/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:43:27,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:43:27,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:43:27,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 01:43:27,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 01:43:27,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 01:43:27,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 01:43:27,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 01:43:27,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 01:43:27,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 01:43:27,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 01:43:27,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 01:43:27,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:43:27,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:43:27,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:43:27,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:43:27,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:43:27,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:43:27,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:43:27,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:43:27,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:43:27,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:43:27,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:43:27,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:43:27,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 01:43:27,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 01:43:27,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 01:43:27,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 01:43:27,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 01:43:27,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 01:43:27,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 01:43:27,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 01:43:27,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 01:43:27,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:43:27,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:43:27,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:43:27,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 01:43:27,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:43:27,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:43:27,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:43:27,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:43:27,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:43:27,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:43:27,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:43:27,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:43:27,857 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:43:27,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:43:27,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:43:27,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:43:27,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:43:27,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:43:27,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:43:27,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:43:27,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:43:27,858 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:43:27,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:43:27,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:43:27,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:43:27,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:43:27,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:43:27,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:43:27,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:43:27,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:43:27,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:43:27,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:43:27,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:43:27,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:43:27,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:43:27,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:43:27,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:43:27,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:43:28,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:43:28,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:43:28,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:43:28,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:43:28,112 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:43:28,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2022-01-18 01:43:28,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a4f65a2/f573da4443f4412d983b366ca34ca2ee/FLAGb92db9160 [2022-01-18 01:43:28,542 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:43:28,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c [2022-01-18 01:43:28,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a4f65a2/f573da4443f4412d983b366ca34ca2ee/FLAGb92db9160 [2022-01-18 01:43:28,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a4f65a2/f573da4443f4412d983b366ca34ca2ee [2022-01-18 01:43:28,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:43:28,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:43:28,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:43:28,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:43:28,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:43:28,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541f7825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28, skipping insertion in model container [2022-01-18 01:43:28,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:43:28,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:43:28,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c[4085,4098] [2022-01-18 01:43:28,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:43:28,791 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:43:28,836 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-ring-nondet.wvr.c[4085,4098] [2022-01-18 01:43:28,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:43:28,860 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:43:28,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28 WrapperNode [2022-01-18 01:43:28,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:43:28,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:43:28,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:43:28,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:43:28,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,923 INFO L137 Inliner]: procedures = 25, calls = 63, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 317 [2022-01-18 01:43:28,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:43:28,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:43:28,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:43:28,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:43:28,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:43:28,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:43:28,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:43:28,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:43:28,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (1/1) ... [2022-01-18 01:43:28,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:43:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:28,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 01:43:29,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 01:43:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:43:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:43:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:43:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:43:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:43:29,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:43:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:43:29,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:43:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 01:43:29,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 01:43:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:43:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 01:43:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 01:43:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 01:43:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:43:29,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:43:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:43:29,057 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 01:43:29,200 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:43:29,202 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:43:29,648 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:43:29,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:43:29,768 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-18 01:43:29,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:43:29 BoogieIcfgContainer [2022-01-18 