) (((((*(var_1_12_Pointer))) > ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer)))) [L99] EXPR \read(*var_1_11_Pointer) [L99] EXPR \read(*var_1_12_Pointer) [L99] EXPR ((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) ? (((*(var_1_7_Pointer)) <= (*(var_1_9_Pointer))) ? ((*(var_1_11_Pointer)) == ((float) (((((*(var_1_12_Pointer))) > ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer)))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99] EXPR (((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) && (((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) ? (((*(var_1_7_Pointer)) <= (*(var_1_9_Pointer))) ? ((*(var_1_11_Pointer)) == ((float) (((((*(var_1_12_Pointer))) > ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) VAL [isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L99-L100] return (((last_1_var_1_9 <= (last_1_var_1_9 * last_1_var_1_1)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) (((((*(var_1_5_Pointer))) > (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer))))))) ? ((*(var_1_5_Pointer))) : (((((((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) > ((*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))) : ((*(var_1_8_Pointer)))))))))) : 1) && (((*(var_1_10_Pointer)) || ((*(var_1_6_Pointer)) == (*(var_1_8_Pointer)))) ? (((*(var_1_6_Pointer)) <= (((((0) < ((*(var_1_1_Pointer)))) ? (0) : ((*(var_1_1_Pointer))))) << (*(var_1_1_Pointer)))) ? (((*(var_1_10_Pointer)) && ((*(var_1_1_Pointer)) == ((*(var_1_6_Pointer)) * (*(var_1_5_Pointer))))) ? ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer)))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_5_Pointer))))) : ((*(var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(var_1_9_Pointer)) == ((unsigned short int) (*(var_1_6_Pointer)))))) && (((*(var_1_7_Pointer)) != (*(var_1_6_Pointer))) ? (((*(var_1_7_Pointer)) <= (*(var_1_9_Pointer))) ? ((*(var_1_11_Pointer)) == ((float) (((((*(var_1_12_Pointer))) > ((*(var_1_13_Pointer)))) ? ((*(var_1_12_Pointer))) : ((*(var_1_13_Pointer))))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) : ((*(var_1_11_Pointer)) == ((float) (*(var_1_12_Pointer))))) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=10, last_1_var_1_9=8, var_1_10={10:0}, var_1_10_Pointer={10:0}, var_1_11={11:0}, var_1_11_Pointer={11:0}, var_1_12={12:0}, var_1_12_Pointer={12:0}, var_1_13={13:0}, var_1_13_Pointer={13:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_5={5:0}, var_1_5_Pointer={5:0}, var_1_6={6:0}, var_1_6_Pointer={6:0}, var_1_7={7:0}, var_1_7_Pointer={7:0}, var_1_8={8:0}, var_1_8_Pointer={8:0}, var_1_9={9:0}, var_1_9_Pointer={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.0s, OverallIterations: 25, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3751 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3750 mSDsluCounter, 17425 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13307 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3632 IncrementalHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 4118 mSDtfsCounter, 3632 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2676 GetRequests, 2500 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=583occurred in iteration=24, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 24 MinimizatonAttempts, 2608 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2629 NumberOfCodeBlocks, 2629 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2608 ConstructedInterpolants, 0 QuantifiedInterpolants, 6432 SizeOfPredicates, 269 NumberOfNonLiveVariables, 11132 ConjunctsInSsa, 348 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 6798/6864 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 01:07:33,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d3b5dee297a010530e733718cca08900e46ab18a4a35ca825ad2e8828fb51c7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:07:35,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:07:35,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 01:07:35,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:07:35,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:07:35,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:07:35,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:07:35,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:07:35,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:07:35,598 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:07:35,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:07:35,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:07:35,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:07:35,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:07:35,601 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:07:35,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:07:35,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:07:35,603 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:07:35,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:07:35,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:07:35,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:07:35,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:07:35,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:07:35,607 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:07:35,607 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:07:35,608 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:07:35,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:07:35,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:07:35,610 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:07:35,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:07:35,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:07:35,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:07:35,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:07:35,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:07:35,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:07:35,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:07:35,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:07:35,613 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:07:35,613 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:07:35,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:07:35,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:07:35,614 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:07:35,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:07:35,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:07:35,615 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:07:35,615 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d3b5dee297a010530e733718cca08900e46ab18a4a35ca825ad2e8828fb51c7 [2023-11-29 01:07:35,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:07:35,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:07:35,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:07:35,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:07:35,983 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:07:35,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i [2023-11-29 01:07:38,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:07:39,149 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:07:39,150 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i [2023-11-29 01:07:39,163 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data/59ab5a4df/4e5bf2520ace4b058dccbaec983729a0/FLAGf63d4b514 [2023-11-29 01:07:39,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/data/59ab5a4df/4e5bf2520ace4b058dccbaec983729a0 [2023-11-29 01:07:39,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:07:39,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:07:39,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:07:39,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:07:39,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:07:39,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bab7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39, skipping insertion in model container [2023-11-29 01:07:39,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:07:39,420 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i[915,928] [2023-11-29 01:07:39,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:07:39,497 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:07:39,510 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-2.i[915,928] [2023-11-29 01:07:39,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:07:39,568 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:07:39,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39 WrapperNode [2023-11-29 01:07:39,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:07:39,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:07:39,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:07:39,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:07:39,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,637 INFO L138 Inliner]: procedures = 33, calls = 164, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 463 [2023-11-29 01:07:39,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:07:39,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:07:39,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:07:39,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:07:39,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,696 INFO L175 MemorySlicer]: Split 131 memory accesses to 11 slices as follows [2, 12, 14, 22, 16, 14, 12, 8, 7, 14, 10]. 17 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 3, 1, 1]. [2023-11-29 01:07:39,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:07:39,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:07:39,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:07:39,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:07:39,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (1/1) ... [2023-11-29 01:07:39,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:07:39,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:07:39,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:07:39,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:07:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:07:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 01:07:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 01:07:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 01:07:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 01:07:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 01:07:39,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-11-29 01:07:39,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-11-29 01:07:39,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-11-29 01:07:39,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-11-29 01:07:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-11-29 01:07:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-11-29 01:07:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-11-29 01:07:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-11-29 01:07:39,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-11-29 01:07:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-11-29 01:07:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-11-29 01:07:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-11-29 01:07:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2023-11-29 01:07:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2023-11-29 01:07:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2023-11-29 01:07:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2023-11-29 01:07:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10 [2023-11-29 01:07:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:07:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:07:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 01:07:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 01:07:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 01:07:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-29 01:07:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-29 01:07:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-29 01:07:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-29 01:07:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-11-29 01:07:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-11-29 01:07:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-29 01:07:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-29 01:07:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-29 01:07:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-29 01:07:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-29 01:07:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-29 01:07:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-11-29 01:07:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-11-29 01:07:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-11-29 01:07:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-11-29 01:07:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-11-29 01:07:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-11-29 01:07:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-11-29 01:07:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-11-29 01:07:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-11-29 01:07:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-11-29 01:07:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-11-29 01:07:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2023-11-29 01:07:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2023-11-29 01:07:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2023-11-29 01:07:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2023-11-29 01:07:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#10 [2023-11-29 01:07:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-29 01:07:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-29 01:07:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-29 01:07:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-29 01:07:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-29 01:07:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-29 01:07:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-11-29 01:07:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-11-29 01:07:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-11-29 01:07:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-11-29 01:07:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-11-29 01:07:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-11-29 01:07:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-11-29 01:07:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2023-11-29 01:07:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2023-11-29 01:07:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2023-11-29 01:07:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:07:39,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:07:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:07:39,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:07:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-29 01:07:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-29 01:07:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-11-29 01:07:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-11-29 01:07:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-11-29 01:07:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2023-11-29 01:07:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2023-11-29 01:07:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2023-11-29 01:07:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2023-11-29 01:07:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#10 [2023-11-29 01:07:40,075 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:07:40,077 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:07:40,764 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:07:40,824 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:07:40,824 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:07:40,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:40 BoogieIcfgContainer [2023-11-29 01:07:40,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:07:40,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:07:40,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:07:40,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:07:40,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:07:39" (1/3) ... [2023-11-29 01:07:40,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7599e80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:07:40, skipping insertion in model container [2023-11-29 01:07:40,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:07:39" (2/3) ... [2023-11-29 01:07:40,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7599e80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:07:40, skipping insertion in model container [2023-11-29 01:07:40,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:07:40" (3/3) ... [2023-11-29 01:07:40,835 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-2.i [2023-11-29 01:07:40,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:07:40,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:07:40,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:07:40,927 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@104a7445, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:07:40,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:07:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 78 states have (on average 1.5) internal successors, (117), 79 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:40,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:40,949 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:40,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:40,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:40,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1528848566, now seen corresponding path program 1 times [2023-11-29 01:07:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:40,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171357570] [2023-11-29 01:07:40,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:40,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:40,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:40,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:40,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 01:07:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:41,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:07:41,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 01:07:41,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:41,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:41,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171357570] [2023-11-29 01:07:41,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171357570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:41,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:41,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:07:41,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698450347] [2023-11-29 01:07:41,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:07:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:07:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:41,476 INFO L87 Difference]: Start difference. First operand has 93 states, 78 states have (on average 1.5) internal successors, (117), 79 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:41,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:41,538 INFO L93 Difference]: Finished difference Result 183 states and 292 transitions. [2023-11-29 01:07:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:07:41,541 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-11-29 01:07:41,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:41,550 INFO L225 Difference]: With dead ends: 183 [2023-11-29 01:07:41,551 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 01:07:41,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:07:41,559 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:41,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:41,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 01:07:41,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 01:07:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 77 states have internal predecessors, (112), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2023-11-29 01:07:41,606 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 95 [2023-11-29 01:07:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:41,607 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2023-11-29 01:07:41,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2023-11-29 01:07:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:41,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:41,613 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:41,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:41,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:41,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:41,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash -525644406, now seen corresponding path program 1 times [2023-11-29 01:07:41,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:41,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219748652] [2023-11-29 01:07:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:41,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:41,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:41,818 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:41,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 01:07:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:42,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:07:42,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 01:07:42,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:42,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:42,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219748652] [2023-11-29 01:07:42,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219748652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:42,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:42,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:07:42,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114742828] [2023-11-29 01:07:42,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:42,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:07:42,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:42,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:07:42,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:07:42,208 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:42,297 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2023-11-29 01:07:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-11-29 01:07:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:42,300 INFO L225 Difference]: With dead ends: 187 [2023-11-29 01:07:42,300 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 01:07:42,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:42,303 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 10 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:42,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 385 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:07:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 01:07:42,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2023-11-29 01:07:42,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:07:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 138 transitions. [2023-11-29 01:07:42,321 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 138 transitions. Word has length 95 [2023-11-29 01:07:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:42,322 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 138 transitions. [2023-11-29 01:07:42,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:07:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 138 transitions. [2023-11-29 01:07:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:07:42,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:42,325 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:42,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 01:07:42,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:42,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:42,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:42,532 INFO L85 PathProgramCache]: Analyzing trace with hash -453257848, now seen corresponding path program 1 times [2023-11-29 01:07:42,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:42,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952155485] [2023-11-29 01:07:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:42,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:42,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:42,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 01:07:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:42,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:07:42,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:42,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 01:07:42,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 01:07:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:43,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:43,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:43,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952155485] [2023-11-29 01:07:43,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952155485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:43,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:43,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:07:43,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014321124] [2023-11-29 01:07:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:43,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:07:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:43,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:07:43,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:07:43,483 INFO L87 Difference]: Start difference. First operand 93 states and 138 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:43,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:43,841 INFO L93 Difference]: Finished difference Result 278 states and 413 transitions. [2023-11-29 01:07:43,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:07:43,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2023-11-29 01:07:43,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:43,845 INFO L225 Difference]: With dead ends: 278 [2023-11-29 01:07:43,845 INFO L226 Difference]: Without dead ends: 186 [2023-11-29 01:07:43,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:07:43,848 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 121 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:43,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 369 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:43,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-29 01:07:43,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 155. [2023-11-29 01:07:43,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 128 states have (on average 1.4140625) internal successors, (181), 128 states have internal predecessors, (181), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 01:07:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 229 transitions. [2023-11-29 01:07:43,880 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 229 transitions. Word has length 95 [2023-11-29 01:07:43,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:43,882 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 229 transitions. [2023-11-29 01:07:43,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 229 transitions. [2023-11-29 01:07:43,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:07:43,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:43,885 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:43,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 01:07:44,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:44,088 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:44,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -756534863, now seen corresponding path program 1 times [2023-11-29 01:07:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:44,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661842784] [2023-11-29 01:07:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:44,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:44,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:44,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:44,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 01:07:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:44,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:07:44,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:44,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:44,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:44,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661842784] [2023-11-29 01:07:44,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661842784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:44,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:44,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:07:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430470865] [2023-11-29 01:07:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:44,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:07:44,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:44,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:07:44,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:44,470 INFO L87 Difference]: Start difference. First operand 155 states and 229 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:44,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:44,510 INFO L93 Difference]: Finished difference Result 256 states and 380 transitions. [2023-11-29 01:07:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:07:44,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-11-29 01:07:44,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:44,513 INFO L225 Difference]: With dead ends: 256 [2023-11-29 01:07:44,514 INFO L226 Difference]: Without dead ends: 157 [2023-11-29 01:07:44,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:07:44,516 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:44,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 257 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:07:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-29 01:07:44,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2023-11-29 01:07:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 130 states have (on average 1.4076923076923078) internal successors, (183), 130 states have internal predecessors, (183), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 01:07:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 231 transitions. [2023-11-29 01:07:44,534 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 231 transitions. Word has length 101 [2023-11-29 01:07:44,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:44,534 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 231 transitions. [2023-11-29 01:07:44,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 231 transitions. [2023-11-29 01:07:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:07:44,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:44,537 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:44,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 01:07:44,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:44,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:44,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:44,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1777603217, now seen corresponding path program 1 times [2023-11-29 01:07:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:44,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234395008] [2023-11-29 01:07:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:44,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:44,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:44,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:44,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 01:07:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:45,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:45,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:46,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-29 01:07:46,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-29 01:07:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:07:46,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:46,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234395008] [2023-11-29 01:07:46,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234395008] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:46,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:46,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:07:46,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969949459] [2023-11-29 01:07:46,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:46,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:46,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:46,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:46,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:07:46,846 INFO L87 Difference]: Start difference. First operand 157 states and 231 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:47,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:47,381 INFO L93 Difference]: Finished difference Result 314 states and 460 transitions. [2023-11-29 01:07:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:47,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-11-29 01:07:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:47,386 INFO L225 Difference]: With dead ends: 314 [2023-11-29 01:07:47,386 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 01:07:47,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:07:47,388 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 124 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:47,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 500 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:07:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 01:07:47,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 197. [2023-11-29 01:07:47,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 167 states have (on average 1.407185628742515) internal successors, (235), 168 states have internal predecessors, (235), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 287 transitions. [2023-11-29 01:07:47,409 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 287 transitions. Word has length 101 [2023-11-29 01:07:47,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:47,410 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 287 transitions. [2023-11-29 01:07:47,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 287 transitions. [2023-11-29 01:07:47,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:07:47,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:47,412 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:47,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 01:07:47,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:47,616 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:47,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2124337069, now seen corresponding path program 1 times [2023-11-29 01:07:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:47,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382633163] [2023-11-29 01:07:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:47,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:47,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:47,619 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:47,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 01:07:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:47,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:07:47,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:47,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-29 