./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme --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 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:03,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:03,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:49:03,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:03,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:03,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:03,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:03,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:03,465 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:03,473 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:03,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:03,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:03,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:03,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:03,478 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:03,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:03,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:49:03,480 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:03,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:03,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:03,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:03,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:49:03,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:03,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:49:03,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:03,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:49:03,484 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:03,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:03,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:03,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:03,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:03,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:03,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:03,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:03,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:49:03,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:03,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:03,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:03,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:03,491 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:49:03,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:03,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:03,492 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_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 [2023-11-26 10:49:03,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:03,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:03,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:03,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:03,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:03,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i [2023-11-26 10:49:06,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:07,221 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:07,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i [2023-11-26 10:49:07,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data/275fea94f/58f9e3a0fa4d467c8dd4ab54959ec51c/FLAG9084845e8 [2023-11-26 10:49:07,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data/275fea94f/58f9e3a0fa4d467c8dd4ab54959ec51c [2023-11-26 10:49:07,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:07,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:07,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:07,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:07,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:07,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12af1570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07, skipping insertion in model container [2023-11-26 10:49:07,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,324 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:07,522 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_33a00549-97d9-4755-af04-80a6dcea55a0/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2023-11-26 10:49:07,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:07,615 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:07,634 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_33a00549-97d9-4755-af04-80a6dcea55a0/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2023-11-26 10:49:07,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:07,703 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:07,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07 WrapperNode [2023-11-26 10:49:07,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:07,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:07,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:07,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:07,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,773 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2023-11-26 10:49:07,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:07,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:07,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:07,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:07,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,806 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:49:07,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:07,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:07,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:07,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:07,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (1/1) ... [2023-11-26 10:49:07,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:07,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:07,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:07,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:07,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:07,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:49:07,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:49:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:49:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:07,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:08,045 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:08,047 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:08,372 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:08,408 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:08,408 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:49:08,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:08 BoogieIcfgContainer [2023-11-26 10:49:08,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:08,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:08,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:08,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:08,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:07" (1/3) ... [2023-11-26 10:49:08,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fa0092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:08, skipping insertion in model container [2023-11-26 10:49:08,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:07" (2/3) ... [2023-11-26 10:49:08,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fa0092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:08, skipping insertion in model container [2023-11-26 10:49:08,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:08" (3/3) ... [2023-11-26 10:49:08,420 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-30.i [2023-11-26 10:49:08,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:08,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:49:08,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:08,535 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;@34dc7547, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:08,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:49:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 43 states have internal predecessors, (65), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:49:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-26 10:49:08,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:08,555 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:08,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:08,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:08,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1348504592, now seen corresponding path program 1 times [2023-11-26 10:49:08,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:08,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095313715] [2023-11-26 10:49:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:08,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:49:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:49:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:49:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:49:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 