01:43:29,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:43:29,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:43:29,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:43:29,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:43:29,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:43:28" (1/3) ... [2022-01-18 01:43:29,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f62a823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:43:29, skipping insertion in model container [2022-01-18 01:43:29,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:43:28" (2/3) ... [2022-01-18 01:43:29,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f62a823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:43:29, skipping insertion in model container [2022-01-18 01:43:29,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:43:29" (3/3) ... [2022-01-18 01:43:29,780 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2022-01-18 01:43:29,787 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:43:29,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:43:29,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:43:29,788 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:43:29,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,857 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,857 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,857 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,857 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,858 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,860 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,861 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,862 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,863 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,863 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,864 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,865 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,867 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,870 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~short12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~s~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,872 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,872 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,872 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~short17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,873 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,874 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:43:29,877 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 01:43:29,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:43:29,918 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 01:43:29,919 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 01:43:29,930 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 264 places, 279 transitions, 582 flow [2022-01-18 01:43:30,382 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11227 states, 11226 states have (on average 4.098966684482451) internal successors, (46015), 11226 states have internal predecessors, (46015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 11227 states, 11226 states have (on average 4.098966684482451) internal successors, (46015), 11226 states have internal predecessors, (46015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:30,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-01-18 01:43:30,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:30,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:30,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:30,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash -504971611, now seen corresponding path program 1 times [2022-01-18 01:43:30,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:30,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710597641] [2022-01-18 01:43:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:30,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:30,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:30,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710597641] [2022-01-18 01:43:30,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710597641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:30,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:43:30,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 01:43:30,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995729858] [2022-01-18 01:43:30,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:30,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 01:43:30,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 01:43:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:43:31,010 INFO L87 Difference]: Start difference. First operand has 11227 states, 11226 states have (on average 4.098966684482451) internal successors, (46015), 11226 states have internal predecessors, (46015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:31,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:31,264 INFO L93 Difference]: Finished difference Result 11227 states and 40990 transitions. [2022-01-18 01:43:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 01:43:31,267 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2022-01-18 01:43:31,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:31,421 INFO L225 Difference]: With dead ends: 11227 [2022-01-18 01:43:31,421 INFO L226 Difference]: Without dead ends: 10753 [2022-01-18 01:43:31,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 01:43:31,428 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:31,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:43:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10753 states. [2022-01-18 01:43:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10753 to 10753. [2022-01-18 01:43:31,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10753 states, 10752 states have (on average 3.654203869047619) internal successors, (39290), 10752 states have internal predecessors, (39290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:32,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10753 states to 10753 states and 39290 transitions. [2022-01-18 01:43:32,007 INFO L78 Accepts]: Start accepts. Automaton has 10753 states and 39290 transitions. Word has length 191 [2022-01-18 01:43:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:32,008 INFO L470 AbstractCegarLoop]: Abstraction has 10753 states and 39290 transitions. [2022-01-18 01:43:32,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10753 states and 39290 transitions. [2022-01-18 01:43:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-18 01:43:32,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:32,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:32,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:43:32,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash -596102399, now seen corresponding path program 1 times [2022-01-18 01:43:32,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:32,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858221024] [2022-01-18 01:43:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:32,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:32,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:32,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858221024] [2022-01-18 01:43:32,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858221024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:32,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:43:32,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 01:43:32,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113291782] [2022-01-18 01:43:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:32,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 01:43:32,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 01:43:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 01:43:32,405 INFO L87 Difference]: Start difference. First operand 10753 states and 39290 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:32,812 INFO L93 Difference]: Finished difference Result 19943 states and 73336 transitions. [2022-01-18 01:43:32,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 01:43:32,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2022-01-18 01:43:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:32,997 INFO L225 Difference]: With dead ends: 19943 [2022-01-18 01:43:32,997 INFO L226 Difference]: Without dead ends: 17743 [2022-01-18 01:43:32,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 01:43:32,999 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 169 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:32,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 711 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:43:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17743 states. [2022-01-18 01:43:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17743 to 17277. [2022-01-18 01:43:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17277 states, 17276 states have (on average 3.69935170178282) internal successors, (63910), 17276 states have internal predecessors, (63910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17277 