/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 11:22:51,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 11:22:51,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 11:22:51,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 11:22:51,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 11:22:51,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 11:22:51,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 11:22:51,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 11:22:51,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 11:22:51,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 11:22:51,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 11:22:51,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 11:22:51,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 11:22:51,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 11:22:51,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 11:22:51,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 11:22:51,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 11:22:51,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 11:22:51,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 11:22:51,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 11:22:51,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 11:22:51,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 11:22:51,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 11:22:51,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 11:22:51,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 11:22:51,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 11:22:51,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 11:22:51,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 11:22:51,592 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-SemanticLbe.epf [2021-03-11 11:22:51,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 11:22:51,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 11:22:51,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 11:22:51,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 11:22:51,613 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 11:22:51,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 11:22:51,613 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 11:22:51,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 11:22:51,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 11:22:51,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 11:22:51,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 11:22:51,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 11:22:51,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 11:22:51,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 11:22:51,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 11:22:51,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 11:22:51,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 11:22:51,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 11:22:51,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 11:22:51,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 11:22:51,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 11:22:51,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 11:22:51,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 11:22:51,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 11:22:51,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 11:22:51,937 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 11:22:51,938 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 11:22:51,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-03-11 11:22:51,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60b26a5e/9e7f24e60ca745fcb61c3626e089f6f4/FLAG2fa0e5046 [2021-03-11 11:22:52,512 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 11:22:52,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-03-11 11:22:52,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60b26a5e/9e7f24e60ca745fcb61c3626e089f6f4/FLAG2fa0e5046 [2021-03-11 11:22:52,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60b26a5e/9e7f24e60ca745fcb61c3626e089f6f4 [2021-03-11 11:22:52,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 11:22:52,844 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 11:22:52,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 11:22:52,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 11:22:52,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 11:22:52,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 11:22:52" (1/1) ... [2021-03-11 11:22:52,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6fc2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:52, skipping insertion in model container [2021-03-11 11:22:52,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 11:22:52" (1/1) ... [2021-03-11 11:22:52,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 11:22:52,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 11:22:52,996 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i[949,962] [2021-03-11 11:22:53,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 11:22:53,196 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 11:22:53,206 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i[949,962] [2021-03-11 11:22:53,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 11:22:53,320 INFO L208 MainTranslator]: Completed translation [2021-03-11 11:22:53,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53 WrapperNode [2021-03-11 11:22:53,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 11:22:53,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 11:22:53,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 11:22:53,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 11:22:53,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 11:22:53,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 11:22:53,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 11:22:53,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 11:22:53,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (1/1) ... [2021-03-11 11:22:53,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 11:22:53,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 11:22:53,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 11:22:53,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 11:22:53,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (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 [2021-03-11 11:22:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 11:22:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 11:22:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 11:22:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 11:22:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-11 11:22:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-11 11:22:53,506 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-11 11:22:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-11 11:22:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-11 11:22:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-11 11:22:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-11 11:22:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-11 11:22:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 11:22:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 11:22:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 11:22:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 11:22:53,509 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 11:22:53,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 11:22:53,966 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-11 11:22:53,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 11:22:53 BoogieIcfgContainer [2021-03-11 11:22:53,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 11:22:53,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 11:22:53,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 