./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 49a7910a640b9ef8dea3798033f5d3f27279f235dab211562519047fb85b8da0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:08:06,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:08:06,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:08:06,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:08:06,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:08:06,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:08:06,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:08:06,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:08:06,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:08:06,365 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:08:06,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:08:06,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:08:06,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:08:06,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:08:06,368 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:08:06,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:08:06,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:08:06,369 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:08:06,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:08:06,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:08:06,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:08:06,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:08:06,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:08:06,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:08:06,373 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:08:06,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:08:06,374 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:08:06,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:08:06,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:08:06,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:08:06,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:08:06,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:08:06,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:08:06,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:08:06,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:08:06,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:08:06,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:08:06,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:08:06,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:08:06,378 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:08:06,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:08:06,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:08:06,379 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_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49a7910a640b9ef8dea3798033f5d3f27279f235dab211562519047fb85b8da0 [2023-11-29 03:08:06,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:08:06,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:08:06,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:08:06,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:08:06,647 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:08:06,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i [2023-11-29 03:08:09,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:08:09,560 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:08:09,560 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i [2023-11-29 03:08:09,571 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data/5b18ef78d/a2340161e87b402897b0c0aa1275bd2c/FLAGeb8462f52 [2023-11-29 03:08:09,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data/5b18ef78d/a2340161e87b402897b0c0aa1275bd2c [2023-11-29 03:08:09,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:08:09,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:08:09,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:08:09,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:08:09,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:08:09,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:09,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a4c89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09, skipping insertion in model container [2023-11-29 03:08:09,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:09,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:08:09,751 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_ff8a5887-1440-4f1e-99e6-618d0f168a00/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i[913,926] [2023-11-29 03:08:09,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:08:09,833 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:08:09,847 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_ff8a5887-1440-4f1e-99e6-618d0f168a00/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i[913,926] [2023-11-29 03:08:09,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:08:09,900 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:08:09,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09 WrapperNode [2023-11-29 03:08:09,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:08:09,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:08:09,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:08:09,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:08:09,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:09,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:09,974 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 182 [2023-11-29 03:08:09,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:08:09,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:08:09,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:08:09,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:08:09,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:09,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:09,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,017 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]. [2023-11-29 03:08:10,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:08:10,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:08:10,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:08:10,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:08:10,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (1/1) ... [2023-11-29 03:08:10,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:08:10,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:08:10,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:08:10,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:08:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:08:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:08:10,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:08:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:08:10,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:08:10,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:08:10,220 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:08:10,222 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:08:10,634 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:08:10,662 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:08:10,663 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:08:10,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:08:10 BoogieIcfgContainer [2023-11-29 03:08:10,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:08:10,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:08:10,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:08:10,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:08:10,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:08:09" (1/3) ... [2023-11-29 03:08:10,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46669c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:08:10, skipping insertion in model container [2023-11-29 03:08:10,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:08:09" (2/3) ... [2023-11-29 03:08:10,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46669c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:08:10, skipping insertion in model container [2023-11-29 03:08:10,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:08:10" (3/3) ... [2023-11-29 03:08:10,672 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-28.i [2023-11-29 03:08:10,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:08:10,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:08:10,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:08:10,745 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;@778170d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:08:10,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:08:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 45 states have internal predecessors, (63), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:08:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:08:10,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:08:10,770 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:08:10,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:08:10,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:08:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1108682348, now seen corresponding path program 1 times [2023-11-29 03:08:10,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:08:10,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136402826] [2023-11-29 03:08:10,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:08:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:08:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136402826] [2023-11-29 03:08:10,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:08:10,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549326916] [2023-11-29 03:08:10,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:10,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:08:10,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:08:10,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:08:10,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:08:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:11,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:08:11,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:08:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2023-11-29 03:08:11,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:08:11,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549326916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:08:11,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:08:11,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:08:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665837384] [2023-11-29 03:08:11,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:08:11,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:08:11,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:08:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:08:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:08:11,270 INFO L87 Difference]: Start difference. First operand has 79 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 45 states have internal predecessors, (63), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 03:08:11,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:08:11,312 INFO L93 Difference]: Finished difference Result 155 states and 284 transitions. [2023-11-29 03:08:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:08:11,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 192 [2023-11-29 03:08:11,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:08:11,322 INFO L225 Difference]: With dead ends: 155 [2023-11-29 03:08:11,322 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 03:08:11,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:08:11,330 INFO L413 NwaCegarLoop]: 119 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, 119 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 [2023-11-29 03:08:11,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:08:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 03:08:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 03:08:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:08:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 122 transitions. [2023-11-29 03:08:11,379 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 122 transitions. Word has length 192 [2023-11-29 03:08:11,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:08:11,380 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 122 transitions. [2023-11-29 03:08:11,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 03:08:11,381 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 122 transitions. [2023-11-29 03:08:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:08:11,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:08:11,387 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:08:11,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:08:11,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:08:11,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:08:11,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:08:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2116447092, now seen corresponding path program 1 times [2023-11-29 03:08:11,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:08:11,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699727466] [2023-11-29 03:08:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:08:11,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:08:11,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984055759] [2023-11-29 03:08:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:11,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:08:11,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:08:11,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:08:11,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:08:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:11,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:08:11,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:08:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 947 proven. 