states to 17277 states and 63910 transitions. [2022-01-18 01:43:33,755 INFO L78 Accepts]: Start accepts. Automaton has 17277 states and 63910 transitions. Word has length 199 [2022-01-18 01:43:33,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:33,756 INFO L470 AbstractCegarLoop]: Abstraction has 17277 states and 63910 transitions. [2022-01-18 01:43:33,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:33,757 INFO L276 IsEmpty]: Start isEmpty. Operand 17277 states and 63910 transitions. [2022-01-18 01:43:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-18 01:43:33,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:33,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:33,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:43:33,808 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:33,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash -114842098, now seen corresponding path program 1 times [2022-01-18 01:43:33,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:33,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709012363] [2022-01-18 01:43:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:33,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:33,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:33,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709012363] [2022-01-18 01:43:33,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709012363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:33,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:43:33,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:43:33,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397561705] [2022-01-18 01:43:33,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:33,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:43:33,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:33,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:43:33,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:43:33,942 INFO L87 Difference]: Start difference. First operand 17277 states and 63910 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:34,201 INFO L93 Difference]: Finished difference Result 18209 states and 67294 transitions. [2022-01-18 01:43:34,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:43:34,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212 [2022-01-18 01:43:34,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:34,270 INFO L225 Difference]: With dead ends: 18209 [2022-01-18 01:43:34,270 INFO L226 Difference]: Without dead ends: 18209 [2022-01-18 01:43:34,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:43:34,276 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 38 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:34,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 461 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:43:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18209 states. [2022-01-18 01:43:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18209 to 17743. [2022-01-18 01:43:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17743 states, 17742 states have (on average 3.6975538270769923) internal successors, (65602), 17742 states have internal predecessors, (65602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17743 states to 17743 states and 65602 transitions. [2022-01-18 01:43:35,029 INFO L78 Accepts]: Start accepts. Automaton has 17743 states and 65602 transitions. Word has length 212 [2022-01-18 01:43:35,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:35,029 INFO L470 AbstractCegarLoop]: Abstraction has 17743 states and 65602 transitions. [2022-01-18 01:43:35,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 17743 states and 65602 transitions. [2022-01-18 01:43:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-01-18 01:43:35,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:35,080 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:35,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:43:35,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash -326346958, now seen corresponding path program 1 times [2022-01-18 01:43:35,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:35,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135077384] [2022-01-18 01:43:35,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:35,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:35,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:35,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135077384] [2022-01-18 01:43:35,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135077384] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:35,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824161697] [2022-01-18 01:43:35,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:35,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:35,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:35,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 01:43:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:35,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 01:43:35,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:35,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 8 [2022-01-18 01:43:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:35,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:36,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824161697] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:36,094 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:36,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-01-18 01:43:36,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355176133] [2022-01-18 01:43:36,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:36,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:43:36,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:36,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:43:36,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 01:43:36,098 INFO L87 Difference]: Start difference. First operand 17743 states and 65602 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:36,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:36,617 INFO L93 Difference]: Finished difference Result 32818 states and 122470 transitions. [2022-01-18 01:43:36,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:43:36,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2022-01-18 01:43:36,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:36,683 INFO L225 Difference]: With dead ends: 32818 [2022-01-18 01:43:36,683 INFO L226 Difference]: Without dead ends: 15598 [2022-01-18 01:43:36,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 01:43:36,684 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 216 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:36,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 897 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:43:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15598 states. [2022-01-18 01:43:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15598 to 14266. [2022-01-18 01:43:37,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14266 states, 14265 states have (on average 3.5489660007010166) internal successors, (50626), 14265 states have internal predecessors, (50626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:37,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14266 states to 14266 states and 50626 transitions. [2022-01-18 01:43:37,228 INFO L78 Accepts]: Start accepts. Automaton has 14266 states and 50626 transitions. Word has length 224 [2022-01-18 01:43:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:37,228 INFO L470 AbstractCegarLoop]: Abstraction has 14266 states and 50626 transitions. [2022-01-18 01:43:37,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand 14266 states and 50626 transitions. [2022-01-18 01:43:37,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-01-18 01:43:37,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:37,268 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:37,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:37,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:37,494 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:37,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:37,495 INFO L85 PathProgramCache]: Analyzing trace with hash -902524588, now seen corresponding path program 2 times [2022-01-18 01:43:37,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:37,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439765929] [2022-01-18 01:43:37,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:37,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:43:37,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:37,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439765929] [2022-01-18 01:43:37,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439765929] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:37,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959686718] [2022-01-18 