/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:22:02,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:22:02,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:22:02,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:22:02,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:22:02,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:22:02,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:22:02,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:22:02,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:22:02,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:22:02,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:22:02,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:22:02,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:22:02,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:22:02,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:22:02,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:22:02,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:22:02,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:22:02,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:22:02,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:22:02,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:22:02,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:22:02,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:22:02,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:22:02,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 02:22:02,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:22:02,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:22:02,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:22:02,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:22:02,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:22:02,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:22:02,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:22:02,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:22:02,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:22:02,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:22:02,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:22:02,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:22:02,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:22:02,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:22:02,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:22:02,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:22:02,800 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:22:02,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:22:02,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:22:02,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:22:02,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:22:02,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:22:02,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:22:02,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:22:02,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:22:02,802 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:22:02,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:22:02,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:22:02,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:22:02,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:22:02,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:22:02,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:22:02,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:22:02,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:22:02,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:22:02,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:22:02,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:22:02,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:22:02,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:22:02,805 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:22:02,805 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:22:02,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:22:02,806 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:22:03,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:22:03,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:22:03,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:22:03,126 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:22:03,126 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:22:03,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-10-22 02:22:03,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ecb3192/55e4f8b2cc2244efa33673d2d918c43c/FLAG58e187f29 [2020-10-22 02:22:03,727 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:22:03,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2020-10-22 02:22:03,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ecb3192/55e4f8b2cc2244efa33673d2d918c43c/FLAG58e187f29 [2020-10-22 02:22:04,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ecb3192/55e4f8b2cc2244efa33673d2d918c43c [2020-10-22 02:22:04,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:22:04,056 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:22:04,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:22:04,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:22:04,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:22:04,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fba72e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04, skipping insertion in model container [2020-10-22 02:22:04,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:22:04,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:22:04,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:22:04,692 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:22:04,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:22:04,819 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:22:04,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04 WrapperNode [2020-10-22 02:22:04,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:22:04,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:22:04,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:22:04,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:22:04,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:22:04,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:22:04,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:22:04,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:22:04,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (1/1) ... [2020-10-22 02:22:04,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:22:04,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:22:04,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:22:04,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:22:04,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (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 [2020-10-22 02:22:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:22:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:22:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:22:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:22:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:22:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:22:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:22:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:22:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:22:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:22:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:22:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:22:04,974 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:22:05,309 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:22:05,309 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:22:05,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:05 BoogieIcfgContainer [2020-10-22 02:22:05,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:22:05,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:22:05,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:22:05,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:22:05,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:22:04" (1/3) ... [2020-10-22 02:22:05,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8a806d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:05, skipping insertion in model container [2020-10-22 02:22:05,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:22:04" (2/3) ... [2020-10-22 02:22:05,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8a806d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:22:05, skipping insertion in model container [2020-10-22 02:22:05,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:22:05" (3/3) ... [2020-10-22 02:22:05,322 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2020-10-22 02:22:05,337 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:22:05,337 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:22:05,346 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:22:05,347 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:22:05,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,379 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,381 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,382 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,394 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:22:05,397 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:22:05,413 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 02:22:05,435 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:22:05,436 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:22:05,436 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:22:05,436 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:22:05,436 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:22:05,436 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:22:05,437 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:22:05,437 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:22:05,451 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:22:05,452 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-10-22 02:22:05,456 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-10-22 02:22:05,458 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-10-22 02:22:05,508 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-10-22 02:22:05,508 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:22:05,513 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 02:22:05,515 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 02:22:07,162 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-10-22 02:22:07,386 INFO L131 LiptonReduction]: Checked pairs total: 1620 [2020-10-22 02:22:07,386 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-10-22 02:22:07,392 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-22 02:22:07,404 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-22 02:22:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-22 02:22:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 02:22:07,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:07,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 02:22:07,413 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:07,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1340707883, now seen corresponding path program 1 times [2020-10-22 02:22:07,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:07,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105414847] [2020-10-22 02:22:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:07,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105414847] [2020-10-22 02:22:07,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:07,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:22:07,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1180344067] [2020-10-22 02:22:07,670 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:07,673 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:07,685 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 02:22:07,685 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:07,689 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:07,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:22:07,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:07,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:22:07,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:22:07,703 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-22 02:22:07,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:07,749 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-22 02:22:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:22:07,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-22 02:22:07,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:07,768 INFO L225 Difference]: With dead ends: 72 [2020-10-22 02:22:07,768 INFO L226 Difference]: Without dead ends: 56 [2020-10-22 02:22:07,770 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 [2020-10-22 02:22:07,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-22 02:22:07,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-22 02:22:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-22 02:22:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-22 02:22:07,828 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-22 02:22:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:07,828 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-22 