/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:48:53,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:48:53,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:48:53,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:48:53,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:48:53,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:48:53,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:48:53,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:48:53,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:48:53,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:48:53,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:48:53,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:48:53,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:48:53,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:48:53,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:48:53,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:48:53,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:48:53,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:48:53,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:48:53,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:48:53,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:48:53,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:48:53,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:48:53,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:48:53,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:48:53,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:48:53,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:48:53,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:48:53,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:48:53,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:48:53,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:48:53,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:48:53,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:48:53,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:48:53,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:48:53,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:48:53,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:48:53,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:48:53,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:48:53,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:48:53,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:48:53,809 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:48:53,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:48:53,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:48:53,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:48:53,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:48:53,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:48:53,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:48:53,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:48:53,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:48:53,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:48:53,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:48:53,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:48:53,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:48:53,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:48:53,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:48:53,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:48:53,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:48:53,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:48:53,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:48:53,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:48:53,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:48:53,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:48:53,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:48:53,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:48:53,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:48:53,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:48:54,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:48:54,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:48:54,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:48:54,159 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:48:54,159 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:48:54,160 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-05 22:48:54,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d328afb81/6236244f300e4925ba9dffd8f94a7cc2/FLAGda90932e2 [2020-10-05 22:48:54,782 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:48:54,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-05 22:48:54,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d328afb81/6236244f300e4925ba9dffd8f94a7cc2/FLAGda90932e2 [2020-10-05 22:48:55,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d328afb81/6236244f300e4925ba9dffd8f94a7cc2 [2020-10-05 22:48:55,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:48:55,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:48:55,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:48:55,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:48:55,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:48:55,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d698705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55, skipping insertion in model container [2020-10-05 22:48:55,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:48:55,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:48:55,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:48:55,699 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:48:55,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:48:55,842 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:48:55,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55 WrapperNode [2020-10-05 22:48:55,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:48:55,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:48:55,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:48:55,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:48:55,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:48:55,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:48:55,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:48:55,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:48:55,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (1/1) ... [2020-10-05 22:48:55,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:48:55,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:48:55,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:48:55,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:48:55,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (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 [2020-10-05 22:48:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:48:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 22:48:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:48:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:48:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 22:48:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 22:48:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 22:48:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 22:48:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-05 22:48:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-05 22:48:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 22:48:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:48:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:48:55,989 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:48:56,358 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:48:56,359 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:48:56,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:48:56 BoogieIcfgContainer [2020-10-05 22:48:56,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:48:56,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:48:56,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:48:56,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:48:56,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:48:55" (1/3) ... [2020-10-05 22:48:56,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595afb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:48:56, skipping insertion in model container [2020-10-05 22:48:56,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:48:55" (2/3) ... [2020-10-05 22:48:56,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595afb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:48:56, skipping insertion in model container [2020-10-05 22:48:56,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:48:56" (3/3) ... [2020-10-05 22:48:56,371 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2020-10-05 22:48:56,382 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:48:56,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:48:56,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-05 22:48:56,390 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:48:56,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,419 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,419 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,420 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,420 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,422 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,422 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,424 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,424 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,425 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,425 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,429 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,429 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,430 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,430 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,441 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,442 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,442 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,443 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,445 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,445 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,446 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:48:56,463 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 22:48:56,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:48:56,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:48:56,481 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:48:56,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:48:56,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:48:56,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:48:56,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:48:56,482 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:48:56,498 