/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:19:14,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:19:14,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:19:14,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:19:14,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:19:14,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:19:14,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:19:14,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:19:14,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:19:14,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:19:14,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:19:14,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:19:14,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:19:14,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:19:14,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:19:14,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:19:14,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:19:14,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:19:14,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:19:14,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:19:14,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-07-14 00:19:14,738 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:19:14,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:19:14,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:19:14,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:19:14,740 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:19:14,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:19:14,741 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:19:14,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:19:14,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:19:14,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:19:14,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:19:14,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:19:14,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:19:14,743 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:19:14,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:19:14,744 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:19:14,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:19:14,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:19:14,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:19:14,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:19:14,997 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:19:14,998 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:19:14,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2021-07-14 00:19:15,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539468285/eeae0740f5894e588e5c100890187f7d/FLAGcac9ed9d9 [2021-07-14 00:19:15,453 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:19:15,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2021-07-14 00:19:15,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539468285/eeae0740f5894e588e5c100890187f7d/FLAGcac9ed9d9 [2021-07-14 00:19:15,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/539468285/eeae0740f5894e588e5c100890187f7d [2021-07-14 00:19:15,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:19:15,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:19:15,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:19:15,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:19:15,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:19:15,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e483b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15, skipping insertion in model container [2021-07-14 00:19:15,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:19:15,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:19:15,645 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i[949,962] [2021-07-14 00:19:15,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:19:15,729 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:19:15,736 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i[949,962] [2021-07-14 00:19:15,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:19:15,780 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:19:15,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15 WrapperNode [2021-07-14 00:19:15,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:19:15,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:19:15,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:19:15,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:19:15,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:19:15,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:19:15,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:19:15,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:19:15,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... [2021-07-14 00:19:15,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:19:15,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:19:15,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:19:15,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:19:15,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:19:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:19:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:19:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:19:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:19:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:19:15,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:19:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:19:15,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:19:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:19:15,978 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:19:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:19:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:19:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:19:15,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:19:15,979 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:19:16,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:19:16,321 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:19:16,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:19:16 BoogieIcfgContainer [2021-07-14 00:19:16,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:19:16,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:19:16,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:19:16,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:19:16,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:19:15" (1/3) ... [2021-07-14 00:19:16,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7debf5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:19:16, skipping insertion in model container [2021-07-14 00:19:16,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:19:15" (2/3) ... [2021-07-14 00:19:16,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7debf5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:19:16, skipping insertion in model container [2021-07-14 00:19:16,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:19:16" (3/3) ... [2021-07-14 00:19:16,330 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2021-07-14 00:19:16,336 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:19:16,336 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:19:16,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:19:16,337 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:19:16,363 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,364 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,364 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,364 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,367 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,374 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,375 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,377 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,377 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,378 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,382 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,383 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:19:16,387 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:19:16,403 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-14 00:19:16,424 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:19:16,424 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:19:16,424 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:19:16,424 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:19:16,424 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:19:16,425 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:19:16,425 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:19:16,425 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:19:16,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 4768 states have (on average 2.028313758389262) internal successors, (9671), 5558 states have internal predecessors, (9671), 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) [2021-07-14 00:19:16,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-07-14 00:19:16,848 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:16,848 INFO L508 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] [2021-07-14 00:19:16,849 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:16,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:16,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-07-14 00:19:16,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:16,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088723726] [2021-07-14 00:19:16,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:17,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:17,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:17,099 