11:22:53,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 11:22:53,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 11:22:52" (1/3) ... [2021-03-11 11:22:53,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e904b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 11:22:53, skipping insertion in model container [2021-03-11 11:22:53,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 11:22:53" (2/3) ... [2021-03-11 11:22:53,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e904b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 11:22:53, skipping insertion in model container [2021-03-11 11:22:53,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 11:22:53" (3/3) ... [2021-03-11 11:22:53,976 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2021-03-11 11:22:53,981 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 11:22:53,982 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 11:22:53,985 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 11:22:53,986 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 11:22:54,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,020 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,021 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,022 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,023 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,023 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,024 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,024 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,024 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,024 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,031 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,031 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,032 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,032 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,034 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,036 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 11:22:54,037 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 11:22:54,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 11:22:54,067 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 11:22:54,067 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 11:22:54,067 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 11:22:54,067 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 11:22:54,067 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 11:22:54,068 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 11:22:54,068 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 11:22:54,068 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 11:22:54,078 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 11:22:54,087 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 85 transitions, 190 flow [2021-03-11 11:22:54,089 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 85 transitions, 190 flow [2021-03-11 11:22:54,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-03-11 11:22:54,122 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-03-11 11:22:54,123 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 11:22:54,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-11 11:22:54,128 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-03-11 11:22:56,660 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-11 11:22:56,843 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-11 11:22:56,913 INFO L131 LiptonReduction]: Checked pairs total: 3277 [2021-03-11 11:22:56,913 INFO L133 LiptonReduction]: Total number of compositions: 70 [2021-03-11 11:22:56,919 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2021-03-11 11:22:56,962 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 850 states, 848 states have (on average 3.7004716981132075) internal successors, (3138), 849 states have internal predecessors, (3138), 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) [2021-03-11 11:22:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 850 states, 848 states have (on average 3.7004716981132075) internal successors, (3138), 849 states have internal predecessors, (3138), 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) [2021-03-11 11:22:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 11:22:56,972 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:56,973 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:56,973 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:56,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:56,977 INFO L82 PathProgramCache]: Analyzing trace with hash 598950965, now seen corresponding path program 1 times [2021-03-11 11:22:56,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:56,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365504085] [2021-03-11 11:22:56,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:57,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:57,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:57,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:57,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:57,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365504085] [2021-03-11 11:22:57,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:57,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:22:57,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544246805] [2021-03-11 11:22:57,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 11:22:57,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:57,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 11:22:57,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 11:22:57,173 INFO L87 Difference]: Start difference. First operand has 850 states, 848 states have (on average 3.7004716981132075) internal successors, (3138), 849 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-03-11 11:22:57,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:57,208 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2021-03-11 11:22:57,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 11:22:57,210 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-03-11 11:22:57,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:57,237 INFO L225 Difference]: With dead ends: 850 [2021-03-11 11:22:57,238 INFO L226 Difference]: Without dead ends: 706 [2021-03-11 11:22:57,238 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 11:22:57,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-03-11 11:22:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2021-03-11 11:22:57,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 705 states have (on average 3.4638297872340424) internal successors, (2442), 705 states have internal predecessors, (2442), 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) [2021-03-11 11:22:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2021-03-11 11:22:57,376 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2021-03-11 11:22:57,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:57,377 INFO L480 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2021-03-11 11:22:57,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-03-11 11:22:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2021-03-11 11:22:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-03-11 11:22:57,386 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:57,386 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:57,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 11:22:57,386 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:57,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:57,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1387604623, now seen corresponding path program 1 times [2021-03-11 11:22:57,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:57,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193119897] [2021-03-11 11:22:57,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:57,538 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:22:57,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:22:57,565 