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-05 22:48:56,501 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-05 22:48:56,547 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-05 22:48:56,547 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:48:56,552 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-05 22:48:56,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-05 22:48:56,576 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-05 22:48:56,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 22:48:56,577 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-05 22:48:56,579 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1186 [2020-10-05 22:48:56,580 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:48:58,049 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1951 [2020-10-05 22:48:58,049 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-10-05 22:48:58,053 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-05 22:48:58,074 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-05 22:48:58,076 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-05 22:48:58,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 22:48:58,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:58,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:58,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:58,091 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-05 22:48:58,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:58,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240074427] [2020-10-05 22:48:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:58,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:58,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240074427] [2020-10-05 22:48:58,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:58,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:48:58,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812349096] [2020-10-05 22:48:58,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:48:58,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:58,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:48:58,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:48:58,342 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-05 22:48:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:58,387 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-05 22:48:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:48:58,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-05 22:48:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:58,404 INFO L225 Difference]: With dead ends: 222 [2020-10-05 22:48:58,404 INFO L226 Difference]: Without dead ends: 174 [2020-10-05 22:48:58,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:48:58,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-05 22:48:58,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-05 22:48:58,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-05 22:48:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-05 22:48:58,464 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-05 22:48:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:58,465 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-05 22:48:58,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:48:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-05 22:48:58,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 22:48:58,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:58,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:58,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:48:58,468 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:58,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:58,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-05 22:48:58,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:58,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343185648] [2020-10-05 22:48:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:58,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343185648] [2020-10-05 22:48:58,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:58,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:48:58,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500371696] [2020-10-05 22:48:58,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:48:58,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:58,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:48:58,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:48:58,608 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-05 22:48:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:58,641 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-05 22:48:58,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:48:58,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 22:48:58,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:58,643 INFO L225 Difference]: With dead ends: 204 [2020-10-05 22:48:58,643 INFO L226 Difference]: Without dead ends: 108 [2020-10-05 22:48:58,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:48:58,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-05 22:48:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-05 22:48:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-05 22:48:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-05 22:48:58,662 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-05 22:48:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:58,662 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-05 22:48:58,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:48:58,663 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-05 22:48:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 22:48:58,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:58,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:58,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:48:58,667 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:58,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:58,667 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-05 22:48:58,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:58,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429636309] [2020-10-05 22:48:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:58,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429636309] [2020-10-05 22:48:58,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:58,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:48:58,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569499964] [2020-10-05 22:48:58,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:48:58,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:58,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:48:58,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:48:58,740 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-05 22:48:58,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:58,750 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-05 22:48:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:48:58,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-05 22:48:58,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:58,752 INFO L225 Difference]: With dead ends: 106 [2020-10-05 22:48:58,752 INFO L226 Difference]: Without dead ends: 106 [2020-10-05 22:48:58,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:48:58,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-05 22:48:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-05 22:48:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-05 22:48:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-05 22:48:58,770 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-05 22:48:58,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:58,771 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-05 22:48:58,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:48:58,773 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-05 22:48:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:48:58,774 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:58,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:58,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:48:58,775 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:58,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:58,775 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-05 22:48:58,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:58,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770235295] [2020-10-05 22:48:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:58,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:58,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770235295] [2020-10-05 22:48:58,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:58,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:48:58,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848862196] [2020-10-05 22:48:58,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:48:58,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:58,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:48:58,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:48:58,844 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-05 22:48:58,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:58,865 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-05 22:48:58,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:48:58,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:48:58,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:58,867 INFO L225 Difference]: With dead ends: 138 [2020-10-05 22:48:58,867 INFO L226 Difference]: Without dead ends: 60 [2020-10-05 22:48:58,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:48:58,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-05 22:48:58,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-05 22:48:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-05 22:48:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-05 22:48:58,874 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-05 22:48:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:58,874 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-05 22:48:58,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:48:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-05 22:48:58,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:48:58,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:58,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:58,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:48:58,876 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-05 22:48:58,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:58,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179600133] [2020-10-05 22:48:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:58,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179600133] [2020-10-05 