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:17,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:17,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:17,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:17,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:17,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:17,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088723726] [2021-07-14 00:19:17,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088723726] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:17,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:17,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:19:17,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687984224] [2021-07-14 00:19:17,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:19:17,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:17,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:19:17,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:19:17,149 INFO L87 Difference]: Start difference. First operand has 5559 states, 4768 states have (on average 2.028313758389262) internal successors, (9671), 5558 states have internal predecessors, (9671), 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 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-07-14 00:19:17,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:17,317 INFO L93 Difference]: Finished difference Result 6343 states and 11237 transitions. [2021-07-14 00:19:17,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:17,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-07-14 00:19:17,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:17,344 INFO L225 Difference]: With dead ends: 6343 [2021-07-14 00:19:17,344 INFO L226 Difference]: Without dead ends: 2488 [2021-07-14 00:19:17,345 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 92.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2021-07-14 00:19:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2021-07-14 00:19:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2439 states have (on average 2.261992619926199) internal successors, (5517), 2487 states have internal predecessors, (5517), 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) [2021-07-14 00:19:17,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 5517 transitions. [2021-07-14 00:19:17,457 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 5517 transitions. Word has length 49 [2021-07-14 00:19:17,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:17,458 INFO L482 AbstractCegarLoop]: Abstraction has 2488 states and 5517 transitions. [2021-07-14 00:19:17,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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) [2021-07-14 00:19:17,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 5517 transitions. [2021-07-14 00:19:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-14 00:19:17,461 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:17,461 INFO L508 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] [2021-07-14 00:19:17,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:19:17,462 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:17,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:17,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1069017409, now seen corresponding path program 1 times [2021-07-14 00:19:17,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:17,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915199826] [2021-07-14 00:19:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:17,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:17,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:17,538 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:17,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:17,546 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:17,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:17,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:17,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:17,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:17,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:17,578 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:17,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915199826] [2021-07-14 00:19:17,578 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915199826] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:17,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:17,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:17,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484801097] [2021-07-14 00:19:17,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:17,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:17,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:17,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:17,580 INFO L87 Difference]: Start difference. First operand 2488 states and 5517 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-07-14 00:19:17,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:17,781 INFO L93 Difference]: Finished difference Result 4014 states and 9611 transitions. [2021-07-14 00:19:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:19:17,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2021-07-14 00:19:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:17,792 INFO L225 Difference]: With dead ends: 4014 [2021-07-14 00:19:17,792 INFO L226 Difference]: Without dead ends: 2746 [2021-07-14 00:19:17,793 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:19:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2021-07-14 00:19:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2089. [2021-07-14 00:19:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2054 states have (on average 2.2775073028237585) internal successors, (4678), 2088 states have internal predecessors, (4678), 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) [2021-07-14 00:19:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 4678 transitions. [2021-07-14 00:19:17,835 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 4678 transitions. Word has length 51 [2021-07-14 00:19:17,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:17,836 INFO L482 AbstractCegarLoop]: Abstraction has 2089 states and 4678 transitions. [2021-07-14 00:19:17,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-07-14 00:19:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 4678 transitions. [2021-07-14 00:19:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-07-14 00:19:17,838 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:17,839 INFO L508 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] [2021-07-14 00:19:17,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:19:17,839 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1880440320, now seen corresponding path program 1 times [2021-07-14 00:19:17,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:17,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417089387] [2021-07-14 00:19:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:17,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:17,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:17,903 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:17,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:17,911 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:17,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:17,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:17,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:17,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:17,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:17,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:17,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417089387] [2021-07-14 00:19:17,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417089387] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:17,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:17,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:17,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791866188] [2021-07-14 00:19:17,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:17,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:17,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:17,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:17,939 INFO L87 Difference]: Start difference. First operand 2089 states and 4678 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-07-14 00:19:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:18,101 INFO L93 Difference]: Finished difference Result 3137 states and 7347 transitions. [2021-07-14 00:19:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 00:19:18,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-07-14 00:19:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:18,111 INFO L225 Difference]: With dead ends: 3137 [2021-07-14 00:19:18,111 INFO L226 Difference]: Without dead ends: 2477 [2021-07-14 00:19:18,111 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 141.