01:43:37,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:43:37,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:37,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:37,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:37,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 01:43:37,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 01:43:37,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:37,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 01:43:37,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-18 01:43:38,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 01:43:38,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959686718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:38,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 01:43:38,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-01-18 01:43:38,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901279231] [2022-01-18 01:43:38,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:38,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:43:38,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:38,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:43:38,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:43:38,299 INFO L87 Difference]: Start difference. First operand 14266 states and 50626 transitions. Second operand has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:38,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:38,658 INFO L93 Difference]: Finished difference Result 16962 states and 58583 transitions. [2022-01-18 01:43:38,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 01:43:38,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2022-01-18 01:43:38,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:38,720 INFO L225 Difference]: With dead ends: 16962 [2022-01-18 01:43:38,720 INFO L226 Difference]: Without dead ends: 14272 [2022-01-18 01:43:38,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:43:38,721 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 500 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:38,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [500 Valid, 718 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:43:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14272 states. [2022-01-18 01:43:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14272 to 14267. [2022-01-18 01:43:39,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14267 states, 14266 states have (on average 3.5487873265105847) internal successors, (50627), 14266 states have internal predecessors, (50627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:39,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14267 states to 14267 states and 50627 transitions. [2022-01-18 01:43:39,340 INFO L78 Accepts]: Start accepts. Automaton has 14267 states and 50627 transitions. Word has length 224 [2022-01-18 01:43:39,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:39,341 INFO L470 AbstractCegarLoop]: Abstraction has 14267 states and 50627 transitions. [2022-01-18 01:43:39,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:39,341 INFO L276 IsEmpty]: Start isEmpty. Operand 14267 states and 50627 transitions. [2022-01-18 01:43:39,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 01:43:39,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:39,372 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:39,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:39,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:39,573 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:39,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1935841390, now seen corresponding path program 1 times [2022-01-18 01:43:39,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:39,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380985088] [2022-01-18 01:43:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:39,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:43:39,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:39,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380985088] [2022-01-18 01:43:39,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380985088] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:39,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236412952] [2022-01-18 01:43:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:39,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:39,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:39,781 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:39,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 01:43:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:39,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 01:43:39,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-18 01:43:40,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 01:43:40,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236412952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:40,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 01:43:40,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-01-18 01:43:40,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593414459] [2022-01-18 01:43:40,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:40,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:43:40,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:40,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:43:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:43:40,311 INFO L87 Difference]: Start difference. First operand 14267 states and 50627 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:40,452 INFO L93 Difference]: Finished difference Result 18839 states and 65809 transitions. [2022-01-18 01:43:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:43:40,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 01:43:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:40,535 INFO L225 Difference]: With dead ends: 18839 [2022-01-18 01:43:40,535 INFO L226 Difference]: Without dead ends: 18839 [2022-01-18 01:43:40,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:43:40,536 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 20 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:40,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 430 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:43:40,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18839 states. [2022-01-18 01:43:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18839 to 18839. [2022-01-18 01:43:41,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18839 states, 18838 states have (on average 3.4934175602505575) internal successors, (65809), 18838 states have internal predecessors, (65809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:41,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18839 states to 18839 states and 65809 transitions. [2022-01-18 01:43:41,237 INFO L78 Accepts]: Start accepts. Automaton has 18839 states and 65809 transitions. Word has length 231 [2022-01-18 01:43:41,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:41,238 INFO L470 AbstractCegarLoop]: Abstraction has 18839 states and 65809 transitions. [2022-01-18 01:43:41,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:41,238 INFO L276 IsEmpty]: Start isEmpty. Operand 18839 states and 65809 transitions. [2022-01-18 01:43:41,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-01-18 01:43:41,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:41,287 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:41,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:41,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:41,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:41,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:41,496 INFO L85 PathProgramCache]: Analyzing trace with hash -806406162, now seen corresponding path program 2 times [2022-01-18 01:43:41,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:41,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267752813] [2022-01-18 01:43:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:41,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:41,677 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 01:43:41,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:41,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267752813] [2022-01-18 01:43:41,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267752813] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:41,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781624170] [2022-01-18 01:43:41,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:43:41,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:41,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:41,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:41,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 01:43:41,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 01:43:41,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:41,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-18 01:43:41,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-18 01:43:42,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 01:43:42,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781624170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:42,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 