./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 801154599e4f83be702d4edf57ef1684d9181253862a9d822c36129a43e2867e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:01:51,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:01:51,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:01:51,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:01:51,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:01:51,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:01:51,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:01:51,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:01:51,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:01:51,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:01:51,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:01:51,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:01:51,748 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:01:51,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:01:51,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:01:51,750 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:01:51,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:01:51,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:01:51,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:01:51,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:01:51,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:01:51,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:01:51,756 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:01:51,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:01:51,757 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:01:51,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:01:51,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:01:51,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:01:51,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:51,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:01:51,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:01:51,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:01:51,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:01:51,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:01:51,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:01:51,768 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:01:51,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:01:51,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:01:51,769 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:01:51,769 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_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 801154599e4f83be702d4edf57ef1684d9181253862a9d822c36129a43e2867e [2023-11-06 22:01:52,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:01:52,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:01:52,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:01:52,200 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:01:52,201 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:01:52,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i [2023-11-06 22:01:55,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:01:56,017 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:01:56,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i [2023-11-06 22:01:56,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/data/88c29184b/eb0f4f20df8c4c9eb3087a358b03c9a9/FLAGad0e5e954 [2023-11-06 22:01:56,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/data/88c29184b/eb0f4f20df8c4c9eb3087a358b03c9a9 [2023-11-06 22:01:56,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:01:56,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:01:56,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:56,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:01:56,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:01:56,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7492b962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56, skipping insertion in model container [2023-11-06 22:01:56,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,138 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:01:56,343 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_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i[915,928] [2023-11-06 22:01:56,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:56,431 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:01:56,447 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_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i[915,928] [2023-11-06 22:01:56,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:01:56,516 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:01:56,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56 WrapperNode [2023-11-06 22:01:56,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:01:56,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:56,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:01:56,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:01:56,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,619 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 505 [2023-11-06 22:01:56,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:01:56,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:01:56,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:01:56,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:01:56,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:01:56,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:01:56,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:01:56,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:01:56,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (1/1) ... [2023-11-06 22:01:56,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:01:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:56,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:01:56,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:01:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:01:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:01:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 22:01:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 22:01:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:01:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-06 22:01:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:01:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:01:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:01:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:01:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:01:57,088 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:01:57,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:01:57,855 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:01:57,864 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:01:57,864 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:01:57,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:57 BoogieIcfgContainer [2023-11-06 22:01:57,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:01:57,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:01:57,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:01:57,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:01:57,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:01:56" (1/3) ... [2023-11-06 22:01:57,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f16b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:57, skipping insertion in model container [2023-11-06 22:01:57,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:01:56" (2/3) ... [2023-11-06 22:01:57,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f16b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:57, skipping insertion in model container [2023-11-06 22:01:57,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:57" (3/3) ... [2023-11-06 22:01:57,882 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-6.i [2023-11-06 22:01:57,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:01:57,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:01:57,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:01:57,971 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=LoopsAndPotentialCycles, 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;@7c557524, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:01:57,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:01:57,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:01:57,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-06 22:01:57,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:57,997 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:57,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:58,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:58,004 INFO L85 PathProgramCache]: Analyzing trace with hash -748983887, now seen corresponding path program 1 times [2023-11-06 22:01:58,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:58,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807035661] [2023-11-06 22:01:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:58,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:58,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807035661] [2023-11-06 22:01:58,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:01:58,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998700306] [2023-11-06 22:01:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:58,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:58,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:58,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:01:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:58,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:01:58,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-11-06 22:01:58,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:58,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998700306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:58,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:58,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:58,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518351803] [2023-11-06 22:01:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:58,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:01:58,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:01:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:01:58,899 INFO L87 Difference]: Start difference. First operand has 122 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:01:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:58,957 INFO L93 Difference]: Finished difference Result 237 states and 371 transitions. [2023-11-06 22:01:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:01:58,959 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2023-11-06 22:01:58,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:58,969 INFO L225 Difference]: With dead ends: 237 [2023-11-06 22:01:58,969 INFO L226 Difference]: Without dead ends: 118 [2023-11-06 22:01:58,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:01:58,978 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:58,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:01:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-06 22:01:59,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-06 22:01:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:01:59,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2023-11-06 22:01:59,042 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 172 transitions. Word has length 158 [2023-11-06 22:01:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:59,043 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 172 transitions. [2023-11-06 22:01:59,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:01:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 172 transitions. [2023-11-06 22:01:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-06 22:01:59,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:59,048 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:59,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:59,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-06 22:01:59,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:59,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash -249601713, now seen corresponding path program 1 times [2023-11-06 22:01:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:59,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640288084] [2023-11-06 22:01:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:59,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:59,451 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:01:59,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912634604] [2023-11-06 22:01:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:59,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:01:59,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:01:59,453 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:01:59,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:01:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:59,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:01:59,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:01:59,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:59,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:59,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640288084] [2023-11-06 22:01:59,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:01:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912634604] [2023-11-06 22:01:59,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912634604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:59,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:59,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:01:59,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766109022] [2023-11-06 22:01:59,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:59,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:01:59,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:59,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:01:59,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:01:59,896 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:01:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:59,989 INFO L93 Difference]: Finished difference Result 256 states and 375 transitions. [2023-11-06 22:01:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:01:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2023-11-06 22:01:59,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:59,997 INFO L225 Difference]: With dead ends: 256 [2023-11-06 22:02:00,000 INFO L226 Difference]: Without dead ends: 141 [2023-11-06 22:02:00,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:00,006 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 43 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:00,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 543 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:00,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-06 22:02:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 120. [2023-11-06 22:02:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:02:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 174 transitions. [2023-11-06 22:02:00,044 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 174 transitions. Word has length 158 [2023-11-06 22:02:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:00,048 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 174 transitions. [2023-11-06 22:02:00,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:02:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2023-11-06 22:02:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-06 22:02:00,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:00,059 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:00,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:00,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:00,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:00,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:00,267 INFO L85 PathProgramCache]: Analyzing trace with hash -214255510, now seen corresponding path program 1 times [2023-11-06 22:02:00,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:00,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125379600] [2023-11-06 22:02:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:00,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:00,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:00,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277789913] [2023-11-06 22:02:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:00,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:00,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:00,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:00,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:02:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:00,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:00,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:00,833 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:02:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:02:00,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:00,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:00,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125379600] [2023-11-06 22:02:00,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:00,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277789913] [2023-11-06 22:02:00,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277789913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:00,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:00,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:00,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587052345] [2023-11-06 22:02:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:00,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:00,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:00,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:00,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:00,851 INFO L87 Difference]: Start difference. First operand 120 states and 174 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:02:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:00,876 INFO L93 Difference]: Finished difference Result 237 states and 345 transitions. [2023-11-06 22:02:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:00,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2023-11-06 22:02:00,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:00,879 INFO L225 Difference]: With dead ends: 237 [2023-11-06 22:02:00,880 INFO L226 Difference]: Without dead ends: 120 [2023-11-06 22:02:00,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:00,882 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 2 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:00,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 334 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-06 22:02:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-06 22:02:00,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:02:00,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 173 transitions. [2023-11-06 22:02:00,916 