/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:25:45,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:25:45,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:25:45,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:25:45,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:25:45,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:25:45,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:25:45,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:25:45,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:25:45,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:25:45,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:25:45,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:25:45,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:25:45,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:25:45,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:25:45,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:25:45,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:25:45,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:25:45,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:25:45,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:25:45,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:25:45,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:25:45,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:25:45,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:25:45,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:25:45,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:25:45,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:25:45,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:25:45,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:25:45,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:25:45,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:25:45,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:25:45,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:25:45,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:25:45,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:25:45,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:25:45,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:25:45,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:25:45,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:25:45,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:25:45,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:25:45,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:25:45,675 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:25:45,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:25:45,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:25:45,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:25:45,677 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:25:45,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:25:45,678 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:25:45,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:25:45,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:25:45,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:25:45,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:25:45,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:25:45,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:25:45,679 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:25:45,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:25:45,679 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:25:45,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:25:45,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:25:45,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:25:45,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:25:45,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:25:45,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:25:45,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:25:45,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:25:45,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:25:45,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:25:45,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:25:45,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:25:45,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:25:45,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:25:46,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:25:46,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:25:46,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:25:46,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:25:46,052 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:25:46,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-27 07:25:46,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52959864d/653a1e9b02204d6cb63952015cbaf933/FLAG923c75875 [2019-12-27 07:25:46,628 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:25:46,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2019-12-27 07:25:46,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52959864d/653a1e9b02204d6cb63952015cbaf933/FLAG923c75875 [2019-12-27 07:25:46,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52959864d/653a1e9b02204d6cb63952015cbaf933 [2019-12-27 07:25:46,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:25:46,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:25:46,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:25:46,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:25:46,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:25:46,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:25:46" (1/1) ... [2019-12-27 07:25:46,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fae352c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:46, skipping insertion in model container [2019-12-27 07:25:46,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:25:46" (1/1) ... [2019-12-27 07:25:46,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:25:47,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:25:47,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:25:47,487 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:25:47,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:25:47,676 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:25:47,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47 WrapperNode [2019-12-27 07:25:47,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:25:47,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:25:47,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:25:47,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:25:47,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:25:47,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:25:47,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:25:47,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:25:47,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (1/1) ... [2019-12-27 07:25:47,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:25:47,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:25:47,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:25:47,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:25:47,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (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 [2019-12-27 07:25:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:25:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:25:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:25:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:25:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:25:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:25:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:25:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:25:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:25:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:25:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:25:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:25:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:25:47,847 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:25:48,203 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:25:48,204 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:25:48,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:25:48 BoogieIcfgContainer [2019-12-27 07:25:48,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:25:48,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:25:48,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:25:48,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:25:48,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:25:46" (1/3) ... [2019-12-27 07:25:48,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c49f129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:25:48, skipping insertion in model container [2019-12-27 07:25:48,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:25:47" (2/3) ... [2019-12-27 07:25:48,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c49f129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:25:48, skipping insertion in model container [2019-12-27 07:25:48,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:25:48" (3/3) ... [2019-12-27 07:25:48,214 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2019-12-27 07:25:48,225 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:25:48,225 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:25:48,231 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:25:48,232 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:25:48,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,261 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,262 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,262 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,263 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,263 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,263 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,264 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,264 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,265 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,265 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,265 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,265 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,266 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,266 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,270 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,270 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,271 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,271 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,278 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,278 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,280 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,281 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,281 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:25:48,295 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:25:48,313 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:25:48,313 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:25:48,313 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:25:48,313 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:25:48,313 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:25:48,314 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:25:48,314 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:25:48,314 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:25:48,331 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:25:48,334 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:25:48,378 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:25:48,379 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:25:48,385 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:25:48,388 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:25:48,407 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:25:48,407 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:25:48,409 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:25:48,411 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:25:48,412 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:25:49,772 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 07:25:49,829 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-27 07:25:49,829 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 07:25:49,833 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:25:49,843 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:25:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:25:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:25:49,852 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:25:49,853 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:25:49,853 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:25:49,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:25:49,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-27 07:25:49,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:25:49,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756446381] [2019-12-27 07:25:49,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:25:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:25:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:25:50,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756446381] [2019-12-27 07:25:50,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:25:50,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:25:50,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353506911] [2019-12-27 