/usr/bin/java -Xmx8000000000 -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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 02:13:59,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 02:13:59,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 02:13:59,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 02:13:59,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 02:13:59,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 02:13:59,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 02:13:59,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 02:13:59,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 02:13:59,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 02:13:59,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 02:13:59,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 02:13:59,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 02:13:59,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 02:13:59,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 02:13:59,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 02:13:59,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 02:13:59,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 02:13:59,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 02:13:59,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 02:13:59,363 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 02:13:59,404 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 02:13:59,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 02:13:59,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 02:13:59,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 02:13:59,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 02:13:59,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 02:13:59,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 02:13:59,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 02:13:59,406 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 02:13:59,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 02:13:59,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 02:13:59,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 02:13:59,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 02:13:59,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 02:13:59,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 02:13:59,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 02:13:59,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 02:13:59,409 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 02:13:59,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 02:13:59,409 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 02:13:59,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 02:13:59,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 02:13:59,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 02:13:59,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 02:13:59,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 02:13:59,650 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 02:13:59,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-02-10 02:13:59,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4edda10ed/b31c59262ff04c358f488fa33a59e034/FLAG89f968dc4 [2022-02-10 02:14:00,097 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 02:14:00,098 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2022-02-10 02:14:00,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4edda10ed/b31c59262ff04c358f488fa33a59e034/FLAG89f968dc4 [2022-02-10 02:14:00,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4edda10ed/b31c59262ff04c358f488fa33a59e034 [2022-02-10 02:14:00,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 02:14:00,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 02:14:00,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 02:14:00,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 02:14:00,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 02:14:00,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4a4f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00, skipping insertion in model container [2022-02-10 02:14:00,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 02:14:00,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 02:14:00,362 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/chl-sre-symm.wvr.c[2133,2146] [2022-02-10 02:14:00,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 02:14:00,372 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 02:14:00,392 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/chl-sre-symm.wvr.c[2133,2146] [2022-02-10 02:14:00,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 02:14:00,402 INFO L208 MainTranslator]: Completed translation [2022-02-10 02:14:00,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00 WrapperNode [2022-02-10 02:14:00,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 02:14:00,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 02:14:00,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 02:14:00,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 02:14:00,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,434 INFO L137 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-02-10 02:14:00,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 02:14:00,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 02:14:00,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 02:14:00,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 02:14:00,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 02:14:00,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 02:14:00,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 02:14:00,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 02:14:00,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (1/1) ... [2022-02-10 02:14:00,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 02:14:00,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 02:14:00,506 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) [2022-02-10 02:14:00,507 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 [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 02:14:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 02:14:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 02:14:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 02:14:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 02:14:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 02:14:00,530 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 02:14:00,579 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 02:14:00,580 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 02:14:00,762 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 02:14:00,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 02:14:00,768 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 02:14:00,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:14:00 BoogieIcfgContainer [2022-02-10 02:14:00,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 02:14:00,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 02:14:00,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 02:14:00,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 02:14:00,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 02:14:00" (1/3) ... [2022-02-10 02:14:00,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b20acb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:14:00, skipping insertion in model container [2022-02-10 02:14:00,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 02:14:00" (2/3) ... [2022-02-10 02:14:00,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b20acb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 02:14:00, skipping insertion in model container [2022-02-10 02:14:00,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 02:14:00" (3/3) ... [2022-02-10 02:14:00,777 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2022-02-10 02:14:00,780 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 02:14:00,780 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 02:14:00,780 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 02:14:00,780 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 02:14:00,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,842 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,843 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,844 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,845 