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:19:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2021-07-14 00:19:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 1860. [2021-07-14 00:19:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1832 states have (on average 2.2117903930131004) internal successors, (4052), 1859 states have internal predecessors, (4052), 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) [2021-07-14 00:19:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 4052 transitions. [2021-07-14 00:19:18,152 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 4052 transitions. Word has length 53 [2021-07-14 00:19:18,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:18,154 INFO L482 AbstractCegarLoop]: Abstraction has 1860 states and 4052 transitions. [2021-07-14 00:19:18,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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) [2021-07-14 00:19:18,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 4052 transitions. [2021-07-14 00:19:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-14 00:19:18,157 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:18,157 INFO L508 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] [2021-07-14 00:19:18,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:19:18,157 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:18,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:18,159 INFO L82 PathProgramCache]: Analyzing trace with hash 59046754, now seen corresponding path program 1 times [2021-07-14 00:19:18,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:18,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717186667] [2021-07-14 00:19:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:18,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,226 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:18,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:18,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:18,253 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:18,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:18,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:18,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:18,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717186667] [2021-07-14 00:19:18,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717186667] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:18,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:18,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:19:18,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258463411] [2021-07-14 00:19:18,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:19:18,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:18,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:19:18,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:19:18,265 INFO L87 Difference]: Start difference. First operand 1860 states and 4052 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-07-14 00:19:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:18,381 INFO L93 Difference]: Finished difference Result 2393 states and 5032 transitions. [2021-07-14 00:19:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:18,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 54 [2021-07-14 00:19:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:18,389 INFO L225 Difference]: With dead ends: 2393 [2021-07-14 00:19:18,389 INFO L226 Difference]: Without dead ends: 1557 [2021-07-14 00:19:18,390 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 94.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:18,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2021-07-14 00:19:18,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2021-07-14 00:19:18,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1529 states have (on average 2.2321778940483976) internal successors, (3413), 1556 states have internal predecessors, (3413), 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) [2021-07-14 00:19:18,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 3413 transitions. [2021-07-14 00:19:18,461 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 3413 transitions. Word has length 54 [2021-07-14 00:19:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:18,461 INFO L482 AbstractCegarLoop]: Abstraction has 1557 states and 3413 transitions. [2021-07-14 00:19:18,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2021-07-14 00:19:18,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 3413 transitions. [2021-07-14 00:19:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-14 00:19:18,463 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:18,464 INFO L508 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] [2021-07-14 00:19:18,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:19:18,464 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:18,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:18,464 INFO L82 PathProgramCache]: Analyzing trace with hash 846004315, now seen corresponding path program 1 times [2021-07-14 00:19:18,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:18,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216499066] [2021-07-14 00:19:18,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:18,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,516 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:18,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:18,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:18,535 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:18,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:18,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:18,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:18,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216499066] [2021-07-14 00:19:18,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216499066] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:18,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:18,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:18,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192058750] [2021-07-14 00:19:18,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:18,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:18,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:18,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:18,549 INFO L87 Difference]: Start difference. First operand 1557 states and 3413 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-07-14 00:19:18,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:18,657 INFO L93 Difference]: Finished difference Result 1500 states and 3061 transitions. [2021-07-14 00:19:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:19:18,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-07-14 00:19:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:18,660 INFO L225 Difference]: With dead ends: 1500 [2021-07-14 00:19:18,660 INFO L226 Difference]: Without dead ends: 861 [2021-07-14 00:19:18,661 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 80.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:19:18,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2021-07-14 00:19:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 860. [2021-07-14 00:19:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 836 states have (on average 2.1303827751196174) internal successors, (1781), 859 states have internal predecessors, (1781), 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) [2021-07-14 00:19:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1781 transitions. [2021-07-14 00:19:18,674 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1781 transitions. Word has length 55 [2021-07-14 00:19:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:18,674 INFO L482 AbstractCegarLoop]: Abstraction has 860 states and 1781 transitions. [2021-07-14 00:19:18,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-07-14 00:19:18,674 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1781 transitions. [2021-07-14 00:19:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-07-14 00:19:18,675 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:18,676 INFO L508 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] [2021-07-14 00:19:18,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:19:18,676 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:18,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:18,676 INFO L82 PathProgramCache]: Analyzing trace with hash 973387642, now seen corresponding path program 1 times [2021-07-14 00:19:18,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:18,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26558550] [2021-07-14 00:19:18,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:18,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,730 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-14 00:19:18,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-14 00:19:18,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-14 00:19:18,755 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-14 00:19:18,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:18,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:18,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:18,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26558550] [2021-07-14 00:19:18,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26558550] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:18,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:18,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:18,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220031420] [2021-07-14 00:19:18,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:18,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:18,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:18,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:18,767 INFO L87 Difference]: Start difference. First operand 860 states and 1781 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-07-14 00:19:18,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:18,870 INFO L93 Difference]: Finished difference Result 608 states and 1136 transitions. [2021-07-14 00:19:18,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:19:18,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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 57 [2021-07-14 00:19:18,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:18,872 INFO L225 Difference]: With dead ends: 608 [2021-07-14 00:19:18,872 INFO L226 Difference]: Without dead ends: 293 [2021-07-14 00:19:18,872 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 85.