123 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2023-11-29 03:08:23,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:08:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:08:36,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:08:36,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699727466] [2023-11-29 03:08:36,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:08:36,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984055759] [2023-11-29 03:08:36,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984055759] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:08:36,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:08:36,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2023-11-29 03:08:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782939809] [2023-11-29 03:08:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:08:36,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:08:36,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:08:36,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:08:36,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:08:36,297 INFO L87 Difference]: Start difference. First operand 77 states and 122 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:08:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:08:37,824 INFO L93 Difference]: Finished difference Result 189 states and 299 transitions. [2023-11-29 03:08:37,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:08:37,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-11-29 03:08:37,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:08:37,829 INFO L225 Difference]: With dead ends: 189 [2023-11-29 03:08:37,829 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 03:08:37,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:08:37,832 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 128 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:08:37,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 404 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:08:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 03:08:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-11-29 03:08:37,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 52 states have internal predecessors, (74), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:08:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 138 transitions. [2023-11-29 03:08:37,854 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 138 transitions. Word has length 192 [2023-11-29 03:08:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:08:37,856 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 138 transitions. [2023-11-29 03:08:37,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:08:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 138 transitions. [2023-11-29 03:08:37,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:08:37,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:08:37,860 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:08:37,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:08:38,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:08:38,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:08:38,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:08:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1307100466, now seen corresponding path program 1 times [2023-11-29 03:08:38,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:08:38,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072007586] [2023-11-29 03:08:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:38,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:08:38,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:08:38,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700786889] [2023-11-29 03:08:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:38,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:08:38,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:08:38,110 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:08:38,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:08:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:38,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 03:08:38,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:08:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 947 proven. 123 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2023-11-29 03:08:55,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:09:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:09:09,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:09,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072007586] [2023-11-29 03:09:09,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:09:09,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700786889] [2023-11-29 03:09:09,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700786889] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 03:09:09,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:09:09,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2023-11-29 03:09:09,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145735423] [2023-11-29 03:09:09,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:09,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:09:09,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:09,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:09:09,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:09:09,667 INFO L87 Difference]: Start difference. First operand 86 states and 138 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:11,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:11,271 INFO L93 Difference]: Finished difference Result 224 states and 356 transitions. [2023-11-29 03:09:11,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:09:11,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-11-29 03:09:11,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:11,275 INFO L225 Difference]: With dead ends: 224 [2023-11-29 03:09:11,275 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 03:09:11,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:09:11,278 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 168 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:11,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 358 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:09:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 03:09:11,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 89. [2023-11-29 03:09:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 55 states have internal predecessors, (80), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:09:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 144 transitions. [2023-11-29 03:09:11,294 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 144 transitions. Word has length 192 [2023-11-29 03:09:11,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:11,295 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 144 transitions. [2023-11-29 03:09:11,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:11,295 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 144 transitions. [2023-11-29 03:09:11,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:09:11,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:11,299 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:11,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:09:11,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:11,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:11,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2008165044, now seen corresponding path program 1 times [2023-11-29 03:09:11,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:11,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27154576] [2023-11-29 03:09:11,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:11,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:11,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:09:11,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673757130] [2023-11-29 03:09:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:11,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:09:11,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:09:11,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:09:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:11,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:09:11,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:09:21,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:09:21,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:09:21,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:21,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27154576] [2023-11-29 03:09:21,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:09:21,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673757130] [2023-11-29 03:09:21,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673757130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:09:21,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:09:21,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:09:21,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082678291] [2023-11-29 03:09:21,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:21,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:09:21,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:21,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:09:21,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:09:21,806 INFO L87 Difference]: Start difference. First operand 89 states and 144 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:22,594 INFO L93 Difference]: Finished difference Result 260 states and 419 transitions. [2023-11-29 03:09:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:09:22,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-11-29 03:09:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:22,598 INFO L225 Difference]: With dead ends: 260 [2023-11-29 03:09:22,599 INFO L226 Difference]: Without dead ends: 172 [2023-11-29 03:09:22,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:09:22,601 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 118 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:22,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 400 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:09:22,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-29 03:09:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 117. [2023-11-29 03:09:22,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 83 states have (on average 1.5301204819277108) internal successors, (127), 83 states have internal predecessors, (127), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:09:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 191 transitions. [2023-11-29 03:09:22,621 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 191 transitions. Word has length 192 [2023-11-29 03:09:22,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:22,622 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 191 transitions. [2023-11-29 03:09:22,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 191 transitions. [2023-11-29 03:09:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:09:22,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:22,625 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:22,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:09:22,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:22,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:22,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1606743882, now seen corresponding path program 1 times [2023-11-29 03:09:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:22,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44357967] [2023-11-29 03:09:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:22,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:09:22,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136707516] [2023-11-29 