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,846 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 02:14:00,857 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 02:14:00,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 02:14:00,907 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, mLazyFiniteAutomaton=false, 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 [2022-02-10 02:14:00,908 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 02:14:00,919 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions, 220 flow [2022-02-10 02:14:00,997 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 734 states, 733 states have (on average 2.671214188267394) internal successors, (1958), 733 states have internal predecessors, (1958), 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) [2022-02-10 02:14:01,494 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 18689 transitions and produced 7818 states. [2022-02-10 02:14:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 7818 states, 6841 states have (on average 1.1751205964040345) internal successors, (8039), 7817 states have internal predecessors, (8039), 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) [2022-02-10 02:14:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-10 02:14:01,781 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:01,781 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] [2022-02-10 02:14:01,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:01,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:01,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1777020924, now seen corresponding path program 1 times [2022-02-10 02:14:01,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:01,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031524097] [2022-02-10 02:14:01,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:01,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:02,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:02,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031524097] [2022-02-10 02:14:02,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031524097] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:02,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:02,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 02:14:02,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881571798] [2022-02-10 02:14:02,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:02,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 02:14:02,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:02,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 02:14:02,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-10 02:14:02,233 INFO L87 Difference]: Start difference. First operand has 7818 states, 6841 states have (on average 1.1751205964040345) internal successors, (8039), 7817 states have internal predecessors, (8039), 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 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2022-02-10 02:14:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:02,571 INFO L93 Difference]: Finished difference Result 7559 states and 7734 transitions. [2022-02-10 02:14:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 02:14:02,574 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 73 [2022-02-10 02:14:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:02,590 INFO L225 Difference]: With dead ends: 7559 [2022-02-10 02:14:02,590 INFO L226 Difference]: Without dead ends: 846 [2022-02-10 02:14:02,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-02-10 02:14:02,600 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 176 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:02,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 502 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:14:02,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-02-10 02:14:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 131. [2022-02-10 02:14:02,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.1307692307692307) internal successors, (147), 130 states have internal predecessors, (147), 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) [2022-02-10 02:14:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 147 transitions. [2022-02-10 02:14:02,648 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 147 transitions. Word has length 73 [2022-02-10 02:14:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:02,649 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 147 transitions. [2022-02-10 02:14:02,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2022-02-10 02:14:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 147 transitions. [2022-02-10 02:14:02,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-10 02:14:02,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:02,650 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] [2022-02-10 02:14:02,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 02:14:02,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:02,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:02,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1334153209, now seen corresponding path program 1 times [2022-02-10 02:14:02,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:02,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913546479] [2022-02-10 02:14:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:02,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:02,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:02,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913546479] [2022-02-10 02:14:02,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913546479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:02,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:02,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 02:14:02,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017178591] [2022-02-10 02:14:02,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:02,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 02:14:02,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:02,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 02:14:02,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 02:14:02,719 INFO L87 Difference]: Start difference. First operand 131 states and 147 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-02-10 02:14:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:02,749 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2022-02-10 02:14:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 02:14:02,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-02-10 02:14:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:02,750 INFO L225 Difference]: With dead ends: 180 [2022-02-10 02:14:02,750 INFO L226 Difference]: Without dead ends: 172 [2022-02-10 02:14:02,751 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 [2022-02-10 02:14:02,752 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 46 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:02,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 151 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:02,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-02-10 02:14:02,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 123. [2022-02-10 02:14:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.1229508196721312) internal successors, (137), 122 states have internal predecessors, (137), 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) [2022-02-10 02:14:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2022-02-10 02:14:02,763 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 75 [2022-02-10 02:14:02,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:02,764 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2022-02-10 02:14:02,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-02-10 02:14:02,764 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2022-02-10 02:14:02,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-10 02:14:02,767 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:02,767 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] [2022-02-10 02:14:02,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 02:14:02,767 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash -373633353, now seen corresponding path program 1 times [2022-02-10 