/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:08:51,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:08:51,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:08:51,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:08:51,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:08:51,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:08:51,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:08:51,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:08:51,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:08:51,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:08:51,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:08:51,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:08:51,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:08:51,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:08:51,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:08:51,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:08:51,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:08:51,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:08:51,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:08:51,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:08:51,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:08:51,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:08:51,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:08:51,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:08:51,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:08:51,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:08:51,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:08:51,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:08:51,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:08:51,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:08:51,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:08:51,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:08:51,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:08:51,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:08:51,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:08:51,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:08:51,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-11-11 18:08:51,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:08:51,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:08:51,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:08:51,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:08:51,460 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:08:51,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:08:51,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:08:51,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:08:51,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:08:51,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:08:51,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:08:51,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:08:51,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:08:51,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:08:51,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:08:51,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:08:51,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:08:51,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:08:51,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:08:51,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:08:51,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:08:51,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:08:51,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:08:51,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:08:51,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:08:51,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:08:51,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:08:51,468 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:08:51,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:08:51,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:08:51,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:08:51,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:08:51,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:08:51,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:08:51,972 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:08:51,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-11-11 18:08:52,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b93fac0/0d04216f295e4da3ba5a7610faaff073/FLAG3b7036ed6 [2020-11-11 18:08:52,746 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:08:52,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-11-11 18:08:52,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b93fac0/0d04216f295e4da3ba5a7610faaff073/FLAG3b7036ed6 [2020-11-11 18:08:53,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b93fac0/0d04216f295e4da3ba5a7610faaff073 [2020-11-11 18:08:53,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:08:53,049 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:08:53,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:08:53,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:08:53,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:08:53,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bf8021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53, skipping insertion in model container [2020-11-11 18:08:53,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:08:53,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:08:53,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:08:53,559 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:08:53,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:08:53,724 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:08:53,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53 WrapperNode [2020-11-11 18:08:53,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:08:53,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:08:53,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:08:53,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:08:53,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:08:53,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:08:53,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:08:53,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:08:53,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (1/1) ... [2020-11-11 18:08:53,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:08:53,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:08:53,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:08:53,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:08:53,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (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 [2020-11-11 18:08:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:08:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:08:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:08:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:08:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:08:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:08:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:08:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:08:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 18:08:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 18:08:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-11 18:08:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-11 18:08:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:08:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:08:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:08:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:08:53,980 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:08:54,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:08:54,460 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:08:54,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:08:54 BoogieIcfgContainer [2020-11-11 18:08:54,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:08:54,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:08:54,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:08:54,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:08:54,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:08:53" (1/3) ... [2020-11-11 18:08:54,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef4bc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:08:54, skipping insertion