03:09:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:22,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:22,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:09:22,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:09:22,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:09:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:23,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:09:23,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:09:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:09:29,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:09:29,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:29,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44357967] [2023-11-29 03:09:29,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:09:29,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136707516] [2023-11-29 03:09:29,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136707516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:09:29,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:09:29,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:09:29,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742188046] [2023-11-29 03:09:29,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:29,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:09:29,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:29,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:09:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:09:29,119 INFO L87 Difference]: Start difference. First operand 117 states and 191 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:29,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:29,787 INFO L93 Difference]: Finished difference Result 288 states and 457 transitions. [2023-11-29 03:09:29,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:09:29,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-11-29 03:09:29,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:29,789 INFO L225 Difference]: With dead ends: 288 [2023-11-29 03:09:29,789 INFO L226 Difference]: Without dead ends: 172 [2023-11-29 03:09:29,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:09:29,791 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 115 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:29,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 425 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:09:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-29 03:09:29,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 112. [2023-11-29 03:09:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 78 states have (on average 1.5256410256410255) internal successors, (119), 78 states have internal predecessors, (119), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:09:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 183 transitions. [2023-11-29 03:09:29,803 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 183 transitions. Word has length 192 [2023-11-29 03:09:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:29,804 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 183 transitions. [2023-11-29 03:09:29,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 183 transitions. [2023-11-29 03:09:29,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:09:29,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:29,805 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:29,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:09:30,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:30,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:30,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2028636814, now seen corresponding path program 1 times [2023-11-29 03:09:30,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:30,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580825562] [2023-11-29 03:09:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:30,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:30,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:09:30,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207394654] [2023-11-29 03:09:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:30,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:30,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:09:30,036 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:09:30,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:09:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:30,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:09:30,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:09:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:09:39,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:09:39,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580825562] [2023-11-29 03:09:39,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:09:39,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207394654] [2023-11-29 03:09:39,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207394654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:09:39,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:09:39,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:09:39,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774364176] [2023-11-29 03:09:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:39,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:09:39,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:09:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:09:39,134 INFO L87 Difference]: Start difference. First operand 112 states and 183 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:39,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:39,455 INFO L93 Difference]: Finished difference Result 302 states and 489 transitions. [2023-11-29 03:09:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:09:39,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-11-29 03:09:39,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:39,458 INFO L225 Difference]: With dead ends: 302 [2023-11-29 03:09:39,458 INFO L226 Difference]: Without dead ends: 191 [2023-11-29 03:09:39,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:09:39,459 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 142 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:39,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 558 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:09:39,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-29 03:09:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 116. [2023-11-29 03:09:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 82 states have (on average 1.524390243902439) internal successors, (125), 82 states have internal predecessors, (125), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:09:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 189 transitions. [2023-11-29 03:09:39,470 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 189 transitions. Word has length 192 [2023-11-29 03:09:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:39,471 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 189 transitions. [2023-11-29 03:09:39,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 189 transitions. [2023-11-29 03:09:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:09:39,472 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:39,473 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:39,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 03:09:39,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 03:09:39,673 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:39,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:39,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1348578444, now seen corresponding path program 1 times [2023-11-29 03:09:39,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:39,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783020057] [2023-11-29 03:09:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:39,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:39,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:09:39,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668793914] [2023-11-29 03:09:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:39,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:39,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:09:39,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:09:39,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:09:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:39,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:09:39,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:09:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:09:42,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:09:42,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783020057] [2023-11-29 03:09:42,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:09:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668793914] [2023-11-29 03:09:42,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668793914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:09:42,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:09:42,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:09:42,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415736451] [2023-11-29 03:09:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:42,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:09:42,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:42,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:09:42,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:09:42,934 INFO L87 Difference]: Start difference. First operand 116 states and 189 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:43,256 INFO L93 Difference]: Finished difference Result 306 states and 486 transitions. [2023-11-29 03:09:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:09:43,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-11-29 03:09:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:43,259 INFO L225 Difference]: With dead ends: 306 [2023-11-29 03:09:43,260 INFO L226 Difference]: Without dead ends: 191 [2023-11-29 03:09:43,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:09:43,261 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 113 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:43,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 602 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:09:43,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-29 03:09:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 108. [2023-11-29 03:09:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:09:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 175 transitions. [2023-11-29 03:09:43,278 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 175 transitions. Word has length 192 [2023-11-29 03:09:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:43,278 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 175 transitions. [2023-11-29 03:09:43,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 175 transitions. [2023-11-29 03:09:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:09:43,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:43,280 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:43,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:09:43,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 03:09:43,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:43,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash -158274072, now seen corresponding path program 1 times [2023-11-29 03:09:43,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:43,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718710318] [2023-11-29 03:09:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:43,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:43,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:09:43,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726547772] [2023-11-29 03:09:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:43,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:43,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:09:43,514 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:09:43,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:09:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:43,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:09:43,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:09:51,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:09:51,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:09:51,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718710318] [2023-11-29 03:09:51,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:09:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726547772] [2023-11-29 03:09:51,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726547772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:09:51,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:09:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:09:51,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706117689] [2023-11-29 