01:43:42,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-18 01:43:42,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770760750] [2022-01-18 01:43:42,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:42,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:43:42,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:42,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:43:42,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:43:42,192 INFO L87 Difference]: Start difference. First operand 18839 states and 65809 transitions. Second operand has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:42,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:42,418 INFO L93 Difference]: Finished difference Result 25708 states and 86488 transitions. [2022-01-18 01:43:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:43:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-01-18 01:43:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:42,506 INFO L225 Difference]: With dead ends: 25708 [2022-01-18 01:43:42,506 INFO L226 Difference]: Without dead ends: 18845 [2022-01-18 01:43:42,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:43:42,507 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 106 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:42,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 802 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:43:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18845 states. [2022-01-18 01:43:43,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18845 to 18840. [2022-01-18 01:43:43,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18840 states, 18839 states have (on average 3.493285206221137) internal successors, (65810), 18839 states have internal predecessors, (65810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18840 states to 18840 states and 65810 transitions. [2022-01-18 01:43:43,226 INFO L78 Accepts]: Start accepts. Automaton has 18840 states and 65810 transitions. Word has length 231 [2022-01-18 01:43:43,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:43,227 INFO L470 AbstractCegarLoop]: Abstraction has 18840 states and 65810 transitions. [2022-01-18 01:43:43,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 18840 states and 65810 transitions. [2022-01-18 01:43:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-01-18 01:43:43,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:43,273 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:43,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:43,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:43,499 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1689920553, now seen corresponding path program 1 times [2022-01-18 01:43:43,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:43,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842365136] [2022-01-18 01:43:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:43,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 01:43:43,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:43,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842365136] [2022-01-18 01:43:43,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842365136] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:43,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248110130] [2022-01-18 01:43:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:43,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:43,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:43,661 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:43,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 01:43:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:43,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 11 conjunts are in the unsatisfiable core [2022-01-18 01:43:43,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-01-18 01:43:44,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 01:43:44,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248110130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:43:44,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 01:43:44,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-18 01:43:44,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778926347] [2022-01-18 01:43:44,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:43:44,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 01:43:44,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:44,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 01:43:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:43:44,512 INFO L87 Difference]: Start difference. First operand 18840 states and 65810 transitions. Second operand has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:44,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:44,773 INFO L93 Difference]: Finished difference Result 28713 states and 98257 transitions. [2022-01-18 01:43:44,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:43:44,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2022-01-18 01:43:44,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:44,841 INFO L225 Difference]: With dead ends: 28713 [2022-01-18 01:43:44,842 INFO L226 Difference]: Without dead ends: 18846 [2022-01-18 01:43:44,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:43:44,842 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 100 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:44,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 966 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:43:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18846 states. [2022-01-18 01:43:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18846 to 18841. [2022-01-18 01:43:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18841 states, 18840 states have (on average 3.4931528662420384) internal successors, (65811), 18840 states have internal predecessors, (65811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 65811 transitions. [2022-01-18 01:43:45,463 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 65811 transitions. Word has length 238 [2022-01-18 01:43:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:45,463 INFO L470 AbstractCegarLoop]: Abstraction has 18841 states and 65811 transitions. [2022-01-18 01:43:45,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.166666666666664) internal successors, (229), 6 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 65811 transitions. [2022-01-18 01:43:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-01-18 01:43:45,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:45,500 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:45,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:45,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:45,702 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1873203746, now seen corresponding path program 1 times [2022-01-18 01:43:45,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:45,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644651054] [2022-01-18 01:43:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:45,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:43:45,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:45,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644651054] [2022-01-18 01:43:45,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644651054] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:45,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110799652] [2022-01-18 01:43:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:45,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:45,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:45,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:45,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 01:43:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:46,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 01:43:46,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-18 01:43:46,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:46,926 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 4 [2022-01-18 01:43:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-18 01:43:47,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110799652] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:47,793 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:47,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-01-18 01:43:47,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015484490] [2022-01-18 01:43:47,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:47,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:43:47,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:47,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:43:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:43:47,795 INFO L87 Difference]: Start difference. First operand 18841 states and 65811 transitions. Second operand has 28 states, 28 states have (on average 18.357142857142858) internal successors, (514), 28 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:50,600 INFO L93 Difference]: Finished difference Result 50952 states and 177544 transitions. [2022-01-18 01:43:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 01:43:50,601 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 18.357142857142858) internal successors, (514), 28 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2022-01-18 01:43:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:50,699 INFO L225 Difference]: With dead ends: 50952 [2022-01-18 01:43:50,700 INFO L226 Difference]: Without dead ends: 32112 [2022-01-18 01:43:50,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2312 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1465, Invalid=7091, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 01:43:50,704 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 3027 mSDsluCounter, 6383 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 6457 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:50,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3027 Valid, 6457 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 01:43:50,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32112 states. [2022-01-18 01:43:51,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32112 to 21158. [2022-01-18 01:43:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21158 states, 21157 states have (on average 3.450300137070473) internal successors, (72998), 21157 states have internal predecessors, (72998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21158 states to 21158 states and 72998 transitions. [2022-01-18 01:43:51,365 INFO L78 Accepts]: Start accepts. Automaton has 21158 states and 72998 transitions. Word has length 245 [2022-01-18 01:43:51,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:51,365 INFO L470 AbstractCegarLoop]: Abstraction has 21158 states and 72998 transitions. [2022-01-18 01:43:51,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 18.357142857142858) internal successors, (514), 28 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 21158 states and 72998 transitions. [2022-01-18 01:43:51,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-01-18 01:43:51,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:51,406 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:51,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:51,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:51,607 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:51,607 INFO L85 PathProgramCache]: Analyzing trace with hash 331105914, now seen corresponding path program 2 times [2022-01-18 01:43:51,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:51,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260966373] [2022-01-18 01:43:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:51,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:43:51,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:51,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260966373] [2022-01-18 01:43:51,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260966373] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:51,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237386130] [2022-01-18 01:43:51,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 01:43:51,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:51,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:51,863 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:51,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 01:43:52,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 01:43:52,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:52,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 01:43:52,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:43:52,917 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2022-01-18 01:43:52,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 01:43:52,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 21 [2022-01-18 01:43:53,000 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 8 [2022-01-18 01:43:53,050 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:43:53,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:53,126 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_348 (Array Int Int))) (not (= 2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_348) c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))) is different from false [2022-01-18 01:43:53,190 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_348 (Array Int Int)) (v_ArrVal_347 (Array Int Int))) (not (= 2 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_347) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_348) c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))) is different from false [2022-01-18 01:43:53,289 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_348 (Array Int Int)) (v_ArrVal_347 (Array Int Int))) (not (= 2 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_347) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_348) c_~q1~0.base) (+ (* c_~q1_back~0 4) c_~q1~0.offset))))) (= 2 |c_thread1Thread1of1ForFork0_#t~mem1#1|)) is different from false [2022-01-18 01:43:53,298 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 84 treesize of output 68 [2022-01-18 01:43:53,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 64 treesize of output 52 [2022-01-18 01:43:53,304 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-01-18 01:43:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 9 not checked. [2022-01-18 01:43:54,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237386130] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:54,200 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:54,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 27 [2022-01-18 01:43:54,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482046463] [2022-01-18 01:43:54,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:54,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 01:43:54,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 01:43:54,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=486, Unknown=3, NotChecked=138, Total=702 [2022-01-18 01:43:54,203 INFO L87 Difference]: Start difference. First operand 21158 states and 72998 transitions. Second operand has 27 states, 27 states have (on average 17.74074074074074) internal successors, (479), 27 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:55,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:43:55,696 INFO L93 Difference]: Finished difference Result 53769 states and 190422 transitions. [2022-01-18 01:43:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 01:43:55,696 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 17.74074074074074) internal successors, (479), 27 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2022-01-18 01:43:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:43:55,810 INFO L225 Difference]: With dead ends: 53769 [2022-01-18 01:43:55,811 INFO L226 Difference]: Without dead ends: 37492 [2022-01-18 01:43:55,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 478 SyntacticMatches, 18 SemanticMatches, 44 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=392, Invalid=1423, Unknown=3, NotChecked=252, Total=2070 [2022-01-18 01:43:55,812 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 1529 mSDsluCounter, 3532 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1154 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:43:55,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1529 Valid, 3569 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 895 Invalid, 0 Unknown, 1154 Unchecked, 0.4s Time] [2022-01-18 01:43:55,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37492 states. [2022-01-18 01:43:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37492 to 25314. [2022-01-18 01:43:56,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25314 states, 25313 states have (on average 3.4536404219175916) internal successors, (87422), 25313 states have internal predecessors, (87422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25314 states to 25314 states and 87422 transitions. [2022-01-18 01:43:56,600 INFO L78 Accepts]: Start accepts. Automaton has 25314 states and 87422 transitions. Word has length 245 [2022-01-18 01:43:56,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:43:56,601 INFO L470 AbstractCegarLoop]: Abstraction has 25314 states and 87422 transitions. [2022-01-18 01:43:56,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 17.74074074074074) internal successors, (479), 27 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:43:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 25314 states and 87422 transitions. [2022-01-18 01:43:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-01-18 01:43:56,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:43:56,650 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:43:56,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 01:43:56,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:56,851 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:43:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:43:56,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1469883112, now