01:07:47,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:07:48,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-11-29 01:07:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:48,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:48,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:48,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382633163] [2023-11-29 01:07:48,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382633163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:48,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:48,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:07:48,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204860987] [2023-11-29 01:07:48,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:48,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:07:48,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:48,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:07:48,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:07:48,122 INFO L87 Difference]: Start difference. First operand 197 states and 287 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:49,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:49,343 INFO L93 Difference]: Finished difference Result 554 states and 819 transitions. [2023-11-29 01:07:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:07:49,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-11-29 01:07:49,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:49,349 INFO L225 Difference]: With dead ends: 554 [2023-11-29 01:07:49,349 INFO L226 Difference]: Without dead ends: 423 [2023-11-29 01:07:49,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:07:49,351 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 530 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:49,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 852 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:07:49,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-29 01:07:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 245. [2023-11-29 01:07:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 215 states have (on average 1.4232558139534883) internal successors, (306), 216 states have internal predecessors, (306), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 358 transitions. [2023-11-29 01:07:49,380 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 358 transitions. Word has length 101 [2023-11-29 01:07:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:49,381 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 358 transitions. [2023-11-29 01:07:49,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:49,382 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 358 transitions. [2023-11-29 01:07:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:49,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:49,383 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:49,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 01:07:49,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:49,584 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:49,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:49,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1693921809, now seen corresponding path program 1 times [2023-11-29 01:07:49,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:49,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655706027] [2023-11-29 01:07:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:49,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:49,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:49,587 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:49,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 01:07:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:49,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:07:49,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:49,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:07:50,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:07:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:50,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:50,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:50,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655706027] [2023-11-29 01:07:50,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655706027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:50,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:50,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274062672] [2023-11-29 01:07:50,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:50,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:50,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:50,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:50,050 INFO L87 Difference]: Start difference. First operand 245 states and 358 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:50,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:50,657 INFO L93 Difference]: Finished difference Result 577 states and 846 transitions. [2023-11-29 01:07:50,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:07:50,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:50,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:50,661 INFO L225 Difference]: With dead ends: 577 [2023-11-29 01:07:50,661 INFO L226 Difference]: Without dead ends: 417 [2023-11-29 01:07:50,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:50,662 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 246 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:50,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 681 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:07:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-29 01:07:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 289. [2023-11-29 01:07:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 259 states have (on average 1.4401544401544402) internal successors, (373), 260 states have internal predecessors, (373), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 425 transitions. [2023-11-29 01:07:50,686 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 425 transitions. Word has length 103 [2023-11-29 01:07:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:50,687 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 425 transitions. [2023-11-29 01:07:50,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 425 transitions. [2023-11-29 01:07:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:50,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:50,689 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:50,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 01:07:50,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:50,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:50,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:50,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1033256115, now seen corresponding path program 1 times [2023-11-29 01:07:50,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:50,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964867104] [2023-11-29 01:07:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:50,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:50,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:50,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 01:07:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:51,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:51,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:52,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2023-11-29 01:07:52,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-29 01:07:52,411 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:07:52,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:52,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:52,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964867104] [2023-11-29 01:07:52,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964867104] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:52,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:52,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:07:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688386655] [2023-11-29 01:07:52,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:52,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:52,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:52,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:07:52,652 INFO L87 Difference]: Start difference. First operand 289 states and 425 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:52,972 INFO L93 Difference]: Finished difference Result 556 states and 813 transitions. [2023-11-29 01:07:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:52,977 INFO L225 Difference]: With dead ends: 556 [2023-11-29 01:07:52,977 INFO L226 Difference]: Without dead ends: 370 [2023-11-29 01:07:52,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:07:52,978 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 146 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:52,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 462 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:52,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-29 01:07:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 330. [2023-11-29 01:07:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 299 states have (on average 1.4414715719063544) internal successors, (431), 300 states have internal predecessors, (431), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:52,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 483 transitions. [2023-11-29 01:07:52,997 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 483 transitions. Word has length 103 [2023-11-29 01:07:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:52,997 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 483 transitions. [2023-11-29 01:07:52,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 483 transitions. [2023-11-29 01:07:52,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:52,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:52,999 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:53,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 01:07:53,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:53,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:53,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash 215607665, now seen corresponding path program 1 times [2023-11-29 01:07:53,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:53,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813547837] [2023-11-29 01:07:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:53,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:53,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:53,201 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:53,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 01:07:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:53,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:07:53,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:53,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:07:53,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-11-29 01:07:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:53,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:07:53,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813547837] [2023-11-29 01:07:53,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813547837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:07:53,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:07:53,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:07:53,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772946458] [2023-11-29 01:07:53,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:53,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:07:53,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:53,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:07:53,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:07:53,633 INFO L87 Difference]: Start difference. First operand 330 states and 483 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:54,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:54,350 INFO L93 Difference]: Finished difference Result 764 states and 1129 transitions. [2023-11-29 01:07:54,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:07:54,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:54,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:54,354 INFO L225 Difference]: With dead ends: 764 [2023-11-29 01:07:54,354 INFO L226 Difference]: Without dead ends: 561 [2023-11-29 01:07:54,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:07:54,355 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 194 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:54,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 865 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:07:54,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-29 01:07:54,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 413. [2023-11-29 01:07:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 382 states have (on average 1.4528795811518325) internal successors, (555), 383 states have internal predecessors, (555), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 607 transitions. [2023-11-29 01:07:54,385 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 607 transitions. Word has length 103 [2023-11-29 01:07:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:54,385 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 607 transitions. [2023-11-29 01:07:54,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:54,385 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 607 transitions. [2023-11-29 01:07:54,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:07:54,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:54,387 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:54,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 01:07:54,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:54,588 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:54,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:54,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1475067091, now seen corresponding path program 1 times [2023-11-29 01:07:54,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:54,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932227000] [2023-11-29 01:07:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:54,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:54,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:54,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:54,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 01:07:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:54,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:54,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:55,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2023-11-29 01:07:55,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-29 01:07:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:07:56,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:56,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:56,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932227000] [2023-11-29 01:07:56,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932227000] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:56,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:56,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:07:56,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305144487] [2023-11-29 01:07:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:56,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:07:56,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:56,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:07:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:07:56,217 INFO L87 Difference]: Start difference. First operand 413 states and 607 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:56,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:56,585 INFO L93 Difference]: Finished difference Result 752 states and 1106 transitions. [2023-11-29 01:07:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:07:56,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-11-29 01:07:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:56,590 INFO L225 Difference]: With dead ends: 752 [2023-11-29 01:07:56,590 INFO L226 Difference]: Without dead ends: 501 [2023-11-29 01:07:56,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:07:56,591 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 154 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:56,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 464 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:07:56,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-29 01:07:56,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 386. [2023-11-29 01:07:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 355 states have (on average 1.4535211267605634) internal successors, (516), 356 states have internal predecessors, (516), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 568 transitions. [2023-11-29 01:07:56,614 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 568 transitions. Word has length 103 [2023-11-29 01:07:56,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:56,615 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 568 transitions. [2023-11-29 01:07:56,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:56,615 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 568 transitions. [2023-11-29 01:07:56,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:56,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:56,617 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:56,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:56,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:56,820 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:56,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:56,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1462780566, now seen corresponding path program 1 times [2023-11-29 01:07:56,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:56,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079284366] [2023-11-29 01:07:56,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:56,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:56,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:56,822 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:56,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 01:07:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:57,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:07:57,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:58,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 01:07:58,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:07:58,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 01:07:58,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2023-11-29 01:07:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:07:58,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:07:58,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:07:58,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079284366] [2023-11-29 01:07:58,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079284366] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:58,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:58,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2023-11-29 01:07:58,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77744757] [2023-11-29 01:07:58,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:07:58,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:07:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:07:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:07:58,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:07:58,746 INFO L87 Difference]: Start difference. First operand 386 states and 568 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:59,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:07:59,318 INFO L93 Difference]: Finished difference Result 829 states and 1211 transitions. [2023-11-29 01:07:59,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:07:59,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-11-29 01:07:59,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:07:59,324 INFO L225 Difference]: With dead ends: 829 [2023-11-29 01:07:59,324 INFO L226 Difference]: Without dead ends: 587 [2023-11-29 01:07:59,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:07:59,326 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 274 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:07:59,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 665 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:07:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-29 01:07:59,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 482. [2023-11-29 01:07:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 451 states have (on average 1.441241685144124) internal successors, (650), 452 states have internal predecessors, (650), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:07:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 702 transitions. [2023-11-29 01:07:59,360 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 702 transitions. Word has length 104 [2023-11-29 01:07:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:07:59,361 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 702 transitions. [2023-11-29 01:07:59,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:07:59,361 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 702 transitions. [2023-11-29 01:07:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 01:07:59,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:07:59,364 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:07:59,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-29 01:07:59,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:59,565 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:07:59,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:07:59,565 INFO L85 PathProgramCache]: Analyzing trace with hash -890852081, now seen corresponding path program 1 times [2023-11-29 01:07:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:07:59,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560581695] [2023-11-29 01:07:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:07:59,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:07:59,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:07:59,568 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:07:59,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 01:07:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:07:59,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:07:59,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:00,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-11-29 01:08:00,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 01:08:00,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:08:00,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:08:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:08:00,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:01,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:08:01,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2023-11-29 01:08:01,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:01,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560581695] [2023-11-29 01:08:01,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560581695] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:01,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1694162272] [2023-11-29 01:08:01,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:01,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:08:01,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:08:01,608 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:08:01,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-29 01:08:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:02,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:08:02,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:02,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:08:03,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 01:08:05,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 01:08:05,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:08:05,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:08:05,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 01:08:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 188 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 01:08:05,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:05,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2023-11-29 01:08:06,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1694162272] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:06,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:08:06,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2023-11-29 01:08:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758994941] [2023-11-29 01:08:06,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:08:06,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 01:08:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:06,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 01:08:06,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1104, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 01:08:06,336 INFO L87 Difference]: Start difference. First operand 482 states and 702 transitions. Second operand has 28 states, 24 states have (on average 4.416666666666667) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 7 states have call predecessors, (24), 11 states have call successors, (24) [2023-11-29 01:08:10,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:10,374 INFO L93 Difference]: Finished difference Result 874 states and 1244 transitions. [2023-11-29 01:08:10,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 01:08:10,375 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 4.416666666666667) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 7 states have call predecessors, (24), 11 states have call successors, (24) Word has length 104 [2023-11-29 01:08:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:10,379 INFO L225 Difference]: With dead ends: 874 [2023-11-29 01:08:10,379 INFO L226 Difference]: Without dead ends: 562 [2023-11-29 01:08:10,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=759, Invalid=3147, Unknown=0, NotChecked=0, Total=3906 [2023-11-29 01:08:10,382 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 850 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:10,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 997 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:08:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-11-29 01:08:10,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 506. [2023-11-29 01:08:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 469 states have (on average 1.4072494669509594) internal successors, (660), 470 states have internal predecessors, (660), 26 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:08:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 712 transitions. [2023-11-29 01:08:10,428 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 712 transitions. Word has length 104 [2023-11-29 01:08:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:10,428 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 712 transitions. [2023-11-29 01:08:10,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 4.416666666666667) internal successors, (106), 23 states have internal predecessors, (106), 11 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 7 states have call predecessors, (24), 11 states have call successors, (24) [2023-11-29 01:08:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 712 transitions. [2023-11-29 01:08:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:08:10,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:10,430 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:10,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 01:08:10,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-11-29 01:08:10,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:08:10,831 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:10,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1355999957, now seen corresponding path program 1 times [2023-11-29 01:08:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:10,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603629078] [2023-11-29 01:08:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:10,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:10,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:10,834 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:10,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 01:08:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:11,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:08:11,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:11,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-29 01:08:11,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:08:11,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-11-29 01:08:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:08:11,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:11,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:11,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603629078] [2023-11-29 01:08:11,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603629078] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:11,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:11,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 17 [2023-11-29 01:08:11,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610771783] [2023-11-29 01:08:11,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:11,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:08:11,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:08:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:08:11,789 INFO L87 Difference]: Start difference. First operand 506 states and 712 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:12,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:12,857 INFO L93 Difference]: Finished difference Result 1144 states and 1620 transitions. [2023-11-29 01:08:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:08:12,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-11-29 01:08:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:12,863 INFO L225 Difference]: With dead ends: 1144 [2023-11-29 01:08:12,863 INFO L226 Difference]: Without dead ends: 828 [2023-11-29 01:08:12,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:08:12,865 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 331 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:12,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1721 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:08:12,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-11-29 01:08:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 576. [2023-11-29 01:08:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 539 states have (on average 1.4100185528756957) internal successors, (760), 540 states have internal predecessors, (760), 26 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:08:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 812 transitions. [2023-11-29 01:08:12,919 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 812 transitions. Word has length 105 [2023-11-29 01:08:12,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:12,919 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 812 transitions. [2023-11-29 01:08:12,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:12,920 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 812 transitions. [2023-11-29 01:08:12,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:08:12,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:12,922 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:12,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 01:08:13,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:13,122 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:13,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1749026967, now seen corresponding path program 1 times [2023-11-29 01:08:13,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:13,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116484231] [2023-11-29 01:08:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:13,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:13,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:13,124 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:13,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 01:08:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:13,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:08:13,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:14,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-29 01:08:14,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-29 01:08:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:08:14,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:14,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116484231] [2023-11-29 01:08:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116484231] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:14,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:14,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:08:14,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843540060] [2023-11-29 01:08:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:14,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:08:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:08:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:08:14,773 INFO L87 Difference]: Start difference. First operand 576 states and 812 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:15,309 INFO L93 Difference]: Finished difference Result 1030 states and 1461 transitions. [2023-11-29 01:08:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:08:15,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-11-29 01:08:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:15,314 INFO L225 Difference]: With dead ends: 1030 [2023-11-29 01:08:15,314 INFO L226 Difference]: Without dead ends: 674 [2023-11-29 01:08:15,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:08:15,316 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 85 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:15,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 499 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:08:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-11-29 01:08:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 584. [2023-11-29 01:08:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 547 states have (on average 1.4076782449725778) internal successors, (770), 548 states have internal predecessors, (770), 26 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:08:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 822 transitions. [2023-11-29 01:08:15,368 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 822 transitions. Word has length 105 [2023-11-29 01:08:15,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:15,369 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 822 transitions. [2023-11-29 01:08:15,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 822 transitions. [2023-11-29 01:08:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:15,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:15,371 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:15,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 01:08:15,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:15,572 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:15,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:15,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1984533345, now