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 173 transitions. Word has length 160 [2023-11-06 22:02:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:00,917 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 173 transitions. [2023-11-06 22:02:00,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:02:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 173 transitions. [2023-11-06 22:02:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-06 22:02:00,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:00,920 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:00,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:01,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:01,121 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:01,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:01,122 INFO L85 PathProgramCache]: Analyzing trace with hash 208446316, now seen corresponding path program 1 times [2023-11-06 22:02:01,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:01,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945047962] [2023-11-06 22:02:01,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:01,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:01,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:01,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980039317] [2023-11-06 22:02:01,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:01,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:01,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:01,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:01,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:02:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:01,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:01,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:01,586 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:02:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:02:01,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:01,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:01,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945047962] [2023-11-06 22:02:01,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:01,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980039317] [2023-11-06 22:02:01,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980039317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:01,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:01,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:01,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814347886] [2023-11-06 22:02:01,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:01,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:01,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:01,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:01,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:01,599 INFO L87 Difference]: Start difference. First operand 120 states and 173 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:02:01,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:01,616 INFO L93 Difference]: Finished difference Result 237 states and 343 transitions. [2023-11-06 22:02:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:01,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2023-11-06 22:02:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:01,620 INFO L225 Difference]: With dead ends: 237 [2023-11-06 22:02:01,620 INFO L226 Difference]: Without dead ends: 120 [2023-11-06 22:02:01,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:01,622 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 40 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 296 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 [2023-11-06 22:02:01,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 296 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-06 22:02:01,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-06 22:02:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3535353535353536) internal successors, (134), 99 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:02:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2023-11-06 22:02:01,636 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 160 [2023-11-06 22:02:01,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:01,638 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2023-11-06 22:02:01,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:02:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2023-11-06 22:02:01,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-06 22:02:01,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:01,641 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:01,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:01,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:01,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:01,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:01,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1379901586, now seen corresponding path program 1 times [2023-11-06 22:02:01,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:01,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999395266] [2023-11-06 22:02:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:01,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:01,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:02:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400759096] [2023-11-06 22:02:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:01,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:01,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:01,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:01,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:02:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:02,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-06 22:02:02,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:02,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:02,805 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:04,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:04,010 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:04,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:04,794 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:05,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:05,455 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:05,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:05,944 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:06,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:06,334 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:06,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:06,620 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:06,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:06,898 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:07,227 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:07,461 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:07,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:07,664 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:07,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:07,847 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:07,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:07,955 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:02:08,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:08,485 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:02:08,486 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 113 treesize of output 81 [2023-11-06 22:02:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-06 22:02:08,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:12,285 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse7 (< |c_ULTIMATE.start_step_#t~ite34#1| 0)) (.cse1 (select (select |c_#memory_int| c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse2 (+ (mod (select (select |c_#memory_int| c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) 1)) (.cse3 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296)) (.cse10 (< 0 (+ |c_ULTIMATE.start_step_#t~ite34#1| 1)))) (and (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse0 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse0) 0)) (not (= (mod .cse1 .cse0) 0)) (< (mod (div .cse1 .cse0) 4294967296) .cse2) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse0) 4294967296))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse6 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse5 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse6)) (.cse4 (div .cse1 .cse6))) (or (< (mod .cse4 4294967296) .cse2) (< .cse3 (mod (+ 1 .cse5) 4294967296)) (< .cse3 (mod .cse5 4294967296)) (< (mod (+ .cse4 1) 4294967296) .cse2))))) (or .cse7 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse8 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod .cse1 .cse8) 0)) (< (mod (div .cse1 .cse8) 4294967296) .cse2) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse8) 4294967296)))))) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse9 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse9) 0) (not (= (mod .cse1 .cse9) 0)) (< (mod (div .cse1 .cse9) 4294967296) .cse2) (< .cse3 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse9)) 4294967296))))) .cse10) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse11 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse12 (div .cse1 .cse11))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse11) 0) (< (mod .cse12 4294967296) .cse2) (< .cse3 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse11)) 4294967296)) (< (mod (+ .cse12 1) 4294967296) .cse2))))) .cse10) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse14 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse13 (div .cse1 .cse14))) (or (< (mod .cse13 4294967296) .cse2) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse14) 4294967296)) (< (mod (+ .cse13 1) 4294967296) .cse2))))) .cse7) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse15 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse16 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse15))) (or (not (= (mod .cse1 .cse15) 0)) (< (mod (div .cse1 .cse15) 4294967296) .cse2) (< .cse3 (mod (+ 1 .cse16) 4294967296)) (< .cse3 (mod .cse16 4294967296)))))) (or (and (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse17 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse17) 0) (= (mod .cse1 .cse17) 0) (< .cse3 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse17)) 4294967296)) (< (mod (+ (div .cse1 .cse17) 1) 4294967296) .cse2)))) .cse10) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse18 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse1 .cse18) 0) (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse18) 0)) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse18) 4294967296)) (< (mod (+ (div .cse1 .cse18) 1) 4294967296) .cse2)))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse19 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse20 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse19))) (or (= (mod .cse1 .cse19) 0) (< .cse3 (mod (+ 1 .cse20) 4294967296)) (< .cse3 (mod .cse20 4294967296)) (< (mod (+ (div .cse1 .cse19) 1) 4294967296) .cse2))))) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse21 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse1 .cse21) 0) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse21) 4294967296)) (< (mod (+ (div .cse1 .cse21) 1) 4294967296) .cse2)))) .cse7)) (< 0 (+ .cse1 1))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse22 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse23 (div .cse1 .cse22))) (or (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse22) 0)) (< (mod .cse23 4294967296) .cse2) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse22) 4294967296)) (< (mod (+ .cse23 1) 4294967296) .cse2))))) (or (< .cse1 0) (and (or .cse7 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse24 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (div .cse1 .cse24) 4294967296) .cse2) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse24) 4294967296)))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse25 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse25) 0)) (< (mod (div .cse1 .cse25) 4294967296) .cse2) (< .cse3 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse25) 4294967296))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse26 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse27 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse26))) (or (< (mod (div .cse1 .cse26) 4294967296) .cse2) (< .cse3 (mod (+ 1 .cse27) 4294967296)) (< .cse3 (mod .cse27 4294967296)))))) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse28 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse28) 0) (< (mod (div .cse1 .cse28) 4294967296) .cse2) (< .cse3 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse28)) 4294967296))))) .cse10))))) is different from true [2023-11-06 22:02:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:02:30,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:30,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999395266] [2023-11-06 22:02:30,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:02:30,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400759096] [2023-11-06 22:02:30,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400759096] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:30,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:30,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [20] total 27 [2023-11-06 22:02:30,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262770205] [2023-11-06 22:02:30,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:30,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:02:30,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:30,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:02:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=506, Unknown=3, NotChecked=48, Total=702 [2023-11-06 22:02:30,932 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:02:35,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:37,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:40,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:42,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:44,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:46,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:48,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:50,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:52,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:02:55,029 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int| c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (let ((.cse6 (< 0 (+ .cse2 1))) (.cse25 (< |c_ULTIMATE.start_step_#t~ite34#1| 0)) (.cse28 (< 0 (+ |c_ULTIMATE.start_step_#t~ite34#1| 1))) (.cse16 (< .cse2 0)) (.cse0 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296)) (.cse4 (+ (mod (select (select |c_#memory_int| c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) 1))) (and (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse3 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse5 (div .cse2 .cse3))) (let ((.cse1 (mod .cse5 4294967296))) (or (< .cse0 .cse1) (not (= (mod .cse2 .cse3) 0)) (< .cse1 .cse4) (< (mod (+ .cse5 1) 4294967296) .cse4)))))) (or .cse6 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse7 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse8 (mod (+ (div .cse2 .cse7) 1) 4294967296))) (or (= (mod .cse2 .cse7) 0) (< .cse8 .cse4) (< .cse0 .cse8)))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse9 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse9) 0)) (not (= (mod .cse2 .cse9) 0)) (< (mod (div .cse2 .cse9) 4294967296) .cse4) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse9) 4294967296))))) (or .cse6 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse10 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse11 (div .cse2 .cse10))) (let ((.cse12 (mod (+ .cse11 1) 4294967296))) (or (= (mod .cse2 .cse10) 0) (< (mod .cse11 4294967296) .cse4) (< .cse12 .cse4) (< .cse0 .cse12))))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse14 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse15 (div .cse2 .cse14))) (let ((.cse13 (mod .cse15 4294967296))) (or (< .cse0 .cse13) (not (= (mod .cse2 .cse14) 0)) (< .cse13 .cse4) (< .cse0 (mod (+ .cse15 1) 4294967296))))))) (or .cse16 (and (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse17 (mod (div .cse2 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296))) (or (< .cse0 .cse17) (< .cse17 .cse4)))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse19 (div .cse2 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (let ((.cse18 (mod .cse19 4294967296))) (or (< .cse0 .cse18) (< .cse18 .cse4) (< .cse0 (mod (+ .cse19 1) 4294967296)))))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse20 (div .cse2 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (let ((.cse21 (mod (+ .cse20 1) 4294967296))) (or (< (mod .cse20 4294967296) .cse4) (< .cse21 .cse4) (< .cse0 .cse21))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse24 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse23 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse24)) (.cse22 (div .cse2 .cse24))) (or (< (mod .cse22 4294967296) .cse4) (< .cse0 (mod (+ 1 .cse23) 4294967296)) (< .cse0 (mod .cse23 4294967296)) (< (mod (+ .cse22 1) 4294967296) .cse4))))) (or .cse25 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse26 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod .cse2 .cse26) 0)) (< (mod (div .cse2 .cse26) 4294967296) .cse4) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse26) 4294967296)))))) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse27 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse27) 0) (not (= (mod .cse2 .cse27) 0)) (< (mod (div .cse2 .cse27) 4294967296) .cse4) (< .cse0 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse27)) 4294967296))))) .cse28) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse29 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse30 (div .cse2 .cse29))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse29) 0) (< (mod .cse30 4294967296) .cse4) (< .cse0 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse29)) 4294967296)) (< (mod (+ .cse30 1) 4294967296) .cse4))))) .cse28) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse32 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse31 (div .cse2 .cse32))) (or (< (mod .cse31 4294967296) .cse4) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse32) 4294967296)) (< (mod (+ .cse31 1) 4294967296) .cse4))))) .cse25) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse33 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse34 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse33))) (or (not (= (mod .cse2 .cse33) 0)) (< (mod (div .cse2 .cse33) 4294967296) .cse4) (< .cse0 (mod (+ 1 .cse34) 4294967296)) (< .cse0 (mod .cse34 4294967296)))))) (or (and (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse35 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse35) 0) (= (mod .cse2 .cse35) 0) (< .cse0 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse35)) 4294967296)) (< (mod (+ (div .cse2 .cse35) 1) 