03:09:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:51,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:09:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:09:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:09:51,923 INFO L87 Difference]: Start difference. First operand 108 states and 175 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:53,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:53,189 INFO L93 Difference]: Finished difference Result 323 states and 508 transitions. [2023-11-29 03:09:53,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:09:53,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:09:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:53,193 INFO L225 Difference]: With dead ends: 323 [2023-11-29 03:09:53,193 INFO L226 Difference]: Without dead ends: 216 [2023-11-29 03:09:53,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:09:53,195 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 215 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:53,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 377 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:09:53,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-11-29 03:09:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 130. [2023-11-29 03:09:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 96 states have internal predecessors, (148), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:09:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 212 transitions. [2023-11-29 03:09:53,211 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 212 transitions. Word has length 193 [2023-11-29 03:09:53,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:53,212 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 212 transitions. [2023-11-29 03:09:53,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:09:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 212 transitions. [2023-11-29 03:09:53,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:09:53,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:53,214 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:53,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:09:53,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:53,415 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:53,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash 521784298, now seen corresponding path program 1 times [2023-11-29 03:09:53,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963493101] [2023-11-29 03:09:53,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:53,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:53,440 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:09:53,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500818872] [2023-11-29 03:09:53,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:53,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:09:53,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:09:53,442 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:09:53,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:09:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:53,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:09:53,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:00,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:00,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:00,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963493101] [2023-11-29 03:10:00,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:00,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500818872] [2023-11-29 03:10:00,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500818872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:00,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:00,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:10:00,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372138524] [2023-11-29 03:10:00,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:00,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:10:00,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:00,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:10:00,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:10:00,620 INFO L87 Difference]: Start difference. First operand 130 states and 212 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:01,927 INFO L93 Difference]: Finished difference Result 350 states and 546 transitions. [2023-11-29 03:10:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:10:01,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:01,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:01,931 INFO L225 Difference]: With dead ends: 350 [2023-11-29 03:10:01,931 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 03:10:01,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:10:01,932 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 145 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:01,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 469 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:10:01,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 03:10:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 127. [2023-11-29 03:10:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 93 states have (on average 1.5376344086021505) internal successors, (143), 93 states have internal predecessors, (143), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 207 transitions. [2023-11-29 03:10:01,946 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 207 transitions. Word has length 193 [2023-11-29 03:10:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:01,946 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 207 transitions. [2023-11-29 03:10:01,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 207 transitions. [2023-11-29 03:10:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:10:01,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:01,949 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:01,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:10:02,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:02,150 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:02,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash -709455260, now seen corresponding path program 1 times [2023-11-29 03:10:02,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:02,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217405655] [2023-11-29 03:10:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:02,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:02,173 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:02,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429236125] [2023-11-29 03:10:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:02,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:02,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:02,175 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:02,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:10:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:02,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:10:02,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:11,937 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:11,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:11,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217405655] [2023-11-29 03:10:11,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:11,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429236125] [2023-11-29 03:10:11,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429236125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:11,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:11,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:10:11,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31502428] [2023-11-29 03:10:11,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:11,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:10:11,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:11,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:10:11,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:10:11,940 INFO L87 Difference]: Start difference. First operand 127 states and 207 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:12,899 INFO L93 Difference]: Finished difference Result 337 states and 529 transitions. [2023-11-29 03:10:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:10:12,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:12,902 INFO L225 Difference]: With dead ends: 337 [2023-11-29 03:10:12,902 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 03:10:12,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:10:12,903 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 129 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:12,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 496 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:10:12,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 03:10:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 143. [2023-11-29 03:10:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 109 states have (on average 1.5504587155963303) internal successors, (169), 109 states have internal predecessors, (169), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 233 transitions. [2023-11-29 03:10:12,918 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 233 transitions. Word has length 193 [2023-11-29 03:10:12,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:12,919 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 233 transitions. [2023-11-29 03:10:12,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 233 transitions. [2023-11-29 03:10:12,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:10:12,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:12,921 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:12,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:10:13,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:10:13,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:13,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash -29396890, now seen corresponding path program 1 times [2023-11-29 03:10:13,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:13,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024025272] [2023-11-29 03:10:13,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:13,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:13,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:13,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470895146] [2023-11-29 03:10:13,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:13,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:13,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:13,160 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:13,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:10:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:13,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:10:13,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:18,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:18,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:18,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024025272] [2023-11-29 03:10:18,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:18,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470895146] [2023-11-29 03:10:18,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470895146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:18,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:18,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:10:18,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415147641] [2023-11-29 03:10:18,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:18,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:10:18,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:18,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:10:18,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:10:18,802 INFO L87 Difference]: Start difference. First operand 143 states and 233 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:20,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:20,023 INFO L93 Difference]: Finished difference Result 353 states and 551 transitions. [2023-11-29 03:10:20,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:10:20,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:20,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:20,026 INFO L225 Difference]: With dead ends: 353 [2023-11-29 03:10:20,026 INFO L226 Difference]: Without dead ends: 211 [2023-11-29 03:10:20,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:10:20,027 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 107 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:20,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 721 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:10:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-29 