seen corresponding path program 1 times [2023-11-29 01:08:15,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:15,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494456054] [2023-11-29 01:08:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:15,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:15,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:15,574 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:15,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 01:08:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:15,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:08:15,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:16,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:08:17,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:08:17,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 80 [2023-11-29 01:08:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 01:08:17,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:17,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:17,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494456054] [2023-11-29 01:08:17,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494456054] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:17,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1390392047] [2023-11-29 01:08:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:17,421 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:08:17,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:08:17,422 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:08:17,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-29 01:08:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:18,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:08:18,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:19,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:08:20,873 INFO L349 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2023-11-29 01:08:20,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 01:08:21,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:08:21,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 80 [2023-11-29 01:08:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 01:08:21,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:21,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1390392047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:21,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:08:21,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-29 01:08:21,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221827002] [2023-11-29 01:08:21,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:08:21,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 01:08:21,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 01:08:21,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:08:21,500 INFO L87 Difference]: Start difference. First operand 584 states and 822 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 01:08:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:26,656 INFO L93 Difference]: Finished difference Result 1443 states and 2014 transitions. [2023-11-29 01:08:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 01:08:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 106 [2023-11-29 01:08:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:26,665 INFO L225 Difference]: With dead ends: 1443 [2023-11-29 01:08:26,666 INFO L226 Difference]: Without dead ends: 1441 [2023-11-29 01:08:26,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=255, Invalid=1227, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 01:08:26,668 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 709 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:26,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1602 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 01:08:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2023-11-29 01:08:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1278. [2023-11-29 01:08:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1202 states have (on average 1.4068219633943428) internal successors, (1691), 1207 states have internal predecessors, (1691), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:26,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1799 transitions. [2023-11-29 01:08:26,776 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1799 transitions. Word has length 106 [2023-11-29 01:08:26,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:26,776 INFO L495 AbstractCegarLoop]: Abstraction has 1278 states and 1799 transitions. [2023-11-29 01:08:26,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 16 states have internal predecessors, (100), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 01:08:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1799 transitions. [2023-11-29 01:08:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:26,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:26,780 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:26,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-29 01:08:26,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-11-29 01:08:27,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:08:27,181 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:27,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:27,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1979051542, now seen corresponding path program 1 times [2023-11-29 01:08:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:27,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892966830] [2023-11-29 01:08:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:27,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:27,183 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:27,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 01:08:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:27,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 01:08:27,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:28,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2023-11-29 01:08:28,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:08:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:08:29,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:29,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:29,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892966830] [2023-11-29 01:08:29,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892966830] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:29,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:29,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 22 [2023-11-29 01:08:29,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738272138] [2023-11-29 01:08:29,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:29,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:08:29,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:29,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:08:29,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:08:29,787 INFO L87 Difference]: Start difference. First operand 1278 states and 1799 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:31,104 INFO L93 Difference]: Finished difference Result 3032 states and 4318 transitions. [2023-11-29 01:08:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:08:31,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:31,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:31,114 INFO L225 Difference]: With dead ends: 3032 [2023-11-29 01:08:31,114 INFO L226 Difference]: Without dead ends: 2161 [2023-11-29 01:08:31,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:08:31,116 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 335 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:31,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 637 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:08:31,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2023-11-29 01:08:31,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1275. [2023-11-29 01:08:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1199 states have (on average 1.4053377814845704) internal successors, (1685), 1204 states have internal predecessors, (1685), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1793 transitions. [2023-11-29 01:08:31,247 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1793 transitions. Word has length 106 [2023-11-29 01:08:31,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:31,248 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1793 transitions. [2023-11-29 01:08:31,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:31,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1793 transitions. [2023-11-29 01:08:31,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:31,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:31,251 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:31,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 01:08:31,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:31,459 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:31,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:31,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1705115392, now seen corresponding path program 1 times [2023-11-29 01:08:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:31,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365302589] [2023-11-29 01:08:31,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:31,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:31,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:31,462 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:31,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 01:08:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:31,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:08:31,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:32,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:08:32,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:08:33,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-29 01:08:33,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-29 01:08:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:33,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:33,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2023-11-29 01:08:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:33,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:33,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365302589] [2023-11-29 01:08:33,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365302589] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:33,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:33,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 22 [2023-11-29 01:08:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94176083] [2023-11-29 01:08:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:33,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:08:33,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:33,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:08:33,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:08:33,859 INFO L87 Difference]: Start difference. First operand 1275 states and 1793 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:35,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:35,487 INFO L93 Difference]: Finished difference Result 2511 states and 3564 transitions. [2023-11-29 01:08:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:08:35,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:35,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:35,498 INFO L225 Difference]: With dead ends: 2511 [2023-11-29 01:08:35,498 INFO L226 Difference]: Without dead ends: 1643 [2023-11-29 01:08:35,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:08:35,501 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 182 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:35,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1021 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:08:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2023-11-29 01:08:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1275. [2023-11-29 01:08:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1199 states have (on average 1.4053377814845704) internal successors, (1685), 1204 states have internal predecessors, (1685), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1793 transitions. [2023-11-29 01:08:35,651 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1793 transitions. Word has length 106 [2023-11-29 01:08:35,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:35,652 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1793 transitions. [2023-11-29 01:08:35,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:35,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1793 transitions. [2023-11-29 01:08:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:35,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:35,656 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:35,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 01:08:35,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:35,856 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:35,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash -100322942, now seen corresponding path program 1 times [2023-11-29 01:08:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:35,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036639172] [2023-11-29 01:08:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:35,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:35,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:35,859 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:35,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-29 01:08:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:36,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:08:36,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:37,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 01:08:37,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:08:37,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-29 01:08:37,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-11-29 01:08:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:37,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:37,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2023-11-29 01:08:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:38,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:38,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036639172] [2023-11-29 01:08:38,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036639172] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:38,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:38,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2023-11-29 01:08:38,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457624542] [2023-11-29 01:08:38,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:38,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:08:38,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:38,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:08:38,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:08:38,089 INFO L87 Difference]: Start difference. First operand 1275 states and 1793 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:39,791 INFO L93 Difference]: Finished difference Result 2952 states and 4191 transitions. [2023-11-29 01:08:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:08:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:39,801 INFO L225 Difference]: With dead ends: 2952 [2023-11-29 01:08:39,801 INFO L226 Difference]: Without dead ends: 2084 [2023-11-29 01:08:39,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:08:39,804 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 294 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:39,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 799 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:08:39,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2023-11-29 01:08:39,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1275. [2023-11-29 01:08:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1199 states have (on average 1.4053377814845704) internal successors, (1685), 1204 states have internal predecessors, (1685), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1793 transitions. [2023-11-29 01:08:39,948 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1793 transitions. Word has length 106 [2023-11-29 01:08:39,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:39,949 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1793 transitions. [2023-11-29 01:08:39,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1793 transitions. [2023-11-29 01:08:39,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:39,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:39,952 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:39,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-11-29 01:08:40,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:40,153 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:40,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:40,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2119600152, now seen corresponding path program 1 times [2023-11-29 01:08:40,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:40,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944583497] [2023-11-29 01:08:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:40,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:40,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:40,155 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:40,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 01:08:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:40,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:08:40,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:41,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 01:08:41,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2023-11-29 01:08:41,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2023-11-29 01:08:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:41,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:42,307 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:42,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944583497] [2023-11-29 01:08:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944583497] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:42,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:42,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2023-11-29 01:08:42,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552837398] [2023-11-29 01:08:42,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:42,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:08:42,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:42,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:08:42,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:08:42,310 INFO L87 Difference]: Start difference. First operand 1275 states and 1793 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:43,497 INFO L93 Difference]: Finished difference Result 2598 states and 3685 transitions. [2023-11-29 01:08:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:08:43,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:43,505 INFO L225 Difference]: With dead ends: 2598 [2023-11-29 01:08:43,506 INFO L226 Difference]: Without dead ends: 1730 [2023-11-29 01:08:43,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:08:43,508 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 321 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:43,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 670 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:08:43,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-11-29 01:08:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1276. [2023-11-29 01:08:43,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1200 states have (on average 1.405) internal successors, (1686), 1205 states have internal predecessors, (1686), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1794 transitions. [2023-11-29 01:08:43,598 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1794 transitions. Word has length 106 [2023-11-29 01:08:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:43,599 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1794 transitions. [2023-11-29 01:08:43,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1794 transitions. [2023-11-29 01:08:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:43,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:43,601 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:43,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:08:43,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:43,801 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:43,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:43,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1861434714, now seen corresponding path program 1 times [2023-11-29 01:08:43,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:43,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804178401] [2023-11-29 01:08:43,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:43,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:43,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:43,804 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:43,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-11-29 01:08:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:44,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:08:44,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:44,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 01:08:44,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 01:08:44,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:08:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:08:44,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:44,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:44,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804178401] [2023-11-29 01:08:44,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804178401] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:44,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:44,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-29 01:08:44,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919681195] [2023-11-29 01:08:44,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:44,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:08:44,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:44,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:08:44,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:08:44,830 INFO L87 Difference]: Start difference. First operand 1276 states and 1794 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:45,433 INFO L93 Difference]: Finished difference Result 2557 states and 3623 transitions. [2023-11-29 01:08:45,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:08:45,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:45,443 INFO L225 Difference]: With dead ends: 2557 [2023-11-29 01:08:45,443 INFO L226 Difference]: Without dead ends: 1688 [2023-11-29 01:08:45,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:08:45,445 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 231 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:45,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 483 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:08:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2023-11-29 01:08:45,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1181. [2023-11-29 01:08:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1105 states have (on average 1.4009049773755655) internal successors, (1548), 1110 states have internal predecessors, (1548), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1656 transitions. [2023-11-29 01:08:45,563 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1656 transitions. Word has length 106 [2023-11-29 01:08:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:45,564 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1656 transitions. [2023-11-29 01:08:45,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1656 transitions. [2023-11-29 01:08:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:45,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:45,566 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:45,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-11-29 01:08:45,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:45,767 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:45,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:45,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1468407704, now seen corresponding path program 1 times [2023-11-29 01:08:45,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:45,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170674580] [2023-11-29 01:08:45,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:45,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:45,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:45,769 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:45,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-29 01:08:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:46,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 01:08:46,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:47,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 01:08:47,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 01:08:47,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2023-11-29 01:08:47,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-11-29 01:08:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:47,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:48,037 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:48,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:48,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170674580] [2023-11-29 01:08:48,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170674580] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:48,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:48,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:08:48,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108693408] [2023-11-29 01:08:48,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:48,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:08:48,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:48,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:08:48,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:08:48,040 INFO L87 Difference]: Start difference. First operand 1181 states and 1656 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:48,919 INFO L93 Difference]: Finished difference Result 2721 states and 3854 transitions. [2023-11-29 01:08:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:08:48,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:48,930 INFO L225 Difference]: With dead ends: 2721 [2023-11-29 01:08:48,930 INFO L226 Difference]: Without dead ends: 1890 [2023-11-29 01:08:48,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:08:48,933 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 198 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:48,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 473 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:08:48,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2023-11-29 01:08:49,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1177. [2023-11-29 01:08:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1101 states have (on average 1.3941871026339692) internal successors, (1535), 1106 states have internal predecessors, (1535), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1643 transitions. [2023-11-29 01:08:49,034 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1643 transitions. Word has length 106 [2023-11-29 01:08:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:49,035 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 1643 transitions. [2023-11-29 01:08:49,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1643 transitions. [2023-11-29 01:08:49,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:49,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:49,037 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:49,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-11-29 01:08:49,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:49,238 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:49,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:49,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1564566782, now seen corresponding path program 1 times [2023-11-29 01:08:49,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:49,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764481025] [2023-11-29 01:08:49,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:49,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:49,240 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:49,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-11-29 01:08:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:49,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:08:49,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:50,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2023-11-29 01:08:50,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2023-11-29 01:08:50,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2023-11-29 01:08:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:50,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:51,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:51,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [764481025] [2023-11-29 01:08:51,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [764481025] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:51,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:51,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2023-11-29 01:08:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293909219] [2023-11-29 01:08:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:51,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:08:51,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:08:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:08:51,333 INFO L87 Difference]: Start difference. First operand 1177 states and 1643 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:52,418 INFO L93 Difference]: Finished difference Result 2448 states and 3445 transitions. [2023-11-29 01:08:52,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:08:52,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:52,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:52,426 INFO L225 Difference]: With dead ends: 2448 [2023-11-29 01:08:52,426 INFO L226 Difference]: Without dead ends: 1616 [2023-11-29 01:08:52,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:08:52,428 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 170 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:52,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 923 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:08:52,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2023-11-29 01:08:52,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1177. [2023-11-29 01:08:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1101 states have (on average 1.3896457765667576) internal successors, (1530), 1106 states have internal predecessors, (1530), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:52,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1638 transitions. [2023-11-29 01:08:52,507 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1638 transitions. Word has length 106 [2023-11-29 01:08:52,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:52,508 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 1638 transitions. [2023-11-29 01:08:52,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:52,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1638 transitions. [2023-11-29 01:08:52,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:52,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:52,511 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:52,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-11-29 01:08:52,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:52,711 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:52,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:52,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1171539772, now seen corresponding path program 1 times [2023-11-29 01:08:52,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:52,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504640605] [2023-11-29 01:08:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:52,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:52,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:52,714 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:52,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-29 01:08:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:53,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 01:08:53,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:54,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2023-11-29 01:08:54,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2023-11-29 01:08:54,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-29 01:08:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:54,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:54,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:54,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504640605] [2023-11-29 01:08:54,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504640605] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:54,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:54,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 19 [2023-11-29 01:08:54,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356453555] [2023-11-29 01:08:54,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:54,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:08:54,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:54,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:08:54,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:08:54,995 INFO L87 Difference]: Start difference. First operand 1177 states and 1638 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:08:56,256 INFO L93 Difference]: Finished difference Result 2848 states and 3985 transitions. [2023-11-29 01:08:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:08:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:08:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:08:56,268 INFO L225 Difference]: With dead ends: 2848 [2023-11-29 01:08:56,268 INFO L226 Difference]: Without dead ends: 2011 [2023-11-29 01:08:56,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:08:56,270 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 186 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:08:56,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 931 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:08:56,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2023-11-29 01:08:56,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1286. [2023-11-29 01:08:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1210 states have (on average 1.3884297520661157) internal successors, (1680), 1215 states have internal predecessors, (1680), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:08:56,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1788 transitions. [2023-11-29 01:08:56,354 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1788 transitions. Word has length 106 [2023-11-29 01:08:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:08:56,354 INFO L495 AbstractCegarLoop]: Abstraction has 1286 states and 1788 transitions. [2023-11-29 