in model container [2020-11-11 18:08:54,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:08:53" (2/3) ... [2020-11-11 18:08:54,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef4bc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:08:54, skipping insertion in model container [2020-11-11 18:08:54,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:08:54" (3/3) ... [2020-11-11 18:08:54,472 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-11-11 18:08:54,489 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:08:54,489 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:08:54,493 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:08:54,494 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:08:54,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,535 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,535 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,536 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,539 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,541 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,541 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,544 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,545 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,545 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,545 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,546 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,546 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,546 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,546 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,550 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,557 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,557 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,558 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,558 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,561 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,562 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,562 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,565 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:08:54,569 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:08:54,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-11 18:08:54,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:08:54,609 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:08:54,610 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:08:54,610 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:08:54,610 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:08:54,610 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:08:54,610 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:08:54,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:08:54,624 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2020-11-11 18:09:05,012 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2020-11-11 18:09:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2020-11-11 18:09:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-11 18:09:05,464 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:05,466 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:05,467 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:05,476 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2020-11-11 18:09:05,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:05,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498039178] [2020-11-11 18:09:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:06,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498039178] [2020-11-11 18:09:06,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:06,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:09:06,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61049932] [2020-11-11 18:09:06,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:09:06,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:06,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:09:06,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:09:06,204 INFO L87 Difference]: Start difference. First operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-11 18:09:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:08,298 INFO L93 Difference]: Finished difference Result 73967 states and 317811 transitions. [2020-11-11 18:09:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:08,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-11-11 18:09:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:08,655 INFO L225 Difference]: With dead ends: 73967 [2020-11-11 18:09:08,656 INFO L226 Difference]: Without dead ends: 25835 [2020-11-11 18:09:08,657 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25835 states. [2020-11-11 18:09:10,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25835 to 25835. [2020-11-11 18:09:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25835 states, 25834 states have (on average 4.234535882944956) internal successors, (109395), 25834 states have internal predecessors, (109395), 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) [2020-11-11 18:09:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25835 states to 25835 states and 109395 transitions. [2020-11-11 18:09:10,938 INFO L78 Accepts]: Start accepts. Automaton has 25835 states and 109395 transitions. Word has length 45 [2020-11-11 18:09:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:10,940 INFO L481 AbstractCegarLoop]: Abstraction has 25835 states and 109395 transitions. [2020-11-11 18:09:10,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-11 18:09:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 25835 states and 109395 transitions. [2020-11-11 18:09:10,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-11 18:09:10,995 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:10,995 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:10,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:09:10,996 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:10,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:10,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1139015446, now seen corresponding path program 1 times [2020-11-11 18:09:10,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:10,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120326504] [2020-11-11 18:09:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:11,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120326504] [2020-11-11 18:09:11,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:11,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:09:11,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867860002] [2020-11-11 18:09:11,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:09:11,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:11,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:09:11,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:09:11,310 INFO L87 Difference]: Start difference. First operand 25835 states and 109395 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-11-11 18:09:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:12,451 INFO L93 Difference]: Finished difference Result 28427 states and 119043 transitions. [2020-11-11 18:09:12,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:12,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2020-11-11 18:09:12,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:12,605 INFO L225 Difference]: With dead ends: 28427 [2020-11-11 18:09:12,605 INFO L226 Difference]: Without dead ends: 22379 [2020-11-11 18:09:12,606 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:12,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22379 states. [2020-11-11 18:09:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22379 to 22379. [2020-11-11 18:09:13,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22379 states, 22378 states have (on average 4.197828224148718) internal successors, (93939), 22378 states have internal predecessors, (93939), 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) [2020-11-11 18:09:13,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22379 states to 22379 states and 93939 transitions. [2020-11-11 18:09:13,794 INFO L78 Accepts]: Start accepts. Automaton has 22379 states and 93939 transitions. Word has length 47 [2020-11-11 18:09:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:13,795 INFO L481 AbstractCegarLoop]: Abstraction has 22379 states and 93939 transitions. [2020-11-11 