02:14:02,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:02,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72397595] [2022-02-10 02:14:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:02,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:02,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:02,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72397595] [2022-02-10 02:14:02,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72397595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:02,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:02,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 02:14:02,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427778807] [2022-02-10 02:14:02,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:02,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 02:14:02,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 02:14:02,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 02:14:02,820 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-02-10 02:14:02,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:02,838 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2022-02-10 02:14:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 02:14:02,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-02-10 02:14:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:02,841 INFO L225 Difference]: With dead ends: 110 [2022-02-10 02:14:02,841 INFO L226 Difference]: Without dead ends: 110 [2022-02-10 02:14:02,841 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 [2022-02-10 02:14:02,842 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 44 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:02,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 102 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:02,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-10 02:14:02,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-02-10 02:14:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.0825688073394495) internal successors, (118), 109 states have internal predecessors, (118), 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) [2022-02-10 02:14:02,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 118 transitions. [2022-02-10 02:14:02,845 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 118 transitions. Word has length 75 [2022-02-10 02:14:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:02,845 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 118 transitions. [2022-02-10 02:14:02,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-02-10 02:14:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 118 transitions. [2022-02-10 02:14:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:14:02,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:02,846 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] [2022-02-10 02:14:02,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 02:14:02,846 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:02,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:02,846 INFO L85 PathProgramCache]: Analyzing trace with hash -618138322, now seen corresponding path program 1 times [2022-02-10 02:14:02,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:02,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566523908] [2022-02-10 02:14:02,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:02,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:02,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:02,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566523908] [2022-02-10 02:14:02,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566523908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:02,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:02,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 02:14:02,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786243054] [2022-02-10 02:14:02,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:02,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 02:14:02,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:02,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 02:14:02,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 02:14:02,911 INFO L87 Difference]: Start difference. First operand 110 states and 118 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-02-10 02:14:02,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:02,955 INFO L93 Difference]: Finished difference Result 193 states and 199 transitions. [2022-02-10 02:14:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 02:14:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2022-02-10 02:14:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:02,957 INFO L225 Difference]: With dead ends: 193 [2022-02-10 02:14:02,957 INFO L226 Difference]: Without dead ends: 193 [2022-02-10 02:14:02,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 02:14:02,958 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 127 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:02,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 271 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-02-10 02:14:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 117. [2022-02-10 02:14:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.0689655172413792) internal successors, (124), 116 states have internal predecessors, (124), 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) [2022-02-10 02:14:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2022-02-10 02:14:02,962 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 77 [2022-02-10 02:14:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:02,962 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2022-02-10 02:14:02,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-02-10 02:14:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2022-02-10 02:14:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:14:02,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:02,963 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] [2022-02-10 02:14:02,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 02:14:02,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:02,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash 91982094, now seen corresponding path program 1 times [2022-02-10 02:14:02,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:02,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707829390] [2022-02-10 02:14:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:02,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:03,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:03,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707829390] [2022-02-10 02:14:03,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707829390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:03,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:03,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 02:14:03,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621981026] [2022-02-10 02:14:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:03,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 02:14:03,127 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:03,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 02:14:03,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 02:14:03,128 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:03,282 INFO L93 Difference]: Finished difference Result 185 states and 191 transitions. [2022-02-10 02:14:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 02:14:03,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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 77 [2022-02-10 02:14:03,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:03,284 INFO L225 Difference]: With dead ends: 185 [2022-02-10 02:14:03,284 INFO L226 Difference]: Without dead ends: 144 [2022-02-10 02:14:03,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-02-10 02:14:03,286 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 65 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:03,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 680 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 02:14:03,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-02-10 02:14:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 106. [2022-02-10 02:14:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0571428571428572) internal successors, (111), 