01:08:56,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:08:56,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1788 transitions. [2023-11-29 01:08:56,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 01:08:56,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:08:56,356 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:08:56,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-11-29 01:08:56,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:56,557 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:08:56,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:08:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash -633898562, now seen corresponding path program 1 times [2023-11-29 01:08:56,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:08:56,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349102673] [2023-11-29 01:08:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:08:56,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:08:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:08:56,559 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:08:56,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-11-29 01:08:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:08:56,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:08:56,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:08:57,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2023-11-29 01:08:57,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-29 01:08:57,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-29 01:08:57,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-11-29 01:08:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 01:08:58,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:08:58,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2023-11-29 01:08:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:08:58,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:08:58,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349102673] [2023-11-29 01:08:58,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349102673] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:08:58,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:08:58,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 20 [2023-11-29 01:08:58,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987524685] [2023-11-29 01:08:58,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:08:58,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:08:58,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:08:58,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:08:58,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:08:58,844 INFO L87 Difference]: Start difference. First operand 1286 states and 1788 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:00,644 INFO L93 Difference]: Finished difference Result 2885 states and 4038 transitions. [2023-11-29 01:09:00,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:09:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-11-29 01:09:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:00,654 INFO L225 Difference]: With dead ends: 2885 [2023-11-29 01:09:00,654 INFO L226 Difference]: Without dead ends: 1991 [2023-11-29 01:09:00,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:09:00,657 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 360 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:00,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 947 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:09:00,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2023-11-29 01:09:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1172. [2023-11-29 01:09:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1096 states have (on average 1.3868613138686132) internal successors, (1520), 1101 states have internal predecessors, (1520), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 49 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 01:09:00,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1628 transitions. [2023-11-29 01:09:00,736 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1628 transitions. Word has length 106 [2023-11-29 01:09:00,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:00,737 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1628 transitions. [2023-11-29 01:09:00,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:00,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1628 transitions. [2023-11-29 01:09:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 01:09:00,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:00,739 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:00,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-11-29 01:09:00,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:00,940 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:00,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash 628755032, now seen corresponding path program 1 times [2023-11-29 01:09:00,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:00,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895033609] [2023-11-29 01:09:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:00,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:00,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:00,942 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:00,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-29 01:09:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:01,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:09:01,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 2 proven. 114 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:09:01,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:01,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:01,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895033609] [2023-11-29 01:09:01,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895033609] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:01,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:01,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-11-29 01:09:01,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021272233] [2023-11-29 01:09:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:01,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:01,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:09:01,908 INFO L87 Difference]: Start difference. First operand 1172 states and 1628 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:02,142 INFO L93 Difference]: Finished difference Result 2816 states and 3945 transitions. [2023-11-29 01:09:02,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:09:02,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2023-11-29 01:09:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:02,151 INFO L225 Difference]: With dead ends: 2816 [2023-11-29 01:09:02,151 INFO L226 Difference]: Without dead ends: 1989 [2023-11-29 01:09:02,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:09:02,154 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 164 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:02,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 480 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:09:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2023-11-29 01:09:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1859. [2023-11-29 01:09:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1737 states have (on average 1.3926309729418538) internal successors, (2419), 1748 states have internal predecessors, (2419), 84 states have call successors, (84), 37 states have call predecessors, (84), 37 states have return successors, (84), 73 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 01:09:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2587 transitions. [2023-11-29 01:09:02,301 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2587 transitions. Word has length 107 [2023-11-29 01:09:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:02,301 INFO L495 AbstractCegarLoop]: Abstraction has 1859 states and 2587 transitions. [2023-11-29 01:09:02,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:02,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2587 transitions. [2023-11-29 01:09:02,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 01:09:02,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:02,304 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:02,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-11-29 01:09:02,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:02,504 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:02,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:02,505 INFO L85 PathProgramCache]: Analyzing trace with hash 847609750, now seen corresponding path program 1 times [2023-11-29 01:09:02,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:02,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418947560] [2023-11-29 01:09:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:02,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:02,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:02,506 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:02,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-11-29 01:09:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:02,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:09:02,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:03,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:09:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:04,220 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:04,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:04,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418947560] [2023-11-29 01:09:04,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418947560] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:04,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:04,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2023-11-29 01:09:04,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303153756] [2023-11-29 01:09:04,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:04,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:09:04,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:09:04,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:09:04,548 INFO L87 Difference]: Start difference. First operand 1859 states and 2587 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:05,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:05,257 INFO L93 Difference]: Finished difference Result 3597 states and 4986 transitions. [2023-11-29 01:09:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:09:05,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 107 [2023-11-29 01:09:05,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:05,267 INFO L225 Difference]: With dead ends: 3597 [2023-11-29 01:09:05,267 INFO L226 Difference]: Without dead ends: 2225 [2023-11-29 01:09:05,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:09:05,270 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 235 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:05,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 722 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:09:05,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2023-11-29 01:09:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 1747. [2023-11-29 01:09:05,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1631 states have (on average 1.3881054567749846) internal successors, (2264), 1639 states have internal predecessors, (2264), 78 states have call successors, (78), 37 states have call predecessors, (78), 37 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2420 transitions. [2023-11-29 01:09:05,391 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2420 transitions. Word has length 107 [2023-11-29 01:09:05,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:05,391 INFO L495 AbstractCegarLoop]: Abstraction has 1747 states and 2420 transitions. [2023-11-29 01:09:05,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2420 transitions. [2023-11-29 01:09:05,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:05,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:05,393 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:05,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-11-29 01:09:05,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:05,594 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:05,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1202393385, now seen corresponding path program 1 times [2023-11-29 01:09:05,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:05,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96349735] [2023-11-29 01:09:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:05,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:05,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:05,596 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:05,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-11-29 01:09:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:05,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:09:05,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:06,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 43 [2023-11-29 01:09:06,125 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:09:06,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:06,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2023-11-29 01:09:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 01:09:06,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:06,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96349735] [2023-11-29 01:09:06,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96349735] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:09:06,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:09:06,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-11-29 01:09:06,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700502670] [2023-11-29 01:09:06,299 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:09:06,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:09:06,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:06,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:09:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:09:06,301 INFO L87 Difference]: Start difference. First operand 1747 states and 2420 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-29 01:09:07,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:07,049 INFO L93 Difference]: Finished difference Result 3284 states and 4538 transitions. [2023-11-29 01:09:07,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:09:07,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 108 [2023-11-29 01:09:07,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:07,053 INFO L225 Difference]: With dead ends: 3284 [2023-11-29 01:09:07,053 INFO L226 Difference]: Without dead ends: 1787 [2023-11-29 01:09:07,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:09:07,058 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 124 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:07,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 693 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:09:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2023-11-29 01:09:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1743. [2023-11-29 01:09:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1627 states have (on average 1.38660110633067) internal successors, (2256), 1635 states have internal predecessors, (2256), 78 states have call successors, (78), 37 states have call predecessors, (78), 37 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:07,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2412 transitions. [2023-11-29 01:09:07,201 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2412 transitions. Word has length 108 [2023-11-29 01:09:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:07,201 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2412 transitions. [2023-11-29 01:09:07,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-29 01:09:07,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2412 transitions. [2023-11-29 01:09:07,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:07,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:07,204 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:07,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-11-29 01:09:07,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:07,405 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:07,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:07,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1708088815, now seen corresponding path program 1 times [2023-11-29 01:09:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:07,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39834521] [2023-11-29 01:09:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:07,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:07,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:07,407 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:07,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-11-29 01:09:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:07,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:09:07,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:08,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-29 01:09:08,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-29 01:09:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:08,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:09,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:09,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39834521] [2023-11-29 01:09:09,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39834521] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:09,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:09,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:09:09,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64820612] [2023-11-29 01:09:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:09,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:09,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:09,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:09:09,169 INFO L87 Difference]: Start difference. First operand 1743 states and 2412 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:09,556 INFO L93 Difference]: Finished difference Result 3177 states and 4372 transitions. [2023-11-29 01:09:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:09:09,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:09,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:09,560 INFO L225 Difference]: With dead ends: 3177 [2023-11-29 01:09:09,560 INFO L226 Difference]: Without dead ends: 1907 [2023-11-29 01:09:09,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:09:09,562 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 40 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:09,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 465 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:09:09,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2023-11-29 01:09:09,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1835. [2023-11-29 01:09:09,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1719 states have (on average 1.3810354857475275) internal successors, (2374), 1727 states have internal predecessors, (2374), 78 states have call successors, (78), 37 states have call predecessors, (78), 37 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2530 transitions. [2023-11-29 01:09:09,669 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2530 transitions. Word has length 108 [2023-11-29 01:09:09,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:09,669 INFO L495 AbstractCegarLoop]: Abstraction has 1835 states and 2530 transitions. [2023-11-29 01:09:09,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2530 transitions. [2023-11-29 01:09:09,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:09,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:09,671 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:09,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-11-29 01:09:09,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:09,871 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:09,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2065288915, now seen corresponding path program 1 times [2023-11-29 01:09:09,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:09,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115054980] [2023-11-29 01:09:09,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:09,873 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:09,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:09,874 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:09,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-11-29 01:09:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:10,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:09:10,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 01:09:10,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:10,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115054980] [2023-11-29 01:09:10,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115054980] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:10,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:10,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2023-11-29 01:09:10,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081431826] [2023-11-29 01:09:10,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:10,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:10,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:10,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:10,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:09:10,650 INFO L87 Difference]: Start difference. First operand 1835 states and 2530 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:11,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:11,028 INFO L93 Difference]: Finished difference Result 3346 states and 4605 transitions. [2023-11-29 01:09:11,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:09:11,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:11,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:11,034 INFO L225 Difference]: With dead ends: 3346 [2023-11-29 01:09:11,034 INFO L226 Difference]: Without dead ends: 1984 [2023-11-29 01:09:11,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:09:11,037 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 156 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:11,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 330 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:09:11,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2023-11-29 01:09:11,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1835. [2023-11-29 01:09:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1719 states have (on average 1.3787085514834205) internal successors, (2370), 1727 states have internal predecessors, (2370), 78 states have call successors, (78), 37 states have call predecessors, (78), 37 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2526 transitions. [2023-11-29 01:09:11,166 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2526 transitions. Word has length 108 [2023-11-29 01:09:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:11,166 INFO L495 AbstractCegarLoop]: Abstraction has 1835 states and 2526 transitions. [2023-11-29 01:09:11,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2526 transitions. [2023-11-29 01:09:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:11,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:11,168 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:11,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-11-29 01:09:11,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:11,369 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:11,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:11,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1807123477, now seen corresponding path program 1 times [2023-11-29 01:09:11,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:11,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562727362] [2023-11-29 01:09:11,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:11,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:11,371 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:11,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-11-29 01:09:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:11,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:09:11,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 2 proven. 114 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:09:12,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:12,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:12,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562727362] [2023-11-29 01:09:12,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562727362] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:12,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:12,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-11-29 01:09:12,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243563948] [2023-11-29 01:09:12,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:12,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:12,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:09:12,258 INFO L87 Difference]: Start difference. First operand 1835 states and 2526 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:12,498 INFO L93 Difference]: Finished difference Result 3245 states and 4455 transitions. [2023-11-29 01:09:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:09:12,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:12,502 INFO L225 Difference]: With dead ends: 3245 [2023-11-29 01:09:12,502 INFO L226 Difference]: Without dead ends: 1883 [2023-11-29 01:09:12,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:09:12,504 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 111 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:12,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 575 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:09:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2023-11-29 01:09:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1844. [2023-11-29 01:09:12,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1725 states have (on average 1.3721739130434782) internal successors, (2367), 1733 states have internal predecessors, (2367), 78 states have call successors, (78), 40 states have call predecessors, (78), 40 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:12,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2523 transitions. [2023-11-29 01:09:12,625 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2523 transitions. Word has length 108 [2023-11-29 01:09:12,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:12,625 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2523 transitions. [2023-11-29 01:09:12,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:12,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2523 transitions. [2023-11-29 01:09:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:12,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:12,627 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:12,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-11-29 01:09:12,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:12,828 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:12,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:12,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1378736768, now seen corresponding path program 1 times [2023-11-29 01:09:12,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:12,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560806172] [2023-11-29 01:09:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:12,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:12,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:12,830 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:12,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-11-29 01:09:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:13,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:09:13,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 01:09:13,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:13,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:13,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560806172] [2023-11-29 01:09:13,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560806172] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:13,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:13,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2023-11-29 01:09:13,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992860238] [2023-11-29 01:09:13,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:13,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:13,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:13,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:09:13,672 INFO L87 Difference]: Start difference. First operand 1844 states and 2523 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:14,090 INFO L93 Difference]: Finished difference Result 3377 states and 4610 transitions. [2023-11-29 01:09:14,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:09:14,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:14,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:14,094 INFO L225 Difference]: With dead ends: 3377 [2023-11-29 01:09:14,094 INFO L226 Difference]: Without dead ends: 2006 [2023-11-29 01:09:14,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:09:14,096 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 137 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:14,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 478 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:09:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2023-11-29 01:09:14,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1844. [2023-11-29 01:09:14,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1725 states have (on average 1.3704347826086956) internal successors, (2364), 1733 states have internal predecessors, (2364), 78 states have call successors, (78), 40 states have call predecessors, (78), 40 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:14,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2520 transitions. [2023-11-29 01:09:14,207 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2520 transitions. Word has length 108 [2023-11-29 01:09:14,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:14,207 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 2520 transitions. [2023-11-29 01:09:14,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:14,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2520 transitions. [2023-11-29 01:09:14,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:14,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:14,209 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:14,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-11-29 01:09:14,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:14,410 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:14,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1746151260, now seen corresponding path program 1 times [2023-11-29 01:09:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:14,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598515624] [2023-11-29 01:09:14,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:14,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:14,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:14,411 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:14,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-11-29 01:09:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:14,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:09:14,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:16,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:16,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:16,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598515624] [2023-11-29 01:09:16,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598515624] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:16,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:16,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:09:16,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577433604] [2023-11-29 01:09:16,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:16,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:16,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:16,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:16,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:09:16,321 INFO L87 Difference]: Start difference. First operand 1844 states and 2520 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:17,050 INFO L93 Difference]: Finished difference Result 3593 states and 4855 transitions. [2023-11-29 01:09:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:09:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:17,055 INFO L225 Difference]: With dead ends: 3593 [2023-11-29 01:09:17,055 INFO L226 Difference]: Without dead ends: 2144 [2023-11-29 01:09:17,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:09:17,057 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 92 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:17,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 429 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:09:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2023-11-29 01:09:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 1625. [2023-11-29 01:09:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1506 states have (on average 1.3598937583001327) internal successors, (2048), 1514 states have internal predecessors, (2048), 78 states have call successors, (78), 40 states have call predecessors, (78), 40 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:17,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2204 transitions. [2023-11-29 01:09:17,167 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2204 transitions. Word has length 108 [2023-11-29 01:09:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:17,167 INFO L495 AbstractCegarLoop]: Abstraction has 1625 states and 2204 transitions. [2023-11-29 01:09:17,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2204 transitions. [2023-11-29 01:09:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:17,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:17,169 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:17,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-11-29 01:09:17,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:17,369 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:17,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:17,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1212575640, now seen corresponding path program 1 times [2023-11-29 01:09:17,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:17,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877276820] [2023-11-29 01:09:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:17,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:17,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:17,372 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:17,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-11-29 01:09:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:17,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:09:17,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:19,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2023-11-29 01:09:19,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-11-29 01:09:19,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-29 01:09:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:19,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:19,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:19,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877276820] [2023-11-29 