4294967296) .cse4)))) .cse28) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse36 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse2 .cse36) 0) (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse36) 0)) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse36) 4294967296)) (< (mod (+ (div .cse2 .cse36) 1) 4294967296) .cse4)))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse37 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse38 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse37))) (or (= (mod .cse2 .cse37) 0) (< .cse0 (mod (+ 1 .cse38) 4294967296)) (< .cse0 (mod .cse38 4294967296)) (< (mod (+ (div .cse2 .cse37) 1) 4294967296) .cse4))))) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse39 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse2 .cse39) 0) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse39) 4294967296)) (< (mod (+ (div .cse2 .cse39) 1) 4294967296) .cse4)))) .cse25)) .cse6) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse40 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse41 (div .cse2 .cse40))) (or (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse40) 0)) (< (mod .cse41 4294967296) .cse4) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse40) 4294967296)) (< (mod (+ .cse41 1) 4294967296) .cse4))))) (or .cse16 (and (or .cse25 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse42 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (div .cse2 .cse42) 4294967296) .cse4) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse42) 4294967296)))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse43 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse43) 0)) (< (mod (div .cse2 .cse43) 4294967296) .cse4) (< .cse0 (mod (div |c_ULTIMATE.start_step_#t~ite34#1| .cse43) 4294967296))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse44 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse45 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse44))) (or (< (mod (div .cse2 .cse44) 4294967296) .cse4) (< .cse0 (mod (+ 1 .cse45) 4294967296)) (< .cse0 (mod .cse45 4294967296)))))) (or (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse46 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod |c_ULTIMATE.start_step_#t~ite34#1| .cse46) 0) (< (mod (div .cse2 .cse46) 4294967296) .cse4) (< .cse0 (mod (+ 1 (div |c_ULTIMATE.start_step_#t~ite34#1| .cse46)) 4294967296))))) .cse28))) (or .cse16 (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse48 (div .cse2 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (let ((.cse47 (mod .cse48 4294967296))) (or (< .cse0 .cse47) (< .cse47 .cse4) (< (mod (+ .cse48 1) 4294967296) .cse4)))))) (forall ((~var_1_4_Pointer~0.base Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse50 (mod (select (select |c_#memory_int| ~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (let ((.cse49 (mod (div .cse2 .cse50) 4294967296))) (or (< .cse0 .cse49) (not (= (mod .cse2 .cse50) 0)) (< .cse49 .cse4)))))))) is different from true [2023-11-06 22:02:58,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:02,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:08,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:10,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:12,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:16,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:19,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:22,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:24,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-11-06 22:03:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:25,273 INFO L93 Difference]: Finished difference Result 292 states and 417 transitions. [2023-11-06 22:03:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:03:25,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2023-11-06 22:03:25,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:25,278 INFO L225 Difference]: With dead ends: 292 [2023-11-06 22:03:25,278 INFO L226 Difference]: Without dead ends: 175 [2023-11-06 22:03:25,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 27.4s TimeCoverageRelationStatistics Valid=159, Invalid=601, Unknown=4, NotChecked=106, Total=870 [2023-11-06 22:03:25,280 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 142 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 251 IncrementalHoareTripleChecker+Unchecked, 48.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:25,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 796 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 10 Unknown, 251 Unchecked, 48.2s Time] [2023-11-06 22:03:25,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-06 22:03:25,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 124. [2023-11-06 22:03:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:03:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 176 transitions. [2023-11-06 22:03:25,309 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 176 transitions. Word has length 160 [2023-11-06 22:03:25,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:25,309 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 176 transitions. [2023-11-06 22:03:25,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 176 transitions. [2023-11-06 22:03:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-06 22:03:25,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:25,313 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:25,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 22:03:25,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:25,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:25,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1264983739, now seen corresponding path program 1 times [2023-11-06 22:03:25,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:25,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947969479] [2023-11-06 22:03:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:25,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:25,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:25,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318654382] [2023-11-06 22:03:25,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:25,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:25,597 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:25,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:03:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:25,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-06 22:03:25,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:26,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:26,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:03:27,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:27,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:27,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:27,097 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:03:27,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:27,249 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-06 22:03:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:27,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:27,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:27,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947969479] [2023-11-06 22:03:27,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:27,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318654382] [2023-11-06 22:03:27,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318654382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:27,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:27,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:03:27,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783915937] [2023-11-06 22:03:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:27,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:03:27,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:27,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:03:27,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:27,289 INFO L87 Difference]: Start difference. First operand 124 states and 176 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:28,050 INFO L93 Difference]: Finished difference Result 311 states and 440 transitions. [2023-11-06 22:03:28,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:03:28,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2023-11-06 22:03:28,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:28,054 INFO L225 Difference]: With dead ends: 311 [2023-11-06 22:03:28,054 INFO L226 Difference]: Without dead ends: 190 [2023-11-06 22:03:28,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:03:28,056 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 268 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:28,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 782 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:03:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-06 22:03:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 143. [2023-11-06 22:03:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 122 states have internal predecessors, (162), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:03:28,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 200 transitions. [2023-11-06 22:03:28,075 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 200 transitions. Word has length 160 [2023-11-06 22:03:28,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:28,076 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 200 transitions. [2023-11-06 22:03:28,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 200 transitions. [2023-11-06 22:03:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:28,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:28,079 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:28,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:28,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:03:28,288 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:28,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2020807641, now seen corresponding path program 1 times [2023-11-06 22:03:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025834205] [2023-11-06 22:03:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:28,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:28,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2063612228] [2023-11-06 22:03:28,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:28,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:28,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:28,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:28,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:03:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:28,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-06 22:03:28,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:29,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:29,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:29,242 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:30,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:30,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:30,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:30,594 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:31,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:31,510 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:32,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:32,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:32,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:32,379 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:32,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:32,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:32,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:32,951 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:33,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:33,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:33,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:33,474 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:33,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:34,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:34,003 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:34,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:34,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:34,525 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:35,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,040 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:35,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,492 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:35,907 INFO L322 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-06 22:03:35,908 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 27 [2023-11-06 22:03:36,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:36,497 INFO L322 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-06 22:03:36,498 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 38 [2023-11-06 22:03:36,892 INFO L322 Elim1Store]: treesize reduction 52, result has 30.7 percent of original size [2023-11-06 22:03:36,892 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 49 [2023-11-06 22:03:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-06 22:03:37,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:37,686 WARN L839 $PredicateComparison]: unable to prove that (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_763 (Array Int Int))) (not (= (mod c_~last_1_var_1_20~0 4294967296) (mod (select (select (let ((.cse0 (store |c_#memory_int| c_~var_1_6_Pointer~0.base v_ArrVal_763))) (store .cse0 c_~var_1_20_Pointer~0.base (store (select .cse0 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset c_~last_1_var_1_20~0))) c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) 4294967296)))) is different from false [2023-11-06 22:03:37,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:37,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025834205] [2023-11-06 22:03:37,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:37,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063612228] [2023-11-06 22:03:37,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063612228] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:37,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:37,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-06 22:03:37,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844452221] [2023-11-06 22:03:37,714 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:37,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:03:37,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:37,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:03:37,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=370, Unknown=1, NotChecked=42, Total=552 [2023-11-06 22:03:37,718 INFO L87 Difference]: Start difference. First operand 143 states and 200 transitions. Second operand has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 18 states have internal predecessors, (99), 11 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 11 states have call predecessors, (19), 11 states have call successors, (19) [2023-11-06 22:03:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:40,183 INFO L93 Difference]: Finished difference Result 422 states and 589 transitions. [2023-11-06 22:03:40,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:03:40,184 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 18 states have internal predecessors, (99), 11 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 11 states have call predecessors, (19), 11 states have call successors, (19) Word has length 161 [2023-11-06 22:03:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:40,187 INFO L225 Difference]: With dead ends: 422 [2023-11-06 22:03:40,187 INFO L226 Difference]: Without dead ends: 282 [2023-11-06 22:03:40,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=180, Invalid=525, Unknown=1, NotChecked=50, Total=756 [2023-11-06 22:03:40,190 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 319 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:40,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1054 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 22:03:40,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-06 22:03:40,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 233. [2023-11-06 22:03:40,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 191 states have (on average 1.324607329842932) internal successors, (253), 191 states have internal predecessors, (253), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 329 transitions. [2023-11-06 22:03:40,243 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 329 transitions. Word has length 161 [2023-11-06 22:03:40,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:40,244 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 329 transitions. [2023-11-06 22:03:40,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 18 states have internal predecessors, (99), 11 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 11 states have call predecessors, (19), 11 states have call successors, (19) [2023-11-06 22:03:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 329 transitions. [2023-11-06 22:03:40,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:40,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:40,248 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:40,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:40,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:40,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:40,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash 585215913, now seen corresponding path program 1 times [2023-11-06 22:03:40,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:40,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799076160] [2023-11-06 22:03:40,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:40,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:40,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:40,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104159179] [2023-11-06 22:03:40,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:40,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:40,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:40,549 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:40,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:03:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:40,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-06 22:03:40,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:41,794 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:03:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:41,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:41,881 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:03:41,881 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 23 [2023-11-06 22:03:41,966 INFO L322 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-11-06 22:03:41,967 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 24 [2023-11-06 22:03:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:41,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:41,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:41,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799076160] [2023-11-06 