10:49:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:49:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:49:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:49:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 10:49:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:49:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:49:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:49:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:49:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 10:49:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 10:49:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 10:49:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 10:49:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 10:49:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-26 10:49:09,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095313715] [2023-11-26 10:49:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095313715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:09,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778147510] [2023-11-26 10:49:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:09,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:49:09,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:09,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:49:09,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:49:09,084 INFO L87 Difference]: Start difference. First operand has 63 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 43 states have internal predecessors, (65), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:49:09,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:09,128 INFO L93 Difference]: Finished difference Result 123 states and 218 transitions. [2023-11-26 10:49:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:49:09,130 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 117 [2023-11-26 10:49:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:09,139 INFO L225 Difference]: With dead ends: 123 [2023-11-26 10:49:09,139 INFO L226 Difference]: Without dead ends: 61 [2023-11-26 10:49:09,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:49:09,147 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:09,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:49:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-26 10:49:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-26 10:49:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 41 states have internal predecessors, (60), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:49:09,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 96 transitions. [2023-11-26 10:49:09,207 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 96 transitions. Word has length 117 [2023-11-26 10:49:09,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:09,208 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 96 transitions. [2023-11-26 10:49:09,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:49:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 96 transitions. [2023-11-26 10:49:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-26 10:49:09,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:09,218 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:09,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:49:09,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:09,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:09,221 INFO L85 PathProgramCache]: Analyzing trace with hash -288352356, now seen corresponding path program 1 times [2023-11-26 10:49:09,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:09,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647684673] [2023-11-26 10:49:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:09,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:49:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:49:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:49:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:49:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 10:49:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:49:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:49:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:49:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 10:49:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:49:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:49:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:49:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:49:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 10:49:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 10:49:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 10:49:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 10:49:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 10:49:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-26 10:49:10,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:10,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647684673] [2023-11-26 10:49:10,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647684673] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:49:10,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206847319] [2023-11-26 10:49:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:10,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:10,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:10,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:49:10,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:49:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:49:10,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 233 proven. 39 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-11-26 10:49:11,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-26 10:49:11,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206847319] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:49:11,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:49:11,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2023-11-26 10:49:11,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586054134] [2023-11-26 10:49:11,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:49:11,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:49:11,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:11,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:49:11,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:49:11,402 INFO L87 Difference]: Start difference. First operand 61 states and 96 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-26 10:49:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:11,963 INFO L93 Difference]: Finished difference Result 138 states and 210 transitions. [2023-11-26 10:49:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:49:11,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 117 [2023-11-26 10:49:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:11,969 INFO L225 Difference]: With dead ends: 138 [2023-11-26 10:49:11,970 INFO L226 Difference]: Without dead ends: 78 [2023-11-26 10:49:11,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 265 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:49:11,976 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 176 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:11,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 181 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:49:11,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-26 10:49:12,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2023-11-26 10:49:12,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 50 states have internal predecessors, (65), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-26 10:49:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 109 transitions. [2023-11-26 10:49:12,023 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 109 transitions. Word has length 117 [2023-11-26 10:49:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 109 transitions. [2023-11-26 10:49:12,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-26 10:49:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 109 transitions. [2023-11-26 10:49:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-26 10:49:12,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:12,027 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:12,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:12,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:49:12,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:12,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 852982643, now seen corresponding path program 1 times [2023-11-26 10:49:12,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:12,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513635876] [2023-11-26 10:49:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:12,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:49:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:49:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:49:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 