01:09:19,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877276820] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:19,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:19,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:09:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702390763] [2023-11-29 01:09:19,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:19,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:19,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:09:19,535 INFO L87 Difference]: Start difference. First operand 1625 states and 2204 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:20,263 INFO L93 Difference]: Finished difference Result 3762 states and 5051 transitions. [2023-11-29 01:09:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:09:20,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:20,269 INFO L225 Difference]: With dead ends: 3762 [2023-11-29 01:09:20,269 INFO L226 Difference]: Without dead ends: 2520 [2023-11-29 01:09:20,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:09:20,271 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 176 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:20,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 524 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:09:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2023-11-29 01:09:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 1685. [2023-11-29 01:09:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1566 states have (on average 1.3537675606641124) internal successors, (2120), 1574 states have internal predecessors, (2120), 78 states have call successors, (78), 40 states have call predecessors, (78), 40 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2276 transitions. [2023-11-29 01:09:20,411 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2276 transitions. Word has length 108 [2023-11-29 01:09:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:20,412 INFO L495 AbstractCegarLoop]: Abstraction has 1685 states and 2276 transitions. [2023-11-29 01:09:20,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2276 transitions. [2023-11-29 01:09:20,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:20,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:20,414 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:20,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-11-29 01:09:20,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:20,614 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:20,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1018615012, now seen corresponding path program 1 times [2023-11-29 01:09:20,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241426194] [2023-11-29 01:09:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:20,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:20,617 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:20,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-11-29 01:09:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:20,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 01:09:20,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:22,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-11-29 01:09:22,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 01:09:22,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 68 [2023-11-29 01:09:22,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 52 [2023-11-29 01:09:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:23,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:24,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:24,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241426194] [2023-11-29 01:09:24,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241426194] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:24,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:24,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [23] total 31 [2023-11-29 01:09:24,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604188428] [2023-11-29 01:09:24,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:24,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:09:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:24,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:09:24,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2023-11-29 01:09:24,063 INFO L87 Difference]: Start difference. First operand 1685 states and 2276 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:25,671 INFO L93 Difference]: Finished difference Result 3784 states and 5087 transitions. [2023-11-29 01:09:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:09:25,673 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:25,679 INFO L225 Difference]: With dead ends: 3784 [2023-11-29 01:09:25,679 INFO L226 Difference]: Without dead ends: 2516 [2023-11-29 01:09:25,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 01:09:25,683 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 267 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:25,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1442 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:09:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2023-11-29 01:09:25,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 1865. [2023-11-29 01:09:25,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1746 states have (on average 1.3562428407789233) internal successors, (2368), 1754 states have internal predecessors, (2368), 78 states have call successors, (78), 40 states have call predecessors, (78), 40 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 2524 transitions. [2023-11-29 01:09:25,813 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 2524 transitions. Word has length 108 [2023-11-29 01:09:25,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:25,813 INFO L495 AbstractCegarLoop]: Abstraction has 1865 states and 2524 transitions. [2023-11-29 01:09:25,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2524 transitions. [2023-11-29 01:09:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:25,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:25,815 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:25,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-11-29 01:09:26,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:26,016 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:26,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:26,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1159163622, now seen corresponding path program 1 times [2023-11-29 01:09:26,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:26,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918221064] [2023-11-29 01:09:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:26,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:26,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:26,018 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:26,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-11-29 01:09:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:26,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:09:26,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:26,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-11-29 01:09:26,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 01:09:26,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-11-29 01:09:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 01:09:26,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:26,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:26,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918221064] [2023-11-29 01:09:26,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918221064] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:26,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:26,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-29 01:09:26,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973824410] [2023-11-29 01:09:26,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:26,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:26,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:26,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:26,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:09:26,970 INFO L87 Difference]: Start difference. First operand 1865 states and 2524 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:27,593 INFO L93 Difference]: Finished difference Result 3359 states and 4511 transitions. [2023-11-29 01:09:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:09:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 108 [2023-11-29 01:09:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:27,599 INFO L225 Difference]: With dead ends: 3359 [2023-11-29 01:09:27,599 INFO L226 Difference]: Without dead ends: 1911 [2023-11-29 01:09:27,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:09:27,602 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 87 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:27,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 538 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:09:27,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2023-11-29 01:09:27,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1673. [2023-11-29 01:09:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1554 states have (on average 1.351994851994852) internal successors, (2101), 1562 states have internal predecessors, (2101), 78 states have call successors, (78), 40 states have call predecessors, (78), 40 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2257 transitions. [2023-11-29 01:09:27,731 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2257 transitions. Word has length 108 [2023-11-29 01:09:27,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:27,731 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2257 transitions. [2023-11-29 01:09:27,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2257 transitions. [2023-11-29 01:09:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:09:27,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:27,733 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:27,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-11-29 01:09:27,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:27,934 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:27,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1164301209, now seen corresponding path program 1 times [2023-11-29 01:09:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464964580] [2023-11-29 01:09:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:27,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:27,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:27,936 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:27,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-11-29 01:09:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:28,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:09:28,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:29,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:09:29,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:09:29,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 78 [2023-11-29 01:09:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 83 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:09:29,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:29,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464964580] [2023-11-29 01:09:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464964580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [522899573] [2023-11-29 01:09:29,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:29,952 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:09:29,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:09:29,953 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:09:29,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-11-29 01:09:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:31,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 01:09:31,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:32,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:09:33,902 INFO L349 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2023-11-29 01:09:33,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 01:09:34,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:09:34,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 78 [2023-11-29 01:09:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 83 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:09:34,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:34,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [522899573] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:34,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:09:34,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2023-11-29 01:09:34,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472520754] [2023-11-29 01:09:34,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:09:34,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 01:09:34,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:34,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 01:09:34,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:09:34,518 INFO L87 Difference]: Start difference. First operand 1673 states and 2257 transitions. Second operand has 23 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 01:09:41,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:41,864 INFO L93 Difference]: Finished difference Result 2197 states and 2875 transitions. [2023-11-29 01:09:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 01:09:41,866 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 108 [2023-11-29 01:09:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:41,868 INFO L225 Difference]: With dead ends: 2197 [2023-11-29 01:09:41,868 INFO L226 Difference]: Without dead ends: 2195 [2023-11-29 01:09:41,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 243 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=590, Invalid=3316, Unknown=0, NotChecked=0, Total=3906 [2023-11-29 01:09:41,871 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 717 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:41,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2283 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 01:09:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2023-11-29 01:09:42,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1608. [2023-11-29 01:09:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1487 states have (on average 1.351714862138534) internal successors, (2010), 1495 states have internal predecessors, (2010), 78 states have call successors, (78), 42 states have call predecessors, (78), 42 states have return successors, (78), 70 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-29 01:09:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2166 transitions. [2023-11-29 01:09:42,034 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2166 transitions. Word has length 108 [2023-11-29 01:09:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:42,035 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2166 transitions. [2023-11-29 01:09:42,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.238095238095238) internal successors, (110), 20 states have internal predecessors, (110), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 01:09:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2166 transitions. [2023-11-29 01:09:42,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:09:42,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:42,036 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:42,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-11-29 01:09:42,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2023-11-29 01:09:42,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:09:42,437 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:42,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1931696472, now seen corresponding path program 1 times [2023-11-29 01:09:42,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525515951] [2023-11-29 01:09:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:42,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:42,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:42,439 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:42,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-11-29 01:09:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:42,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:09:42,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:43,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 01:09:43,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-11-29 01:09:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:43,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:44,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:44,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525515951] [2023-11-29 01:09:44,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525515951] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:44,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:09:44,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 19 [2023-11-29 01:09:44,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239109204] [2023-11-29 01:09:44,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:44,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:09:44,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:44,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:09:44,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:09:44,123 INFO L87 Difference]: Start difference. First operand 1608 states and 2166 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:44,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:44,507 INFO L93 Difference]: Finished difference Result 2815 states and 3779 transitions. [2023-11-29 01:09:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:09:44,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 109 [2023-11-29 01:09:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:44,509 INFO L225 Difference]: With dead ends: 2815 [2023-11-29 01:09:44,509 INFO L226 Difference]: Without dead ends: 1652 [2023-11-29 01:09:44,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:09:44,511 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 55 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:44,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 482 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:09:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2023-11-29 01:09:44,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1305. [2023-11-29 01:09:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 1229 states have (on average 1.3742880390561432) internal successors, (1689), 1231 states have internal predecessors, (1689), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 01:09:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1785 transitions. [2023-11-29 01:09:44,615 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1785 transitions. Word has length 109 [2023-11-29 01:09:44,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:44,616 INFO L495 AbstractCegarLoop]: Abstraction has 1305 states and 1785 transitions. [2023-11-29 01:09:44,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1785 transitions. [2023-11-29 01:09:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 01:09:44,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:44,618 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:44,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-11-29 01:09:44,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:44,819 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:44,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:44,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1082873341, now seen corresponding path program 1 times [2023-11-29 01:09:44,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:44,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751416844] [2023-11-29 01:09:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:44,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:44,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:44,821 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:44,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-11-29 01:09:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:45,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:09:45,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:45,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 01:09:45,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2023-11-29 01:09:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:09:45,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:09:45,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:45,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751416844] [2023-11-29 01:09:45,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751416844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:09:45,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:09:45,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:09:45,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414083825] [2023-11-29 01:09:45,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:09:45,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:09:45,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:09:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:09:45,228 INFO L87 Difference]: Start difference. First operand 1305 states and 1785 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:09:45,624 INFO L93 Difference]: Finished difference Result 3122 states and 4267 transitions. [2023-11-29 01:09:45,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:09:45,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 111 [2023-11-29 01:09:45,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:09:45,628 INFO L225 Difference]: With dead ends: 3122 [2023-11-29 01:09:45,628 INFO L226 Difference]: Without dead ends: 2226 [2023-11-29 01:09:45,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:09:45,631 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 201 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:09:45,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1234 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:09:45,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2023-11-29 01:09:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1808. [2023-11-29 01:09:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1732 states have (on average 1.3672055427251733) internal successors, (2368), 1734 states have internal predecessors, (2368), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 01:09:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2464 transitions. [2023-11-29 01:09:45,774 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2464 transitions. Word has length 111 [2023-11-29 01:09:45,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:09:45,775 INFO L495 AbstractCegarLoop]: Abstraction has 1808 states and 2464 transitions. [2023-11-29 01:09:45,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:09:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2464 transitions. [2023-11-29 01:09:45,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 01:09:45,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:09:45,776 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:09:45,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2023-11-29 01:09:45,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:45,977 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:09:45,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:09:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1823505882, now seen corresponding path program 1 times [2023-11-29 01:09:45,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:09:45,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505750747] [2023-11-29 01:09:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:45,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:09:45,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:09:45,980 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:09:45,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-11-29 01:09:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:46,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:09:46,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:47,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2023-11-29 01:09:47,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:09:47,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:09:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:09:47,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:48,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2023-11-29 01:09:48,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:09:48,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505750747] [2023-11-29 01:09:48,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505750747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:48,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [541376729] [2023-11-29 01:09:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:09:48,301 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:09:48,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:09:48,302 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:09:48,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-11-29 01:09:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:09:49,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:09:49,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:09:49,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 01:09:50,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 01:09:52,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 01:09:52,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2023-11-29 01:09:53,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:09:53,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 01:09:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 188 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 01:09:53,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:09:54,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2023-11-29 01:09:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [541376729] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:09:54,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:09:54,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2023-11-29 01:09:54,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859534799] [2023-11-29 01:09:54,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:09:54,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 01:09:54,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:09:54,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 01:09:54,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 01:09:54,723 INFO L87 Difference]: Start difference. First operand 1808 states and 2464 transitions. Second operand has 31 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 11 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 7 states have call predecessors, (24), 11 states have call successors, (24) [2023-11-29 01:10:03,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:03,072 INFO L93 Difference]: Finished difference Result 3349 states and 4501 transitions. [2023-11-29 01:10:03,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 01:10:03,073 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 11 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 7 states have call predecessors, (24), 11 states have call successors, (24) Word has length 111 [2023-11-29 01:10:03,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:03,075 INFO L225 Difference]: With dead ends: 3349 [2023-11-29 01:10:03,075 INFO L226 Difference]: Without dead ends: 2086 [2023-11-29 01:10:03,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1964 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1553, Invalid=6279, Unknown=0, NotChecked=0, Total=7832 [2023-11-29 01:10:03,080 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 939 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:03,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1185 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 01:10:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-11-29 01:10:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1826. [2023-11-29 01:10:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1750 states have (on average 1.3651428571428572) internal successors, (2389), 1752 states have internal predecessors, (2389), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 01:10:03,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2485 transitions. [2023-11-29 01:10:03,192 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2485 transitions. Word has length 111 [2023-11-29 01:10:03,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:03,192 INFO L495 AbstractCegarLoop]: Abstraction has 1826 states and 2485 transitions. [2023-11-29 01:10:03,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 11 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 7 states have call predecessors, (24), 11 states have call successors, (24) [2023-11-29 01:10:03,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2485 transitions. [2023-11-29 01:10:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:03,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:03,194 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:03,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-11-29 01:10:03,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-11-29 01:10:03,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:03,595 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:03,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:03,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1834779595, now seen corresponding path program 1 times [2023-11-29 01:10:03,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:03,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196806355] [2023-11-29 01:10:03,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:03,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:03,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:03,597 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:03,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-11-29 01:10:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:03,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:10:03,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:04,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:10:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:10:04,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:04,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:04,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196806355] [2023-11-29 01:10:04,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196806355] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:04,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1184374388] [2023-11-29 01:10:04,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:04,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:04,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:10:04,380 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:10:04,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-11-29 01:10:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:05,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:10:05,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:05,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 44 [2023-11-29 01:10:05,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2023-11-29 01:10:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:05,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1184374388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:05,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:05,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-29 01:10:05,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756014268] [2023-11-29 01:10:05,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:05,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:10:05,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:10:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:10:05,370 INFO L87 Difference]: Start difference. First operand 1826 states and 2485 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:06,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:06,092 INFO L93 Difference]: Finished difference Result 4019 states and 5532 transitions. [2023-11-29 01:10:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:10:06,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:06,096 INFO L225 Difference]: With dead ends: 4019 [2023-11-29 01:10:06,096 INFO L226 Difference]: Without dead ends: 2602 [2023-11-29 01:10:06,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:10:06,098 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 70 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:06,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 722 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:10:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2023-11-29 01:10:06,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 1970. [2023-11-29 01:10:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1970 states, 1894 states have (on average 1.3753959873284054) internal successors, (2605), 1896 states have internal predecessors, (2605), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 01:10:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1970 states to 1970 states and 2701 transitions. [2023-11-29 01:10:06,216 INFO L78 Accepts]: Start accepts. Automaton has 1970 states and 2701 transitions. Word has length 113 [2023-11-29 01:10:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:06,216 INFO L495 AbstractCegarLoop]: Abstraction has 1970 states and 2701 transitions. [2023-11-29 01:10:06,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1970 states and 2701 transitions. [2023-11-29 01:10:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:06,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:06,219 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:06,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2023-11-29 01:10:06,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2023-11-29 01:10:06,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:06,620 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:06,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2053634313, now seen corresponding path program 1 times [2023-11-29 01:10:06,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:06,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74208658] [2023-11-29 01:10:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:06,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:06,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:06,622 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:06,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-11-29 01:10:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:06,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:10:06,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:07,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:10:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:10:07,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:07,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74208658] [2023-11-29 01:10:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74208658] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [266158038] [2023-11-29 01:10:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:10:07,381 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:10:07,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-11-29 01:10:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:08,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:10:08,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:08,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 01:10:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:08,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:08,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [266158038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:08,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:08,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-29 01:10:08,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882856974] [2023-11-29 01:10:08,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:08,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:10:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:08,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:10:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:10:08,348 INFO L87 Difference]: Start difference. First operand 1970 states and 2701 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:09,041 INFO L93 Difference]: Finished difference Result 4043 states and 5510 transitions. [2023-11-29 01:10:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:10:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:09,045 INFO L225 Difference]: With dead ends: 4043 [2023-11-29 01:10:09,045 INFO L226 Difference]: Without dead ends: 2682 [2023-11-29 01:10:09,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:10:09,048 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 118 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:09,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 780 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:10:09,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-11-29 01:10:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2502. [2023-11-29 01:10:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 2426 states have (on average 1.3639736191261336) internal successors, (3309), 2428 states have internal predecessors, (3309), 48 states have call successors, (48), 27 states have call predecessors, (48), 27 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 01:10:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3405 transitions. [2023-11-29 01:10:09,174 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3405 transitions. Word has length 113 [2023-11-29 01:10:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:09,174 INFO L495 AbstractCegarLoop]: Abstraction has 2502 states and 3405 transitions. [2023-11-29 01:10:09,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3405 transitions. [2023-11-29 01:10:09,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:09,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:09,178 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:09,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2023-11-29 01:10:09,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-11-29 01:10:09,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:09,579 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:09,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1660607303, now seen corresponding path program 1 times [2023-11-29 01:10:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900181648] [2023-11-29 01:10:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:09,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:09,581 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:09,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-11-29 01:10:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:09,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:10:09,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:10,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:10:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:10:10,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:10,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:10,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900181648] [2023-11-29 01:10:10,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900181648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:10,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [99760046] [2023-11-29 01:10:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:10,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:10,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:10:10,319 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:10:10,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-11-29 01:10:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:11,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:10:11,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:11,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:10:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:12,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:12,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [99760046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:12,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:12,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 01:10:12,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378410826] [2023-11-29 01:10:12,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:12,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:10:12,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:12,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:10:12,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:10:12,767 INFO L87 Difference]: Start difference. First operand 2502 states and 3405 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:16,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:17,212 INFO L93 Difference]: Finished difference Result 5190 states and 7019 transitions. [2023-11-29 01:10:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:10:17,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:17,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:17,216 INFO L225 Difference]: With dead ends: 5190 [2023-11-29 01:10:17,216 INFO L226 Difference]: Without dead ends: 3449 [2023-11-29 01:10:17,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:10:17,219 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 175 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:17,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 590 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 01:10:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2023-11-29 01:10:17,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 3318. [2023-11-29 01:10:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3318 states, 3189 states have (on average 1.3471307619943556) internal successors, (4296), 3193 states have internal predecessors, (4296), 82 states have call successors, (82), 46 states have call predecessors, (82), 46 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 01:10:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3318 states to 3318 states and 4460 transitions. [2023-11-29 01:10:17,411 INFO L78 Accepts]: Start accepts. Automaton has 3318 states and 4460 transitions. Word has length 113 [2023-11-29 01:10:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:17,411 INFO L495 AbstractCegarLoop]: Abstraction has 3318 states and 4460 transitions. [2023-11-29 01:10:17,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:17,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3318 states and 4460 transitions. [2023-11-29 01:10:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:17,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:17,414 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:17,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-11-29 01:10:17,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2023-11-29 01:10:17,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:17,815 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:17,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1896819209, now seen corresponding path program 1 times [2023-11-29 01:10:17,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:17,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220984688] [2023-11-29 01:10:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:17,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:17,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:17,818 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:17,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-11-29 01:10:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:18,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:10:18,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:18,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:10:18,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 01:10:18,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:10:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:18,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:18,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:18,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220984688] [2023-11-29 01:10:18,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220984688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:18,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:18,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:10:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909808009] [2023-11-29 01:10:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:18,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:10:18,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:10:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:10:18,235 INFO L87 Difference]: Start difference. First operand 3318 states and 4460 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:22,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:23,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:23,053 INFO L93 Difference]: Finished difference Result 6575 states and 8759 transitions. [2023-11-29 01:10:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:10:23,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:23,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:23,059 INFO L225 Difference]: With dead ends: 6575 [2023-11-29 01:10:23,059 INFO L226 Difference]: Without dead ends: 4062 [2023-11-29 01:10:23,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:10:23,063 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 159 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:23,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 599 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 01:10:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2023-11-29 01:10:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 3119. [2023-11-29 01:10:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 2990 states have (on average 1.3381270903010034) internal successors, (4001), 2994 states have internal predecessors, (4001), 82 states have call successors, (82), 46 states have call predecessors, (82), 46 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 01:10:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4165 transitions. [2023-11-29 01:10:23,285 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4165 transitions. Word has length 113 [2023-11-29 01:10:23,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:23,285 INFO L495 AbstractCegarLoop]: Abstraction has 3119 states and 4165 transitions. [2023-11-29 01:10:23,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4165 transitions. [2023-11-29 01:10:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:23,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:23,288 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:23,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2023-11-29 01:10:23,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:23,488 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:23,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:23,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1547115137, now seen corresponding path program 1 times [2023-11-29 01:10:23,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:23,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538857575] [2023-11-29 01:10:23,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:23,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:23,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:23,491 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:23,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-11-29 01:10:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:23,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:10:23,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:23,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:10:24,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2023-11-29 01:10:24,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-29 01:10:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:24,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:10:24,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:24,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538857575] [2023-11-29 01:10:24,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538857575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:10:24,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:10:24,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:10:24,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840171583] [2023-11-29 01:10:24,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:24,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:10:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:24,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:10:24,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:10:24,539 INFO L87 Difference]: Start difference. First operand 3119 states and 4165 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:26,649 INFO L93 Difference]: Finished difference Result 4363 states and 5667 transitions. [2023-11-29 01:10:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:10:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:26,654 INFO L225 Difference]: With dead ends: 4363 [2023-11-29 01:10:26,654 INFO L226 Difference]: Without dead ends: 4361 [2023-11-29 01:10:26,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:10:26,655 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 111 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:26,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1683 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:10:26,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2023-11-29 01:10:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 3622. [2023-11-29 01:10:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3493 states have (on average 1.3232178643000285) internal successors, (4622), 3497 states have internal predecessors, (4622), 82 states have call successors, (82), 46 states have call predecessors, (82), 46 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 01:10:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 4786 transitions. [2023-11-29 01:10:26,872 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 4786 transitions. Word has length 113 [2023-11-29 01:10:26,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:26,872 INFO L495 AbstractCegarLoop]: Abstraction has 3622 states and 4786 transitions. [2023-11-29 01:10:26,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:26,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 4786 transitions. [2023-11-29 01:10:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:26,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:26,875 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:26,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2023-11-29 01:10:27,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:27,076 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:27,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 227892225, now seen corresponding path program 1 times [2023-11-29 01:10:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:27,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690944810] [2023-11-29 01:10:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:27,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:27,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:27,078 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:27,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2023-11-29 01:10:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:27,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:10:27,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:30,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 49 [2023-11-29 01:10:30,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2023-11-29 01:10:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:10:30,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:31,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:31,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690944810] [2023-11-29 01:10:31,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690944810] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:31,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:31,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2023-11-29 01:10:31,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803804534] [2023-11-29 01:10:31,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:31,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:10:31,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:10:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:10:31,026 INFO L87 Difference]: Start difference. First operand 3622 states and 4786 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:31,744 INFO L93 Difference]: Finished difference Result 6477 states and 8551 transitions. [2023-11-29 01:10:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:10:31,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:31,750 INFO L225 Difference]: With dead ends: 6477 [2023-11-29 01:10:31,750 INFO L226 Difference]: Without dead ends: 3756 [2023-11-29 01:10:31,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:10:31,754 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 124 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:31,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 497 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:10:31,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2023-11-29 01:10:31,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 3622. [2023-11-29 01:10:31,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3622 states, 3493 states have (on average 1.3226452905811623) internal successors, (4620), 3497 states have internal predecessors, (4620), 82 states have call successors, (82), 46 states have call predecessors, (82), 46 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-29 01:10:31,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3622 states to 3622 states and 4784 transitions. [2023-11-29 01:10:31,969 INFO L78 Accepts]: Start accepts. Automaton has 3622 states and 4784 transitions. Word has length 113 [2023-11-29 01:10:31,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:31,969 INFO L495 AbstractCegarLoop]: Abstraction has 3622 states and 4784 transitions. [2023-11-29 01:10:31,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3622 states and 4784 transitions. [2023-11-29 01:10:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:31,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:31,972 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:31,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Ended with exit code 0 [2023-11-29 01:10:32,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:32,173 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:32,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:32,173 INFO L85 PathProgramCache]: Analyzing trace with hash 942413825, now seen corresponding path program 1 times [2023-11-29 01:10:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:32,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797310111] [2023-11-29 01:10:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:32,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:32,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:32,175 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:32,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2023-11-29 01:10:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:32,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:10:32,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:35,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 50 [2023-11-29 01:10:35,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 50 [2023-11-29 01:10:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:10:35,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:10:36,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:36,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797310111] [2023-11-29 01:10:36,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797310111] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:36,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:10:36,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2023-11-29 01:10:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312172437] [2023-11-29 01:10:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:10:36,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:10:36,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:36,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:10:36,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:10:36,138 INFO L87 Difference]: Start difference. First operand 3622 states and 4784 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:36,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:10:36,839 INFO L93 Difference]: Finished difference Result 6387 states and 8442 transitions. [2023-11-29 01:10:36,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:10:36,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2023-11-29 01:10:36,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:10:36,844 INFO L225 Difference]: With dead ends: 6387 [2023-11-29 01:10:36,845 INFO L226 Difference]: Without dead ends: 3666 [2023-11-29 01:10:36,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:10:36,849 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:10:36,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 440 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:10:36,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2023-11-29 01:10:37,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 2417. [2023-11-29 01:10:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2347 states have (on average 1.3012356199403494) internal successors, (3054), 2350 states have internal predecessors, (3054), 42 states have call successors, (42), 27 states have call predecessors, (42), 27 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:10:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 3138 transitions. [2023-11-29 01:10:37,009 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 3138 transitions. Word has length 113 [2023-11-29 01:10:37,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:10:37,009 INFO L495 AbstractCegarLoop]: Abstraction has 2417 states and 3138 transitions. [2023-11-29 01:10:37,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:10:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 3138 transitions. [2023-11-29 01:10:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:10:37,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:10:37,012 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:10:37,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2023-11-29 01:10:37,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:37,212 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:10:37,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:10:37,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1577546109, now seen corresponding path program 1 times [2023-11-29 01:10:37,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:10:37,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418870908] [2023-11-29 01:10:37,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:37,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:10:37,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:10:37,215 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:10:37,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2023-11-29 01:10:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:37,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:10:37,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:38,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:10:38,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2023-11-29 01:10:38,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 49 [2023-11-29 01:10:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 01:10:39,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:39,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:10:39,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418870908] [2023-11-29 01:10:39,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418870908] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:39,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1504636866] [2023-11-29 01:10:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:10:39,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:10:39,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:10:39,721 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:10:39,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-11-29 01:10:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:10:41,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 01:10:41,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:10:43,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:10:45,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:10:47,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 34 [2023-11-29 01:10:48,073 INFO L349 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2023-11-29 01:10:48,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 01:10:48,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2023-11-29 01:10:49,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 53 [2023-11-29 01:10:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:10:49,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:10:49,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1504636866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:10:49,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:10:49,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 27 [2023-11-29 01:10:49,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514945033] [2023-11-29 01:10:49,948 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:10:49,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 01:10:49,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:10:49,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 01:10:49,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1195, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 01:10:49,950 INFO L87 Difference]: Start difference. First operand 2417 states and 3138 transitions. Second operand has 28 states, 28 states have (on average 4.107142857142857) internal successors, (115), 27 states have internal predecessors, (115), 5 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 01:10:59,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:03,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:07,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:12,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:17,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:21,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:29,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:35,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:35,172 INFO L93 Difference]: Finished difference Result 5842 states and 7575 transitions. [2023-11-29 01:11:35,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 01:11:35,173 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.107142857142857) internal successors, (115), 27 states have internal predecessors, (115), 5 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 113 [2023-11-29 01:11:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:35,177 INFO L225 Difference]: With dead ends: 5842 [2023-11-29 01:11:35,177 INFO L226 Difference]: Without dead ends: 5840 [2023-11-29 01:11:35,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 256 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=661, Invalid=4889, Unknown=0, NotChecked=0, Total=5550 [2023-11-29 01:11:35,181 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 754 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 135 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:35,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 3767 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2089 Invalid, 7 Unknown, 0 Unchecked, 36.2s Time] [2023-11-29 01:11:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5840 states. [2023-11-29 01:11:35,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5840 to 4858. [2023-11-29 01:11:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4708 states have (on average 1.298428207306712) internal successors, (6113), 4717 states have internal predecessors, (6113), 91 states have call successors, (91), 58 states have call predecessors, (91), 58 states have return successors, (91), 82 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:11:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 6295 transitions. [2023-11-29 01:11:35,487 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 6295 transitions. Word has length 113 [2023-11-29 01:11:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:35,488 INFO L495 AbstractCegarLoop]: Abstraction has 4858 states and 6295 transitions. [2023-11-29 01:11:35,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.107142857142857) internal successors, (115), 27 states have internal predecessors, (115), 5 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-29 01:11:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 6295 transitions. [2023-11-29 01:11:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:11:35,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:35,492 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:35,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-11-29 01:11:35,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2023-11-29 01:11:35,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:35,892 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:35,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:35,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1329399615, now seen corresponding path program 1 times [2023-11-29 01:11:35,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:11:35,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255419585] [2023-11-29 01:11:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:35,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:35,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:11:35,895 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:11:35,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2023-11-29 01:11:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:36,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:11:36,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 01:11:36,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:11:36,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:11:36,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255419585] [2023-11-29 01:11:36,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255419585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:36,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:11:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:11:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583992408] [2023-11-29 01:11:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:36,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:11:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:11:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:11:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:11:36,226 INFO L87 Difference]: Start difference. First operand 4858 states and 6295 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:11:36,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:36,567 INFO L93 Difference]: Finished difference Result 9156 states and 11903 transitions. [2023-11-29 01:11:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:11:36,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-11-29 01:11:36,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:36,571 INFO L225 Difference]: With dead ends: 9156 [2023-11-29 01:11:36,572 INFO L226 Difference]: Without dead ends: 4879 [2023-11-29 01:11:36,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:11:36,576 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 7 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:36,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 388 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:11:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2023-11-29 01:11:36,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4858. [2023-11-29 01:11:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4708 states have (on average 1.2971537807986406) internal successors, (6107), 4717 states have internal predecessors, (6107), 91 states have call successors, (91), 58 states have call predecessors, (91), 58 states have return successors, (91), 82 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:11:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 6289 transitions. [2023-11-29 01:11:36,904 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 6289 transitions. Word has length 113 [2023-11-29 01:11:36,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:36,905 INFO L495 AbstractCegarLoop]: Abstraction has 4858 states and 6289 transitions. [2023-11-29 01:11:36,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:11:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 6289 transitions. [2023-11-29 01:11:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 01:11:36,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:36,908 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:36,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2023-11-29 01:11:37,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:37,109 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:37,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:37,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1957190004, now seen corresponding path program 1 times [2023-11-29 01:11:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:11:37,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126679539] [2023-11-29 01:11:37,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:37,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:37,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:11:37,111 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:11:37,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2023-11-29 01:11:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:37,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:11:37,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:38,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:11:38,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-29 01:11:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:11:38,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:11:39,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:11:39,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126679539] [2023-11-29 01:11:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126679539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:11:39,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1770685678] [2023-11-29 