22:03:41,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:41,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104159179] [2023-11-06 22:03:41,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104159179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:41,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:41,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:41,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230850230] [2023-11-06 22:03:41,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:41,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:03:41,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:41,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:03:41,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:41,988 INFO L87 Difference]: Start difference. First operand 233 states and 329 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:42,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:42,591 INFO L93 Difference]: Finished difference Result 456 states and 643 transitions. [2023-11-06 22:03:42,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:03:42,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2023-11-06 22:03:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:42,595 INFO L225 Difference]: With dead ends: 456 [2023-11-06 22:03:42,595 INFO L226 Difference]: Without dead ends: 316 [2023-11-06 22:03:42,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:42,597 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 266 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:42,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 509 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:03:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-06 22:03:42,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 238. [2023-11-06 22:03:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 196 states have (on average 1.3214285714285714) internal successors, (259), 196 states have internal predecessors, (259), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 335 transitions. [2023-11-06 22:03:42,631 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 335 transitions. Word has length 161 [2023-11-06 22:03:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:42,632 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 335 transitions. [2023-11-06 22:03:42,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 335 transitions. [2023-11-06 22:03:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:42,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:42,634 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:42,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:42,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:42,842 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:42,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:42,842 INFO L85 PathProgramCache]: Analyzing trace with hash -425901337, now seen corresponding path program 1 times [2023-11-06 22:03:42,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:42,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827488763] [2023-11-06 22:03:42,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:42,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:42,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:42,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902854456] [2023-11-06 22:03:42,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:42,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:42,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:42,925 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:42,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:03:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:43,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:03:43,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:43,346 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:03:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-06 22:03:43,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:43,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827488763] [2023-11-06 22:03:43,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:43,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902854456] [2023-11-06 22:03:43,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902854456] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:43,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:43,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2023-11-06 22:03:43,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137248380] [2023-11-06 22:03:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:43,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:43,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:43,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:43,546 INFO L87 Difference]: Start difference. First operand 238 states and 335 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:43,941 INFO L93 Difference]: Finished difference Result 458 states and 644 transitions. [2023-11-06 22:03:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:03:43,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2023-11-06 22:03:43,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:43,945 INFO L225 Difference]: With dead ends: 458 [2023-11-06 22:03:43,945 INFO L226 Difference]: Without dead ends: 313 [2023-11-06 22:03:43,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:03:43,947 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 134 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:43,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 804 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:03:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-06 22:03:43,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 239. [2023-11-06 22:03:43,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 197 states have (on average 1.3197969543147208) internal successors, (260), 197 states have internal predecessors, (260), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 336 transitions. [2023-11-06 22:03:43,980 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 336 transitions. Word has length 161 [2023-11-06 22:03:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:43,981 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 336 transitions. [2023-11-06 22:03:43,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:43,982 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 336 transitions. [2023-11-06 22:03:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:43,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:43,983 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:43,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:44,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:44,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:44,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 700133760, now seen corresponding path program 1 times [2023-11-06 22:03:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:44,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365637237] [2023-11-06 22:03:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:44,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:44,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:44,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431734878] [2023-11-06 22:03:44,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:44,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:44,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:44,244 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:44,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:03:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:44,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:03:44,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:45,915 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:03:46,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:46,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:46,035 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:03:46,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:46,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:46,094 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:03:46,195 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-06 22:03:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:46,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:46,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:46,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365637237] [2023-11-06 22:03:46,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:46,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431734878] [2023-11-06 22:03:46,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431734878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:46,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:46,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:03:46,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81875262] [2023-11-06 22:03:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:46,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:03:46,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:46,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:03:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:46,229 INFO L87 Difference]: Start difference. First operand 239 states and 336 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:46,985 INFO L93 Difference]: Finished difference Result 494 states and 692 transitions. [2023-11-06 22:03:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:03:46,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2023-11-06 22:03:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:46,989 INFO L225 Difference]: With dead ends: 494 [2023-11-06 22:03:46,990 INFO L226 Difference]: Without dead ends: 348 [2023-11-06 22:03:46,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:03:46,991 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 479 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:46,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 721 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:03:46,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-06 22:03:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 255. [2023-11-06 22:03:47,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 213 states have (on average 1.3192488262910798) internal successors, (281), 213 states have internal predecessors, (281), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 357 transitions. [2023-11-06 22:03:47,024 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 357 transitions. Word has length 161 [2023-11-06 22:03:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:47,025 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 357 transitions. [2023-11-06 22:03:47,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 10 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 357 transitions. [2023-11-06 22:03:47,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:47,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:47,027 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:47,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:47,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:03:47,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:47,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:47,236 INFO L85 PathProgramCache]: Analyzing trace with hash 2140146149, now seen corresponding path program 1 times [2023-11-06 22:03:47,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:47,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431829556] [2023-11-06 22:03:47,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:47,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:47,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:47,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791822075] [2023-11-06 22:03:47,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:47,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:47,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:47,291 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:47,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:03:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:48,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:03:48,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:48,038 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 22:03:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-06 22:03:48,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:48,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:48,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431829556] [2023-11-06 22:03:48,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:48,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791822075] [2023-11-06 22:03:48,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791822075] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:48,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:48,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2023-11-06 22:03:48,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033408695] [2023-11-06 22:03:48,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:48,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:48,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:48,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:48,229 INFO L87 Difference]: Start difference. First operand 255 states and 357 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:48,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:48,672 INFO L93 Difference]: Finished difference Result 537 states and 748 transitions. [2023-11-06 22:03:48,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:03:48,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2023-11-06 22:03:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:48,676 INFO L225 Difference]: With dead ends: 537 [2023-11-06 22:03:48,677 INFO L226 Difference]: Without dead ends: 376 [2023-11-06 22:03:48,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:03:48,679 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 129 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:48,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 888 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:03:48,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-06 22:03:48,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 255. [2023-11-06 22:03:48,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 213 states have (on average 1.3192488262910798) internal successors, (281), 213 states have internal predecessors, (281), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 357 transitions. [2023-11-06 22:03:48,712 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 357 transitions. Word has length 161 [2023-11-06 22:03:48,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:48,713 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 357 transitions. [2023-11-06 22:03:48,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 357 transitions. [2023-11-06 22:03:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:48,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:48,715 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:48,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:48,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:48,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:48,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:48,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1129028899, now seen corresponding path program 1 times [2023-11-06 22:03:48,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:48,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325089616] [2023-11-06 22:03:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:48,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:48,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:48,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868332587] [2023-11-06 22:03:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:48,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:48,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:48,979 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:49,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:03:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:49,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-06 22:03:49,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:50,122 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:03:50,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:50,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:50,193 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:03:50,193 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2023-11-06 22:03:50,255 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:50,255 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 26 [2023-11-06 22:03:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:50,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:50,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:50,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325089616] [2023-11-06 22:03:50,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:50,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868332587] [2023-11-06 22:03:50,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868332587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:50,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:50,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:50,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402536416] [2023-11-06 22:03:50,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:50,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:03:50,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:50,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:03:50,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:50,279 INFO L87 Difference]: Start difference. First operand 255 states and 357 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:50,803 INFO L93 Difference]: Finished difference Result 477 states and 662 transitions. [2023-11-06 22:03:50,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:50,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2023-11-06 22:03:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:50,808 INFO L225 Difference]: With dead ends: 477 [2023-11-06 22:03:50,809 INFO L226 Difference]: Without dead ends: 316 [2023-11-06 22:03:50,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:50,810 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 156 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:50,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 575 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:03:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-06 22:03:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 249. [2023-11-06 22:03:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 207 states have (on average 1.3091787439613527) internal successors, (271), 207 states have internal