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:19:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-07-14 00:19:18,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 286. [2021-07-14 00:19:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 277 states have (on average 1.7978339350180506) internal successors, (498), 285 states have internal predecessors, (498), 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) [2021-07-14 00:19:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 498 transitions. [2021-07-14 00:19:18,876 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 498 transitions. Word has length 57 [2021-07-14 00:19:18,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:18,877 INFO L482 AbstractCegarLoop]: Abstraction has 286 states and 498 transitions. [2021-07-14 00:19:18,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) [2021-07-14 00:19:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 498 transitions. [2021-07-14 00:19:18,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:19:18,878 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:18,878 INFO L508 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] [2021-07-14 00:19:18,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:19:18,878 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:18,878 INFO L82 PathProgramCache]: Analyzing trace with hash -320343354, now seen corresponding path program 1 times [2021-07-14 00:19:18,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:18,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871623357] [2021-07-14 00:19:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:18,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:18,938 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:18,949 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:18,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:18,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:18,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:18,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:18,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:18,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871623357] [2021-07-14 00:19:18,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871623357] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:18,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:18,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:18,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893394137] [2021-07-14 00:19:18,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:18,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:18,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:18,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:18,979 INFO L87 Difference]: Start difference. First operand 286 states and 498 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:19,045 INFO L93 Difference]: Finished difference Result 508 states and 916 transitions. [2021-07-14 00:19:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:19,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2021-07-14 00:19:19,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:19,046 INFO L225 Difference]: With dead ends: 508 [2021-07-14 00:19:19,046 INFO L226 Difference]: Without dead ends: 333 [2021-07-14 00:19:19,047 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:19:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-07-14 00:19:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 281. [2021-07-14 00:19:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 272 states have (on average 1.7941176470588236) internal successors, (488), 280 states have internal predecessors, (488), 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) [2021-07-14 00:19:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 488 transitions. [2021-07-14 00:19:19,051 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 488 transitions. Word has length 61 [2021-07-14 00:19:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:19,051 INFO L482 AbstractCegarLoop]: Abstraction has 281 states and 488 transitions. [2021-07-14 00:19:19,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 488 transitions. [2021-07-14 00:19:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:19:19,052 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:19,052 INFO L508 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] [2021-07-14 00:19:19,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:19:19,052 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:19,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2138169276, now seen corresponding path program 2 times [2021-07-14 00:19:19,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:19,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483741650] [2021-07-14 00:19:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:19,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:19,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:19,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:19,114 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:19,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:19,126 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:19,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:19,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:19,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:19,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:19,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:19,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483741650] [2021-07-14 00:19:19,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483741650] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:19,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:19,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:19,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642198570] [2021-07-14 00:19:19,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:19,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:19,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:19,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:19,157 INFO L87 Difference]: Start difference. First operand 281 states and 488 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:19,216 INFO L93 Difference]: Finished difference Result 429 states and 792 transitions. [2021-07-14 00:19:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 00:19:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2021-07-14 00:19:19,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:19,217 INFO L225 Difference]: With dead ends: 429 [2021-07-14 00:19:19,217 INFO L226 Difference]: Without dead ends: 278 [2021-07-14 00:19:19,218 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:19:19,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-07-14 00:19:19,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 262. [2021-07-14 00:19:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 253 states have (on average 1.7984189723320159) internal successors, (455), 261 states have internal predecessors, (455), 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) [2021-07-14 00:19:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 455 transitions. [2021-07-14 00:19:19,230 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 455 transitions. Word has length 61 [2021-07-14 00:19:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:19,230 INFO L482 AbstractCegarLoop]: Abstraction has 262 states and 455 transitions. [2021-07-14 00:19:19,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,230 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 455 transitions. [2021-07-14 00:19:19,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:19:19,231 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:19,231 INFO L508 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] [2021-07-14 00:19:19,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:19:19,231 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:19,231 INFO L82 PathProgramCache]: Analyzing trace with hash -2093675080, now seen corresponding path program 3 times [2021-07-14 00:19:19,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:19,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497401880] [2021-07-14 00:19:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:19,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:19,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:19,278 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:19,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:19,285 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:19,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:19,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:19,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:19,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:19,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:19,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497401880] [2021-07-14 00:19:19,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497401880] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:19,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:19,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:19:19,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560742530] [2021-07-14 00:19:19,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:19:19,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:19,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:19:19,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:19:19,312 INFO L87 Difference]: Start difference. First operand 262 states and 455 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:19,385 