/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:12:16,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:12:16,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:12:16,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:12:16,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:12:16,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:12:16,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:12:16,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:12:16,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:12:16,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:12:16,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:12:16,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:12:16,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:12:16,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:12:16,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:12:16,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:12:16,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:12:16,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:12:16,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:12:16,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:12:16,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:12:16,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:12:16,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:12:16,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:12:16,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:12:16,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:12:16,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:12:16,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:12:16,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:12:16,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:12:16,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:12:16,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:12:16,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:12:16,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:12:16,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:12:16,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:12:16,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:12:16,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:12:16,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:12:16,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:12:16,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:12:16,698 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:12:16,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:12:16,699 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:12:16,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:12:16,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:12:16,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:12:16,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:12:16,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:12:16,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:12:16,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:12:16,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:12:16,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:12:16,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:12:16,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:12:16,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:12:16,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:12:16,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:12:16,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:12:16,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:12:16,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:12:16,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:12:16,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:12:16,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:12:16,703 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:12:16,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:12:17,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:12:17,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:12:17,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:12:17,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:12:17,060 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:12:17,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-10-16 12:12:17,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca705313e/596e3035090e4e3aa4c8716dc75a9462/FLAG438592e07 [2020-10-16 12:12:17,741 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:12:17,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe036_pso.oepc.i [2020-10-16 12:12:17,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca705313e/596e3035090e4e3aa4c8716dc75a9462/FLAG438592e07 [2020-10-16 12:12:17,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca705313e/596e3035090e4e3aa4c8716dc75a9462 [2020-10-16 12:12:17,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:12:17,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:12:17,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:12:17,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:12:17,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:12:17,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:12:17" (1/1) ... [2020-10-16 12:12:17,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aff18c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:17, skipping insertion in model container [2020-10-16 12:12:17,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:12:17" (1/1) ... [2020-10-16 12:12:17,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:12:18,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:12:18,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:12:18,544 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:12:18,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:12:18,692 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:12:18,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18 WrapperNode [2020-10-16 12:12:18,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:12:18,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:12:18,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:12:18,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:12:18,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:12:18,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:12:18,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:12:18,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:12:18,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... [2020-10-16 12:12:18,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:12:18,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:12:18,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:12:18,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:12:18,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:12:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:12:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:12:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:12:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:12:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:12:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:12:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:12:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:12:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:12:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:12:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:12:18,840 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:12:19,134 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:12:19,134 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:12:19,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:12:19 BoogieIcfgContainer [2020-10-16 12:12:19,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:12:19,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:12:19,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:12:19,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:12:19,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:12:17" (1/3) ... [2020-10-16 12:12:19,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bf865e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:12:19, skipping insertion in model container [2020-10-16 12:12:19,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (2/3) ... [2020-10-16 12:12:19,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bf865e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:12:19, skipping insertion in model container [2020-10-16 12:12:19,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:12:19" (3/3) ... [2020-10-16 12:12:19,149 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.oepc.i [2020-10-16 12:12:19,165 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:12:19,166 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:12:19,174 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:12:19,176 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:12:19,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,211 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,222 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,222 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,246 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,247 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,247 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,247 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:12:19,255 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:12:19,269 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 12:12:19,292 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:12:19,292 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:12:19,293 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:12:19,293 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:12:19,293 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:12:19,293 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:12:19,293 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:12:19,294 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:12:19,307 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:12:19,308 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-16 12:12:19,311 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-16 12:12:19,313 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-16 12:12:19,351 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-16 12:12:19,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:12:19,357 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 12:12:19,359 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 12:12:20,618 INFO L132 LiptonReduction]: Checked pairs total: 1338 [2020-10-16 12:12:20,618 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-16 12:12:20,627 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 12:12:20,642 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 12:12:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 12:12:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:12:20,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:20,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:12:20,654 