predecessors, (271), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 347 transitions. [2023-11-06 22:03:50,842 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 347 transitions. Word has length 161 [2023-11-06 22:03:50,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:50,843 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 347 transitions. [2023-11-06 22:03:50,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:50,843 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 347 transitions. [2023-11-06 22:03:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:03:50,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:50,845 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:50,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-06 22:03:51,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:03:51,052 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:51,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1422802598, now seen corresponding path program 1 times [2023-11-06 22:03:51,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:51,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940563070] [2023-11-06 22:03:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:51,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:51,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:51,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320074611] [2023-11-06 22:03:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:51,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:51,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:51,103 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:51,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:03:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:51,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 22:03:51,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:51,508 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:03:52,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:52,551 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2023-11-06 22:03:52,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:52,683 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2023-11-06 22:03:52,820 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-06 22:03:52,853 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:52,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:52,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:52,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940563070] [2023-11-06 22:03:52,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:52,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320074611] [2023-11-06 22:03:52,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320074611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:52,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:52,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:03:52,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017741635] [2023-11-06 22:03:52,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:52,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:03:52,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:52,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:03:52,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:03:52,856 INFO L87 Difference]: Start difference. First operand 249 states and 347 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:54,041 INFO L93 Difference]: Finished difference Result 546 states and 748 transitions. [2023-11-06 22:03:54,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:54,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 161 [2023-11-06 22:03:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:54,045 INFO L225 Difference]: With dead ends: 546 [2023-11-06 22:03:54,046 INFO L226 Difference]: Without dead ends: 391 [2023-11-06 22:03:54,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:03:54,047 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 230 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:54,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 837 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:03:54,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-06 22:03:54,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 260. [2023-11-06 22:03:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 218 states have (on average 1.298165137614679) internal successors, (283), 218 states have internal predecessors, (283), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 359 transitions. [2023-11-06 22:03:54,106 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 359 transitions. Word has length 161 [2023-11-06 22:03:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:54,107 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 359 transitions. [2023-11-06 22:03:54,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 359 transitions. [2023-11-06 22:03:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:03:54,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:54,109 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:54,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:54,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:03:54,317 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:54,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:54,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1520528928, now seen corresponding path program 1 times [2023-11-06 22:03:54,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:54,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310102847] [2023-11-06 22:03:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:54,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660777385] [2023-11-06 22:03:54,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:54,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:54,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:54,363 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:54,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:03:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:54,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-06 22:03:54,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,856 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:03:55,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,932 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:03:55,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:55,988 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:03:56,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:56,117 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-06 22:03:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:56,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:56,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:56,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310102847] [2023-11-06 22:03:56,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:56,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660777385] [2023-11-06 22:03:56,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660777385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:56,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:56,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:03:56,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949830891] [2023-11-06 22:03:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:56,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:03:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:56,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:03:56,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:56,153 INFO L87 Difference]: Start difference. First operand 260 states and 359 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:56,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:56,915 INFO L93 Difference]: Finished difference Result 484 states and 666 transitions. [2023-11-06 22:03:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:03:56,916 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2023-11-06 22:03:56,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:56,919 INFO L225 Difference]: With dead ends: 484 [2023-11-06 22:03:56,919 INFO L226 Difference]: Without dead ends: 329 [2023-11-06 22:03:56,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:03:56,921 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 385 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:56,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 827 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:03:56,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-06 22:03:56,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 268. [2023-11-06 22:03:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 226 states have (on average 1.3008849557522124) internal successors, (294), 226 states have internal predecessors, (294), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 370 transitions. [2023-11-06 22:03:56,952 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 370 transitions. Word has length 162 [2023-11-06 22:03:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:56,953 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 370 transitions. [2023-11-06 22:03:56,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 370 transitions. [2023-11-06 22:03:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:03:56,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:56,955 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:56,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:57,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:03:57,169 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:03:57,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1020749674, now seen corresponding path program 1 times [2023-11-06 22:03:57,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:57,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979855328] [2023-11-06 22:03:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:57,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:57,219 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:03:57,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843518084] [2023-11-06 22:03:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:57,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:57,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:57,221 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:57,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:03:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:57,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 22:03:57,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:57,629 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:03:58,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:58,737 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2023-11-06 22:03:58,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:03:58,841 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2023-11-06 22:03:58,947 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2023-11-06 22:03:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:03:58,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:58,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979855328] [2023-11-06 22:03:58,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:03:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843518084] [2023-11-06 22:03:58,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843518084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:58,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:58,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:03:58,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478468159] [2023-11-06 22:03:58,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:58,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:58,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:58,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:58,978 INFO L87 Difference]: Start difference. First operand 268 states and 370 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:59,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:59,857 INFO L93 Difference]: Finished difference Result 572 states and 779 transitions. [2023-11-06 22:03:59,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:03:59,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2023-11-06 22:03:59,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:59,862 INFO L225 Difference]: With dead ends: 572 [2023-11-06 22:03:59,862 INFO L226 Difference]: Without dead ends: 409 [2023-11-06 22:03:59,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:03:59,866 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 320 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:59,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 561 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:03:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-06 22:03:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 279. [2023-11-06 22:03:59,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 237 states have (on average 1.2911392405063291) internal successors, (306), 237 states have internal predecessors, (306), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 382 transitions. [2023-11-06 22:03:59,898 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 382 transitions. Word has length 162 [2023-11-06 22:03:59,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:59,900 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 382 transitions. [2023-11-06 22:03:59,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:03:59,900 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 382 transitions. [2023-11-06 22:03:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:03:59,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:59,904 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:59,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:00,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-06 22:04:00,112 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:00,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash 424575767, now seen corresponding path program 1 times [2023-11-06 22:04:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:00,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106896790] [2023-11-06 22:04:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:00,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:00,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:04:00,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172283741] [2023-11-06 22:04:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:00,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:00,154 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:04:00,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-06 22:04:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:00,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:04:00,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:04:00,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:00,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106896790] [2023-11-06 22:04:00,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:04:00,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172283741] [2023-11-06 22:04:00,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172283741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:00,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:00,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:00,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926784549] [2023-11-06 22:04:00,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:00,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:00,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:00,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:00,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:00,529 INFO L87 Difference]: Start difference. First operand 279 states and 382 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:00,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:00,593 INFO L93 Difference]: Finished difference Result 454 states and 624 transitions. [2023-11-06 22:04:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:00,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2023-11-06 22:04:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:00,596 INFO L225 Difference]: With dead ends: 454 [2023-11-06 22:04:00,597 INFO L226 Difference]: Without dead ends: 291 [2023-11-06 22:04:00,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:04:00,598 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 45 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:00,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 652 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:04:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-06 22:04:00,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 282. [2023-11-06 22:04:00,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 240 states have (on average 1.2875) internal successors, (309), 240 states have internal predecessors, (309), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:04:00,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 385 transitions. [2023-11-06 22:04:00,628 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 385 transitions. Word has length 162 [2023-11-06 22:04:00,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:00,628 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 385 transitions. [2023-11-06 22:04:00,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 385 transitions. [2023-11-06 22:04:00,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:04:00,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:00,630 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:00,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:00,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 22:04:00,842 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:00,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:00,843 INFO L85 PathProgramCache]: Analyzing trace with hash -392735254, now seen corresponding path program 1 times [2023-11-06 22:04:00,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:00,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122409192] [2023-11-06 22:04:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:00,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:00,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:04:00,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633216684] [2023-11-06 22:04:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:00,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:00,887 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:04:00,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-06 22:04:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:01,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:04:01,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:01,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:01,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:04:01,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:01,733 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2023-11-06 