INFO L93 Difference]: Finished difference Result 416 states and 755 transitions. [2021-07-14 00:19:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 00:19:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2021-07-14 00:19:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:19,386 INFO L225 Difference]: With dead ends: 416 [2021-07-14 00:19:19,386 INFO L226 Difference]: Without dead ends: 207 [2021-07-14 00:19:19,386 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:19:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-07-14 00:19:19,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-07-14 00:19:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.8131313131313131) internal successors, (359), 206 states have internal predecessors, (359), 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) [2021-07-14 00:19:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 359 transitions. [2021-07-14 00:19:19,389 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 359 transitions. Word has length 61 [2021-07-14 00:19:19,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:19,389 INFO L482 AbstractCegarLoop]: Abstraction has 207 states and 359 transitions. [2021-07-14 00:19:19,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 359 transitions. [2021-07-14 00:19:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:19:19,390 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:19:19,390 INFO L508 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] [2021-07-14 00:19:19,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:19:19,390 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:19:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:19:19,391 INFO L82 PathProgramCache]: Analyzing trace with hash -302595814, now seen corresponding path program 4 times [2021-07-14 00:19:19,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:19:19,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812131533] [2021-07-14 00:19:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:19:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:19:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:19,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:19:19,438 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:19:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:19:19,447 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:19:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:19:19,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:19,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:19:19,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:19:19,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:19:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:19:19,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:19:19,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812131533] [2021-07-14 00:19:19,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812131533] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:19:19,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:19:19,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:19:19,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406100515] [2021-07-14 00:19:19,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:19:19,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:19:19,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:19:19,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:19:19,486 INFO L87 Difference]: Start difference. First operand 207 states and 359 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:19:19,558 INFO L93 Difference]: Finished difference Result 171 states and 299 transitions. [2021-07-14 00:19:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:19:19,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2021-07-14 00:19:19,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:19:19,559 INFO L225 Difference]: With dead ends: 171 [2021-07-14 00:19:19,559 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:19:19,559 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 92.7ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-07-14 00:19:19,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:19:19,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:19:19,559 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) [2021-07-14 00:19:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:19:19,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-07-14 00:19:19,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:19:19,560 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:19:19,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-14 00:19:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:19:19,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:19:19,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-14 00:19:19,561 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:19:19,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:19:19 BasicIcfg [2021-07-14 00:19:19,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:19:19,563 INFO L168 Benchmark]: Toolchain (without parser) took 4088.19 ms. Allocated memory was 195.0 MB in the beginning and 248.5 MB in the end (delta: 53.5 MB). Free memory was 157.7 MB in the beginning and 94.3 MB in the end (delta: 63.4 MB). Peak memory consumption was 117.4 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:19,564 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 195.0 MB. Free memory is still 175.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:19:19,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.50 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 166.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:19,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.02 ms. Allocated memory is still 195.0 MB. Free memory was 166.8 MB in the beginning and 164.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:19,566 INFO L168 Benchmark]: Boogie Preprocessor took 13.69 ms. Allocated memory is still 195.0 MB. Free memory was 164.7 MB in the beginning and 163.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:19,566 INFO L168 Benchmark]: RCFGBuilder took 502.99 ms. Allocated memory is still 195.0 MB. Free memory was 163.7 MB in the beginning and 139.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:19,566 INFO L168 Benchmark]: TraceAbstraction took 3237.42 ms. Allocated memory was 195.0 MB in the beginning and 248.5 MB in the end (delta: 53.5 MB). Free memory was 139.1 MB in the beginning and 94.3 MB in the end (delta: 44.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 8.0 GB. [2021-07-14 00:19:19,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 195.0 MB. Free memory is still 175.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 304.50 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 166.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.02 ms. Allocated memory is still 195.0 MB. Free memory was 166.8 MB in the beginning and 164.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.69 ms. Allocated memory is still 195.0 MB. Free memory was 164.7 MB in the beginning and 163.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 502.99 ms. Allocated memory is still 195.0 MB. Free memory was 163.7 MB in the beginning and 139.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3237.42 ms. Allocated memory was 195.0 MB in the beginning and 248.5 MB in the end (delta: 53.5 MB). Free memory was 139.1 MB in the beginning and 94.3 MB in the end (delta: 44.8 MB). Peak memory consumption was 98.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18568, positive: 17784, positive conditional: 17784, positive unconditional: 0, negative: 784, negative conditional: 784, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18489, positive: 17784, positive conditional: 0, positive unconditional: 17784, negative: 705, negative conditional: 0, negative unconditional: 705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 663, positive: 643, positive conditional: 0, positive unconditional: 643, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 663, positive: 639, positive conditional: 0, positive unconditional: 639, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 45, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18489, positive: 17141, positive conditional: 0, positive unconditional: 17141, negative: 685, negative conditional: 0, negative unconditional: 685, unknown: 663, unknown conditional: 0, unknown unconditional: 663] , Statistics on independence cache: Total cache size (in pairs): 663, Positive cache size: 643, Positive conditional cache size: 0, Positive unconditional cache size: 643, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Independence queries for same thread: 79 - PositiveResult [Line: 18]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3138.5ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 44.4ms, AutomataDifference: 1219.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 391.5ms, PartialOrderReductionTime: 375.9ms, HoareTripleCheckerStatistics: 904 SDtfs, 1185 SDslu, 3144 SDs, 0 SdLazy, 462 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 266.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 937.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5559occurred in iteration=0, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 293.4ms AutomataMinimizationTime, 10 MinimizatonAttempts, 1350 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.3ms SsaConstructionTime, 158.6ms SatisfiabilityAnalysisTime, 867.9ms InterpolantComputationTime, 563 NumberOfCodeBlocks, 563 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 553 ConstructedInterpolants, 0 QuantifiedInterpolants, 1859 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! Received shutdown request...