/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/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:05:35,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:05:35,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:05:35,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:05:35,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:05:35,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:05:35,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:05:35,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:05:35,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:05:35,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:05:35,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:05:35,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:05:35,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:05:35,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:05:35,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:05:35,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:05:35,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:05:35,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:05:35,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:05:35,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:05:35,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:05:35,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:05:35,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:05:35,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:05:35,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:05:35,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:05:35,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:05:35,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:05:35,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:05:35,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:05:35,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:05:35,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:05:35,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:05:35,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:05:35,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:05:35,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:05:35,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:05:35,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:05:35,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:05:35,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:05:35,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:05:35,795 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 [2020-10-21 22:05:35,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:05:35,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:05:35,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:05:35,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:05:35,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:05:35,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:05:35,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:05:35,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:05:35,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:05:35,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:05:35,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:05:35,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:05:35,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:05:35,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:05:35,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:05:35,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:05:35,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:05:35,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:05:35,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:05:35,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:05:35,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:05:35,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:05:35,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:05:35,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:05:35,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:05:35,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:05:35,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:05:35,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:05:35,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:05:35,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:05:36,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:05:36,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:05:36,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:05:36,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:05:36,200 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:05:36,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-10-21 22:05:36,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/751da6bd0/fce15d65c9c5491094a0fe7e1ef65566/FLAGc5a20fdfb [2020-10-21 22:05:36,823 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:05:36,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-10-21 22:05:36,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/751da6bd0/fce15d65c9c5491094a0fe7e1ef65566/FLAGc5a20fdfb [2020-10-21 22:05:37,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/751da6bd0/fce15d65c9c5491094a0fe7e1ef65566 [2020-10-21 22:05:37,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:05:37,193 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:05:37,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:37,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:05:37,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:05:37,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:37" (1/1) ... [2020-10-21 22:05:37,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6a5181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:37, skipping insertion in model container [2020-10-21 22:05:37,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:37" (1/1) ... [2020-10-21 22:05:37,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:05:37,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:05:37,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:37,872 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:05:37,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:38,030 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:05:38,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38 WrapperNode [2020-10-21 22:05:38,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:38,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:38,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:05:38,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:05:38,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:38,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:05:38,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:05:38,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:05:38,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (1/1) ... [2020-10-21 22:05:38,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:05:38,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:05:38,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:05:38,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:05:38,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (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 [2020-10-21 22:05:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:05:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:05:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:05:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:05:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:05:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:05:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:05:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:05:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:05:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:05:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:05:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:05:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:05:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:05:38,194 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:05:38,596 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:05:38,596 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:05:38,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:38 BoogieIcfgContainer [2020-10-21 22:05:38,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:05:38,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:05:38,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:05:38,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:05:38,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:05:37" (1/3) ... [2020-10-21 22:05:38,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40533e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:38, skipping insertion in model container [2020-10-21 22:05:38,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:38" (2/3) ... [2020-10-21 22:05:38,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40533e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:38, skipping insertion in model container [2020-10-21 22:05:38,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:38" (3/3) ... [2020-10-21 22:05:38,608 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2020-10-21 22:05:38,621 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:05:38,621 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:05:38,630 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:05:38,631 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:05:38,662 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,662 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,663 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,667 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,670 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,681 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,681 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,691 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,691 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,692 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,700 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,701 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,701 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:38,703 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:05:38,718 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:05:38,737 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:05:38,737 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:05:38,737 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:05:38,737 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:05:38,737 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:05:38,737 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:05:38,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:05:38,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:05:38,751 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:05:38,754 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-21 22:05:38,760 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-10-21 22:05:38,762 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-10-21 22:05:38,810 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-21 22:05:38,810 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:05:38,818 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 22:05:38,821 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 22:05:40,921 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-21 22:05:41,112 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-10-21 22:05:41,113 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-10-21 22:05:41,121 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-21 22:05:41,174 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-21 22:05:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-21 22:05:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:05:41,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:41,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:41,186 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:41,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:41,193 INFO L82 PathProgramCache]: Analyzing trace with hash -853874994, now seen corresponding path program 1 times [2020-10-21 22:05:41,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:41,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778178152] [2020-10-21 22:05:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:41,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778178152] [2020-10-21 22:05:41,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:41,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:05:41,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762537070] [2020-10-21 22:05:41,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:05:41,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:41,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:05:41,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:05:41,457 