22:04:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:04:01,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:01,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:01,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122409192] [2023-11-06 22:04:01,743 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:04:01,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633216684] [2023-11-06 22:04:01,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633216684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:01,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736298405] [2023-11-06 22:04:01,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:01,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:01,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:01,746 INFO L87 Difference]: Start difference. First operand 282 states and 385 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:02,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:02,043 INFO L93 Difference]: Finished difference Result 450 states and 616 transitions. [2023-11-06 22:04:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:04:02,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2023-11-06 22:04:02,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:02,046 INFO L225 Difference]: With dead ends: 450 [2023-11-06 22:04:02,047 INFO L226 Difference]: Without dead ends: 284 [2023-11-06 22:04:02,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:02,048 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 114 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:02,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 369 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:04:02,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-06 22:04:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 283. [2023-11-06 22:04:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 241 states have (on average 1.2863070539419088) internal successors, (310), 241 states have internal predecessors, (310), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:04:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 386 transitions. [2023-11-06 22:04:02,092 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 386 transitions. Word has length 162 [2023-11-06 22:04:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:02,093 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 386 transitions. [2023-11-06 22:04:02,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 386 transitions. [2023-11-06 22:04:02,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:04:02,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:02,095 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:02,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:02,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 22:04:02,303 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:02,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1530492780, now seen corresponding path program 1 times [2023-11-06 22:04:02,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:02,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974403537] [2023-11-06 22:04:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:02,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:02,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:04:02,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523900422] [2023-11-06 22:04:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:02,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:02,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:02,359 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:04:02,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-06 22:04:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:02,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:04:02,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:02,752 INFO L322 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2023-11-06 22:04:02,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 25 [2023-11-06 22:04:02,763 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:04:02,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:02,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:02,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974403537] [2023-11-06 22:04:02,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:04:02,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523900422] [2023-11-06 22:04:02,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523900422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:02,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:02,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:02,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232620420] [2023-11-06 22:04:02,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:02,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:04:02,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:02,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:04:02,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:04:02,767 INFO L87 Difference]: Start difference. First operand 283 states and 386 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:02,895 INFO L93 Difference]: Finished difference Result 450 states and 615 transitions. [2023-11-06 22:04:02,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:04:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2023-11-06 22:04:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:02,898 INFO L225 Difference]: With dead ends: 450 [2023-11-06 22:04:02,898 INFO L226 Difference]: Without dead ends: 282 [2023-11-06 22:04:02,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:04:02,899 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:02,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 437 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:04:02,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-06 22:04:02,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2023-11-06 22:04:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 240 states have (on average 1.275) internal successors, (306), 240 states have internal predecessors, (306), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:04:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 382 transitions. [2023-11-06 22:04:02,928 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 382 transitions. Word has length 162 [2023-11-06 22:04:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:02,928 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 382 transitions. [2023-11-06 22:04:02,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 382 transitions. [2023-11-06 22:04:02,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 22:04:02,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:02,930 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:02,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:03,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 22:04:03,138 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:03,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:03,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1877835713, now seen corresponding path program 1 times [2023-11-06 22:04:03,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:03,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75638710] [2023-11-06 22:04:03,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:03,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:03,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:04:03,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703264081] [2023-11-06 22:04:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:03,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:03,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:03,183 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:04:03,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-06 22:04:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:03,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-06 22:04:03,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:03,710 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:04:05,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:05,225 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2023-11-06 22:04:05,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:05,367 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2023-11-06 22:04:05,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:05,446 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 19 [2023-11-06 22:04:05,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-11-06 22:04:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:04:05,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:05,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:05,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75638710] [2023-11-06 22:04:05,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:04:05,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703264081] [2023-11-06 22:04:05,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703264081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:05,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:05,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:04:05,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994920615] [2023-11-06 22:04:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:05,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:04:05,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:05,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:04:05,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:04:05,565 INFO L87 Difference]: Start difference. First operand 282 states and 382 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:06,663 INFO L93 Difference]: Finished difference Result 604 states and 810 transitions. [2023-11-06 22:04:06,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:04:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2023-11-06 22:04:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:06,667 INFO L225 Difference]: With dead ends: 604 [2023-11-06 22:04:06,667 INFO L226 Difference]: Without dead ends: 438 [2023-11-06 22:04:06,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:04:06,669 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 290 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:06,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 826 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:04:06,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-06 22:04:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 294. [2023-11-06 22:04:06,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 252 states have (on average 1.2738095238095237) internal successors, (321), 252 states have internal predecessors, (321), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:04:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 397 transitions. [2023-11-06 22:04:06,705 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 397 transitions. Word has length 162 [2023-11-06 22:04:06,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:06,705 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 397 transitions. [2023-11-06 22:04:06,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:06,706 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 397 transitions. [2023-11-06 22:04:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-06 22:04:06,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:06,708 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:06,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:06,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:06,916 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:06,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:06,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1237856061, now seen corresponding path program 1 times [2023-11-06 22:04:06,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:06,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754764601] [2023-11-06 22:04:06,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:06,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:06,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:04:06,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347194791] [2023-11-06 22:04:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:06,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:06,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:06,981 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:04:07,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-06 22:04:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:07,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-06 22:04:07,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:08,799 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:04:08,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:08,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:08,897 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:04:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:08,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:08,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:04:09,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:09,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:09,023 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-06 22:04:09,121 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-06 22:04:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:04:09,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:09,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:09,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754764601] [2023-11-06 22:04:09,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:04:09,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347194791] [2023-11-06 22:04:09,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347194791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:09,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:09,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:04:09,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612880619] [2023-11-06 22:04:09,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:09,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:04:09,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:09,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:04:09,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:04:09,157 INFO L87 Difference]: Start difference. First operand 294 states and 397 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:10,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:10,131 INFO L93 Difference]: Finished difference Result 579 states and 782 transitions. [2023-11-06 22:04:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:04:10,137 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 163 [2023-11-06 22:04:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:10,141 INFO L225 Difference]: With dead ends: 579 [2023-11-06 22:04:10,141 INFO L226 Difference]: Without dead ends: 413 [2023-11-06 22:04:10,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:04:10,145 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 498 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:10,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 886 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:04:10,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-06 22:04:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 288. [2023-11-06 22:04:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 246 states have (on average 1.2723577235772359) internal successors, (313), 246 states have internal predecessors, (313), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:04:10,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 389 transitions. [2023-11-06 22:04:10,188 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 389 transitions. Word has length 163 [2023-11-06 22:04:10,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:10,189 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 389 transitions. [2023-11-06 22:04:10,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:04:10,189 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 389 transitions. [2023-11-06 22:04:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-06 22:04:10,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:10,191 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:10,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:10,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:10,399 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:04:10,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:10,400 INFO L85 PathProgramCache]: Analyzing trace with hash -286944027, now seen corresponding path program 1 times [2023-11-06 22:04:10,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:10,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539632764] [2023-11-06 22:04:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:10,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:10,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:04:10,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629663273] [2023-11-06 22:04:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:10,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:04:10,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:10,444 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:04:10,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3590940b-c3e5-45ae-ae66-3ba0bd1d2879/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-06 22:04:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:10,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-06 22:04:10,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:11,275 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:12,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:12,377 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:13,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:13,090 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:13,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:13,773 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:14,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:14,199 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:14,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:14,638 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:14,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:14,999 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:15,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:15,337 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:15,703 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:16,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:16,013 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:16,321 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:16,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:16,577 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:04:16,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:16,706 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-06 