seen corresponding path program 3 times [2022-01-18 01:43:56,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:43:56,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217416624] [2022-01-18 01:43:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:43:56,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:43:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:43:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 01:43:57,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:43:57,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217416624] [2022-01-18 01:43:57,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217416624] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 01:43:57,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474189144] [2022-01-18 01:43:57,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 01:43:57,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 01:43:57,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:43:57,083 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 01:43:57,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 01:43:57,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 01:43:57,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 01:43:57,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 01:43:57,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 01:43:58,051 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 3 [2022-01-18 01:43:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-18 01:43:58,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 01:43:58,256 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 4 [2022-01-18 01:43:59,086 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-18 01:43:59,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474189144] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 01:43:59,086 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 01:43:59,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 30 [2022-01-18 01:43:59,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322140984] [2022-01-18 01:43:59,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 01:43:59,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 01:43:59,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:43:59,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 01:43:59,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2022-01-18 01:43:59,089 INFO L87 Difference]: Start difference. First operand 25314 states and 87422 transitions. Second operand has 30 states, 30 states have (on average 17.0) internal successors, (510), 30 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:44:00,918 INFO L93 Difference]: Finished difference Result 24671 states and 82750 transitions. [2022-01-18 01:44:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 01:44:00,918 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 17.0) internal successors, (510), 30 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2022-01-18 01:44:00,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:44:00,919 INFO L225 Difference]: With dead ends: 24671 [2022-01-18 01:44:00,919 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 01:44:00,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=962, Invalid=5044, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 01:44:00,921 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 1906 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:44:00,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1906 Valid, 4136 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 01:44:00,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 01:44:00,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 01:44:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:00,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 01:44:00,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 245 [2022-01-18 01:44:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:44:00,922 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 01:44:00,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 17.0) internal successors, (510), 30 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:44:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 01:44:00,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 01:44:00,925 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 01:44:00,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 01:44:00,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 01:44:00,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 01:44:00,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 01:44:01,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-18 01:44:01,142 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1] [2022-01-18 01:44:01,143 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 01:44:01,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 01:44:01,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:44:01 BasicIcfg [2022-01-18 01:44:01,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 01:44:01,146 INFO L158 Benchmark]: Toolchain (without parser) took 32583.53ms. Allocated memory was 358.6MB in the beginning and 10.4GB in the end (delta: 10.0GB). Free memory was 304.4MB in the beginning and 8.9GB in the end (delta: -8.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.0GB. [2022-01-18 01:44:01,146 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory is still 322.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:44:01,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.40ms. Allocated memory is still 358.6MB. Free memory was 304.2MB in the beginning and 328.8MB in the end (delta: -24.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. [2022-01-18 01:44:01,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.96ms. Allocated memory is still 358.6MB. Free memory was 328.8MB in the beginning and 326.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:44:01,146 INFO L158 Benchmark]: Boogie Preprocessor took 31.43ms. Allocated memory is still 358.6MB. Free memory was 326.7MB in the beginning and 324.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:44:01,146 INFO L158 Benchmark]: RCFGBuilder took 816.57ms. Allocated memory is still 358.6MB. Free memory was 324.6MB in the beginning and 289.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. [2022-01-18 01:44:01,147 INFO L158 Benchmark]: TraceAbstraction took 31371.26ms. Allocated memory was 358.6MB in the beginning and 10.4GB in the end (delta: 10.0GB). Free memory was 287.9MB in the beginning and 8.9GB in the end (delta: -8.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.0GB. [2022-01-18 01:44:01,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 358.6MB. Free memory is still 322.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 296.40ms. Allocated memory is still 358.6MB. Free memory was 304.2MB in the beginning and 328.8MB in the end (delta: -24.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.96ms. Allocated memory is still 358.6MB. Free memory was 328.8MB in the beginning and 326.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.43ms. Allocated memory is still 358.6MB. Free memory was 326.7MB in the beginning and 324.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 816.57ms. Allocated memory is still 358.6MB. Free memory was 324.6MB in the beginning and 289.0MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.0GB. * TraceAbstraction took 31371.26ms. Allocated memory was 358.6MB in the beginning and 10.4GB in the end (delta: 10.0GB). Free memory was 287.9MB in the beginning and 8.9GB in the end (delta: -8.6GB). Peak memory consumption was 1.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 156]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 301 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 31.2s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.7s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7611 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7611 mSDsluCounter, 19382 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1154 IncrementalHoareTripleChecker+Unchecked, 17393 mSDsCounter, 304 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4793 IncrementalHoareTripleChecker+Invalid, 6251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 304 mSolverCounterUnsat, 2950 mSDtfsCounter, 4793 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3098 GetRequests, 2797 SyntacticMatches, 18 SemanticMatches, 283 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 4517 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25314occurred in iteration=10, InterpolantAutomatonStates: 192, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 25411 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 4368 NumberOfCodeBlocks, 4237 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 5304 ConstructedInterpolants, 26 QuantifiedInterpolants, 21254 SizeOfPredicates, 84 NumberOfNonLiveVariables, 4082 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 233/276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 01:44:01,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...