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:57,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:57,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193119897] [2021-03-11 11:22:57,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:57,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:22:57,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333977733] [2021-03-11 11:22:57,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 11:22:57,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:57,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 11:22:57,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 11:22:57,575 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-03-11 11:22:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:57,633 INFO L93 Difference]: Finished difference Result 1412 states and 4631 transitions. [2021-03-11 11:22:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:22:57,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-03-11 11:22:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:57,643 INFO L225 Difference]: With dead ends: 1412 [2021-03-11 11:22:57,643 INFO L226 Difference]: Without dead ends: 1104 [2021-03-11 11:22:57,644 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2021-03-11 11:22:57,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 904. [2021-03-11 11:22:57,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 903 states have (on average 3.326688815060908) internal successors, (3004), 903 states have internal predecessors, (3004), 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) [2021-03-11 11:22:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 3004 transitions. [2021-03-11 11:22:57,722 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 3004 transitions. Word has length 11 [2021-03-11 11:22:57,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:57,722 INFO L480 AbstractCegarLoop]: Abstraction has 904 states and 3004 transitions. [2021-03-11 11:22:57,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-03-11 11:22:57,722 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 3004 transitions. [2021-03-11 11:22:57,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 11:22:57,724 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:57,724 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:57,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 11:22:57,725 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:57,733 INFO L82 PathProgramCache]: Analyzing trace with hash -329849847, now seen corresponding path program 1 times [2021-03-11 11:22:57,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:57,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401087609] [2021-03-11 11:22:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:57,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:57,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:57,804 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:57,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:57,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401087609] [2021-03-11 11:22:57,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:57,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 11:22:57,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978541516] [2021-03-11 11:22:57,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 11:22:57,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:57,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 11:22:57,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 11:22:57,812 INFO L87 Difference]: Start difference. First operand 904 states and 3004 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-03-11 11:22:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:57,841 INFO L93 Difference]: Finished difference Result 974 states and 3148 transitions. [2021-03-11 11:22:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:22:57,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-03-11 11:22:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:57,846 INFO L225 Difference]: With dead ends: 974 [2021-03-11 11:22:57,846 INFO L226 Difference]: Without dead ends: 834 [2021-03-11 11:22:57,847 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-03-11 11:22:57,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 786. [2021-03-11 11:22:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 3.2840764331210193) internal successors, (2578), 785 states have internal predecessors, (2578), 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) [2021-03-11 11:22:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 2578 transitions. [2021-03-11 11:22:57,876 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 2578 transitions. Word has length 12 [2021-03-11 11:22:57,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:57,877 INFO L480 AbstractCegarLoop]: Abstraction has 786 states and 2578 transitions. [2021-03-11 11:22:57,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-03-11 11:22:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 2578 transitions. [2021-03-11 11:22:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 11:22:57,878 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:57,878 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:57,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 11:22:57,879 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:57,880 INFO L82 PathProgramCache]: Analyzing trace with hash -531474023, now seen corresponding path program 1 times [2021-03-11 11:22:57,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:57,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851517717] [2021-03-11 11:22:57,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:57,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:57,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:57,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:57,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:57,954 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:57,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:57,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:57,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851517717] [2021-03-11 11:22:57,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:57,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:22:57,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780915622] [2021-03-11 11:22:57,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:57,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:57,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:57,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:57,962 INFO L87 Difference]: Start difference. First operand 786 states and 2578 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-03-11 11:22:58,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,017 INFO L93 Difference]: Finished difference Result 1186 states and 3769 transitions. [2021-03-11 11:22:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 11:22:58,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-03-11 11:22:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,021 INFO L225 Difference]: With dead ends: 1186 [2021-03-11 11:22:58,021 INFO L226 Difference]: Without dead ends: 646 [2021-03-11 11:22:58,022 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-11 11:22:58,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-03-11 11:22:58,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2021-03-11 11:22:58,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 645 states have (on average 3.1410852713178294) internal successors, (2026), 645 states have internal predecessors, (2026), 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) [2021-03-11 11:22:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 2026 transitions. [2021-03-11 11:22:58,040 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 2026 transitions. Word has length 12 [2021-03-11 11:22:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,040 