22:04:17,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:17,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:17,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:17,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:04:17,376 INFO L322 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-11-06 22:04:17,377 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 89 [2023-11-06 22:04:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-06 22:04:18,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:04:19,363 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse0 (select (select .cse1 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< .cse0 0) (< (mod (select (select .cse1 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse0 (mod (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset) 65536)) 4294967296)))))) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse2 (mod (select (select .cse4 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296)) (.cse3 (div (select (select .cse4 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse4 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse2 (mod (+ .cse3 1) 4294967296)) (< .cse2 (mod .cse3 4294967296)))))) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse5 (select (select .cse7 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse6 (mod (select (select .cse7 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod .cse5 .cse6) 0)) (< (mod (select (select .cse7 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse5 .cse6) 4294967296)))))) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse10 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse8 (select (select .cse10 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse9 (mod (select (select .cse10 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse8 .cse9) 0) (< 0 (+ .cse8 1)) (< (mod (select (select .cse10 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse8 .cse9) 1) 4294967296))))))) is different from false [2023-11-06 22:04:58,264 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_int| c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse1 (+ (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296) 1)) (.cse5 (select |c_#memory_int| c_~var_1_4_Pointer~0.base))) (and (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse0 (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)))) (or (< (mod (+ .cse0 1) 4294967296) .cse1) (< (mod .cse0 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse3 (select (select .cse2 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< (mod (select (select .cse2 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse3 (mod (select (select .cse2 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< .cse3 0)))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse6 (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)))) (or (< (mod (+ .cse6 1) 4294967296) .cse1) (< (mod .cse6 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse8 (select (select .cse7 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse9 (mod (select (select .cse7 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse7 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse8 .cse9) 1) 4294967296)) (< 0 (+ .cse8 1)) (= (mod .cse8 .cse9) 0)))))))) (or (< 0 (+ .cse4 1)) (and (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse10 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse4 .cse10) 0) (< (mod (+ (div .cse4 .cse10) 1) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse11 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse12 (select (select .cse11 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse13 (mod (select (select .cse11 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse11 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse12 .cse13) 4294967296)) (not (= (mod .cse12 .cse13) 0))))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse14 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse4 .cse14) 0) (< (mod (+ (div .cse4 .cse14) 1) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse15 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse16 (select (select .cse15 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse17 (mod (select (select .cse15 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse15 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse16 .cse17) 1) 4294967296)) (< 0 (+ .cse16 1)) (= (mod .cse16 .cse17) 0)))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse21 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse20 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse18 (mod (select (select .cse20 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296)) (.cse19 (div (select (select .cse20 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse20 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse18 (mod .cse19 4294967296)) (< .cse18 (mod (+ .cse19 1) 4294967296)))))) (= (mod .cse4 .cse21) 0) (< (mod (+ (div .cse4 .cse21) 1) 4294967296) .cse1)))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse22 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (= (mod .cse4 .cse22) 0) (< (mod (+ (div .cse4 .cse22) 1) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse23 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse24 (select (select .cse23 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< (mod (select (select .cse23 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse24 (mod (select (select .cse23 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< .cse24 0)))))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse25 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod .cse4 .cse25) 0)) (< (mod (div .cse4 .cse25) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse26 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse27 (select (select .cse26 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse28 (mod (select (select .cse26 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse26 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse27 .cse28) 1) 4294967296)) (< 0 (+ .cse27 1)) (= (mod .cse27 .cse28) 0)))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse29 (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)))) (or (< (mod (+ .cse29 1) 4294967296) .cse1) (< (mod .cse29 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse30 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse31 (select (select .cse30 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse32 (mod (select (select .cse30 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse30 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse31 .cse32) 4294967296)) (not (= (mod .cse31 .cse32) 0))))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse36 (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)))) (or (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse35 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse33 (mod (select (select .cse35 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296)) (.cse34 (div (select (select .cse35 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse35 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse33 (mod .cse34 4294967296)) (< .cse33 (mod (+ .cse34 1) 4294967296)))))) (< (mod (+ .cse36 1) 4294967296) .cse1) (< (mod .cse36 4294967296) .cse1)))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse37 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod .cse4 .cse37) 0)) (< (mod (div .cse4 .cse37) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse38 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse39 (select (select .cse38 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< (mod (select (select .cse38 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse39 (mod (select (select .cse38 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< .cse39 0)))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse43 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse42 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse40 (mod (select (select .cse42 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296)) (.cse41 (div (select (select .cse42 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse42 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse40 (mod .cse41 4294967296)) (< .cse40 (mod (+ .cse41 1) 4294967296)))))) (not (= (mod .cse4 .cse43) 0)) (< (mod (div .cse4 .cse43) 4294967296) .cse1)))) (or (and (forall ((~var_1_4_Pointer~0.offset Int)) (or (< (mod (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse44 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse45 (select (select .cse44 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< (mod (select (select .cse44 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse45 (mod (select (select .cse44 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< .cse45 0))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (or (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse48 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse46 (mod (select (select .cse48 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296)) (.cse47 (div (select (select .cse48 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse48 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse46 (mod .cse47 4294967296)) (< .cse46 (mod (+ .cse47 1) 4294967296)))))) (< (mod (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)) 4294967296) .cse1))) (forall ((~var_1_4_Pointer~0.offset Int)) (or (< (mod (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse49 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse50 (select (select .cse49 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse51 (mod (select (select .cse49 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse49 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse50 .cse51) 4294967296)) (not (= (mod .cse50 .cse51) 0)))))))) (forall ((~var_1_4_Pointer~0.offset Int)) (or (< (mod (div .cse4 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536)) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse52 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse53 (select (select .cse52 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse54 (mod (select (select .cse52 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse52 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse53 .cse54) 1) 4294967296)) (< 0 (+ .cse53 1)) (= (mod .cse53 .cse54) 0)))))))) (< .cse4 0)) (forall ((~var_1_4_Pointer~0.offset Int)) (let ((.cse55 (mod (select .cse5 ~var_1_4_Pointer~0.offset) 65536))) (or (not (= (mod .cse4 .cse55) 0)) (< (mod (div .cse4 .cse55) 4294967296) .cse1) (forall ((v_ArrVal_2356 (Array Int Int))) (let ((.cse56 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse57 (select (select .cse56 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse58 (mod (select (select .cse56 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (select (select .cse56 c_~var_1_20_Pointer~0.base) c_~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse57 .cse58) 4294967296)) (not (= (mod .cse57 .cse58) 0))))))))))) is different from true [2023-11-06 22:05:10,864 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| c_~var_1_20_Pointer~0.base))) (and (forall ((v_z_3 Int) (~var_1_20_Pointer~0.offset Int) (v_y_3 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse3 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_3 (* v_y_3 4294967296)))))) (let ((.cse4 (store .cse3 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse0 (mod (select (select .cse4 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse1 (div (select (select .cse4 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse4 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse2 (select (select .cse3 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< .cse0 (mod .cse1 4294967296)) (< .cse0 (mod (+ .cse1 1) 4294967296)) (< v_z_3 0) (< (mod (div .cse2 (mod (select (select .cse3 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_3 1)) (< .cse2 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_16 Int) (v_y_16 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse11 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_16 (* v_y_16 4294967296)))))) (let ((.cse10 (store .cse11 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse8 (div (select (select .cse11 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse11 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse9 (+ v_z_16 1)) (.cse6 (mod (select (select .cse10 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse7 (div (select (select .cse10 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse10 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse6 (mod (+ .cse7 1) 4294967296)) (< (mod .cse8 4294967296) .cse9) (< v_z_16 0) (< (mod (+ .cse8 1) 4294967296) .cse9) (< .cse6 (mod .cse7 4294967296))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_5 Int) (v_y_5 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse15 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_5 (* v_y_5 4294967296)))))) (let ((.cse13 (store .cse15 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse12 (select (select .cse13 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse14 (select (select .cse15 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< .cse12 0) (< (mod (select (select .cse13 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse12 (mod (select (select .cse13 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< .cse14 0) (< (mod (div .cse14 (mod (select (select .cse15 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_5 1)) (< v_z_5 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_10 Int) (v_y_10 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse21 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_10 4294967296) v_z_10))))) (let ((.cse18 (store .cse21 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse16 (select (select .cse21 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse17 (mod (select (select .cse21 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse19 (select (select .cse18 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse20 (mod (select (select .cse18 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< v_z_10 0) (= (mod .cse16 .cse17) 0) (< (mod (select (select .cse18 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse19 .cse20) 4294967296)) (< 0 (+ .cse16 1)) (< (mod (+ (div .cse16 .cse17) 1) 4294967296) (+ v_z_10 1)) (not (= (mod .cse19 .cse20) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_18 Int) (v_y_18 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse26 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_18 4294967296) v_z_18))))) (let ((.cse23 (store .cse26 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse22 (select (select .cse23 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse24 (select (select .cse26 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse25 (mod (select (select .cse26 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< .cse22 0) (< (mod (select (select .cse23 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse22 (mod (select (select .cse23 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< v_z_18 0) (< (mod (div .cse24 .cse25) 4294967296) (+ v_z_18 1)) (not (= (mod .cse24 .cse25) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_y_8 Int) (v_z_8 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse32 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_8 4294967296) v_z_8))))) (let ((.cse30 (store .cse32 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse28 (mod (select (select .cse32 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse27 (select (select .cse32 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse29 (select (select .cse30 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse31 (mod (select (select .cse30 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (+ (div .cse27 .cse28) 1) 4294967296) (+ v_z_8 1)) (= (mod .cse27 .cse28) 0) (< v_z_8 0) (< 0 (+ .cse29 1)) (< (mod (select (select .cse30 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse29 .cse31) 1) 4294967296)) (< 0 (+ 1 .cse27)) (= (mod .cse29 .cse31) 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_y_20 Int) (v_z_20 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse38 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_20 (* v_y_20 4294967296)))))) (let ((.cse35 (store .cse38 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse33 (select (select .cse35 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse34 (mod (select (select .cse35 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse36 (div (select (select .cse38 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse38 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse37 (+ v_z_20 1))) (or (not (= (mod .cse33 .cse34) 0)) (< (mod (select (select .cse35 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse33 .cse34) 4294967296)) (< (mod .cse36 4294967296) .cse37) (< (mod (+ .cse36 1) 4294967296) .cse37) (< v_z_20 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_y_6 Int) (v_ArrVal_2356 (Array Int Int)) (v_z_6 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse40 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_6 4294967296) v_z_6))))) (let ((.cse41 (store .cse40 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse42 (select (select .cse41 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse43 (mod (select (select .cse41 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse39 (select (select .cse40 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< (mod (div .cse39 (mod (select (select .cse40 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_6 1)) (< v_z_6 0) (< (mod (select (select .cse41 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse42 .cse43) 4294967296)) (not (= (mod .cse42 .cse43) 0)) (< .cse39 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_2 Int) (v_y_2 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse49 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_2 4294967296) v_z_2))))) (let ((.cse46 (store .cse49 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse47 (select (select .cse46 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse48 (mod (select (select .cse46 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse44 (select (select .cse49 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse45 (mod (select (select .cse49 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (div .cse44 .cse45) 4294967296) (+ v_z_2 1)) (< (mod (select (select .cse46 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse47 .cse48) 4294967296)) (not (= (mod .cse47 .cse48) 0)) (< v_z_2 0) (not (= (mod .cse44 .cse45) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_y_11 Int) (v_z_11 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse54 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_11 4294967296) v_z_11))))) (let ((.cse53 (store .cse54 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse50 (select (select .cse54 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse52 (mod (select (select .cse54 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse51 (select (select .cse53 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< 0 (+ .cse50 1)) (< .cse51 0) (< v_z_11 0) (= (mod .cse50 .cse52) 0) (< (mod (+ (div .cse50 .cse52) 1) 4294967296) (+ v_z_11 1)) (< (mod (select (select .cse53 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse51 (mod (select (select .cse53 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296))))))) (forall ((v_y_12 Int) (~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_12 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse59 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_12 (* v_y_12 4294967296)))))) (let ((.cse55 (store .cse59 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse56 (select (select .cse55 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse57 (div (select (select .cse59 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse59 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse58 (+ v_z_12 1))) (or (< (mod (select (select .cse55 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse56 (mod (select (select .cse55 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< v_z_12 0) (< .cse56 0) (< (mod .cse57 4294967296) .cse58) (< (mod (+ .cse57 1) 4294967296) .cse58)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_9 Int) (v_y_9 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse65 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_9 (* v_y_9 4294967296)))))) (let ((.cse64 (store .cse65 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse60 (select (select .cse65 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse61 (mod (select (select .cse65 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse62 (mod (select (select .cse64 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse63 (div (select (select .cse64 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse64 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (= 0 (mod .cse60 .cse61)) (< v_z_9 0) (< .cse62 (mod (+ .cse63 1) 4294967296)) (< 0 (+ .cse60 1)) (< (mod (+ (div .cse60 .cse61) 1) 4294967296) (+ v_z_9 1)) (< .cse62 (mod .cse63 4294967296))))))) (forall ((v_y_4 Int) (~var_1_20_Pointer~0.offset Int) (v_z_4 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse67 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_4 4294967296) v_z_4))))) (let ((.cse69 (store .cse67 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse66 (select (select .cse67 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse68 (select (select .cse69 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse70 (mod (select (select .cse69 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< .cse66 0) (< v_z_4 0) (< (mod (div .cse66 (mod (select (select .cse67 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_4 1)) (< 0 (+ 1 .cse68)) (< (mod (select (select .cse69 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse68 .cse70) 1) 4294967296)) (= (mod .cse68 .cse70) 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_1 Int) (v_y_1 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse76 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_1 (* v_y_1 4294967296)))))) (let ((.cse71 (store .cse76 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse72 (select (select .cse71 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse73 (mod (select (select .cse71 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse74 (select (select .cse76 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse75 (mod (select (select .cse76 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< v_z_1 0) (< (mod (select (select .cse71 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse72 .cse73) 1) 4294967296)) (< (mod (div .cse74 .cse75) 4294967296) (+ v_z_1 1)) (< 0 (+ .cse72 1)) (= (mod .cse72 .cse73) 0) (not (= (mod .cse74 .cse75) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_7 Int) (v_y_7 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse82 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_7 4294967296) v_z_7))))) (let ((.cse81 (store .cse82 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse77 (select (select .cse82 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse78 (mod (select (select .cse82 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse79 (mod (select (select .cse81 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse80 (div (select (select .cse81 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse81 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< v_z_7 0) (not (= (mod .cse77 .cse78) 0)) (< (mod (div .cse77 .cse78) 4294967296) (+ v_z_7 1)) (< .cse79 (mod (+ .cse80 1) 4294967296)) (< .cse79 (mod .cse80 4294967296))))))) (forall ((v_z_14 Int) (~var_1_20_Pointer~0.offset Int) (v_y_14 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse88 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_14 (* v_y_14 4294967296)))))) (let ((.cse86 (store .cse88 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse83 (select (select .cse86 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse87 (mod (select (select .cse86 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse84 (div (select (select .cse88 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse88 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse85 (+ v_z_14 1))) (or (< 0 (+ .cse83 1)) (< (mod .cse84 4294967296) .cse85) (< (mod (select (select .cse86 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse83 .cse87) 1) 4294967296)) (= (mod .cse83 .cse87) 0) (< v_z_14 0) (< (mod (+ .cse84 1) 4294967296) .cse85)))))))) is different from false [2023-11-06 22:05:12,889 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| c_~var_1_20_Pointer~0.base))) (and (forall ((v_z_3 Int) (~var_1_20_Pointer~0.offset Int) (v_y_3 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse3 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_3 (* v_y_3 4294967296)))))) (let ((.cse4 (store .cse3 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse0 (mod (select (select .cse4 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse1 (div (select (select .cse4 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse4 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse2 (select (select .cse3 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< .cse0 (mod .cse1 4294967296)) (< .cse0 (mod (+ .cse1 1) 4294967296)) (< v_z_3 0) (< (mod (div .cse2 (mod (select (select .cse3 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_3 1)) (< .cse2 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_16 Int) (v_y_16 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse11 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_16 (* v_y_16 4294967296)))))) (let ((.cse10 (store .cse11 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse8 (div (select (select .cse11 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse11 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse9 (+ v_z_16 1)) (.cse6 (mod (select (select .cse10 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse7 (div (select (select .cse10 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse10 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< .cse6 (mod (+ .cse7 1) 4294967296)) (< (mod .cse8 4294967296) .cse9) (< v_z_16 0) (< (mod (+ .cse8 1) 4294967296) .cse9) (< .cse6 (mod .cse7 4294967296))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_5 Int) (v_y_5 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse15 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_5 (* v_y_5 4294967296)))))) (let ((.cse13 (store .cse15 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse12 (select (select .cse13 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse14 (select (select .cse15 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< .cse12 0) (< (mod (select (select .cse13 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse12 (mod (select (select .cse13 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< .cse14 0) (< (mod (div .cse14 (mod (select (select .cse15 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_5 1)) (< v_z_5 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_10 Int) (v_y_10 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse21 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_10 4294967296) v_z_10))))) (let ((.cse18 (store .cse21 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse16 (select (select .cse21 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse17 (mod (select (select .cse21 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse19 (select (select .cse18 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse20 (mod (select (select .cse18 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< v_z_10 0) (= (mod .cse16 .cse17) 0) (< (mod (select (select .cse18 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse19 .cse20) 4294967296)) (< 0 (+ .cse16 1)) (< (mod (+ (div .cse16 .cse17) 1) 4294967296) (+ v_z_10 1)) (not (= (mod .cse19 .cse20) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_18 Int) (v_y_18 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse26 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_18 4294967296) v_z_18))))) (let ((.cse23 (store .cse26 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse22 (select (select .cse23 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse24 (select (select .cse26 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse25 (mod (select (select .cse26 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< .cse22 0) (< (mod (select (select .cse23 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse22 (mod (select (select .cse23 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< v_z_18 0) (< (mod (div .cse24 .cse25) 4294967296) (+ v_z_18 1)) (not (= (mod .cse24 .cse25) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_y_8 Int) (v_z_8 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse32 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_8 4294967296) v_z_8))))) (let ((.cse30 (store .cse32 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse28 (mod (select (select .cse32 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse27 (select (select .cse32 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse29 (select (select .cse30 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse31 (mod (select (select .cse30 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (+ (div .cse27 .cse28) 1) 4294967296) (+ v_z_8 1)) (= (mod .cse27 .cse28) 0) (< v_z_8 0) (< 0 (+ .cse29 1)) (< (mod (select (select .cse30 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse29 .cse31) 1) 4294967296)) (< 0 (+ 1 .cse27)) (= (mod .cse29 .cse31) 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_y_20 Int) (v_z_20 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse38 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_20 (* v_y_20 4294967296)))))) (let ((.cse35 (store .cse38 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse33 (select (select .cse35 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse34 (mod (select (select .cse35 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse36 (div (select (select .cse38 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse38 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse37 (+ v_z_20 1))) (or (not (= (mod .cse33 .cse34) 0)) (< (mod (select (select .cse35 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse33 .cse34) 4294967296)) (< (mod .cse36 4294967296) .cse37) (< (mod (+ .cse36 1) 4294967296) .cse37) (< v_z_20 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_y_6 Int) (v_ArrVal_2356 (Array Int Int)) (v_z_6 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse40 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_6 4294967296) v_z_6))))) (let ((.cse41 (store .cse40 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse42 (select (select .cse41 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse43 (mod (select (select .cse41 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse39 (select (select .cse40 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< (mod (div .cse39 (mod (select (select .cse40 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_6 1)) (< v_z_6 0) (< (mod (select (select .cse41 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse42 .cse43) 4294967296)) (not (= (mod .cse42 .cse43) 0)) (< .cse39 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_2 Int) (v_y_2 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse49 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_2 4294967296) v_z_2))))) (let ((.cse46 (store .cse49 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse47 (select (select .cse46 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse48 (mod (select (select .cse46 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse44 (select (select .cse49 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse45 (mod (select (select .cse49 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< (mod (div .cse44 .cse45) 4294967296) (+ v_z_2 1)) (< (mod (select (select .cse46 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse47 .cse48) 4294967296)) (not (= (mod .cse47 .cse48) 0)) (< v_z_2 0) (not (= (mod .cse44 .cse45) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_y_11 Int) (v_z_11 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse54 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_11 4294967296) v_z_11))))) (let ((.cse53 (store .cse54 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse50 (select (select .cse54 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse52 (mod (select (select .cse54 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse51 (select (select .cse53 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset))) (or (< 0 (+ .cse50 1)) (< .cse51 0) (< v_z_11 0) (= (mod .cse50 .cse52) 0) (< (mod (+ (div .cse50 .cse52) 1) 4294967296) (+ v_z_11 1)) (< (mod (select (select .cse53 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse51 (mod (select (select .cse53 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296))))))) (forall ((v_y_12 Int) (~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_12 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse59 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_12 (* v_y_12 4294967296)))))) (let ((.cse55 (store .cse59 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse56 (select (select .cse55 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse57 (div (select (select .cse59 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse59 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse58 (+ v_z_12 1))) (or (< (mod (select (select .cse55 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (div .cse56 (mod (select (select .cse55 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296)) (< v_z_12 0) (< .cse56 0) (< (mod .cse57 4294967296) .cse58) (< (mod (+ .cse57 1) 4294967296) .cse58)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_9 Int) (v_y_9 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse65 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_9 (* v_y_9 4294967296)))))) (let ((.cse64 (store .cse65 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse60 (select (select .cse65 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse61 (mod (select (select .cse65 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse62 (mod (select (select .cse64 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse63 (div (select (select .cse64 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse64 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (= 0 (mod .cse60 .cse61)) (< v_z_9 0) (< .cse62 (mod (+ .cse63 1) 4294967296)) (< 0 (+ .cse60 1)) (< (mod (+ (div .cse60 .cse61) 1) 4294967296) (+ v_z_9 1)) (< .cse62 (mod .cse63 4294967296))))))) (forall ((v_y_4 Int) (~var_1_20_Pointer~0.offset Int) (v_z_4 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse67 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_4 4294967296) v_z_4))))) (let ((.cse69 (store .cse67 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse66 (select (select .cse67 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse68 (select (select .cse69 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse70 (mod (select (select .cse69 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< .cse66 0) (< v_z_4 0) (< (mod (div .cse66 (mod (select (select .cse67 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) 4294967296) (+ v_z_4 1)) (< 0 (+ 1 .cse68)) (< (mod (select (select .cse69 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse68 .cse70) 1) 4294967296)) (= (mod .cse68 .cse70) 0)))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_z_1 Int) (v_y_1 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse76 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_1 (* v_y_1 4294967296)))))) (let ((.cse71 (store .cse76 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse72 (select (select .cse71 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse73 (mod (select (select .cse71 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse74 (select (select .cse76 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse75 (mod (select (select .cse76 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (or (< v_z_1 0) (< (mod (select (select .cse71 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse72 .cse73) 1) 4294967296)) (< (mod (div .cse74 .cse75) 4294967296) (+ v_z_1 1)) (< 0 (+ .cse72 1)) (= (mod .cse72 .cse73) 0) (not (= (mod .cse74 .cse75) 0))))))) (forall ((~var_1_20_Pointer~0.offset Int) (v_ArrVal_2356 (Array Int Int)) (v_z_7 Int) (v_y_7 Int) (~var_1_4_Pointer~0.offset Int)) (let ((.cse82 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ (* v_y_7 4294967296) v_z_7))))) (let ((.cse81 (store .cse82 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse77 (select (select .cse82 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse78 (mod (select (select .cse82 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse79 (mod (select (select .cse81 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296)) (.cse80 (div (select (select .cse81 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse81 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)))) (or (< v_z_7 0) (not (= (mod .cse77 .cse78) 0)) (< (mod (div .cse77 .cse78) 4294967296) (+ v_z_7 1)) (< .cse79 (mod (+ .cse80 1) 4294967296)) (< .cse79 (mod .cse80 4294967296))))))) (forall ((v_z_14 Int) (~var_1_20_Pointer~0.offset Int) (v_y_14 Int) (v_ArrVal_2356 (Array Int Int)) (~var_1_4_Pointer~0.offset Int)) (let ((.cse88 (store |c_#memory_int| c_~var_1_20_Pointer~0.base (store .cse5 ~var_1_20_Pointer~0.offset (+ v_z_14 (* v_y_14 4294967296)))))) (let ((.cse86 (store .cse88 c_~var_1_1_Pointer~0.base v_ArrVal_2356))) (let ((.cse83 (select (select .cse86 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset)) (.cse87 (mod (select (select .cse86 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536)) (.cse84 (div (select (select .cse88 c_~var_1_18_Pointer~0.base) c_~var_1_18_Pointer~0.offset) (mod (select (select .cse88 c_~var_1_4_Pointer~0.base) ~var_1_4_Pointer~0.offset) 65536))) (.cse85 (+ v_z_14 1))) (or (< 0 (+ .cse83 1)) (< (mod .cse84 4294967296) .cse85) (< (mod (select (select .cse86 c_~var_1_20_Pointer~0.base) ~var_1_20_Pointer~0.offset) 4294967296) (mod (+ (div .cse83 .cse87) 1) 4294967296)) (= (mod .cse83 .cse87) 0) (< v_z_14 0) (< (mod (+ .cse84 1) 4294967296) .cse85)))))))) is different from true