/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/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:21:14,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:21:14,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:21:14,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:21:14,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:21:14,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:21:14,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:21:14,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:21:14,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:21:14,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:21:14,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:21:14,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:21:14,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:21:14,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:21:14,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:21:14,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:21:14,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:21:14,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:21:14,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:21:14,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:21:14,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:21:14,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:21:14,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:21:14,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:21:14,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:21:14,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:21:14,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:21:14,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:21:14,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:21:14,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:21:14,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:21:14,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:21:14,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:21:14,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:21:14,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:21:14,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:21:14,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:21:14,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:21:14,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:21:14,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:21:14,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:21:14,702 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 07:21:14,722 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:21:14,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:21:14,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:21:14,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:21:14,725 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:21:14,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:21:14,725 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:21:14,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:21:14,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:21:14,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:21:14,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:21:14,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:21:14,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:21:14,728 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:21:14,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:21:14,728 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:21:14,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:21:14,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:21:14,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:21:14,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:21:14,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:21:14,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:21:14,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:21:14,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:21:14,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:21:14,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:21:14,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:21:14,731 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:21:14,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:21:14,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:21:14,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:21:15,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:21:15,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:21:15,019 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:21:15,019 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:21:15,020 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-27 07:21:15,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0896fc0c7/a0698827ad514f29aa5a9ffa05bd2d33/FLAG27731a403 [2019-12-27 07:21:15,659 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:21:15,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2019-12-27 07:21:15,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0896fc0c7/a0698827ad514f29aa5a9ffa05bd2d33/FLAG27731a403 [2019-12-27 07:21:15,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0896fc0c7/a0698827ad514f29aa5a9ffa05bd2d33 [2019-12-27 07:21:15,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:21:15,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:21:15,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:21:15,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:21:15,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:21:15,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:21:15" (1/1) ... [2019-12-27 07:21:15,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de97eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:15, skipping insertion in model container [2019-12-27 07:21:15,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:21:15" (1/1) ... [2019-12-27 07:21:15,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:21:16,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:21:16,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:21:16,515 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:21:16,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:21:16,667 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:21:16,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16 WrapperNode [2019-12-27 07:21:16,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:21:16,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:21:16,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:21:16,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:21:16,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:21:16,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:21:16,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:21:16,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:21:16,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (1/1) ... [2019-12-27 07:21:16,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:21:16,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:21:16,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:21:16,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:21:16,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (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 07:21:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:21:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:21:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:21:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:21:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:21:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:21:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:21:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:21:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:21:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:21:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:21:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:21:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:21:16,820 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 07:21:17,192 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:21:17,192 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:21:17,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:21:17 BoogieIcfgContainer [2019-12-27 07:21:17,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:21:17,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:21:17,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:21:17,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:21:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:21:15" (1/3) ... [2019-12-27 07:21:17,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8eed0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:21:17, skipping insertion in model container [2019-12-27 07:21:17,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:21:16" (2/3) ... [2019-12-27 07:21:17,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8eed0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:21:17, skipping insertion in model container [2019-12-27 07:21:17,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:21:17" (3/3) ... [2019-12-27 07:21:17,202 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2019-12-27 07:21:17,213 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:21:17,213 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:21:17,220 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:21:17,221 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:21:17,249 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,250 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,250 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,251 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,251 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,251 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,252 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,252 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,252 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,253 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,253 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,253 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,259 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,260 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,260 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,260 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,273 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,273 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,274 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,274 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,276 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,277 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,277 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,277 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:21:17,297 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:21:17,316 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:21:17,316 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:21:17,316 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:21:17,316 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:21:17,317 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:21:17,317 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:21:17,317 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:21:17,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:21:17,332 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 07:21:17,334 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:21:17,387 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:21:17,388 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:21:17,394 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:21:17,396 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:21:17,415 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:21:17,415 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:21:17,416 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:21:17,418 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:21:17,419 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:21:18,840 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 07:21:18,901 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-27 07:21:18,901 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 07:21:18,905 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:21:18,915 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:21:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:21:18,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:21:18,925 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:21:18,926 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:21:18,926 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:21:18,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:21:18,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-27 07:21:18,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:21:18,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521955948] [2019-12-27 07:21:18,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:21:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:21:19,152 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 