02:22:07,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:22:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-22 02:22:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 02:22:07,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:07,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:07,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:22:07,831 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:07,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:07,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1368723103, now seen corresponding path program 1 times [2020-10-22 02:22:07,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:07,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092335711] [2020-10-22 02:22:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:07,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:07,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092335711] [2020-10-22 02:22:07,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:07,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:22:07,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [933725935] [2020-10-22 02:22:07,979 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:07,980 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:07,983 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-10-22 02:22:07,983 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:08,033 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:08,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:22:08,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:08,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:22:08,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:22:08,036 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-10-22 02:22:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:08,066 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-10-22 02:22:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:22:08,067 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-22 02:22:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:08,068 INFO L225 Difference]: With dead ends: 56 [2020-10-22 02:22:08,068 INFO L226 Difference]: Without dead ends: 40 [2020-10-22 02:22:08,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-22 02:22:08,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-22 02:22:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-22 02:22:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-22 02:22:08,076 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-10-22 02:22:08,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:08,076 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-22 02:22:08,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:22:08,076 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-22 02:22:08,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:22:08,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:08,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:08,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:22:08,078 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:08,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:08,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1081707285, now seen corresponding path program 1 times [2020-10-22 02:22:08,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:08,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702922280] [2020-10-22 02:22:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:08,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702922280] [2020-10-22 02:22:08,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:08,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:22:08,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [300905603] [2020-10-22 02:22:08,140 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:08,140 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:08,142 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-10-22 02:22:08,143 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:08,263 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:08,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:22:08,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:08,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:22:08,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:08,265 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-22 02:22:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:08,300 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-22 02:22:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:22:08,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-22 02:22:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:08,302 INFO L225 Difference]: With dead ends: 35 [2020-10-22 02:22:08,302 INFO L226 Difference]: Without dead ends: 28 [2020-10-22 02:22:08,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:22:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-22 02:22:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-22 02:22:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-22 02:22:08,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-22 02:22:08,307 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-22 02:22:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:08,307 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-22 02:22:08,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:22:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-22 02:22:08,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:22:08,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:08,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:08,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:22:08,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:08,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:08,309 INFO L82 PathProgramCache]: Analyzing trace with hash 370642726, now seen corresponding path program 1 times [2020-10-22 02:22:08,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:08,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509852589] [2020-10-22 02:22:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:08,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509852589] [2020-10-22 02:22:08,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:08,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:22:08,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2017200093] [2020-10-22 02:22:08,354 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:08,355 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:08,357 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-22 02:22:08,358 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:08,379 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:08,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:22:08,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:08,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:22:08,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:22:08,382 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-10-22 02:22:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:08,411 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-22 02:22:08,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:22:08,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 02:22:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:08,413 INFO L225 Difference]: With dead ends: 35 [2020-10-22 02:22:08,413 INFO L226 Difference]: Without dead ends: 16 [2020-10-22 02:22:08,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:22:08,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-22 02:22:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-22 02:22:08,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-22 02:22:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-22 02:22:08,416 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-10-22 02:22:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:08,417 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-22 02:22:08,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:22:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-22 02:22:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:22:08,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:22:08,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:22:08,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:22:08,418 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:22:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:22:08,418 INFO L82 PathProgramCache]: Analyzing trace with hash 658714138, now seen corresponding path program 2 times [2020-10-22 02:22:08,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:22:08,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595328756] [2020-10-22 02:22:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:22:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:22:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:22:08,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595328756] [2020-10-22 02:22:08,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:22:08,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:22:08,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1126726653] [2020-10-22 02:22:08,461 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:22:08,462 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:22:08,464 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-22 02:22:08,464 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:22:08,479 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:22:08,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:22:08,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:22:08,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:22:08,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:22:08,481 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-10-22 02:22:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:22:08,499 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-22 02:22:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:22:08,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 02:22:08,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:22:08,500 INFO L225 Difference]: With dead ends: 15 [2020-10-22 02:22:08,500 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:22:08,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:22:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:22:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:22:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:22:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:22:08,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-22 02:22:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:22:08,502 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:22:08,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:22:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:22:08,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:22:08,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:22:08,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:22:08 BasicIcfg [2020-10-22 02:22:08,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:22:08,508 INFO L168 Benchmark]: Toolchain (without parser) took 4458.37 ms. Allocated memory was 146.8 MB in the beginning and 245.4 MB in the end (delta: 98.6 MB). Free memory was 101.3 MB in the beginning and 179.1 MB in the end (delta: -77.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:08,510 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:22:08,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.20 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.2 MB in the beginning and 157.8 MB in the end (delta: -57.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:08,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:08,512 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 203.4 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:08,513 INFO L168 Benchmark]: RCFGBuilder took 413.29 ms. Allocated memory is still 203.4 MB. Free memory was 154.4 MB in the beginning and 132.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:22:08,514 INFO L168 Benchmark]: TraceAbstraction took 3191.98 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 132.1 MB in the beginning and 179.1 MB in the end (delta: -47.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:22:08,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.20 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 100.2 MB in the beginning and 157.8 MB in the end (delta: -57.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.31 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 203.4 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.29 ms. Allocated memory is still 203.4 MB. Free memory was 154.4 MB in the beginning and 132.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3191.98 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 132.1 MB in the beginning and 179.1 MB in the end (delta: -47.0 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 439 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 17 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1620 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 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 56 SDtfs, 43 SDslu, 46 SDs, 0 SdLazy, 31 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 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...