10:49:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 10:49:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:49:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 10:49:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 10:49:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 10:49:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:49:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 10:49:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 10:49:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 10:49:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 10:49:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 10:49:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 10:49:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 10:49:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 10:49:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-26 10:49:12,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:12,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513635876] [2023-11-26 10:49:12,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513635876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:12,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:49:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15384893] [2023-11-26 10:49:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:12,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:49:12,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:12,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:49:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:12,562 INFO L87 Difference]: Start difference. First operand 75 states and 109 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-26 10:49:12,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:12,714 INFO L93 Difference]: Finished difference Result 191 states and 282 transitions. [2023-11-26 10:49:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:49:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2023-11-26 10:49:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:12,718 INFO L225 Difference]: With dead ends: 191 [2023-11-26 10:49:12,719 INFO L226 Difference]: Without dead ends: 123 [2023-11-26 10:49:12,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:49:12,721 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 92 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:12,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 260 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:49:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-26 10:49:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 87. [2023-11-26 10:49:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 62 states have internal predecessors, (85), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-26 10:49:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 129 transitions. [2023-11-26 10:49:12,750 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 129 transitions. Word has length 119 [2023-11-26 10:49:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:12,751 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 129 transitions. [2023-11-26 10:49:12,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-26 10:49:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions. [2023-11-26 10:49:12,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-26 10:49:12,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:12,755 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:12,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:49:12,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:12,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:12,756 INFO L85 PathProgramCache]: Analyzing trace with hash -426881035, now seen corresponding path program 1 times [2023-11-26 10:49:12,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:12,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892407972] [2023-11-26 10:49:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:12,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:49:12,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:49:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:49:12,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:49:12,939 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:49:12,940 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:49:12,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:49:12,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:49:12,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:49:13,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 10:49:13,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short18 could not be translated [2023-11-26 10:49:13,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:49:13 BoogieIcfgContainer [2023-11-26 10:49:13,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:49:13,090 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:49:13,090 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:49:13,091 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:49:13,091 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:08" (3/4) ... [2023-11-26 10:49:13,093 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:49:13,095 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:49:13,095 INFO L158 Benchmark]: Toolchain (without parser) took 5827.93ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 116.4MB in the beginning and 103.2MB in the end (delta: 13.2MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-11-26 10:49:13,098 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:13,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.89ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 103.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:49:13,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.77ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 100.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:13,100 INFO L158 Benchmark]: Boogie Preprocessor took 53.30ms. Allocated memory is still 155.2MB. Free memory was 100.6MB in the beginning and 98.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:13,100 INFO L158 Benchmark]: RCFGBuilder took 580.46ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 79.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:49:13,101 INFO L158 Benchmark]: TraceAbstraction took 4677.25ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 78.4MB in the beginning and 103.2MB in the end (delta: -24.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-26 10:49:13,101 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 186.6MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:13,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.89ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 103.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.77ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 100.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.30ms. Allocated memory is still 155.2MB. Free memory was 100.6MB in the beginning and 98.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.46ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 79.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4677.25ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 78.4MB in the beginning and 103.2MB in the end (delta: -24.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 186.6MB. Free memory is still 103.2MB. 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~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short18 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 someBinaryDOUBLEComparisonOperation at line 127, overapproximation of someBinaryArithmeticDOUBLEoperation at line 87. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] signed short int var_1_2 = -256; [L24] signed long int var_1_3 = 256; [L25] unsigned char var_1_4 = 0; [L26] double var_1_5 = 127.5; [L27] unsigned char var_1_6 = 0; [L28] double var_1_7 = 10000000000000.125; [L29] double var_1_8 = 1.25; [L30] double var_1_9 = 4.125; [L31] double var_1_10 = 25.7; [L32] signed long int var_1_11 = -2; [L33] double var_1_12 = 49.75; [L34] signed long int var_1_13 = 5; [L35] signed long int var_1_14 = 128; [L36] signed long int var_1_15 = 1000; [L37] double var_1_16 = 0.2; [L38] double var_1_17 = 0.25; [L39] double var_1_18 = 99999999999999.5; [L131] isInitial = 1 [L132] FCALL initially() [L133] COND TRUE 1 [L134] FCALL updateLastVariables() [L135] CALL updateVariables() [L93] var_1_2 = __VERIFIER_nondet_short() [L94] CALL assume_abort_if_not(var_1_2 >= -32768) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L94] RET assume_abort_if_not(var_1_2 >= -32768) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L95] CALL assume_abort_if_not(var_1_2 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L95] RET assume_abort_if_not(var_1_2 <= 32767) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=256, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L96] var_1_3 = __VERIFIER_nondet_long() [L97] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L97] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L98] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L98] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=0, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L99] var_1_4 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_4 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L100] RET assume_abort_if_not(var_1_4 >= 1) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L101] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L101] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L102] var_1_6 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L103] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L104] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L104] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_7=80000000000001/8, var_1_8=5/4, var_1_9=33/8] [L105] var_1_7 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4, var_1_9=33/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4, var_1_9=33/8] [L106] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4, var_1_9=33/8] [L107] var_1_9 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L108] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=257/10, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L109] var_1_10 = __VERIFIER_nondet_double() [L110] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L110] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_12=199/4, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L111] var_1_12 = __VERIFIER_nondet_double() [L112] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L112] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_13=5, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L113] var_1_13 = __VERIFIER_nondet_long() [L114] CALL assume_abort_if_not(var_1_13 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L114] RET assume_abort_if_not(var_1_13 >= -1) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L115] CALL assume_abort_if_not(var_1_13 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L115] RET assume_abort_if_not(var_1_13 <= 2147483646) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=128, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L116] var_1_14 = __VERIFIER_nondet_long() [L117] CALL assume_abort_if_not(var_1_14 >= -2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L117] RET assume_abort_if_not(var_1_14 >= -2147483647) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L118] CALL assume_abort_if_not(var_1_14 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L118] RET assume_abort_if_not(var_1_14 <= 2147483646) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_17=1/4, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L119] var_1_17 = __VERIFIER_nondet_double() [L120] CALL assume_abort_if_not((var_1_17 >= -461168.6018427382800e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L120] RET assume_abort_if_not((var_1_17 >= -461168.6018427382800e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_18=199999999999999/2, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L121] var_1_18 = __VERIFIER_nondet_double() [L122] CALL assume_abort_if_not((var_1_18 >= -230584.3009213691390e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 2305843.009213691390e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L122] RET assume_abort_if_not((var_1_18 >= -230584.3009213691390e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 2305843.009213691390e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L135] RET updateVariables() [L136] CALL step() [L43] COND FALSE !((var_1_2 / ((((-16) < 0 ) ? -(-16) : (-16)))) >= var_1_3) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L46] COND TRUE \read(var_1_1) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=255/2, var_1_6=0, var_1_8=5/4] [L47] COND FALSE !(var_1_2 >= var_1_3) [L52] var_1_5 = var_1_7 VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=5/4] [L55] COND FALSE !(10.55f < var_1_5) VAL [isInitial=1, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=5/4] [L60] COND TRUE var_1_5 > var_1_7 [L61] var_1_8 = var_1_10 VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L66] COND TRUE \read(var_1_1) VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-2, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L67] COND TRUE ((((var_1_9) > (49.75)) ? (var_1_9) : (49.75))) > var_1_12 [L68] var_1_11 = ((((var_1_2) < ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14))))) ? (var_1_2) : ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14)))))) VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L73] EXPR var_1_3 & var_1_13 VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=1000, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L73] COND FALSE !((- var_1_2) > (var_1_3 & var_1_13)) [L84] var_1_15 = var_1_13 VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=0, var_1_16=1/5, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L86] COND TRUE ((((var_1_12) < (var_1_5)) ? (var_1_12) : (var_1_5))) >= var_1_7 [L87] var_1_16 = (var_1_17 + (var_1_18 + 16.75)) VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=0, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L136] RET step() [L137] CALL, EXPR property() [L127] EXPR ((((((var_1_2 / ((((-16) < 0 ) ? -(-16) : (-16)))) >= var_1_3) ? (var_1_1 == ((unsigned char) var_1_4)) : 1) && (var_1_1 ? ((var_1_2 >= var_1_3) ? ((var_1_6 || (var_1_2 < var_1_3)) ? (var_1_5 == ((double) var_1_7)) : 1) : (var_1_5 == ((double) var_1_7))) : 1)) && ((10.55f < var_1_5) ? ((var_1_5 > (var_1_7 * var_1_9)) ? (var_1_8 == ((double) ((((var_1_7) > (var_1_10)) ? (var_1_7) : (var_1_10))))) : 1) : ((var_1_5 > var_1_7) ? (var_1_8 == ((double) var_1_10)) : (var_1_8 == ((double) var_1_7))))) && (var_1_1 ? ((((((var_1_9) > (49.75)) ? (var_1_9) : (49.75))) > var_1_12) ? (var_1_11 == ((signed long int) ((((var_1_2) < ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14))))) ? (var_1_2) : ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14)))))))) : 1) : (var_1_11 == ((signed long int) var_1_2)))) && (((- var_1_2) > (var_1_3 & var_1_13)) ? ((var_1_2 <= 128) ? (var_1_1 ? (var_1_15 == ((signed long int) var_1_14)) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_13))) VAL [isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=0, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L127-L128] return (((((((var_1_2 / ((((-16) < 0 ) ? -(-16) : (-16)))) >= var_1_3) ? (var_1_1 == ((unsigned char) var_1_4)) : 1) && (var_1_1 ? ((var_1_2 >= var_1_3) ? ((var_1_6 || (var_1_2 < var_1_3)) ? (var_1_5 == ((double) var_1_7)) : 1) : (var_1_5 == ((double) var_1_7))) : 1)) && ((10.55f < var_1_5) ? ((var_1_5 > (var_1_7 * var_1_9)) ? (var_1_8 == ((double) ((((var_1_7) > (var_1_10)) ? (var_1_7) : (var_1_10))))) : 1) : ((var_1_5 > var_1_7) ? (var_1_8 == ((double) var_1_10)) : (var_1_8 == ((double) var_1_7))))) && (var_1_1 ? ((((((var_1_9) > (49.75)) ? (var_1_9) : (49.75))) > var_1_12) ? (var_1_11 == ((signed long int) ((((var_1_2) < ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14))))) ? (var_1_2) : ((((((var_1_13 - 5)) > (var_1_14)) ? ((var_1_13 - 5)) : (var_1_14)))))))) : 1) : (var_1_11 == ((signed long int) var_1_2)))) && (((- var_1_2) > (var_1_3 & var_1_13)) ? ((var_1_2 <= 128) ? (var_1_1 ? (var_1_15 == ((signed long int) var_1_14)) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_14))) : (var_1_15 == ((signed long int) var_1_13)))) && ((((((var_1_12) < (var_1_5)) ? (var_1_12) : (var_1_5))) >= var_1_7) ? (var_1_16 == ((double) (var_1_17 + (var_1_18 + 16.75)))) : (var_1_16 == ((double) var_1_17))) ; [L137] RET, EXPR property() [L137] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=0, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=100000000000004, var_1_11=-5, var_1_13=0, var_1_14=-6, var_1_15=0, var_1_1=1, var_1_2=17, var_1_3=18, var_1_4=1, var_1_5=100000000000005, var_1_6=0, var_1_7=100000000000005, var_1_8=100000000000004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 289 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 534 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 271 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 263 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 380 GetRequests, 359 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=3, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 39 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 589 NumberOfCodeBlocks, 589 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 582 ConstructedInterpolants, 0 QuantifiedInterpolants, 1744 SizeOfPredicates, 4 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2943/3060 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 [2023-11-26 10:49:13,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme --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 