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-21 22:05:41,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:41,509 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-21 22:05:41,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:05:41,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:05:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:41,531 INFO L225 Difference]: With dead ends: 282 [2020-10-21 22:05:41,531 INFO L226 Difference]: Without dead ends: 218 [2020-10-21 22:05:41,533 INFO L677 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 [2020-10-21 22:05:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-21 22:05:41,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-21 22:05:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-21 22:05:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-21 22:05:41,618 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-21 22:05:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:41,619 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-21 22:05:41,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:05:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-21 22:05:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:05:41,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:41,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:41,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:05:41,623 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:41,623 INFO L82 PathProgramCache]: Analyzing trace with hash -700352928, now seen corresponding path program 1 times [2020-10-21 22:05:41,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:41,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086393016] [2020-10-21 22:05:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:41,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086393016] [2020-10-21 22:05:41,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:41,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:41,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583712381] [2020-10-21 22:05:41,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:41,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:41,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:41,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:41,743 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-21 22:05:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:41,771 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-10-21 22:05:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:05:41,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 22:05:41,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:41,774 INFO L225 Difference]: With dead ends: 242 [2020-10-21 22:05:41,774 INFO L226 Difference]: Without dead ends: 146 [2020-10-21 22:05:41,775 INFO L677 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 [2020-10-21 22:05:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-21 22:05:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-21 22:05:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-21 22:05:41,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-10-21 22:05:41,791 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-10-21 22:05:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:41,791 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-10-21 22:05:41,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-10-21 22:05:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:05:41,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:41,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:41,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:05:41,793 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:41,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:41,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2063010818, now seen corresponding path program 1 times [2020-10-21 22:05:41,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:41,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730229100] [2020-10-21 22:05:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:41,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730229100] [2020-10-21 22:05:41,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:41,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:05:41,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541039440] [2020-10-21 22:05:41,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:05:41,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:41,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:05:41,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:05:41,867 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-10-21 22:05:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:41,889 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-10-21 22:05:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:05:41,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-21 22:05:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:41,892 INFO L225 Difference]: With dead ends: 140 [2020-10-21 22:05:41,892 INFO L226 Difference]: Without dead ends: 140 [2020-10-21 22:05:41,893 INFO L677 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 [2020-10-21 22:05:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-21 22:05:41,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-21 22:05:41,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-21 22:05:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-10-21 22:05:41,905 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-10-21 22:05:41,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:41,906 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-10-21 22:05:41,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:05:41,906 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-10-21 22:05:41,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:05:41,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:41,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:41,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:05:41,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:41,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:41,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1374781277, now seen corresponding path program 1 times [2020-10-21 22:05:41,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:41,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934614083] [2020-10-21 22:05:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:41,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934614083] [2020-10-21 22:05:41,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:41,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:41,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006771923] [2020-10-21 22:05:41,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:41,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:41,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:41,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:41,956 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-10-21 22:05:41,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:41,977 INFO L93 Difference]: Finished difference Result 158 states and 376 transitions. [2020-10-21 22:05:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:05:41,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 22:05:41,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:41,979 INFO L225 Difference]: With dead ends: 158 [2020-10-21 22:05:41,979 INFO L226 Difference]: Without dead ends: 68 [2020-10-21 22:05:41,980 INFO L677 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 [2020-10-21 22:05:41,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-21 22:05:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-21 22:05:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-21 22:05:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-10-21 22:05:41,987 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-10-21 22:05:41,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:41,987 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-10-21 22:05:41,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:41,988 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-10-21 22:05:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:05:41,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:41,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:41,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:05:41,989 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:41,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1721558133, now seen corresponding path program 1 times [2020-10-21 22:05:41,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:41,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671504977] [2020-10-21 22:05:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:42,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671504977] [2020-10-21 22:05:42,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:42,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:42,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292808142] [2020-10-21 22:05:42,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:42,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:42,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:42,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:42,031 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-10-21 22:05:42,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:42,046 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-10-21 22:05:42,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:05:42,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 22:05:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:42,047 INFO L225 Difference]: With dead ends: 56 [2020-10-21 22:05:42,047 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:05:42,047 INFO L677 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 [2020-10-21 22:05:42,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:05:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:05:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:05:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:05:42,048 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-21 22:05:42,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:42,049 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:05:42,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:05:42,049 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:05:42,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:05:42,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:05:42 BasicIcfg [2020-10-21 22:05:42,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:05:42,056 INFO L168 Benchmark]: Toolchain (without parser) took 4869.14 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 100.8 MB in the beginning and 116.8 MB in the end (delta: -16.1 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,057 INFO L168 Benchmark]: CDTParser took 4.05 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.16 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.9 MB in the beginning and 155.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,059 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 201.9 MB. Free memory was 155.4 MB in the beginning and 153.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,060 INFO L168 Benchmark]: Boogie Preprocessor took 29.73 ms. Allocated memory is still 201.9 MB. Free memory was 153.4 MB in the beginning and 151.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,060 INFO L168 Benchmark]: RCFGBuilder took 486.52 ms. Allocated memory is still 201.9 MB. Free memory was 151.5 MB in the beginning and 127.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,061 INFO L168 Benchmark]: TraceAbstraction took 3453.02 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 127.4 MB in the beginning and 116.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:42,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.05 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 837.16 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 99.9 MB in the beginning and 155.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.26 ms. Allocated memory is still 201.9 MB. Free memory was 155.4 MB in the beginning and 153.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.73 ms. Allocated memory is still 201.9 MB. Free memory was 153.4 MB in the beginning and 151.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 486.52 ms. Allocated memory is still 201.9 MB. Free memory was 151.5 MB in the beginning and 127.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3453.02 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 127.4 MB in the beginning and 116.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1074 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2810 MoverChecksTotal - 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 56 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1434 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...