105 states have internal predecessors, (111), 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) [2022-02-10 02:14:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 111 transitions. [2022-02-10 02:14:03,296 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 111 transitions. Word has length 77 [2022-02-10 02:14:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:03,297 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 111 transitions. [2022-02-10 02:14:03,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,297 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 111 transitions. [2022-02-10 02:14:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:14:03,298 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:03,298 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] [2022-02-10 02:14:03,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 02:14:03,299 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2105251916, now seen corresponding path program 2 times [2022-02-10 02:14:03,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:03,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149247326] [2022-02-10 02:14:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:03,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:03,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:03,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:03,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149247326] [2022-02-10 02:14:03,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149247326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:03,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:03,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 02:14:03,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445606350] [2022-02-10 02:14:03,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:03,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 02:14:03,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:03,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 02:14:03,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 02:14:03,385 INFO L87 Difference]: Start difference. First operand 106 states and 111 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:03,403 INFO L93 Difference]: Finished difference Result 105 states and 109 transitions. [2022-02-10 02:14:03,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 02:14:03,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 77 [2022-02-10 02:14:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:03,404 INFO L225 Difference]: With dead ends: 105 [2022-02-10 02:14:03,404 INFO L226 Difference]: Without dead ends: 105 [2022-02-10 02:14:03,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 02:14:03,405 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 58 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:03,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 129 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-02-10 02:14:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 98. [2022-02-10 02:14:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 97 states have internal predecessors, (102), 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) [2022-02-10 02:14:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2022-02-10 02:14:03,408 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 77 [2022-02-10 02:14:03,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:03,408 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2022-02-10 02:14:03,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,408 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2022-02-10 02:14:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:14:03,409 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:03,409 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] [2022-02-10 02:14:03,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 02:14:03,409 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:03,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash 530411476, now seen corresponding path program 1 times [2022-02-10 02:14:03,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:03,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063763564] [2022-02-10 02:14:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:03,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:03,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:03,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063763564] [2022-02-10 02:14:03,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063763564] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:03,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:03,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 02:14:03,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14909533] [2022-02-10 02:14:03,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:03,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 02:14:03,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:03,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 02:14:03,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-02-10 02:14:03,518 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:03,616 INFO L93 Difference]: Finished difference Result 128 states and 131 transitions. [2022-02-10 02:14:03,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 02:14:03,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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 77 [2022-02-10 02:14:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:03,617 INFO L225 Difference]: With dead ends: 128 [2022-02-10 02:14:03,617 INFO L226 Difference]: Without dead ends: 88 [2022-02-10 02:14:03,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-02-10 02:14:03,618 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 29 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:03,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 330 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-02-10 02:14:03,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-02-10 02:14:03,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 87 states have internal predecessors, (89), 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) [2022-02-10 02:14:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2022-02-10 02:14:03,620 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 77 [2022-02-10 02:14:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:03,620 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2022-02-10 02:14:03,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2022-02-10 02:14:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:14:03,621 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:03,621 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] [2022-02-10 02:14:03,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 02:14:03,621 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:03,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1069307892, now seen corresponding path program 1 times [2022-02-10 02:14:03,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:03,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245413724] [2022-02-10 02:14:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:03,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:03,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:03,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245413724] [2022-02-10 02:14:03,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245413724] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:03,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:03,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 02:14:03,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804713242] [2022-02-10 02:14:03,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:03,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 02:14:03,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:03,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 02:14:03,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 02:14:03,680 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:03,699 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2022-02-10 02:14:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 02:14:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 77 [2022-02-10 02:14:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:03,700 