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:15,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:16,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:49:16,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:16,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:16,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:16,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:16,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:16,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:16,148 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:16,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:16,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:16,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:16,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:16,152 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:16,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:16,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:49:16,154 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:16,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:16,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:16,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:49:16,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:16,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:49:16,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:49:16,158 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:49:16,158 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:49:16,159 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:16,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:49:16,160 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:16,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:16,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:16,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:16,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:16,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:16,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:16,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:16,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:49:16,164 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:49:16,165 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:49:16,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:16,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:16,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:49:16,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:16,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:16,167 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:49:16,167 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_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552b13618f2386da274168de8e30ff0529ac5ed23541c18f07ea90cf7d0b9e92 [2023-11-26 10:49:16,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:16,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:16,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:16,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:16,620 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:16,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i [2023-11-26 10:49:19,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:20,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:20,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i [2023-11-26 10:49:20,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data/9c2f7f9c8/ec17b55329ed4dc490f9e83e400993d5/FLAG5b5f5179a [2023-11-26 10:49:20,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/data/9c2f7f9c8/ec17b55329ed4dc490f9e83e400993d5 [2023-11-26 10:49:20,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:20,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:20,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:20,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:20,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:20,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c01219c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20, skipping insertion in model container [2023-11-26 10:49:20,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,165 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:20,354 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_33a00549-97d9-4755-af04-80a6dcea55a0/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2023-11-26 10:49:20,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:20,481 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:20,504 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_33a00549-97d9-4755-af04-80a6dcea55a0/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-30.i[913,926] [2023-11-26 10:49:20,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:20,633 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:20,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20 WrapperNode [2023-11-26 10:49:20,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:20,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:20,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:20,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:20,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,714 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-26 10:49:20,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:20,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:20,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:20,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:20,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,769 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:49:20,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:20,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:20,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:20,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:20,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (1/1) ... [2023-11-26 10:49:20,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:20,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:20,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:20,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:49:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:49:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:49:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:21,059 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:21,062 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:32,291 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:32,374 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:32,374 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:49:32,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:32 BoogieIcfgContainer [2023-11-26 10:49:32,375 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:32,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:32,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:32,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:32,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:20" (1/3) ... [2023-11-26 10:49:32,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a3bdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:32, skipping insertion in model container [2023-11-26 10:49:32,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:20" (2/3) ... [2023-11-26 10:49:32,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a3bdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:32, skipping insertion in model container [2023-11-26 10:49:32,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:32" (3/3) ... [2023-11-26 10:49:32,388 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-30.i [2023-11-26 10:49:32,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:32,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:49:32,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:32,493 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;@4e53ec77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:32,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:49:32,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 36 states have internal predecessors, (53), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:49:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 10:49:32,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:32,523 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:32,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:32,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:32,531 INFO L85 PathProgramCache]: Analyzing trace with hash 341585577, now seen corresponding path program 1 times [2023-11-26 10:49:32,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:32,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050173536] [2023-11-26 10:49:32,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:32,545 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 [2023-11-26 10:49:32,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:32,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:49:32,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:49:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:33,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:49:33,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-11-26 