INFO L480 AbstractCegarLoop]: Abstraction has 646 states and 2026 transitions. [2021-03-11 11:22:58,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-03-11 11:22:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 2026 transitions. [2021-03-11 11:22:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 11:22:58,042 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,042 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 11:22:58,042 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1149643418, now seen corresponding path program 1 times [2021-03-11 11:22:58,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932792851] [2021-03-11 11:22:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,100 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:22:58,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:22:58,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:58,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932792851] [2021-03-11 11:22:58,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:22:58,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568382209] [2021-03-11 11:22:58,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:58,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:58,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:58,119 INFO L87 Difference]: Start difference. First operand 646 states and 2026 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-03-11 11:22:58,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,181 INFO L93 Difference]: Finished difference Result 896 states and 2671 transitions. [2021-03-11 11:22:58,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:22:58,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-03-11 11:22:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,186 INFO L225 Difference]: With dead ends: 896 [2021-03-11 11:22:58,186 INFO L226 Difference]: Without dead ends: 746 [2021-03-11 11:22:58,187 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-03-11 11:22:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 594. [2021-03-11 11:22:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 3.0893760539629005) internal successors, (1832), 593 states have internal predecessors, (1832), 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) [2021-03-11 11:22:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 1832 transitions. [2021-03-11 11:22:58,204 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 1832 transitions. Word has length 13 [2021-03-11 11:22:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,205 INFO L480 AbstractCegarLoop]: Abstraction has 594 states and 1832 transitions. [2021-03-11 11:22:58,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-03-11 11:22:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 1832 transitions. [2021-03-11 11:22:58,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-03-11 11:22:58,206 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,206 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 11:22:58,206 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1280246773, now seen corresponding path program 1 times [2021-03-11 11:22:58,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061484434] [2021-03-11 11:22:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,267 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:22:58,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:22:58,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:58,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061484434] [2021-03-11 11:22:58,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:22:58,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237888626] [2021-03-11 11:22:58,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:58,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:58,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:58,290 INFO L87 Difference]: Start difference. First operand 594 states and 1832 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-03-11 11:22:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,339 INFO L93 Difference]: Finished difference Result 786 states and 2360 transitions. [2021-03-11 11:22:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:22:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-03-11 11:22:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,344 INFO L225 Difference]: With dead ends: 786 [2021-03-11 11:22:58,344 INFO L226 Difference]: Without dead ends: 730 [2021-03-11 11:22:58,345 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:58,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-03-11 11:22:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 554. [2021-03-11 11:22:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 3.0669077757685352) internal successors, (1696), 553 states have internal predecessors, (1696), 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) [2021-03-11 11:22:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1696 transitions. [2021-03-11 11:22:58,362 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1696 transitions. Word has length 14 [2021-03-11 11:22:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,362 INFO L480 AbstractCegarLoop]: Abstraction has 554 states and 1696 transitions. [2021-03-11 11:22:58,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-03-11 11:22:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1696 transitions. [2021-03-11 11:22:58,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 11:22:58,364 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,364 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 11:22:58,364 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,365 INFO L82 PathProgramCache]: Analyzing trace with hash -291697084, now seen corresponding path program 1 times [2021-03-11 11:22:58,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975228405] [2021-03-11 11:22:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:58,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,412 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:22:58,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:22:58,429 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:58,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975228405] [2021-03-11 11:22:58,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 11:22:58,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772024834] [2021-03-11 11:22:58,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 11:22:58,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 11:22:58,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:22:58,437 INFO L87 Difference]: Start difference. First operand 554 states and 1696 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,497 INFO L93 Difference]: Finished difference Result 1062 states and 3076 transitions. [2021-03-11 11:22:58,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 11:22:58,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2021-03-11 11:22:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,500 INFO L225 Difference]: With dead ends: 1062 [2021-03-11 11:22:58,500 INFO L226 Difference]: Without dead ends: 546 [2021-03-11 11:22:58,501 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 41.8ms TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-03-11 11:22:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-03-11 11:22:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 434. [2021-03-11 11:22:58,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 433 states have (on average 2.840646651270208) internal successors, (1230), 433 states have internal predecessors, (1230), 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) [2021-03-11 11:22:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1230 transitions. [2021-03-11 11:22:58,513 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1230 transitions. Word has length 15 [2021-03-11 11:22:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,513 