03:10:20,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 140. [2023-11-29 03:10:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 106 states have (on average 1.5566037735849056) internal successors, (165), 106 states have internal predecessors, (165), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 229 transitions. [2023-11-29 03:10:20,038 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 229 transitions. Word has length 193 [2023-11-29 03:10:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:20,039 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 229 transitions. [2023-11-29 03:10:20,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 229 transitions. [2023-11-29 03:10:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:10:20,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:20,040 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:20,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:10:20,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:10:20,241 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:20,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash -745080086, now seen corresponding path program 1 times [2023-11-29 03:10:20,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:20,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301219428] [2023-11-29 03:10:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:20,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:20,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:20,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202395861] [2023-11-29 03:10:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:20,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:20,270 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:20,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:10:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:20,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:10:20,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:27,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:27,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:27,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301219428] [2023-11-29 03:10:27,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:27,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202395861] [2023-11-29 03:10:27,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202395861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:27,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:27,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:10:27,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041967130] [2023-11-29 03:10:27,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:27,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:10:27,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:27,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:10:27,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:10:27,997 INFO L87 Difference]: Start difference. First operand 140 states and 229 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:29,049 INFO L93 Difference]: Finished difference Result 356 states and 563 transitions. [2023-11-29 03:10:29,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:10:29,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:29,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:29,051 INFO L225 Difference]: With dead ends: 356 [2023-11-29 03:10:29,051 INFO L226 Difference]: Without dead ends: 217 [2023-11-29 03:10:29,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:10:29,053 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 156 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:29,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 443 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:10:29,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-29 03:10:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 138. [2023-11-29 03:10:29,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 104 states have (on average 1.5384615384615385) internal successors, (160), 104 states have internal predecessors, (160), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:29,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 224 transitions. [2023-11-29 03:10:29,067 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 224 transitions. Word has length 193 [2023-11-29 03:10:29,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:29,068 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 224 transitions. [2023-11-29 03:10:29,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 224 transitions. [2023-11-29 03:10:29,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:10:29,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:29,069 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:29,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:10:29,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 03:10:29,270 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:29,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash -65021716, now seen corresponding path program 1 times [2023-11-29 03:10:29,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:29,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20599300] [2023-11-29 03:10:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:29,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:29,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:29,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797293067] [2023-11-29 03:10:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:29,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:29,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:29,294 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:29,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:10:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:29,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:10:29,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:34,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:34,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:34,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20599300] [2023-11-29 03:10:34,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:34,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797293067] [2023-11-29 03:10:34,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797293067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:34,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:34,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:10:34,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659394952] [2023-11-29 03:10:34,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:34,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:10:34,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:10:34,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:10:34,722 INFO L87 Difference]: Start difference. First operand 138 states and 224 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:35,894 INFO L93 Difference]: Finished difference Result 354 states and 554 transitions. [2023-11-29 03:10:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:10:35,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:35,897 INFO L225 Difference]: With dead ends: 354 [2023-11-29 03:10:35,897 INFO L226 Difference]: Without dead ends: 217 [2023-11-29 03:10:35,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:10:35,899 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 129 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:35,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 713 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:10:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-29 03:10:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 135. [2023-11-29 03:10:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 101 states have (on average 1.5346534653465347) internal successors, (155), 101 states have internal predecessors, (155), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 219 transitions. [2023-11-29 03:10:35,913 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 219 transitions. Word has length 193 [2023-11-29 03:10:35,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:35,914 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 219 transitions. [2023-11-29 03:10:35,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:35,915 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 219 transitions. [2023-11-29 03:10:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:10:35,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:35,916 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:35,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:10:36,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 03:10:36,117 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:36,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:36,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1296261274, now seen corresponding path program 1 times [2023-11-29 03:10:36,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:36,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877886618] [2023-11-29 03:10:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:36,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:36,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:36,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140811103] [2023-11-29 03:10:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:36,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:36,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:36,139 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:36,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:10:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:36,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:10:36,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:41,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877886618] [2023-11-29 03:10:41,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:41,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140811103] [2023-11-29 03:10:41,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140811103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:41,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:41,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:10:41,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836603624] [2023-11-29 03:10:41,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:41,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:10:41,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:10:41,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:10:41,828 INFO L87 Difference]: Start difference. First operand 135 states and 219 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:42,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:42,214 INFO L93 Difference]: Finished difference Result 353 states and 552 transitions. [2023-11-29 03:10:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:10:42,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:42,217 INFO L225 Difference]: With dead ends: 353 [2023-11-29 03:10:42,217 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 03:10:42,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:10:42,218 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 142 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:42,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 583 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:10:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 03:10:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 132. [2023-11-29 03:10:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 98 states have (on average 1.510204081632653) internal successors, (148), 98 states have internal predecessors, (148), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 212 transitions. [2023-11-29 03:10:42,234 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 212 transitions. Word has length 193 [2023-11-29 03:10:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:42,235 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 212 transitions. [2023-11-29 03:10:42,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 212 transitions. [2023-11-29 03:10:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 03:10:42,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:42,237 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:42,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:10:42,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:10:42,438 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:42,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash -616202904, now seen corresponding path program 1 times [2023-11-29 03:10:42,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609439302] [2023-11-29 03:10:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:42,461 