22:48:58,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:58,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:48:58,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860621626] [2020-10-05 22:48:58,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:48:58,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:58,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:48:58,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:48:58,976 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-05 22:48:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:59,011 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-05 22:48:59,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:48:59,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-05 22:48:59,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:59,012 INFO L225 Difference]: With dead ends: 73 [2020-10-05 22:48:59,012 INFO L226 Difference]: Without dead ends: 52 [2020-10-05 22:48:59,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:48:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-05 22:48:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-05 22:48:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-05 22:48:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-05 22:48:59,018 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-05 22:48:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:59,018 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-05 22:48:59,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:48:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-05 22:48:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:48:59,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:59,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:59,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:48:59,020 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:59,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:59,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-05 22:48:59,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:59,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740056621] [2020-10-05 22:48:59,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:59,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740056621] [2020-10-05 22:48:59,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:59,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:48:59,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057576495] [2020-10-05 22:48:59,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:48:59,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:59,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:48:59,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:48:59,154 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-05 22:48:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:59,229 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-05 22:48:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 22:48:59,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 22:48:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:59,231 INFO L225 Difference]: With dead ends: 53 [2020-10-05 22:48:59,231 INFO L226 Difference]: Without dead ends: 38 [2020-10-05 22:48:59,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:48:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-05 22:48:59,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-05 22:48:59,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-05 22:48:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-05 22:48:59,243 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-05 22:48:59,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:59,243 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-05 22:48:59,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:48:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-05 22:48:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 22:48:59,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:59,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:59,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:48:59,247 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:59,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:59,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-05 22:48:59,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:59,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047136195] [2020-10-05 22:48:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:59,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047136195] [2020-10-05 22:48:59,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:59,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:48:59,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194080738] [2020-10-05 22:48:59,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:48:59,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:59,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:48:59,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:48:59,338 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-05 22:48:59,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:59,393 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-05 22:48:59,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:48:59,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-05 22:48:59,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:59,394 INFO L225 Difference]: With dead ends: 35 [2020-10-05 22:48:59,394 INFO L226 Difference]: Without dead ends: 29 [2020-10-05 22:48:59,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:48:59,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-05 22:48:59,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-05 22:48:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-05 22:48:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-05 22:48:59,397 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-05 22:48:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:59,398 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-05 22:48:59,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:48:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-05 22:48:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-05 22:48:59,399 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:48:59,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:48:59,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:48:59,399 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:48:59,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:48:59,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-05 22:48:59,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:48:59,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286867259] [2020-10-05 22:48:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:48:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:48:59,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:48:59,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286867259] [2020-10-05 22:48:59,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:48:59,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:48:59,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794853315] [2020-10-05 22:48:59,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:48:59,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:48:59,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:48:59,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:48:59,433 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-05 22:48:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:48:59,439 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-05 22:48:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:48:59,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-05 22:48:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:48:59,440 INFO L225 Difference]: With dead ends: 28 [2020-10-05 22:48:59,440 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:48:59,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:48:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:48:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:48:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:48:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:48:59,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-05 22:48:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:48:59,442 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:48:59,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:48:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:48:59,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:48:59,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:48:59,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:48:59 BasicIcfg [2020-10-05 22:48:59,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:48:59,450 INFO L168 Benchmark]: Toolchain (without parser) took 4373.85 ms. Allocated memory was 147.3 MB in the beginning and 247.5 MB in the end (delta: 100.1 MB). Free memory was 102.7 MB in the beginning and 183.8 MB in the end (delta: -81.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:48:59,451 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:48:59,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.66 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 161.9 MB in the end (delta: -59.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-05 22:48:59,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 203.9 MB. Free memory was 161.9 MB in the beginning and 159.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-05 22:48:59,454 INFO L168 Benchmark]: Boogie Preprocessor took 26.51 ms. Allocated memory is still 203.9 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-05 22:48:59,455 INFO L168 Benchmark]: RCFGBuilder took 438.23 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 136.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-05 22:48:59,455 INFO L168 Benchmark]: TraceAbstraction took 3084.43 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 135.6 MB in the beginning and 183.8 MB in the end (delta: -48.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-05 22:48:59,460 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.66 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 161.9 MB in the end (delta: -59.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 203.9 MB. Free memory was 161.9 MB in the beginning and 159.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.51 ms. Allocated memory is still 203.9 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.23 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 136.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3084.43 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 135.6 MB in the beginning and 183.8 MB in the end (delta: -48.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 634 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1951 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...