INFO L225 Difference]: With dead ends: 88 [2022-02-10 02:14:03,700 INFO L226 Difference]: Without dead ends: 78 [2022-02-10 02:14:03,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 02:14:03,701 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 71 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:03,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 100 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:03,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-02-10 02:14:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-02-10 02:14:03,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.0) internal successors, (77), 77 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 77 transitions. [2022-02-10 02:14:03,703 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 77 transitions. Word has length 77 [2022-02-10 02:14:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:03,703 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 77 transitions. [2022-02-10 02:14:03,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 77 transitions. [2022-02-10 02:14:03,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-10 02:14:03,704 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 02:14:03,704 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] [2022-02-10 02:14:03,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 02:14:03,704 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 02:14:03,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 02:14:03,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1492878256, now seen corresponding path program 2 times [2022-02-10 02:14:03,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 02:14:03,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705919449] [2022-02-10 02:14:03,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 02:14:03,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 02:14:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 02:14:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 02:14:03,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 02:14:03,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705919449] [2022-02-10 02:14:03,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705919449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 02:14:03,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 02:14:03,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 02:14:03,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191608896] [2022-02-10 02:14:03,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 02:14:03,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 02:14:03,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 02:14:03,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 02:14:03,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 02:14:03,773 INFO L87 Difference]: Start difference. First operand 78 states and 77 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 02:14:03,782 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2022-02-10 02:14:03,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 02:14:03,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 77 [2022-02-10 02:14:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 02:14:03,782 INFO L225 Difference]: With dead ends: 39 [2022-02-10 02:14:03,782 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 02:14:03,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 02:14:03,783 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 02:14:03,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 02:14:03,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 02:14:03,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 02:14:03,784 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) [2022-02-10 02:14:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 02:14:03,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-02-10 02:14:03,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 02:14:03,785 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 02:14:03,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-02-10 02:14:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 02:14:03,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 02:14:03,787 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 02:14:03,787 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 02:14:03,787 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 02:14:03,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 02:14:03,789 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-02-10 02:14:03,790 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 02:14:03,790 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 02:14:03,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 02:14:03 BasicIcfg [2022-02-10 02:14:03,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 02:14:03,792 INFO L158 Benchmark]: Toolchain (without parser) took 3663.14ms. Allocated memory was 219.2MB in the beginning and 477.1MB in the end (delta: 257.9MB). Free memory was 172.9MB in the beginning and 330.8MB in the end (delta: -157.9MB). Peak memory consumption was 101.1MB. Max. memory is 8.0GB. [2022-02-10 02:14:03,792 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory is still 189.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 02:14:03,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.20ms. Allocated memory is still 219.2MB. Free memory was 172.6MB in the beginning and 194.9MB in the end (delta: -22.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-10 02:14:03,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.69ms. Allocated memory is still 219.2MB. Free memory was 194.9MB in the beginning and 193.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 02:14:03,793 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 219.2MB. Free memory was 193.3MB in the beginning and 192.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 02:14:03,793 INFO L158 Benchmark]: RCFGBuilder took 302.43ms. Allocated memory is still 219.2MB. Free memory was 192.2MB in the beginning and 180.2MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-10 02:14:03,793 INFO L158 Benchmark]: TraceAbstraction took 3021.52ms. Allocated memory was 219.2MB in the beginning and 477.1MB in the end (delta: 257.9MB). Free memory was 179.7MB in the beginning and 330.8MB in the end (delta: -151.1MB). Peak memory consumption was 107.9MB. Max. memory is 8.0GB. [2022-02-10 02:14:03,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 219.2MB. Free memory is still 189.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.20ms. Allocated memory is still 219.2MB. Free memory was 172.6MB in the beginning and 194.9MB in the end (delta: -22.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.69ms. Allocated memory is still 219.2MB. Free memory was 194.9MB in the beginning and 193.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 219.2MB. Free memory was 193.3MB in the beginning and 192.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 302.43ms. Allocated memory is still 219.2MB. Free memory was 192.2MB in the beginning and 180.2MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3021.52ms. Allocated memory was 219.2MB in the beginning and 477.1MB in the end (delta: 257.9MB). Free memory was 179.7MB in the beginning and 330.8MB in the end (delta: -151.1MB). Peak memory consumption was 107.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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: 69]: 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 5 procedures, 122 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, PartialOrderReductionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 618 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 618 mSDsluCounter, 2359 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1773 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 679 mSDtfsCounter, 447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7818occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 885 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 685 NumberOfCodeBlocks, 685 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 676 ConstructedInterpolants, 0 QuantifiedInterpolants, 1631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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! [2022-02-10 02:14:03,825 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...