18:09:13,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2020-11-11 18:09:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 22379 states and 93939 transitions. [2020-11-11 18:09:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-11 18:09:14,292 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:14,293 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:14,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:09:14,293 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:14,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1367050025, now seen corresponding path program 1 times [2020-11-11 18:09:14,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:14,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547039373] [2020-11-11 18:09:14,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:14,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547039373] [2020-11-11 18:09:14,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:14,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:09:14,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882970124] [2020-11-11 18:09:14,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:09:14,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:14,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:09:14,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:09:14,584 INFO L87 Difference]: Start difference. First operand 22379 states and 93939 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:15,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:15,124 INFO L93 Difference]: Finished difference Result 26123 states and 108715 transitions. [2020-11-11 18:09:15,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:15,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2020-11-11 18:09:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:15,277 INFO L225 Difference]: With dead ends: 26123 [2020-11-11 18:09:15,278 INFO L226 Difference]: Without dead ends: 21803 [2020-11-11 18:09:15,278 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:15,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2020-11-11 18:09:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 21803. [2020-11-11 18:09:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21803 states, 21802 states have (on average 4.186175580221998) internal successors, (91267), 21802 states have internal predecessors, (91267), 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) [2020-11-11 18:09:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21803 states to 21803 states and 91267 transitions. [2020-11-11 18:09:16,509 INFO L78 Accepts]: Start accepts. Automaton has 21803 states and 91267 transitions. Word has length 49 [2020-11-11 18:09:16,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:16,512 INFO L481 AbstractCegarLoop]: Abstraction has 21803 states and 91267 transitions. [2020-11-11 18:09:16,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states and 91267 transitions. [2020-11-11 18:09:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-11 18:09:16,574 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:16,574 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:16,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:09:16,574 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:16,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:16,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1400237191, now seen corresponding path program 1 times [2020-11-11 18:09:16,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:16,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784779893] [2020-11-11 18:09:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:16,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784779893] [2020-11-11 18:09:16,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:16,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:09:16,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470889985] [2020-11-11 18:09:16,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:09:16,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:16,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:09:16,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:09:16,814 INFO L87 Difference]: Start difference. First operand 21803 states and 91267 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2020-11-11 18:09:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:17,177 INFO L93 Difference]: Finished difference Result 23147 states and 96115 transitions. [2020-11-11 18:09:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2020-11-11 18:09:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:17,287 INFO L225 Difference]: With dead ends: 23147 [2020-11-11 18:09:17,288 INFO L226 Difference]: Without dead ends: 20011 [2020-11-11 18:09:17,288 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20011 states. [2020-11-11 18:09:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20011 to 20011. [2020-11-11 18:09:18,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20011 states, 20010 states have (on average 4.170864567716142) internal successors, (83459), 20010 states have internal predecessors, (83459), 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) [2020-11-11 18:09:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20011 states to 20011 states and 83459 transitions. [2020-11-11 18:09:18,381 INFO L78 Accepts]: Start accepts. Automaton has 20011 states and 83459 transitions. Word has length 50 [2020-11-11 18:09:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:18,386 INFO L481 AbstractCegarLoop]: Abstraction has 20011 states and 83459 transitions. [2020-11-11 18:09:18,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2020-11-11 18:09:18,390 INFO L276 IsEmpty]: Start isEmpty. Operand 20011 states and 83459 transitions. [2020-11-11 18:09:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-11 18:09:18,446 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:18,446 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:18,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:09:18,452 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:18,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:18,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1483394242, now seen corresponding path program 1 times [2020-11-11 18:09:18,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:18,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989626200] [2020-11-11 18:09:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:18,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989626200] [2020-11-11 18:09:18,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:18,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:09:18,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457881690] [2020-11-11 18:09:18,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:09:18,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:18,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:09:18,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:09:18,630 INFO L87 Difference]: Start difference. First operand 20011 states and 83459 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:19,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:19,554 INFO L93 Difference]: Finished difference Result 30987 states and 127139 transitions. [2020-11-11 18:09:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:19,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-11 18:09:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:19,707 INFO L225 Difference]: With dead ends: 30987 [2020-11-11 18:09:19,707 INFO L226 Difference]: Without dead ends: 21803 [2020-11-11 18:09:19,708 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:19,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2020-11-11 18:09:20,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 18219. [2020-11-11 18:09:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18219 states, 18218 states have (on average 4.087989900098804) internal successors, (74475), 18218 states have internal predecessors, (74475), 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) [2020-11-11 18:09:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18219 states to 18219 states and 74475 transitions. [2020-11-11 18:09:20,865 INFO L78 Accepts]: Start accepts. Automaton has 18219 states and 74475 transitions. Word has length 51 [2020-11-11 18:09:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:20,865 INFO L481 AbstractCegarLoop]: Abstraction has 18219 states and 74475 transitions. [2020-11-11 18:09:20,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 18219 states and 74475 transitions. [2020-11-11 18:09:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-11 18:09:20,914 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:20,915 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:20,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:09:20,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:20,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:20,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1931015558, now seen corresponding path program 1 times [2020-11-11 18:09:20,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:20,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426799148] [2020-11-11 18:09:20,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:21,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426799148] [2020-11-11 18:09:21,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:21,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:09:21,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415421754] [2020-11-11 18:09:21,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:09:21,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:21,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:09:21,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:09:21,110 INFO L87 Difference]: Start difference. First operand 18219 states and 74475 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-11-11 18:09:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:21,456 INFO L93 Difference]: Finished difference Result 28499 states and 115789 transitions. [2020-11-11 18:09:21,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:09:21,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2020-11-11 18:09:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:21,526 INFO L225 Difference]: With dead ends: 28499 [2020-11-11 18:09:21,526 INFO L226 Difference]: Without dead ends: 16459 [2020-11-11 18:09:21,527 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:21,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16459 states. [2020-11-11 18:09:22,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16459 to 16459. [2020-11-11 18:09:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16459 states, 16458 states have (on average 4.059120184712602) internal successors, (66805), 16458 states have internal predecessors, (66805), 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) [2020-11-11 18:09:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16459 states to 16459 states and 66805 transitions. [2020-11-11 18:09:22,214 INFO L78 Accepts]: Start accepts. Automaton has 16459 states and 66805 transitions. Word has length 52 [2020-11-11 18:09:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:22,215 INFO L481 AbstractCegarLoop]: Abstraction has 16459 states and 66805 transitions. [2020-11-11 18:09:22,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-11-11 18:09:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 16459 states and 66805 transitions. [2020-11-11 18:09:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-11 18:09:22,253 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:22,253 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:22,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 18:09:22,254 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:22,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:22,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1173913022, now seen corresponding path program 2 times [2020-11-11 18:09:22,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:22,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785384823] [2020-11-11 18:09:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:22,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785384823] [2020-11-11 18:09:22,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:22,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:09:22,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88557387] [2020-11-11 18:09:22,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:09:22,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:09:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:09:22,760 INFO L87 Difference]: Start difference. First operand 16459 states and 66805 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-11-11 18:09:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:23,058 INFO L93 Difference]: Finished difference Result 25003 states and 100369 transitions. [2020-11-11 18:09:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:09:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2020-11-11 18:09:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:23,111 INFO L225 Difference]: With dead ends: 25003 [2020-11-11 18:09:23,112 INFO L226 Difference]: Without dead ends: 13643 [2020-11-11 18:09:23,112 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13643 states. [2020-11-11 18:09:23,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13643 to 13643. [2020-11-11 18:09:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13643 states, 13642 states have (on average 4.003445242633045) internal successors, (54615), 13642 states have internal predecessors, (54615), 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) [2020-11-11 18:09:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13643 states to 13643 states and 54615 transitions. [2020-11-11 18:09:23,512 INFO L78 Accepts]: Start accepts. Automaton has 13643 states and 54615 transitions. Word has length 52 [2020-11-11 18:09:23,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:23,513 INFO L481 AbstractCegarLoop]: Abstraction has 13643 states and 54615 transitions. [2020-11-11 18:09:23,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-11-11 18:09:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 13643 states and 54615 transitions. [2020-11-11 18:09:23,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-11 18:09:23,538 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:23,538 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:23,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 18:09:23,538 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:23,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:23,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1029243980, now seen corresponding path program 3 times [2020-11-11 18:09:23,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:23,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075922648] [2020-11-11 18:09:23,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:23,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:23,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075922648] [2020-11-11 18:09:23,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:23,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:09:23,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119892006] [2020-11-11 18:09:23,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:09:23,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:23,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:09:23,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:09:23,707 INFO L87 Difference]: Start difference. First operand 13643 states and 54615 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-11-11 18:09:24,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:24,148 INFO L93 Difference]: Finished difference Result 21643 states and 84551 transitions. [2020-11-11 18:09:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-11 18:09:24,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2020-11-11 18:09:24,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:24,457 INFO L225 Difference]: With dead ends: 21643 [2020-11-11 18:09:24,458 INFO L226 Difference]: Without dead ends: 11755 [2020-11-11 18:09:24,458 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-11-11 18:09:24,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2020-11-11 18:09:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 9195. [2020-11-11 18:09:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9195 states, 9194 states have (on average 3.862410267565804) internal successors, (35511), 9194 states have internal predecessors, (35511), 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) [2020-11-11 18:09:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9195 states to 9195 states and 