01:11:39,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:39,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:39,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:11:39,353 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:11:39,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-11-29 01:11:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:40,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:11:40,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:40,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-11-29 01:11:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:11:41,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:11:41,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1770685678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:41,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:11:41,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 22 [2023-11-29 01:11:41,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777556521] [2023-11-29 01:11:41,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:41,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:11:41,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:11:41,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:11:41,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:11:41,681 INFO L87 Difference]: Start difference. First operand 4858 states and 6289 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:11:42,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:42,652 INFO L93 Difference]: Finished difference Result 8766 states and 11389 transitions. [2023-11-29 01:11:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:11:42,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2023-11-29 01:11:42,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:42,656 INFO L225 Difference]: With dead ends: 8766 [2023-11-29 01:11:42,657 INFO L226 Difference]: Without dead ends: 5002 [2023-11-29 01:11:42,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 237 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:11:42,661 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 73 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:42,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 825 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:11:42,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5002 states. [2023-11-29 01:11:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5002 to 4858. [2023-11-29 01:11:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4708 states have (on average 1.2954545454545454) internal successors, (6099), 4717 states have internal predecessors, (6099), 91 states have call successors, (91), 58 states have call predecessors, (91), 58 states have return successors, (91), 82 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:11:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 6281 transitions. [2023-11-29 01:11:42,978 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 6281 transitions. Word has length 114 [2023-11-29 01:11:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:42,978 INFO L495 AbstractCegarLoop]: Abstraction has 4858 states and 6281 transitions. [2023-11-29 01:11:42,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:11:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 6281 transitions. [2023-11-29 01:11:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 01:11:42,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:42,982 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:42,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2023-11-29 01:11:43,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-11-29 01:11:43,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:43,383 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:43,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash -304162719, now seen corresponding path program 1 times [2023-11-29 01:11:43,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:11:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197238540] [2023-11-29 01:11:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:43,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:11:43,385 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:11:43,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2023-11-29 01:11:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:43,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:11:43,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:44,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 01:11:44,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:11:44,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-29 01:11:44,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 01:11:45,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:11:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:11:45,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:11:45,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-29 01:11:45,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:11:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197238540] [2023-11-29 01:11:45,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197238540] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:11:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1853575460] [2023-11-29 01:11:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:45,748 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:45,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:11:45,749 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:11:45,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-11-29 01:11:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:46,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:11:46,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:46,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-29 01:11:46,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:11:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:11:47,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:11:47,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1853575460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:11:47,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2023-11-29 01:11:47,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097577075] [2023-11-29 01:11:47,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:47,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:11:47,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:11:47,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:11:47,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:11:47,096 INFO L87 Difference]: Start difference. First operand 4858 states and 6281 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:11:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:48,435 INFO L93 Difference]: Finished difference Result 8752 states and 11265 transitions. [2023-11-29 01:11:48,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:11:48,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2023-11-29 01:11:48,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:48,439 INFO L225 Difference]: With dead ends: 8752 [2023-11-29 01:11:48,440 INFO L226 Difference]: Without dead ends: 4756 [2023-11-29 01:11:48,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2023-11-29 01:11:48,444 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 80 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:48,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 690 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:11:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2023-11-29 01:11:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 4286. [2023-11-29 01:11:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4286 states, 4136 states have (on average 1.2840909090909092) internal successors, (5311), 4145 states have internal predecessors, (5311), 91 states have call successors, (91), 58 states have call predecessors, (91), 58 states have return successors, (91), 82 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:11:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 5493 transitions. [2023-11-29 01:11:48,743 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 5493 transitions. Word has length 114 [2023-11-29 01:11:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:48,743 INFO L495 AbstractCegarLoop]: Abstraction has 4286 states and 5493 transitions. [2023-11-29 01:11:48,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:11:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 5493 transitions. [2023-11-29 01:11:48,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 01:11:48,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:48,746 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:48,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2023-11-29 01:11:48,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-11-29 01:11:49,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:49,147 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:49,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:49,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1169944434, now seen corresponding path program 1 times [2023-11-29 01:11:49,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:11:49,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391012106] [2023-11-29 01:11:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:49,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:49,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:11:49,149 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:11:49,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2023-11-29 01:11:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:49,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:11:49,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:50,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 01:11:50,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:11:50,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-29 01:11:50,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 01:11:50,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:11:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:11:50,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:11:51,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-29 01:11:51,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:11:51,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391012106] [2023-11-29 01:11:51,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391012106] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:11:51,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [972542580] [2023-11-29 01:11:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:51,476 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:11:51,477 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:11:51,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-11-29 01:11:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:52,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:11:52,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:52,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 01:11:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:11:52,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:11:52,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [972542580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:52,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:11:52,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 01:11:52,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49467913] [2023-11-29 01:11:52,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:52,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:11:52,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:11:52,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:11:52,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:11:52,380 INFO L87 Difference]: Start difference. First operand 4286 states and 5493 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:11:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:11:53,062 INFO L93 Difference]: Finished difference Result 8152 states and 10461 transitions. [2023-11-29 01:11:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:11:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2023-11-29 01:11:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:11:53,066 INFO L225 Difference]: With dead ends: 8152 [2023-11-29 01:11:53,066 INFO L226 Difference]: Without dead ends: 4728 [2023-11-29 01:11:53,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2023-11-29 01:11:53,069 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 155 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:11:53,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 779 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:11:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4728 states. [2023-11-29 01:11:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4728 to 4665. [2023-11-29 01:11:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4665 states, 4453 states have (on average 1.2732988996182348) internal successors, (5670), 4466 states have internal predecessors, (5670), 129 states have call successors, (129), 82 states have call predecessors, (129), 82 states have return successors, (129), 116 states have call predecessors, (129), 129 states have call successors, (129) [2023-11-29 01:11:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4665 states to 4665 states and 5928 transitions. [2023-11-29 01:11:53,511 INFO L78 Accepts]: Start accepts. Automaton has 4665 states and 5928 transitions. Word has length 115 [2023-11-29 01:11:53,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:11:53,511 INFO L495 AbstractCegarLoop]: Abstraction has 4665 states and 5928 transitions. [2023-11-29 01:11:53,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:11:53,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4665 states and 5928 transitions. [2023-11-29 01:11:53,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 01:11:53,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:11:53,514 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:11:53,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2023-11-29 01:11:53,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-11-29 01:11:53,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:53,915 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:11:53,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:11:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1756750448, now seen corresponding path program 1 times [2023-11-29 01:11:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:11:53,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003041752] [2023-11-29 01:11:53,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:53,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:11:53,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:11:53,917 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:11:53,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2023-11-29 01:11:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:54,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:11:54,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:55,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 01:11:55,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:11:55,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-29 01:11:55,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 01:11:55,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:11:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 8 proven. 188 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-29 01:11:56,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:11:57,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-11-29 01:11:57,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:11:57,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003041752] [2023-11-29 01:11:57,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003041752] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:11:57,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [265350666] [2023-11-29 01:11:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:11:57,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:11:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:11:57,323 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:11:57,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-11-29 01:11:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:11:57,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:11:57,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:11:58,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 01:11:58,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-29 01:11:58,657 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:11:58,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:11:58,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [265350666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:11:58,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:11:58,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2023-11-29 01:11:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640397059] [2023-11-29 01:11:58,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:11:58,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:11:58,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:11:58,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:11:58,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2023-11-29 01:11:58,658 INFO L87 Difference]: Start difference. First operand 4665 states and 5928 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:03,480 INFO L93 Difference]: Finished difference Result 8612 states and 10971 transitions. [2023-11-29 01:12:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:12:03,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2023-11-29 01:12:03,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:03,485 INFO L225 Difference]: With dead ends: 8612 [2023-11-29 01:12:03,485 INFO L226 Difference]: Without dead ends: 4809 [2023-11-29 01:12:03,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2023-11-29 01:12:03,489 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 89 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:03,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 854 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:12:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4809 states. [2023-11-29 01:12:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4809 to 4665. [2023-11-29 01:12:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4665 states, 4453 states have (on average 1.2715023579609253) internal successors, (5662), 4466 states have internal predecessors, (5662), 129 states have call successors, (129), 82 states have call predecessors, (129), 82 states have return successors, (129), 116 states have call predecessors, (129), 129 states have call successors, (129) [2023-11-29 01:12:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4665 states to 4665 states and 5920 transitions. [2023-11-29 01:12:03,876 INFO L78 Accepts]: Start accepts. Automaton has 4665 states and 5920 transitions. Word has length 115 [2023-11-29 01:12:03,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:03,876 INFO L495 AbstractCegarLoop]: Abstraction has 4665 states and 5920 transitions. [2023-11-29 01:12:03,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4665 states and 5920 transitions. [2023-11-29 01:12:03,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 01:12:03,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:03,880 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:03,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2023-11-29 01:12:04,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-11-29 01:12:04,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:04,280 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:04,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1511223555, now seen corresponding path program 1 times [2023-11-29 01:12:04,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:04,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346151016] [2023-11-29 01:12:04,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:04,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:04,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:04,282 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:04,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2023-11-29 01:12:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:04,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:12:04,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:05,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:05,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2023-11-29 01:12:05,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 47 [2023-11-29 01:12:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 01:12:06,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:06,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:06,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346151016] [2023-11-29 01:12:06,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346151016] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:06,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737955167] [2023-11-29 01:12:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:06,759 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:06,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:12:06,760 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:12:06,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-11-29 01:12:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:08,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 01:12:08,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:09,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:10,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:10,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2023-11-29 01:12:11,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 47 [2023-11-29 01:12:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 01:12:11,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:11,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1737955167] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:11,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:12:11,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 28 [2023-11-29 01:12:11,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798086014] [2023-11-29 01:12:11,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:12:11,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 01:12:11,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:11,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 01:12:11,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1233, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:12:11,420 INFO L87 Difference]: Start difference. First operand 4665 states and 5920 transitions. Second operand has 29 states, 27 states have (on average 4.296296296296297) internal successors, (116), 26 states have internal predecessors, (116), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 01:12:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:17,155 INFO L93 Difference]: Finished difference Result 7163 states and 9036 transitions. [2023-11-29 01:12:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 01:12:17,156 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 4.296296296296297) internal successors, (116), 26 states have internal predecessors, (116), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 115 [2023-11-29 01:12:17,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:17,161 INFO L225 Difference]: With dead ends: 7163 [2023-11-29 01:12:17,161 INFO L226 Difference]: Without dead ends: 7161 [2023-11-29 01:12:17,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 258 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=573, Invalid=3087, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 01:12:17,163 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 512 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:17,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 3519 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:12:17,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7161 states. [2023-11-29 01:12:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7161 to 6171. [2023-11-29 01:12:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6171 states, 5954 states have (on average 1.282499160228418) internal successors, (7636), 5966 states have internal predecessors, (7636), 131 states have call successors, (131), 85 states have call predecessors, (131), 85 states have return successors, (131), 119 states have call predecessors, (131), 131 states have call successors, (131) [2023-11-29 01:12:17,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6171 states to 6171 states and 7898 transitions. [2023-11-29 01:12:17,579 INFO L78 Accepts]: Start accepts. Automaton has 6171 states and 7898 transitions. Word has length 115 [2023-11-29 01:12:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:17,579 INFO L495 AbstractCegarLoop]: Abstraction has 6171 states and 7898 transitions. [2023-11-29 01:12:17,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 4.296296296296297) internal successors, (116), 26 states have internal predecessors, (116), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 01:12:17,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6171 states and 7898 transitions. [2023-11-29 01:12:17,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 01:12:17,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:17,583 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:17,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2023-11-29 01:12:17,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-11-29 01:12:17,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:17,983 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:17,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1087576833, now seen corresponding path program 1 times [2023-11-29 01:12:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24310361] [2023-11-29 01:12:17,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:17,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:17,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:17,985 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:17,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2023-11-29 01:12:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:18,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:12:18,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 01:12:18,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:12:18,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:18,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24310361] [2023-11-29 01:12:18,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24310361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:18,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:12:18,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:12:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790116846] [2023-11-29 01:12:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:18,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:12:18,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:12:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:12:18,293 INFO L87 Difference]: Start difference. First operand 6171 states and 7898 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:12:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:18,759 INFO L93 Difference]: Finished difference Result 9485 states and 12149 transitions. [2023-11-29 01:12:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:12:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-11-29 01:12:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:18,762 INFO L225 Difference]: With dead ends: 9485 [2023-11-29 01:12:18,762 INFO L226 Difference]: Without dead ends: 4054 [2023-11-29 01:12:18,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:12:18,765 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 7 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:18,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 547 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:12:18,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4054 states. [2023-11-29 01:12:19,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4054 to 3989. [2023-11-29 01:12:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3989 states, 3837 states have (on average 1.2830336200156371) internal successors, (4923), 3843 states have internal predecessors, (4923), 91 states have call successors, (91), 60 states have call predecessors, (91), 60 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:12:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3989 states to 3989 states and 5105 transitions. [2023-11-29 01:12:19,045 INFO L78 Accepts]: Start accepts. Automaton has 3989 states and 5105 transitions. Word has length 115 [2023-11-29 01:12:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:19,045 INFO L495 AbstractCegarLoop]: Abstraction has 3989 states and 5105 transitions. [2023-11-29 01:12:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 01:12:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3989 states and 5105 transitions. [2023-11-29 01:12:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:12:19,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:19,048 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:19,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Ended with exit code 0 [2023-11-29 01:12:19,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:19,249 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:19,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:19,249 INFO L85 PathProgramCache]: Analyzing trace with hash -955619374, now seen corresponding path program 1 times [2023-11-29 01:12:19,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:19,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384743745] [2023-11-29 01:12:19,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:19,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:19,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:19,250 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:19,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2023-11-29 01:12:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:19,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:12:19,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:20,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:20,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:12:20,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 80 [2023-11-29 01:12:20,743 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 01:12:20,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:21,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384743745] [2023-11-29 01:12:21,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384743745] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1858696677] [2023-11-29 01:12:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:21,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:21,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:12:21,056 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:12:21,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-11-29 01:12:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:22,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 01:12:22,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:22,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:23,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:24,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:12:24,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 80 [2023-11-29 01:12:24,297 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 01:12:24,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1858696677] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:24,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:12:24,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2023-11-29 01:12:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243644558] [2023-11-29 01:12:24,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:12:24,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:12:24,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:12:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:12:24,486 INFO L87 Difference]: Start difference. First operand 3989 states and 5105 transitions. Second operand has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 17 states have internal predecessors, (119), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 01:12:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:27,136 INFO L93 Difference]: Finished difference Result 8152 states and 10390 transitions. [2023-11-29 01:12:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:12:27,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 17 states have internal predecessors, (119), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 116 [2023-11-29 01:12:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:27,144 INFO L225 Difference]: With dead ends: 8152 [2023-11-29 01:12:27,144 INFO L226 Difference]: Without dead ends: 8150 [2023-11-29 01:12:27,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=222, Invalid=968, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 01:12:27,146 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 534 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:27,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1633 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:12:27,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8150 states. [2023-11-29 01:12:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8150 to 5323. [2023-11-29 01:12:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5159 states have (on average 1.3054855592169026) internal successors, (6735), 5162 states have internal predecessors, (6735), 97 states have call successors, (97), 66 states have call predecessors, (97), 66 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-29 01:12:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 6929 transitions. [2023-11-29 01:12:27,498 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 6929 transitions. Word has length 116 [2023-11-29 01:12:27,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:27,498 INFO L495 AbstractCegarLoop]: Abstraction has 5323 states and 6929 transitions. [2023-11-29 01:12:27,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 17 states have internal predecessors, (119), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 01:12:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 6929 transitions. [2023-11-29 01:12:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:12:27,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:27,502 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:27,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Ended with exit code 0 [2023-11-29 01:12:27,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-11-29 01:12:27,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:27,903 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:27,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:27,904 INFO L85 PathProgramCache]: Analyzing trace with hash 348218542, now seen corresponding path program 1 times [2023-11-29 01:12:27,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:27,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299197018] [2023-11-29 01:12:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:27,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:27,905 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:27,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2023-11-29 