07:25:50,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:25:50,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:25:50,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:25:50,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:25:50,157 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:25:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:25:50,199 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 07:25:50,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:25:50,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:25:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:25:50,233 INFO L225 Difference]: With dead ends: 50 [2019-12-27 07:25:50,233 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:25:50,238 INFO L631 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 [2019-12-27 07:25:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:25:50,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:25:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:25:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:25:50,288 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:25:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:25:50,291 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:25:50,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:25:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:25:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:25:50,294 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:25:50,294 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:25:50,294 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:25:50,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:25:50,295 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-27 07:25:50,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:25:50,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297789855] [2019-12-27 07:25:50,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:25:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:25:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:25:50,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297789855] [2019-12-27 07:25:50,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:25:50,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:25:50,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466024215] [2019-12-27 07:25:50,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:25:50,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:25:50,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:25:50,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:25:50,379 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:25:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:25:50,410 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 07:25:50,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:25:50,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:25:50,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:25:50,412 INFO L225 Difference]: With dead ends: 39 [2019-12-27 07:25:50,412 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 07:25:50,413 INFO L631 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 [2019-12-27 07:25:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 07:25:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 07:25:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 07:25:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 07:25:50,419 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 07:25:50,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:25:50,419 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 07:25:50,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:25:50,419 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 07:25:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:25:50,420 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:25:50,420 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:25:50,421 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:25:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:25:50,421 INFO L82 PathProgramCache]: Analyzing trace with hash 400560283, now seen corresponding path program 1 times [2019-12-27 07:25:50,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:25:50,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846265286] [2019-12-27 07:25:50,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:25:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:25:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:25:50,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846265286] [2019-12-27 07:25:50,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:25:50,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:25:50,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136551519] [2019-12-27 07:25:50,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:25:50,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:25:50,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:25:50,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:25:50,494 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 3 states. [2019-12-27 07:25:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:25:50,501 INFO L93 Difference]: Finished difference Result 30 states and 52 transitions. [2019-12-27 07:25:50,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:25:50,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:25:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:25:50,503 INFO L225 Difference]: With dead ends: 30 [2019-12-27 07:25:50,503 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 07:25:50,504 INFO L631 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 [2019-12-27 07:25:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 07:25:50,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-27 07:25:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 07:25:50,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 52 transitions. [2019-12-27 07:25:50,509 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 52 transitions. Word has length 10 [2019-12-27 07:25:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:25:50,510 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 52 transitions. [2019-12-27 07:25:50,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:25:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2019-12-27 07:25:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:25:50,511 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:25:50,511 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:25:50,511 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:25:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:25:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-27 07:25:50,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:25:50,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247786981] [2019-12-27 07:25:50,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:25:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:25:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:25:50,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247786981] [2019-12-27 07:25:50,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:25:50,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:25:50,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530909996] [2019-12-27 07:25:50,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:25:50,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:25:50,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:25:50,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:25:50,568 INFO L87 Difference]: Start difference. First operand 30 states and 52 transitions. Second operand 4 states. [2019-12-27 07:25:50,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:25:50,588 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2019-12-27 07:25:50,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:25:50,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 07:25:50,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:25:50,589 INFO L225 Difference]: With dead ends: 35 [2019-12-27 07:25:50,589 INFO L226 Difference]: Without dead ends: 23 [2019-12-27 07:25:50,590 INFO L631 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 [2019-12-27 07:25:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-27 07:25:50,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-27 07:25:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-27 07:25:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2019-12-27 07:25:50,593 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 34 transitions. Word has length 10 [2019-12-27 07:25:50,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:25:50,594 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 34 transitions. [2019-12-27 07:25:50,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:25:50,594 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2019-12-27 07:25:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:25:50,595 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:25:50,595 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:25:50,595 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:25:50,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:25:50,596 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-27 07:25:50,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:25:50,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10581622] [2019-12-27 07:25:50,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:25:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:25:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:25:50,645 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10581622] [2019-12-27 07:25:50,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:25:50,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:25:50,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965553795] [2019-12-27 07:25:50,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:25:50,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:25:50,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:25:50,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:25:50,647 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand 3 states. [2019-12-27 07:25:50,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:25:50,660 INFO L93 Difference]: Finished difference Result 22 states and 33 transitions. [2019-12-27 07:25:50,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:25:50,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 07:25:50,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:25:50,661 INFO L225 Difference]: With dead ends: 22 [2019-12-27 07:25:50,661 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:25:50,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:25:50,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:25:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:25:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:25:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:25:50,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:25:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:25:50,662 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:25:50,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:25:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:25:50,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:25:50,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:25:50 BasicIcfg [2019-12-27 07:25:50,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:25:50,673 INFO L168 Benchmark]: Toolchain (without parser) took 3700.43 ms. Allocated memory was 146.3 MB in the beginning and 244.8 MB in the end (delta: 98.6 MB). Free memory was 102.5 MB in the beginning and 154.3 MB in the end (delta: -51.9 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,674 INFO L168 Benchmark]: CDTParser took 1.56 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.16 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 158.8 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,683 INFO L168 Benchmark]: Boogie Preprocessor took 46.96 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,684 INFO L168 Benchmark]: RCFGBuilder took 431.73 ms. Allocated memory is still 203.9 MB. Free memory was 155.5 MB in the beginning and 134.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,685 INFO L168 Benchmark]: TraceAbstraction took 2462.57 ms. Allocated memory was 203.9 MB in the beginning and 244.8 MB in the end (delta: 40.9 MB). Free memory was 134.1 MB in the beginning and 154.3 MB in the end (delta: -20.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 07:25:50,695 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.56 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.16 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 158.8 MB in the end (delta: -56.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 156.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.96 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.73 ms. Allocated memory is still 203.9 MB. Free memory was 155.5 MB in the beginning and 134.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2462.57 ms. Allocated memory was 203.9 MB in the beginning and 244.8 MB in the end (delta: 40.9 MB). Free memory was 134.1 MB in the beginning and 154.3 MB in the end (delta: -20.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 28 SDslu, 34 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1025 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...