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 1230 transitions. [2021-03-11 11:22:58,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1230 transitions. [2021-03-11 11:22:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 11:22:58,514 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,514 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 11:22:58,515 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,515 INFO L82 PathProgramCache]: Analyzing trace with hash -20965295, now seen corresponding path program 1 times [2021-03-11 11:22:58,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509937373] [2021-03-11 11:22:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,573 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:58,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509937373] [2021-03-11 11:22:58,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:22:58,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792901534] [2021-03-11 11:22:58,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:58,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:58,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:58,582 INFO L87 Difference]: Start difference. First operand 434 states and 1230 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,609 INFO L93 Difference]: Finished difference Result 546 states and 1510 transitions. [2021-03-11 11:22:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:22:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-03-11 11:22:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,611 INFO L225 Difference]: With dead ends: 546 [2021-03-11 11:22:58,611 INFO L226 Difference]: Without dead ends: 270 [2021-03-11 11:22:58,612 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:58,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-03-11 11:22:58,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2021-03-11 11:22:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 269 states have (on average 2.79182156133829) internal successors, (751), 269 states have internal predecessors, (751), 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) [2021-03-11 11:22:58,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 751 transitions. [2021-03-11 11:22:58,620 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 751 transitions. Word has length 15 [2021-03-11 11:22:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,620 INFO L480 AbstractCegarLoop]: Abstraction has 270 states and 751 transitions. [2021-03-11 11:22:58,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 751 transitions. [2021-03-11 11:22:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 11:22:58,621 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,621 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 11:22:58,621 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,622 INFO L82 PathProgramCache]: Analyzing trace with hash -734267971, now seen corresponding path program 1 times [2021-03-11 11:22:58,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412966462] [2021-03-11 11:22:58,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:58,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,659 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-11 11:22:58,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 11:22:58,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:58,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412966462] [2021-03-11 11:22:58,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:22:58,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991439694] [2021-03-11 11:22:58,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:58,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:58,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:58,676 INFO L87 Difference]: Start difference. First operand 270 states and 751 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,717 INFO L93 Difference]: Finished difference Result 418 states and 1107 transitions. [2021-03-11 11:22:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:22:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-03-11 11:22:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,719 INFO L225 Difference]: With dead ends: 418 [2021-03-11 11:22:58,719 INFO L226 Difference]: Without dead ends: 310 [2021-03-11 11:22:58,720 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-03-11 11:22:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 246. [2021-03-11 11:22:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 2.706122448979592) internal successors, (663), 245 states have internal predecessors, (663), 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) [2021-03-11 11:22:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 663 transitions. [2021-03-11 11:22:58,727 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 663 transitions. Word has length 15 [2021-03-11 11:22:58,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,728 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 663 transitions. [2021-03-11 11:22:58,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 663 transitions. [2021-03-11 11:22:58,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-11 11:22:58,728 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,729 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 11:22:58,729 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1033953691, now seen corresponding path program 2 times [2021-03-11 11:22:58,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127328579] [2021-03-11 11:22:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:22:58,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127328579] [2021-03-11 11:22:58,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 11:22:58,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773923732] [2021-03-11 11:22:58,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 11:22:58,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 11:22:58,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 11:22:58,792 INFO L87 Difference]: Start difference. First operand 246 states and 663 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,817 INFO L93 Difference]: Finished difference Result 291 states and 720 transitions. [2021-03-11 11:22:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 11:22:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-03-11 11:22:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,820 INFO L225 Difference]: With dead ends: 291 [2021-03-11 11:22:58,820 INFO L226 Difference]: Without dead ends: 222 [2021-03-11 11:22:58,820 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:58,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-03-11 11:22:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-03-11 11:22:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 2.524886877828054) internal successors, (558), 221 states have internal predecessors, (558), 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) [2021-03-11 11:22:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 558 transitions. [2021-03-11 11:22:58,827 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 558 transitions. Word has length 15 [2021-03-11 11:22:58,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,829 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 558 transitions. [2021-03-11 11:22:58,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-03-11 11:22:58,829 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 558 transitions. [2021-03-11 11:22:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-03-11 11:22:58,830 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,830 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 11:22:58,830 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,831 INFO L82 PathProgramCache]: Analyzing trace with hash 425270034, now seen corresponding path program 1 times [2021-03-11 11:22:58,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54683092] [2021-03-11 