35511 transitions. [2020-11-11 18:09:24,763 INFO L78 Accepts]: Start accepts. Automaton has 9195 states and 35511 transitions. Word has length 52 [2020-11-11 18:09:24,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:24,763 INFO L481 AbstractCegarLoop]: Abstraction has 9195 states and 35511 transitions. [2020-11-11 18:09:24,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2020-11-11 18:09:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 9195 states and 35511 transitions. [2020-11-11 18:09:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-11 18:09:24,776 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:24,776 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:24,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 18:09:24,776 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:24,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:24,777 INFO L82 PathProgramCache]: Analyzing trace with hash -613264223, now seen corresponding path program 1 times [2020-11-11 18:09:24,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:24,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607153154] [2020-11-11 18:09:24,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:24,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607153154] [2020-11-11 18:09:24,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:24,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:09:24,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631181629] [2020-11-11 18:09:24,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:09:24,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:24,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:09:24,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:09:24,924 INFO L87 Difference]: Start difference. First operand 9195 states and 35511 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:25,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:25,146 INFO L93 Difference]: Finished difference Result 12038 states and 45928 transitions. [2020-11-11 18:09:25,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:25,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-11 18:09:25,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:25,168 INFO L225 Difference]: With dead ends: 12038 [2020-11-11 18:09:25,168 INFO L226 Difference]: Without dead ends: 8838 [2020-11-11 18:09:25,168 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:25,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8838 states. [2020-11-11 18:09:25,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8838 to 8838. [2020-11-11 18:09:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8838 states, 8837 states have (on average 3.8391988231300216) internal successors, (33927), 8837 states have internal predecessors, (33927), 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) [2020-11-11 18:09:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8838 states to 8838 states and 33927 transitions. [2020-11-11 18:09:25,405 INFO L78 Accepts]: Start accepts. Automaton has 8838 states and 33927 transitions. Word has length 53 [2020-11-11 18:09:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:25,405 INFO L481 AbstractCegarLoop]: Abstraction has 8838 states and 33927 transitions. [2020-11-11 18:09:25,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8838 states and 33927 transitions. [2020-11-11 18:09:25,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-11 18:09:25,420 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:25,420 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:25,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-11 18:09:25,420 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:25,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1217531091, now seen corresponding path program 1 times [2020-11-11 18:09:25,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:25,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692390003] [2020-11-11 18:09:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:25,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692390003] [2020-11-11 18:09:25,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:25,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:09:25,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787159043] [2020-11-11 18:09:25,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:09:25,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:25,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:09:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:09:25,538 INFO L87 Difference]: Start difference. First operand 8838 states and 33927 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:25,777 INFO L93 Difference]: Finished difference Result 10218 states and 38363 transitions. [2020-11-11 18:09:25,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:09:25,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2020-11-11 18:09:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:25,802 INFO L225 Difference]: With dead ends: 10218 [2020-11-11 18:09:25,802 INFO L226 Difference]: Without dead ends: 7278 [2020-11-11 18:09:25,803 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:09:25,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2020-11-11 18:09:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 7278. [2020-11-11 18:09:26,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7278 states, 7277 states have (on average 3.746324034629655) internal successors, (27262), 7277 states have internal predecessors, (27262), 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) [2020-11-11 18:09:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 27262 transitions. [2020-11-11 18:09:26,142 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 27262 transitions. Word has length 54 [2020-11-11 18:09:26,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:26,143 INFO L481 AbstractCegarLoop]: Abstraction has 7278 states and 27262 transitions. [2020-11-11 18:09:26,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 27262 transitions. [2020-11-11 18:09:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-11 18:09:26,152 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:26,152 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:26,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-11 18:09:26,152 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:26,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:26,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1586012644, now seen corresponding path program 1 times [2020-11-11 18:09:26,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:26,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659735688] [2020-11-11 18:09:26,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:26,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659735688] [2020-11-11 18:09:26,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:26,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-11 18:09:26,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718617300] [2020-11-11 18:09:26,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-11 18:09:26,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:26,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-11 18:09:26,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-11 18:09:26,273 INFO L87 Difference]: Start difference. First operand 7278 states and 27262 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:26,521 INFO L93 Difference]: Finished difference Result 6297 states and 22804 transitions. [2020-11-11 18:09:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-11 18:09:26,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2020-11-11 18:09:26,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:26,532 INFO L225 Difference]: With dead ends: 6297 [2020-11-11 18:09:26,532 INFO L226 Difference]: Without dead ends: 4029 [2020-11-11 18:09:26,533 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:09:26,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2020-11-11 18:09:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 4029. [2020-11-11 18:09:26,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 4028 states have (on average 3.5595829195630584) internal successors, (14338), 4028 states have internal predecessors, (14338), 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) [2020-11-11 18:09:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 14338 transitions. [2020-11-11 18:09:26,636 