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:20,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-10-16 12:12:20,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:20,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137598164] [2020-10-16 12:12:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:20,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137598164] [2020-10-16 12:12:20,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:20,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:12:20,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090291205] [2020-10-16 12:12:20,940 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:20,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:20,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:20,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:20,959 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-10-16 12:12:21,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:21,030 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-10-16 12:12:21,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:12:21,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-16 12:12:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:21,047 INFO L225 Difference]: With dead ends: 63 [2020-10-16 12:12:21,048 INFO L226 Difference]: Without dead ends: 40 [2020-10-16 12:12:21,049 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 [2020-10-16 12:12:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-16 12:12:21,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-16 12:12:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-16 12:12:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-16 12:12:21,091 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-10-16 12:12:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:21,092 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-16 12:12:21,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-16 12:12:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:12:21,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:21,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:21,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:12:21,094 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:21,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:21,094 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-10-16 12:12:21,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:21,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518451894] [2020-10-16 12:12:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:21,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518451894] [2020-10-16 12:12:21,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:21,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:21,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353770344] [2020-10-16 12:12:21,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:12:21,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:21,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:12:21,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:12:21,171 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-16 12:12:21,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:21,213 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-16 12:12:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:12:21,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 12:12:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:21,214 INFO L225 Difference]: With dead ends: 35 [2020-10-16 12:12:21,214 INFO L226 Difference]: Without dead ends: 28 [2020-10-16 12:12:21,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:12:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-16 12:12:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-16 12:12:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-16 12:12:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-16 12:12:21,221 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-16 12:12:21,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:21,221 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-16 12:12:21,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:12:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-16 12:12:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:12:21,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:21,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:21,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:12:21,223 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:21,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-10-16 12:12:21,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:21,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643529090] [2020-10-16 12:12:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:21,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643529090] [2020-10-16 12:12:21,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:21,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:21,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494336117] [2020-10-16 12:12:21,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:21,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:21,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:21,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:21,278 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-10-16 12:12:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:21,294 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-16 12:12:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:12:21,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:12:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:21,296 INFO L225 Difference]: With dead ends: 35 [2020-10-16 12:12:21,296 INFO L226 Difference]: Without dead ends: 22 [2020-10-16 12:12:21,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:12:21,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-16 12:12:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-16 12:12:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-16 12:12:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-16 12:12:21,300 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-10-16 12:12:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:21,301 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-16 12:12:21,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-16 12:12:21,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:12:21,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:12:21,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:12:21,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:12:21,302 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:12:21,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:12:21,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-10-16 12:12:21,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:12:21,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565245309] [2020-10-16 12:12:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:12:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:12:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:12:21,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565245309] [2020-10-16 12:12:21,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:12:21,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:12:21,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875175597] [2020-10-16 12:12:21,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:12:21,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:12:21,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:12:21,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:12:21,368 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-10-16 12:12:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:12:21,380 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-16 12:12:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:12:21,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:12:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:12:21,381 INFO L225 Difference]: With dead ends: 21 [2020-10-16 12:12:21,381 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:12:21,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:12:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:12:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:12:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:12:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:12:21,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-16 12:12:21,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:12:21,383 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:12:21,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:12:21,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:12:21,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:12:21,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:12:21,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:12:21 BasicIcfg [2020-10-16 12:12:21,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:12:21,390 INFO L168 Benchmark]: Toolchain (without parser) took 3421.62 ms. Allocated memory was 139.5 MB in the beginning and 250.6 MB in the end (delta: 111.1 MB). Free memory was 101.2 MB in the beginning and 179.8 MB in the end (delta: -78.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,391 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.60 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.0 MB in the beginning and 159.1 MB in the end (delta: -58.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.84 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,394 INFO L168 Benchmark]: Boogie Preprocessor took 24.56 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,394 INFO L168 Benchmark]: RCFGBuilder took 371.88 ms. Allocated memory is still 201.9 MB. Free memory was 155.8 MB in the beginning and 135.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,395 INFO L168 Benchmark]: TraceAbstraction took 2247.05 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 135.4 MB in the beginning and 179.8 MB in the end (delta: -44.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-10-16 12:12:21,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.60 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.0 MB in the beginning and 159.1 MB in the end (delta: -58.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.84 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.56 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.88 ms. Allocated memory is still 201.9 MB. Free memory was 155.8 MB in the beginning and 135.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2247.05 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 135.4 MB in the beginning and 179.8 MB in the end (delta: -44.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 363 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 22 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1338 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...