11:22:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:22:58,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:58,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54683092] [2021-03-11 11:22:58,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:22:58,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334792113] [2021-03-11 11:22:58,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:58,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:58,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:58,890 INFO L87 Difference]: Start difference. First operand 222 states and 558 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-03-11 11:22:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:58,927 INFO L93 Difference]: Finished difference Result 219 states and 489 transitions. [2021-03-11 11:22:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 11:22:58,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-03-11 11:22:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:58,929 INFO L225 Difference]: With dead ends: 219 [2021-03-11 11:22:58,929 INFO L226 Difference]: Without dead ends: 166 [2021-03-11 11:22:58,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.4ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:22:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-03-11 11:22:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-03-11 11:22:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 2.2) internal successors, (363), 165 states have internal predecessors, (363), 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) [2021-03-11 11:22:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 363 transitions. [2021-03-11 11:22:58,934 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 363 transitions. Word has length 16 [2021-03-11 11:22:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:58,935 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 363 transitions. [2021-03-11 11:22:58,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-03-11 11:22:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 363 transitions. [2021-03-11 11:22:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-03-11 11:22:58,936 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:58,936 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:58,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 11:22:58,937 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:58,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:58,937 INFO L82 PathProgramCache]: Analyzing trace with hash 297638520, now seen corresponding path program 1 times [2021-03-11 11:22:58,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:58,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948607404] [2021-03-11 11:22:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:58,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:58,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:22:58,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:58,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:58,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:58,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948607404] [2021-03-11 11:22:58,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:58,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 11:22:58,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959191894] [2021-03-11 11:22:58,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 11:22:58,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:58,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 11:22:58,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-11 11:22:58,997 INFO L87 Difference]: Start difference. First operand 166 states and 363 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-03-11 11:22:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:59,045 INFO L93 Difference]: Finished difference Result 142 states and 292 transitions. [2021-03-11 11:22:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:22:59,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2021-03-11 11:22:59,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:59,047 INFO L225 Difference]: With dead ends: 142 [2021-03-11 11:22:59,047 INFO L226 Difference]: Without dead ends: 103 [2021-03-11 11:22:59,047 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.3ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-03-11 11:22:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-03-11 11:22:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 2.0098039215686274) internal successors, (205), 102 states have internal predecessors, (205), 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) [2021-03-11 11:22:59,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 205 transitions. [2021-03-11 11:22:59,050 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 205 transitions. Word has length 17 [2021-03-11 11:22:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:59,050 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 205 transitions. [2021-03-11 11:22:59,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-03-11 11:22:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 205 transitions. [2021-03-11 11:22:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 11:22:59,050 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:59,051 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:59,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 11:22:59,051 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:59,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:59,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1036633620, now seen corresponding path program 1 times [2021-03-11 11:22:59,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:59,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330068247] [2021-03-11 11:22:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:59,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:59,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:59,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:59,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-11 11:22:59,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 11:22:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:59,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330068247] [2021-03-11 11:22:59,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:59,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 11:22:59,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207160886] [2021-03-11 11:22:59,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 11:22:59,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:59,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 11:22:59,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 11:22:59,109 INFO L87 Difference]: Start difference. First operand 103 states and 205 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-03-11 11:22:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:59,145 INFO L93 Difference]: Finished difference Result 117 states and 222 transitions. [2021-03-11 11:22:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 11:22:59,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2021-03-11 11:22:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:59,146 INFO L225 Difference]: With dead ends: 117 [2021-03-11 11:22:59,146 INFO L226 Difference]: Without dead ends: 93 [2021-03-11 11:22:59,146 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-03-11 11:22:59,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-03-11 11:22:59,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.8777777777777778) internal successors, (169), 90 states have internal predecessors, (169), 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) [2021-03-11 11:22:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 169 transitions. [2021-03-11 11:22:59,149 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 169 