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:42,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591882795] [2023-11-29 03:10:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:42,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:42,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:42,463 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:42,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:10:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:42,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:10:42,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:45,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609439302] [2023-11-29 03:10:45,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591882795] [2023-11-29 03:10:45,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591882795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:45,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:45,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:10:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030553791] [2023-11-29 03:10:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:45,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:10:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:10:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:10:45,126 INFO L87 Difference]: Start difference. First operand 132 states and 212 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:45,636 INFO L93 Difference]: Finished difference Result 350 states and 541 transitions. [2023-11-29 03:10:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:10:45,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 193 [2023-11-29 03:10:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:45,639 INFO L225 Difference]: With dead ends: 350 [2023-11-29 03:10:45,639 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 03:10:45,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:10:45,641 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 115 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:45,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 812 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:10:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 03:10:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 126. [2023-11-29 03:10:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 92 states have (on average 1.5) internal successors, (138), 92 states have internal predecessors, (138), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 202 transitions. [2023-11-29 03:10:45,658 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 202 transitions. Word has length 193 [2023-11-29 03:10:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:45,659 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 202 transitions. [2023-11-29 03:10:45,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 202 transitions. [2023-11-29 03:10:45,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 03:10:45,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:45,661 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:45,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:10:45,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:10:45,862 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:45,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1130607839, now seen corresponding path program 1 times [2023-11-29 03:10:45,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:45,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883552418] [2023-11-29 03:10:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:45,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:45,884 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:45,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894253980] [2023-11-29 03:10:45,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:45,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:45,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:45,886 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:45,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:10:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:46,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 03:10:46,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 03:10:46,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:46,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:46,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883552418] [2023-11-29 03:10:46,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:10:46,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894253980] [2023-11-29 03:10:46,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894253980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:46,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:46,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:10:46,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147554766] [2023-11-29 03:10:46,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:46,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:10:46,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:46,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:10:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:10:46,045 INFO L87 Difference]: Start difference. First operand 126 states and 202 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:46,095 INFO L93 Difference]: Finished difference Result 295 states and 465 transitions. [2023-11-29 03:10:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:10:46,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 194 [2023-11-29 03:10:46,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:46,097 INFO L225 Difference]: With dead ends: 295 [2023-11-29 03:10:46,098 INFO L226 Difference]: Without dead ends: 170 [2023-11-29 03:10:46,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:10:46,099 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 69 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:46,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 236 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:10:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-29 03:10:46,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2023-11-29 03:10:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 114 states have (on average 1.4035087719298245) internal successors, (160), 115 states have internal predecessors, (160), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 03:10:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 260 transitions. [2023-11-29 03:10:46,125 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 260 transitions. Word has length 194 [2023-11-29 03:10:46,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:46,126 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 260 transitions. [2023-11-29 03:10:46,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-11-29 03:10:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 260 transitions. [2023-11-29 03:10:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 03:10:46,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:46,128 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:46,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:10:46,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:10:46,329 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:46,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2030393177, now seen corresponding path program 1 times [2023-11-29 03:10:46,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:46,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358831337] [2023-11-29 03:10:46,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:46,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:46,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:10:46,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66031750] [2023-11-29 03:10:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:46,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:46,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:46,354 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:46,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:10:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:10:46,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:10:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:10:46,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:10:46,625 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:10:46,626 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:10:46,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:10:46,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:10:46,831 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:46,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:10:46,923 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 03:10:46,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 03:10:46,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 03:10:46,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 03:10:46,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated [2023-11-29 03:10:46,925 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 03:10:46,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:10:46 BoogieIcfgContainer [2023-11-29 03:10:46,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:10:46,950 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:10:46,950 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:10:46,950 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:10:46,951 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:08:10" (3/4) ... [2023-11-29 03:10:46,952 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:10:46,953 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:10:46,954 INFO L158 Benchmark]: Toolchain (without parser) took 157364.47ms. Allocated memory was 153.1MB in the beginning and 717.2MB in the end (delta: 564.1MB). Free memory was 113.9MB in the beginning and 464.4MB in the end (delta: -350.4MB). Peak memory consumption was 214.8MB. Max. memory is 16.1GB. [2023-11-29 03:10:46,954 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:10:46,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.58ms. Allocated memory is still 153.1MB. Free memory was 113.9MB in the beginning and 97.7MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:10:46,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.53ms. Allocated memory is still 153.1MB. Free memory was 97.7MB in the beginning and 91.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:10:46,955 INFO L158 Benchmark]: Boogie Preprocessor took 74.96ms. Allocated memory is still 153.1MB. Free memory was 91.4MB in the beginning and 78.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 03:10:46,955 INFO L158 Benchmark]: RCFGBuilder took 613.18ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 78.9MB in the beginning and 162.1MB in the end (delta: -83.2MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2023-11-29 03:10:46,956 INFO L158 Benchmark]: TraceAbstraction took 156283.68ms. Allocated memory was 197.1MB in the beginning and 717.2MB in the end (delta: 520.1MB). Free memory was 161.1MB in the beginning and 465.4MB in the end (delta: -304.3MB). Peak memory consumption was 216.8MB. Max. memory is 16.1GB. [2023-11-29 03:10:46,956 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 717.2MB. Free memory was 465.4MB in the beginning and 464.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:10:46,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 153.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.58ms. Allocated memory is still 153.1MB. Free memory was 113.9MB in the beginning and 97.7MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.53ms. Allocated memory is still 153.1MB. Free memory was 97.7MB in the beginning and 91.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.96ms. Allocated memory is still 153.1MB. Free memory was 91.4MB in the beginning and 78.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 613.18ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 78.9MB in the beginning and 162.1MB in the end (delta: -83.2MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 156283.68ms. Allocated memory was 197.1MB in the beginning and 717.2MB in the end (delta: 520.1MB). Free memory was 161.1MB in the beginning and 465.4MB in the end (delta: -304.3MB). Peak memory consumption was 216.8MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 717.2MB. Free memory was 465.4MB in the beginning and 464.4MB in the end (delta: 1.0MB). 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~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 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 149, overapproximation of someBinaryFLOATComparisonOperation at line 149. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] unsigned char var_1_2 = 8; [L24] unsigned char var_1_3 = 50; [L25] unsigned short int var_1_4 = 1; [L26] unsigned short int var_1_5 = 16; [L27] unsigned char var_1_6 = 4; [L28] unsigned char var_1_7 = 2; [L29] unsigned char var_1_8 = 128; [L30] unsigned char var_1_9 = 0; [L31] unsigned char var_1_10 = 100; [L32] signed short int var_1_11 = 10; [L33] unsigned char var_1_12 = 1; [L34] unsigned char var_1_13 = 1; [L35] unsigned char var_1_14 = 0; [L36] signed long int var_1_15 = 128; [L37] unsigned char var_1_16 = 128; [L38] unsigned char var_1_17 = 5; [L39] double var_1_18 = 3.6; [L40] double var_1_19 = 31.45; [L41] float var_1_20 = 50.25; [L42] float var_1_21 = 9.8; [L43] float var_1_22 = 4.65; [L44] float var_1_23 = 99.65; [L45] unsigned char var_1_24 = 32; [L153] isInitial = 1 [L154] FCALL initially() [L155] COND TRUE 1 [L156] FCALL updateLastVariables() [L157] CALL updateVariables() [L95] var_1_2 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L96] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L97] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L97] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_3=50, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L98] var_1_3 = __VERIFIER_nondet_uchar() [L99] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L99] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L100] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L100] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L101] var_1_4 = __VERIFIER_nondet_ushort() [L102] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L102] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L103] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L103] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=16, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L104] var_1_5 = __VERIFIER_nondet_ushort() [L105] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L105] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L106] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L106] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=2, var_1_8=128, var_1_9=0] [L107] var_1_7 = __VERIFIER_nondet_uchar() [L108] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_8=128, var_1_9=0] [L108] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_8=128, var_1_9=0] [L109] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=128, var_1_9=0] [L109] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=128, var_1_9=0] [L110] var_1_8 = __VERIFIER_nondet_uchar() [L111] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_9=0] [L111] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_9=0] [L112] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L112] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L113] var_1_9 = __VERIFIER_nondet_uchar() [L114] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2] [L114] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2] [L115] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L115] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=100, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L116] var_1_10 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L117] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L118] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L118] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L119] var_1_12 = __VERIFIER_nondet_uchar() [L120] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L120] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L121] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L121] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L122] var_1_13 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L123] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L124] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L124] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L125] var_1_14 = __VERIFIER_nondet_uchar() [L126] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L126] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L127] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L127] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L128] var_1_16 = __VERIFIER_nondet_uchar() [L129] CALL assume_abort_if_not(var_1_16 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L129] RET assume_abort_if_not(var_1_16 >= 127) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L130] CALL assume_abort_if_not(var_1_16 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L130] RET assume_abort_if_not(var_1_16 <= 255) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=5, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L131] var_1_17 = __VERIFIER_nondet_uchar() [L132] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L132] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L133] CALL assume_abort_if_not(var_1_17 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L133] RET assume_abort_if_not(var_1_17 <= 127) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_19=629/20, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L134] var_1_19 = __VERIFIER_nondet_double() [L135] CALL assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L135] RET assume_abort_if_not((var_1_19 >= -922337.2036854765600e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 9223372.036854765600e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_21=49/5, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L136] var_1_21 = __VERIFIER_nondet_float() [L137] CALL assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L137] RET assume_abort_if_not((var_1_21 >= -461168.6018427382800e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 4611686.018427382800e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_22=93/20, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L138] var_1_22 = __VERIFIER_nondet_float() [L139] CALL assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L139] RET assume_abort_if_not((var_1_22 >= -461168.6018427382800e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 4611686.018427382800e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_23=1993/20, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L140] var_1_23 = __VERIFIER_nondet_float() [L141] CALL assume_abort_if_not((var_1_23 >= -461168.6018427382800e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 4611686.018427382800e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L141] RET assume_abort_if_not((var_1_23 >= -461168.6018427382800e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 4611686.018427382800e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_24=32, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L142] var_1_24 = __VERIFIER_nondet_uchar() [L143] CALL assume_abort_if_not(var_1_24 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L143] RET assume_abort_if_not(var_1_24 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L144] CALL assume_abort_if_not(var_1_24 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L144] RET assume_abort_if_not(var_1_24 <= 255) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=4, var_1_20=201/4, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L157] RET updateVariables() [L158] CALL step() [L49] COND TRUE var_1_2 <= var_1_3 [L50] var_1_1 = ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=4, var_1_7=1, var_1_8=2, var_1_9=0] [L52] COND TRUE var_1_1 < 5 [L53] var_1_6 = ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))) VAL [isInitial=1, var_1_10=1, var_1_11=10, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L57] COND FALSE !(\read(var_1_12)) [L68] var_1_11 = var_1_2 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=128, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L70] COND TRUE var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17) [L71] var_1_15 = (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L75] EXPR 200 << var_1_1 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=201/4, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L75] COND FALSE !(((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) [L78] COND FALSE !(\read(var_1_13)) [L91] var_1_20 = var_1_23 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L158] RET step() [L159] CALL, EXPR property() [L149] EXPR (((((var_1_2 <= var_1_3) ? (var_1_1 == ((unsigned short int) ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))))) : 1) && ((var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((var_1_4 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + var_1_6))) ? (var_1_8) : ((var_1_10 + var_1_6)))))) : (var_1_11 == ((signed short int) var_1_3))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) var_1_2)))) && ((var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_6)))) && ((((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) ? (var_1_18 == ((double) var_1_19)) : 1) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L149] EXPR 200 << var_1_1 VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L149] EXPR (((((var_1_2 <= var_1_3) ? (var_1_1 == ((unsigned short int) ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))))) : 1) && ((var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((var_1_4 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + var_1_6))) ? (var_1_8) : ((var_1_10 + var_1_6)))))) : (var_1_11 == ((signed short int) var_1_3))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) var_1_2)))) && ((var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_6)))) && ((((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) ? (var_1_18 == ((double) var_1_19)) : 1) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L149-L150] return ((((((var_1_2 <= var_1_3) ? (var_1_1 == ((unsigned short int) ((((((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) > (var_1_5)) ? (((((var_1_2) < (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))))) : (var_1_5))))) : 1) && ((var_1_1 < 5) ? (var_1_6 == ((unsigned char) ((((((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) > (var_1_10)) ? (((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) < (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9)))) : (var_1_10))))) : (var_1_6 == ((unsigned char) var_1_10)))) && (var_1_12 ? (var_1_13 ? (((var_1_4 > (~ var_1_10)) && var_1_14) ? (var_1_11 == ((signed short int) ((((var_1_8) > ((var_1_10 + var_1_6))) ? (var_1_8) : ((var_1_10 + var_1_6)))))) : (var_1_11 == ((signed short int) var_1_3))) : (var_1_11 == ((signed short int) var_1_8))) : (var_1_11 == ((signed short int) var_1_2)))) && ((var_1_2 <= (((((128) > (var_1_16)) ? (128) : (var_1_16))) - var_1_17)) ? (var_1_15 == ((signed long int) (((((var_1_5 - var_1_2)) > (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7))))) ? ((var_1_5 - var_1_2)) : (((((var_1_8) < (var_1_7)) ? (var_1_8) : (var_1_7)))))))) : (var_1_15 == ((signed long int) var_1_6)))) && ((((200 << var_1_1) * (var_1_17 * var_1_7)) < var_1_11) ? (var_1_18 == ((double) var_1_19)) : 1)) && (var_1_13 ? (var_1_14 ? (var_1_12 ? (var_1_20 == ((float) (var_1_21 + ((((var_1_22) > (var_1_23)) ? (var_1_22) : (var_1_23)))))) : 1) : ((var_1_24 <= 0) ? (var_1_20 == ((float) var_1_19)) : (var_1_20 == ((float) var_1_22)))) : (var_1_20 == ((float) var_1_23))) ; [L159] RET, EXPR property() [L159] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=0, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=128, var_1_17=0, var_1_18=18/5, var_1_1=0, var_1_20=2, var_1_23=2, var_1_24=0, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=2, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 156.1s, OverallIterations: 17, TraceHistogramMax: 32, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1991 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1991 mSDsluCounter, 7716 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5501 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2752 IncrementalHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 2215 mSDtfsCounter, 2752 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3513 GetRequests, 3343 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=16, InterpolantAutomatonStates: 178, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 1013 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 134.6s InterpolantComputationTime, 3468 NumberOfCodeBlocks, 3468 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3448 ConstructedInterpolants, 0 QuantifiedInterpolants, 33961 SizeOfPredicates, 259 NumberOfNonLiveVariables, 6619 ConjunctsInSsa, 214 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 35466/35712 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 03:10:47,175 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-11-29 03:10:47,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 49a7910a640b9ef8dea3798033f5d3f27279f235dab211562519047fb85b8da0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:10:48,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:10:49,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 03:10:49,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:10:49,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:10:49,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:10:49,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:10:49,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:10:49,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:10:49,107 