01:12:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:28,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:12:28,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:28,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:12:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:12:28,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:28,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299197018] [2023-11-29 01:12:28,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299197018] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:28,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [83556311] [2023-11-29 01:12:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:28,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:28,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:12:28,655 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:12:28,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-11-29 01:12:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:29,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:12:29,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:12:30,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:12:30,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [83556311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:30,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:30,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 01:12:30,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246235509] [2023-11-29 01:12:30,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:30,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:12:30,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:12:30,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:12:30,359 INFO L87 Difference]: Start difference. First operand 5323 states and 6929 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:32,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:32,450 INFO L93 Difference]: Finished difference Result 11333 states and 14808 transitions. [2023-11-29 01:12:32,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:12:32,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2023-11-29 01:12:32,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:32,459 INFO L225 Difference]: With dead ends: 11333 [2023-11-29 01:12:32,459 INFO L226 Difference]: Without dead ends: 7167 [2023-11-29 01:12:32,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:12:32,462 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 85 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:32,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 549 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:12:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7167 states. [2023-11-29 01:12:32,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7167 to 6663. [2023-11-29 01:12:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6499 states have (on average 1.3091244806893367) internal successors, (8508), 6502 states have internal predecessors, (8508), 97 states have call successors, (97), 66 states have call predecessors, (97), 66 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-29 01:12:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 8702 transitions. [2023-11-29 01:12:32,879 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 8702 transitions. Word has length 116 [2023-11-29 01:12:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:32,879 INFO L495 AbstractCegarLoop]: Abstraction has 6663 states and 8702 transitions. [2023-11-29 01:12:32,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 8702 transitions. [2023-11-29 01:12:32,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:12:32,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:32,885 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:32,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-11-29 01:12:33,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Ended with exit code 0 [2023-11-29 01:12:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:33,286 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:33,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1028276912, now seen corresponding path program 1 times [2023-11-29 01:12:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:33,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727532055] [2023-11-29 01:12:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:33,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:33,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:33,288 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:33,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2023-11-29 01:12:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:33,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:12:33,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:33,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:12:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:12:33,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:34,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:34,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727532055] [2023-11-29 01:12:34,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [727532055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:34,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [111402842] [2023-11-29 01:12:34,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:34,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:34,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:12:34,057 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:12:34,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2023-11-29 01:12:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:34,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:12:34,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:34,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:35,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:12:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:12:35,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:35,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [111402842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:35,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:12:35,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-29 01:12:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294413090] [2023-11-29 01:12:35,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:12:35,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:12:35,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:12:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:12:35,525 INFO L87 Difference]: Start difference. First operand 6663 states and 8702 transitions. Second operand has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 01:12:36,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:36,684 INFO L93 Difference]: Finished difference Result 10690 states and 13953 transitions. [2023-11-29 01:12:36,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:12:36,686 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 116 [2023-11-29 01:12:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:36,690 INFO L225 Difference]: With dead ends: 10690 [2023-11-29 01:12:36,691 INFO L226 Difference]: Without dead ends: 5082 [2023-11-29 01:12:36,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:12:36,694 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 287 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:36,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 515 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:12:36,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5082 states. [2023-11-29 01:12:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5082 to 5026. [2023-11-29 01:12:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 4862 states have (on average 1.2943233237350884) internal successors, (6293), 4865 states have internal predecessors, (6293), 97 states have call successors, (97), 66 states have call predecessors, (97), 66 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-29 01:12:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 6487 transitions. [2023-11-29 01:12:37,017 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 6487 transitions. Word has length 116 [2023-11-29 01:12:37,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:37,017 INFO L495 AbstractCegarLoop]: Abstraction has 5026 states and 6487 transitions. [2023-11-29 01:12:37,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 01:12:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 6487 transitions. [2023-11-29 01:12:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 01:12:37,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:37,021 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:37,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Ended with exit code 0 [2023-11-29 01:12:37,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2023-11-29 01:12:37,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:37,421 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:37,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1204553945, now seen corresponding path program 1 times [2023-11-29 01:12:37,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:37,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155817292] [2023-11-29 01:12:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:37,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:37,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:37,423 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:37,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2023-11-29 01:12:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:37,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:12:37,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:37,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:12:38,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:12:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:12:38,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:38,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 01:12:38,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:38,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155817292] [2023-11-29 01:12:38,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155817292] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:38,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1601077037] [2023-11-29 01:12:38,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:38,358 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:38,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:12:38,359 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:12:38,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2023-11-29 01:12:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:39,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:12:39,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:39,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-11-29 01:12:39,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 01:12:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:12:39,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:12:39,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1601077037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:12:39,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:39,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-29 01:12:39,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391681348] [2023-11-29 01:12:39,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:39,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:12:39,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:39,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:12:39,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:12:39,887 INFO L87 Difference]: Start difference. First operand 5026 states and 6487 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:41,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:41,441 INFO L93 Difference]: Finished difference Result 9111 states and 11795 transitions. [2023-11-29 01:12:41,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:12:41,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2023-11-29 01:12:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:41,446 INFO L225 Difference]: With dead ends: 9111 [2023-11-29 01:12:41,446 INFO L226 Difference]: Without dead ends: 5140 [2023-11-29 01:12:41,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:12:41,449 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 108 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:41,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 823 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:12:41,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2023-11-29 01:12:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 5026. [2023-11-29 01:12:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 4862 states have (on average 1.29062114356232) internal successors, (6275), 4865 states have internal predecessors, (6275), 97 states have call successors, (97), 66 states have call predecessors, (97), 66 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-29 01:12:41,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 6469 transitions. [2023-11-29 01:12:41,870 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 6469 transitions. Word has length 117 [2023-11-29 01:12:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:41,870 INFO L495 AbstractCegarLoop]: Abstraction has 5026 states and 6469 transitions. [2023-11-29 01:12:41,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:41,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 6469 transitions. [2023-11-29 01:12:41,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 01:12:41,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:41,874 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:41,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Ended with exit code 0 [2023-11-29 01:12:42,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (76)] Forceful destruction successful, exit code 0 [2023-11-29 01:12:42,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:42,275 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:42,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1081116967, now seen corresponding path program 1 times [2023-11-29 01:12:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:42,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771493406] [2023-11-29 01:12:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:42,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:42,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:42,277 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:42,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2023-11-29 01:12:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:42,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:12:42,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:43,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 01:12:43,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-29 01:12:43,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-11-29 01:12:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 158 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:12:43,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:12:43,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:43,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771493406] [2023-11-29 01:12:43,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771493406] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:43,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:43,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-11-29 01:12:43,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256190232] [2023-11-29 01:12:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:43,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:12:43,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:12:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:12:43,549 INFO L87 Difference]: Start difference. First operand 5026 states and 6469 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:44,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:44,387 INFO L93 Difference]: Finished difference Result 9177 states and 11813 transitions. [2023-11-29 01:12:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:12:44,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2023-11-29 01:12:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:44,392 INFO L225 Difference]: With dead ends: 9177 [2023-11-29 01:12:44,392 INFO L226 Difference]: Without dead ends: 5206 [2023-11-29 01:12:44,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:12:44,395 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 57 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:44,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 532 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:12:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5206 states. [2023-11-29 01:12:44,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5206 to 4990. [2023-11-29 01:12:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4990 states, 4826 states have (on average 1.29092416079569) internal successors, (6230), 4829 states have internal predecessors, (6230), 97 states have call successors, (97), 66 states have call predecessors, (97), 66 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-29 01:12:44,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6424 transitions. [2023-11-29 01:12:44,724 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6424 transitions. Word has length 118 [2023-11-29 01:12:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:44,724 INFO L495 AbstractCegarLoop]: Abstraction has 4990 states and 6424 transitions. [2023-11-29 01:12:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:44,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6424 transitions. [2023-11-29 01:12:44,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 01:12:44,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:44,727 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:44,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Ended with exit code 0 [2023-11-29 01:12:44,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:44,927 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:44,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:44,928 INFO L85 PathProgramCache]: Analyzing trace with hash -816828041, now seen corresponding path program 1 times [2023-11-29 01:12:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:44,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285049524] [2023-11-29 01:12:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:44,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:44,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:44,940 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:44,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2023-11-29 01:12:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:45,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:12:45,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:45,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 01:12:46,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 01:12:46,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2023-11-29 01:12:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 158 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 01:12:46,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:12:46,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:46,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285049524] [2023-11-29 01:12:46,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285049524] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:46,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:12:46,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-11-29 01:12:46,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627562117] [2023-11-29 01:12:46,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:12:46,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:12:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:12:46,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:12:46,358 INFO L87 Difference]: Start difference. First operand 4990 states and 6424 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:47,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:47,100 INFO L93 Difference]: Finished difference Result 9035 states and 11645 transitions. [2023-11-29 01:12:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:12:47,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2023-11-29 01:12:47,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:47,105 INFO L225 Difference]: With dead ends: 9035 [2023-11-29 01:12:47,105 INFO L226 Difference]: Without dead ends: 5092 [2023-11-29 01:12:47,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:12:47,108 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:47,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 401 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:12:47,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2023-11-29 01:12:47,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4974. [2023-11-29 01:12:47,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4974 states, 4810 states have (on average 1.2885654885654885) internal successors, (6198), 4813 states have internal predecessors, (6198), 97 states have call successors, (97), 66 states have call predecessors, (97), 66 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-29 01:12:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4974 states to 4974 states and 6392 transitions. [2023-11-29 01:12:47,464 INFO L78 Accepts]: Start accepts. Automaton has 4974 states and 6392 transitions. Word has length 118 [2023-11-29 01:12:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:47,464 INFO L495 AbstractCegarLoop]: Abstraction has 4974 states and 6392 transitions. [2023-11-29 01:12:47,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:12:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4974 states and 6392 transitions. [2023-11-29 01:12:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 01:12:47,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:47,466 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:47,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Ended with exit code 0 [2023-11-29 01:12:47,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:47,666 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:47,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2055790156, now seen corresponding path program 1 times [2023-11-29 01:12:47,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:47,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50367830] [2023-11-29 01:12:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:47,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:47,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:47,668 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:47,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2023-11-29 01:12:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:47,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:12:47,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:48,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:49,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:12:49,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 78 [2023-11-29 01:12:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 83 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:12:49,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:49,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:12:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50367830] [2023-11-29 01:12:49,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50367830] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:49,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1250859504] [2023-11-29 01:12:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:49,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:12:49,832 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:12:49,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2023-11-29 01:12:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:51,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 01:12:51,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:52,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:53,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:12:53,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 92 [2023-11-29 01:12:53,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 78 [2023-11-29 01:12:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 1 proven. 83 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:12:53,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:12:54,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1250859504] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:12:54,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:12:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2023-11-29 01:12:54,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110393703] [2023-11-29 01:12:54,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:12:54,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 01:12:54,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:12:54,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 01:12:54,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2023-11-29 01:12:54,074 INFO L87 Difference]: Start difference. First operand 4974 states and 6392 transitions. Second operand has 24 states, 22 states have (on average 5.863636363636363) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 01:12:58,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:12:58,596 INFO L93 Difference]: Finished difference Result 7734 states and 9736 transitions. [2023-11-29 01:12:58,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 01:12:58,597 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 5.863636363636363) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 118 [2023-11-29 01:12:58,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:12:58,603 INFO L225 Difference]: With dead ends: 7734 [2023-11-29 01:12:58,604 INFO L226 Difference]: Without dead ends: 7732 [2023-11-29 01:12:58,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 281 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=433, Invalid=2017, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 01:12:58,606 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 360 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:12:58,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 2037 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 01:12:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2023-11-29 01:12:58,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 3730. [2023-11-29 01:12:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3578 states have (on average 1.2705422023476802) internal successors, (4546), 3584 states have internal predecessors, (4546), 91 states have call successors, (91), 60 states have call predecessors, (91), 60 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 01:12:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 4728 transitions. [2023-11-29 01:12:58,939 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 4728 transitions. Word has length 118 [2023-11-29 01:12:58,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:12:58,939 INFO L495 AbstractCegarLoop]: Abstraction has 3730 states and 4728 transitions. [2023-11-29 01:12:58,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 5.863636363636363) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 01:12:58,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 4728 transitions. [2023-11-29 01:12:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 01:12:58,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:58,941 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:58,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2023-11-29 01:12:59,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2023-11-29 01:12:59,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 01:12:59,342 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:59,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:59,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1922714064, now seen corresponding path program 1 times [2023-11-29 01:12:59,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:12:59,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818996219] [2023-11-29 01:12:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:59,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:12:59,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:12:59,344 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:12:59,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2023-11-29 01:12:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:12:59,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:12:59,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:12:59,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:13:00,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:13:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 9 proven. 107 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 01:13:00,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:00,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 01:13:00,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:13:00,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818996219] [2023-11-29 01:13:00,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818996219] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:13:00,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [487633048] [2023-11-29 01:13:00,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:00,463 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:13:00,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:13:00,464 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:13:00,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d0142e-e7b3-40b9-8886-feab3dbf2a80/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2023-11-29 01:13:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:13:01,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:01,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-29 01:13:01,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 01:13:01,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 01:13:06,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 01:13:10,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 01:13:10,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2023-11-29 01:13:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:13:10,888 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:10,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [487633048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:10,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:13:10,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9] total 23 [2023-11-29 01:13:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576996737] [2023-11-29 01:13:10,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:10,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:13:10,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:13:10,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:13:10,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=592, Unknown=2, NotChecked=0, Total=650 [2023-11-29 01:13:10,890 INFO L87 Difference]: Start difference. First operand 3730 states and 4728 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-29 01:13:16,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:36,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:40,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:44,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:48,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:52,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:56,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:01,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:05,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:09,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:29,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:33,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:37,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:41,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:45,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:49,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:53,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:14:57,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:01,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:05,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:09,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:13,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:17,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:21,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:25,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:29,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:33,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:37,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:41,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:45,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:49,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:53,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:15:57,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:01,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:05,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:09,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:14,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:34,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:38,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:42,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:46,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:50,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:54,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:16:58,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:02,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:06,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:10,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:30,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:34,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:38,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:42,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:46,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:50,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:54,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:17:59,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:03,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:07,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:27,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:31,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:35,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:39,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:43,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:18:47,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:07,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:11,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:15,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:19,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:39,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:43,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:19:47,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:07,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:11,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:16,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:20,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:24,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:28,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:32,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:52,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:20:56,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:21:00,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]