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 14338 transitions. Word has length 55 [2020-11-11 18:09:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:26,636 INFO L481 AbstractCegarLoop]: Abstraction has 4029 states and 14338 transitions. [2020-11-11 18:09:26,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 14338 transitions. [2020-11-11 18:09:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-11 18:09:26,644 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:26,644 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:26,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-11 18:09:26,644 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -289712769, now seen corresponding path program 1 times [2020-11-11 18:09:26,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:26,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661432989] [2020-11-11 18:09:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:26,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661432989] [2020-11-11 18:09:26,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:26,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:09:26,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649445955] [2020-11-11 18:09:26,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:09:26,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:26,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:09:26,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:09:26,751 INFO L87 Difference]: Start difference. First operand 4029 states and 14338 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:26,890 INFO L93 Difference]: Finished difference Result 5480 states and 19334 transitions. [2020-11-11 18:09:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-11 18:09:26,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-11 18:09:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:26,901 INFO L225 Difference]: With dead ends: 5480 [2020-11-11 18:09:26,902 INFO L226 Difference]: Without dead ends: 4549 [2020-11-11 18:09:26,902 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:09:26,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2020-11-11 18:09:26,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 3901. [2020-11-11 18:09:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 3900 states have (on average 3.5533333333333332) internal successors, (13858), 3900 states have internal predecessors, (13858), 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) [2020-11-11 18:09:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 13858 transitions. [2020-11-11 18:09:26,977 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 13858 transitions. Word has length 57 [2020-11-11 18:09:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:26,977 INFO L481 AbstractCegarLoop]: Abstraction has 3901 states and 13858 transitions. [2020-11-11 18:09:26,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 13858 transitions. [2020-11-11 18:09:26,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-11 18:09:26,983 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:09:26,983 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 18:09:26,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-11 18:09:26,983 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:09:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:09:26,984 INFO L82 PathProgramCache]: Analyzing trace with hash -237436163, now seen corresponding path program 2 times [2020-11-11 18:09:26,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:09:26,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456082633] [2020-11-11 18:09:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:09:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:09:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:09:27,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456082633] [2020-11-11 18:09:27,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:09:27,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-11 18:09:27,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934883989] [2020-11-11 18:09:27,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-11 18:09:27,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:09:27,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-11 18:09:27,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-11 18:09:27,122 INFO L87 Difference]: Start difference. First operand 3901 states and 13858 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:09:27,291 INFO L93 Difference]: Finished difference Result 2227 states and 7567 transitions. [2020-11-11 18:09:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:09:27,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2020-11-11 18:09:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:09:27,292 INFO L225 Difference]: With dead ends: 2227 [2020-11-11 18:09:27,292 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:09:27,292 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-11 18:09:27,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:09:27,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:09:27,293 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) [2020-11-11 18:09:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:09:27,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2020-11-11 18:09:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:09:27,294 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:09:27,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:09:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:09:27,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:09:27,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-11 18:09:27,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:09:27 BasicIcfg [2020-11-11 18:09:27,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:09:27,302 INFO L168 Benchmark]: Toolchain (without parser) took 34257.26 ms. Allocated memory was 302.0 MB in the beginning and 10.4 GB in the end (delta: 10.1 GB). Free memory was 277.5 MB in the beginning and 8.7 GB in the end (delta: -8.4 GB). Peak memory consumption was 1.7 GB. Max. memory is 16.0 GB. [2020-11-11 18:09:27,302 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:09:27,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.43 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 282.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:09:27,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.59 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 280.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:09:27,304 INFO L168 Benchmark]: Boogie Preprocessor took 67.97 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 279.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:09:27,305 INFO L168 Benchmark]: RCFGBuilder took 569.52 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 255.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-11 18:09:27,306 INFO L168 Benchmark]: TraceAbstraction took 32834.83 ms. Allocated memory was 302.0 MB in the beginning and 10.4 GB in the end (delta: 10.1 GB). Free memory was 254.3 MB in the beginning and 8.7 GB in the end (delta: -8.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2020-11-11 18:09:27,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 674.43 ms. Allocated memory is still 302.0 MB. Free memory was 276.9 MB in the beginning and 282.5 MB in the end (delta: -5.6 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 95.59 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 280.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 67.97 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 279.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 569.52 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 255.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 32834.83 ms. Allocated memory was 302.0 MB in the beginning and 10.4 GB in the end (delta: 10.1 GB). Free memory was 254.3 MB in the beginning and 8.7 GB in the end (delta: -8.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.6s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.4s, HoareTripleCheckerStatistics: 1539 SDtfs, 2243 SDslu, 4993 SDs, 0 SdLazy, 507 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54311occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 6792 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 661 ConstructedInterpolants, 0 QuantifiedInterpolants, 88139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...