07:21:19,153 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521955948] [2019-12-27 07:21:19,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:21:19,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:21:19,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424740898] [2019-12-27 07:21:19,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:21:19,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:21:19,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:21:19,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:21:19,178 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:21:19,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:21:19,208 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 07:21:19,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:21:19,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:21:19,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:21:19,222 INFO L225 Difference]: With dead ends: 50 [2019-12-27 07:21:19,223 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:21:19,224 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 07:21:19,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:21:19,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:21:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:21:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:21:19,264 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:21:19,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:21:19,265 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:21:19,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:21:19,266 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:21:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:21:19,267 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:21:19,267 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:21:19,267 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:21:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:21:19,268 INFO L82 PathProgramCache]: Analyzing trace with hash 830846190, now seen corresponding path program 1 times [2019-12-27 07:21:19,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:21:19,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147455121] [2019-12-27 07:21:19,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:21:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:21:19,413 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 07:21:19,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147455121] [2019-12-27 07:21:19,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:21:19,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:21:19,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886347357] [2019-12-27 07:21:19,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:21:19,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:21:19,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:21:19,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:21:19,416 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:21:19,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:21:19,443 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 07:21:19,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:21:19,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:21:19,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:21:19,444 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:21:19,445 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:21:19,446 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 07:21:19,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:21:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:21:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:21:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 07:21:19,451 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 07:21:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:21:19,451 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 07:21:19,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:21:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 07:21:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:21:19,452 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:21:19,452 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:21:19,452 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:21:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:21:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-12-27 07:21:19,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:21:19,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245396538] [2019-12-27 07:21:19,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:21:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:21:19,530 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 07:21:19,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245396538] [2019-12-27 07:21:19,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:21:19,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:21:19,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577242494] [2019-12-27 07:21:19,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:21:19,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:21:19,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:21:19,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:21:19,532 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 07:21:19,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:21:19,537 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 07:21:19,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:21:19,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:21:19,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:21:19,538 INFO L225 Difference]: With dead ends: 27 [2019-12-27 07:21:19,538 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 07:21:19,539 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 07:21:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 07:21:19,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 07:21:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 07:21:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 07:21:19,542 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 07:21:19,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:21:19,543 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 07:21:19,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:21:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 07:21:19,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:21:19,544 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:21:19,544 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:21:19,544 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:21:19,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:21:19,544 INFO L82 PathProgramCache]: Analyzing trace with hash 527638481, now seen corresponding path program 1 times [2019-12-27 07:21:19,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:21:19,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909677605] [2019-12-27 07:21:19,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:21:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:21:19,602 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 07:21:19,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909677605] [2019-12-27 07:21:19,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:21:19,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:21:19,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140157352] [2019-12-27 07:21:19,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:21:19,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:21:19,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:21:19,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:21:19,605 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 07:21:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:21:19,630 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-27 07:21:19,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:21:19,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:21:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:21:19,637 INFO L225 Difference]: With dead ends: 33 [2019-12-27 07:21:19,637 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 07:21:19,638 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 07:21:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 07:21:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 07:21:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 07:21:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-12-27 07:21:19,641 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 30 transitions. Word has length 11 [2019-12-27 07:21:19,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:21:19,641 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-27 07:21:19,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:21:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2019-12-27 07:21:19,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:21:19,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:21:19,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:21:19,643 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:21:19,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:21:19,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1391310681, now seen corresponding path program 2 times [2019-12-27 07:21:19,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:21:19,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971093727] [2019-12-27 07:21:19,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:21:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:21:19,680 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 07:21:19,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971093727] [2019-12-27 07:21:19,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:21:19,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:21:19,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118775867] [2019-12-27 07:21:19,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:21:19,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:21:19,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:21:19,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:21:19,682 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand 3 states. [2019-12-27 07:21:19,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:21:19,689 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2019-12-27 07:21:19,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:21:19,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 07:21:19,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:21:19,690 INFO L225 Difference]: With dead ends: 20 [2019-12-27 07:21:19,690 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:21:19,691 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 07:21:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:21:19,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:21:19,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:21:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:21:19,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:21:19,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:21:19,692 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:21:19,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:21:19,692 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:21:19,692 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:21:19,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:21:19 BasicIcfg [2019-12-27 07:21:19,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:21:19,701 INFO L168 Benchmark]: Toolchain (without parser) took 3747.43 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 100.6 MB in the beginning and 161.4 MB in the end (delta: -60.8 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,702 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.17 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 160.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,706 INFO L168 Benchmark]: Boogie Preprocessor took 30.39 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,706 INFO L168 Benchmark]: RCFGBuilder took 437.50 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,708 INFO L168 Benchmark]: TraceAbstraction took 2503.99 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 136.3 MB in the beginning and 161.4 MB in the end (delta: -25.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:21:19,716 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.17 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 160.2 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.26 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.39 ms. Allocated memory is still 203.4 MB. Free memory was 158.2 MB in the beginning and 156.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.50 ms. Allocated memory is still 203.4 MB. Free memory was 156.9 MB in the beginning and 136.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2503.99 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 136.3 MB in the beginning and 161.4 MB in the end (delta: -25.1 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 27 SDslu, 30 SDs, 0 SdLazy, 23 SolverSat, 3 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1002 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...