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:10:49,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:10:49,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:10:49,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:10:49,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:10:49,110 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:10:49,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:10:49,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:10:49,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:10:49,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:10:49,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:10:49,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:10:49,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:10:49,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:10:49,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:10:49,116 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:10:49,117 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:10:49,117 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:10:49,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:10:49,118 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:10:49,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:10:49,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:10:49,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:10:49,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:10:49,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:10:49,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:10:49,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:10:49,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:10:49,121 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:10:49,122 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:10:49,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:10:49,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:10:49,122 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:10:49,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:10:49,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:10:49,123 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:10:49,123 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_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49a7910a640b9ef8dea3798033f5d3f27279f235dab211562519047fb85b8da0 [2023-11-29 03:10:49,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:10:49,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:10:49,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:10:49,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:10:49,426 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:10:49,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i [2023-11-29 03:10:52,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:10:52,493 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:10:52,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i [2023-11-29 03:10:52,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data/4574ad617/92c5a6b204bb482ab529e24d2686ae7e/FLAG618f18ef7 [2023-11-29 03:10:52,523 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/data/4574ad617/92c5a6b204bb482ab529e24d2686ae7e [2023-11-29 03:10:52,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:10:52,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:10:52,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:10:52,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:10:52,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:10:52,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:52,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d413af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52, skipping insertion in model container [2023-11-29 03:10:52,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:52,576 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:10:52,747 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_ff8a5887-1440-4f1e-99e6-618d0f168a00/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i[913,926] [2023-11-29 03:10:52,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:10:52,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:10:52,859 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_ff8a5887-1440-4f1e-99e6-618d0f168a00/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-28.i[913,926] [2023-11-29 03:10:52,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:10:52,919 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:10:52,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52 WrapperNode [2023-11-29 03:10:52,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:10:52,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:10:52,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:10:52,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:10:52,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:52,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:52,980 INFO L138 Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-29 03:10:52,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:10:52,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:10:52,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:10:52,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:10:52,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:52,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,015 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]. [2023-11-29 03:10:53,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,044 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:10:53,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:10:53,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:10:53,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:10:53,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (1/1) ... [2023-11-29 03:10:53,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:10:53,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:53,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:10:53,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:10:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:10:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:10:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:10:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:10:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:10:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:10:53,201 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:10:53,204 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:10:54,229 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:10:54,276 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:10:54,276 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:10:54,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:10:54 BoogieIcfgContainer [2023-11-29 03:10:54,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:10:54,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:10:54,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:10:54,284 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:10:54,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:10:52" (1/3) ... [2023-11-29 03:10:54,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be7c7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:10:54, skipping insertion in model container [2023-11-29 03:10:54,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:10:52" (2/3) ... [2023-11-29 03:10:54,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be7c7c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:10:54, skipping insertion in model container [2023-11-29 03:10:54,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:10:54" (3/3) ... [2023-11-29 03:10:54,287 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-28.i [2023-11-29 03:10:54,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:10:54,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:10:54,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:10:54,371 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;@30a1d05d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:10:54,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:10:54,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:54,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 03:10:54,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:54,397 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:54,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:54,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:54,404 INFO L85 PathProgramCache]: Analyzing trace with hash -572033149, now seen corresponding path program 1 times [2023-11-29 03:10:54,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:10:54,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095174590] [2023-11-29 03:10:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:54,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:10:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:10:54,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:10:54,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 03:10:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:10:54,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 974 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2023-11-29 03:10:54,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:54,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:10:54,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095174590] [2023-11-29 03:10:54,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095174590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:54,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:10:54,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:10:54,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774253975] [2023-11-29 03:10:54,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:54,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:10:54,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:10:54,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:10:54,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:10:54,933 INFO L87 Difference]: Start difference. First operand has 74 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 03:10:55,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:55,501 INFO L93 Difference]: Finished difference Result 145 states and 268 transitions. [2023-11-29 03:10:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:10:55,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 189 [2023-11-29 03:10:55,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:55,522 INFO L225 Difference]: With dead ends: 145 [2023-11-29 03:10:55,522 INFO L226 Difference]: Without dead ends: 72 [2023-11-29 03:10:55,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:10:55,532 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:55,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:10:55,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-29 03:10:55,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-29 03:10:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 states have internal predecessors, (50), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 03:10:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 114 transitions. [2023-11-29 03:10:55,593 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 114 transitions. Word has length 189 [2023-11-29 03:10:55,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:55,594 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 114 transitions. [2023-11-29 03:10:55,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-29 03:10:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 114 transitions. [2023-11-29 03:10:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 03:10:55,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:55,601 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:55,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:10:55,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:10:55,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:55,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:55,803 INFO L85 PathProgramCache]: Analyzing trace with hash 473665403, now seen corresponding path program 1 times [2023-11-29 03:10:55,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:10:55,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426449856] [2023-11-29 03:10:55,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:55,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:10:55,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:10:55,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:10:55,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8a5887-1440-4f1e-99e6-618d0f168a00/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 03:10:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:56,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:10:56,188 INFO L285 TraceCheckSpWp]: Computing forward predicates...