transitions. Word has length 19 [2021-03-11 11:22:59,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:59,149 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 169 transitions. [2021-03-11 11:22:59,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-03-11 11:22:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 169 transitions. [2021-03-11 11:22:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 11:22:59,150 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 11:22:59,150 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 11:22:59,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 11:22:59,150 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 11:22:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 11:22:59,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1488644708, now seen corresponding path program 2 times [2021-03-11 11:22:59,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 11:22:59,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897468361] [2021-03-11 11:22:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 11:22:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 11:22:59,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:59,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:59,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:59,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 11:22:59,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 11:22:59,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 11:22:59,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 11:22:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 11:22:59,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897468361] [2021-03-11 11:22:59,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 11:22:59,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 11:22:59,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4543403] [2021-03-11 11:22:59,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 11:22:59,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 11:22:59,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 11:22:59,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 11:22:59,204 INFO L87 Difference]: Start difference. First operand 91 states and 169 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-03-11 11:22:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 11:22:59,236 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2021-03-11 11:22:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 11:22:59,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2021-03-11 11:22:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 11:22:59,236 INFO L225 Difference]: With dead ends: 81 [2021-03-11 11:22:59,236 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 11:22:59,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 24.7ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-03-11 11:22:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 11:22:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 11:22:59,238 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) [2021-03-11 11:22:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 11:22:59,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-03-11 11:22:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 11:22:59,238 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 11:22:59,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-03-11 11:22:59,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 11:22:59,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 11:22:59,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 11:22:59,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 11:22:59 BasicIcfg [2021-03-11 11:22:59,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 11:22:59,244 INFO L168 Benchmark]: Toolchain (without parser) took 6401.28 ms. Allocated memory was 255.9 MB in the beginning and 434.1 MB in the end (delta: 178.3 MB). Free memory was 232.9 MB in the beginning and 389.3 MB in the end (delta: -156.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.0 GB. [2021-03-11 11:22:59,244 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 11:22:59,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.74 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.3 MB in the beginning and 323.2 MB in the end (delta: -90.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 11:22:59,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.23 ms. Allocated memory is still 360.7 MB. Free memory was 323.2 MB in the beginning and 321.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 11:22:59,247 INFO L168 Benchmark]: Boogie Preprocessor took 33.90 ms. Allocated memory is still 360.7 MB. Free memory was 321.6 MB in the beginning and 320.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 11:22:59,248 INFO L168 Benchmark]: RCFGBuilder took 549.62 ms. Allocated memory is still 360.7 MB. Free memory was 320.0 MB in the beginning and 334.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.0 GB. [2021-03-11 11:22:59,249 INFO L168 Benchmark]: TraceAbstraction took 5271.32 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 334.0 MB in the beginning and 389.3 MB in the end (delta: -55.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.0 GB. [2021-03-11 11:22:59,254 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 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 476.74 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.3 MB in the beginning and 323.2 MB in the end (delta: -90.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.23 ms. Allocated memory is still 360.7 MB. Free memory was 323.2 MB in the beginning and 321.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.90 ms. Allocated memory is still 360.7 MB. Free memory was 321.6 MB in the beginning and 320.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 549.62 ms. Allocated memory is still 360.7 MB. Free memory was 320.0 MB in the beginning and 334.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5271.32 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 334.0 MB in the beginning and 389.3 MB in the end (delta: -55.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2824.1ms, 96 PlacesBefore, 39 PlacesAfterwards, 85 TransitionsBefore, 27 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 3277 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1856, positive: 1777, positive conditional: 0, positive unconditional: 1777, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1251, positive: 1208, positive conditional: 0, positive unconditional: 1208, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1251, positive: 1197, positive conditional: 0, positive unconditional: 1197, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 167, negative conditional: 0, negative unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1856, positive: 569, positive conditional: 0, positive unconditional: 569, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 1251, unknown conditional: 0, unknown unconditional: 1251] , Statistics on independence cache: Total cache size (in pairs): 102, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5173.9ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 27.4ms, AutomataDifference: 707.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2894.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 401 SDtfs, 427 SDslu, 752 SDs, 0 SdLazy, 281 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 219.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 337.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=904occurred in iteration=2, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 326.1ms AutomataMinimizationTime, 14 MinimizatonAttempts, 754 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.5ms SsaConstructionTime, 230.6ms SatisfiabilityAnalysisTime, 718.1ms InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 818 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...