10:49:33,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:33,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:33,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050173536] [2023-11-26 10:49:33,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050173536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:33,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:33,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263932042] [2023-11-26 10:49:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:33,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:49:33,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:33,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:49:33,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:49:33,447 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 36 states have internal predecessors, (53), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:49:37,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:49:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:37,240 INFO L93 Difference]: Finished difference Result 109 states and 194 transitions. [2023-11-26 10:49:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:49:37,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 114 [2023-11-26 10:49:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:37,304 INFO L225 Difference]: With dead ends: 109 [2023-11-26 10:49:37,305 INFO L226 Difference]: Without dead ends: 54 [2023-11-26 10:49:37,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:49:37,312 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:37,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-26 10:49:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-26 10:49:37,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-26 10:49:37,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 10:49:37,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2023-11-26 10:49:37,371 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 84 transitions. Word has length 114 [2023-11-26 10:49:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:37,372 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 84 transitions. [2023-11-26 10:49:37,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-26 10:49:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2023-11-26 10:49:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-26 10:49:37,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:37,377 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:37,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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)] Ended with exit code 0 [2023-11-26 10:49:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:37,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:37,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 302460573, now seen corresponding path program 1 times [2023-11-26 10:49:37,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:37,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407068645] [2023-11-26 10:49:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:37,586 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 [2023-11-26 10:49:37,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:37,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:49:37,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:49:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:38,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:49:38,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:39,710 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 248 proven. 72 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-11-26 10:49:39,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:49:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-26 10:49:40,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:40,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407068645] [2023-11-26 10:49:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407068645] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:49:40,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:49:40,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2023-11-26 10:49:40,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846670206] [2023-11-26 10:49:40,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:49:40,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 10:49:40,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:40,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:49:40,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:49:40,439 INFO L87 Difference]: Start difference. First operand 54 states and 84 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-11-26 10:49:45,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:49:46,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:49:46,467 INFO L93 Difference]: Finished difference Result 126 states and 188 transitions. [2023-11-26 10:49:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 10:49:46,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 114 [2023-11-26 10:49:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:49:46,474 INFO L225 Difference]: With dead ends: 126 [2023-11-26 10:49:46,474 INFO L226 Difference]: Without dead ends: 73 [2023-11-26 10:49:46,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2023-11-26 10:49:46,478 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 159 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:49:46,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 183 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-26 10:49:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-26 10:49:46,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2023-11-26 10:49:46,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 43 states have internal predecessors, (53), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-26 10:49:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 97 transitions. [2023-11-26 10:49:46,499 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 97 transitions. Word has length 114 [2023-11-26 10:49:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:49:46,500 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 97 transitions. [2023-11-26 10:49:46,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-11-26 10:49:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2023-11-26 10:49:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 10:49:46,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:49:46,504 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:46,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-26 10:49:46,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:49:46,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:49:46,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:46,716 INFO L85 PathProgramCache]: Analyzing trace with hash 995345702, now seen corresponding path program 1 times [2023-11-26 10:49:46,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:49:46,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937802610] [2023-11-26 10:49:46,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:46,722 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 [2023-11-26 10:49:46,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:49:46,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:49:46,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a00549-97d9-4755-af04-80a6dcea55a0/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:49:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:47,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:49:47,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:49:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-26 10:49:47,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:49:47,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:49:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937802610] [2023-11-26 10:49:47,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937802610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:47,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:47,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:47,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172184236] [2023-11-26 10:49:47,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:47,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:47,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:49:47,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:47,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:47,366 INFO L87 Difference]: Start difference. First operand 68 states and 97 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-26 10:49:51,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:49:55,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:49:58,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:50:02,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:50:03,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []