/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:19:37,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:19:37,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:19:37,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:19:37,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:19:37,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:19:37,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:19:37,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:19:37,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:19:37,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:19:37,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:19:37,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:19:37,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:19:37,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:19:37,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:19:37,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:19:37,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:19:37,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:19:37,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:19:37,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:19:37,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:19:37,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:19:37,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:19:37,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:19:37,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 00:19:37,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 00:19:37,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 00:19:37,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 00:19:37,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 00:19:37,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 00:19:37,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:19:37,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:19:37,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:19:37,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:19:37,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:19:37,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:19:37,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:19:37,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:19:37,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:19:37,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:19:37,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:19:37,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-27 00:19:37,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:19:37,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:19:37,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:19:37,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:19:37,631 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:19:37,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:19:37,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:19:37,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:19:37,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:19:37,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:19:37,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:19:37,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:19:37,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:19:37,633 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:19:37,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:19:37,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:19:37,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:19:37,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:19:37,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:19:37,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:19:37,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:19:37,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:19:37,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:19:37,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:19:37,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:19:37,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:19:37,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:19:37,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:19:37,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:19:37,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:19:37,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:19:37,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:19:37,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:19:37,963 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:19:37,963 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:19:37,964 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2019-12-27 00:19:38,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f890d94/2ad5bd1c9202493f954ccf0a4c0aebc3/FLAGf5ee0cbf9 [2019-12-27 00:19:38,577 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:19:38,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_pso.oepc.i [2019-12-27 00:19:38,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f890d94/2ad5bd1c9202493f954ccf0a4c0aebc3/FLAGf5ee0cbf9 [2019-12-27 00:19:38,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94f890d94/2ad5bd1c9202493f954ccf0a4c0aebc3 [2019-12-27 00:19:38,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:19:38,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:19:38,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:19:38,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:19:38,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:19:38,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:19:38" (1/1) ... [2019-12-27 00:19:38,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789a3507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:38, skipping insertion in model container [2019-12-27 00:19:38,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:19:38" (1/1) ... [2019-12-27 00:19:38,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:19:38,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:19:39,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:19:39,454 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:19:39,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:19:39,603 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:19:39,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39 WrapperNode [2019-12-27 00:19:39,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:19:39,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:19:39,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:19:39,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:19:39,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:19:39,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:19:39,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:19:39,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:19:39,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (1/1) ... [2019-12-27 00:19:39,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:19:39,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:19:39,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:19:39,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:19:39,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (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 00:19:39,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:19:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:19:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:19:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:19:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 00:19:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 00:19:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 00:19:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 00:19:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 00:19:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 00:19:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:19:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:19:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:19:39,748 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 00:19:40,109 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:19:40,109 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:19:40,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:19:40 BoogieIcfgContainer [2019-12-27 00:19:40,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:19:40,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:19:40,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:19:40,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:19:40,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:19:38" (1/3) ... [2019-12-27 00:19:40,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4562d660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:19:40, skipping insertion in model container [2019-12-27 00:19:40,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:19:39" (2/3) ... [2019-12-27 00:19:40,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4562d660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:19:40, skipping insertion in model container [2019-12-27 00:19:40,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:19:40" (3/3) ... [2019-12-27 00:19:40,119 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2019-12-27 00:19:40,130 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:19:40,131 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:19:40,138 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:19:40,139 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:19:40,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,171 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,171 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,171 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,172 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,172 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,173 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,174 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,174 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,174 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,180 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,181 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,181 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,181 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,196 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,196 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,197 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,197 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,199 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,199 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,199 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,200 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:19:40,225 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:19:40,248 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:19:40,248 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:19:40,248 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:19:40,248 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:19:40,249 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:19:40,250 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:19:40,250 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:19:40,250 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:19:40,263 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 00:19:40,265 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 00:19:40,308 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 00:19:40,308 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:19:40,314 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:19:40,317 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 00:19:40,341 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 00:19:40,341 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:19:40,343 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:19:40,345 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 00:19:40,346 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:19:41,845 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 00:19:41,977 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 00:19:41,978 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 00:19:41,981 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 00:19:41,989 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 00:19:41,991 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 00:19:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:19:41,998 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:41,999 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:41,999 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:42,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:42,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-27 00:19:42,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:42,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868791442] [2019-12-27 00:19:42,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:42,226 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 00:19:42,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868791442] [2019-12-27 00:19:42,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:42,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:19:42,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51903573] [2019-12-27 00:19:42,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:19:42,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:19:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:19:42,253 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 00:19:42,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:42,292 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 00:19:42,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:19:42,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 00:19:42,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:42,307 INFO L225 Difference]: With dead ends: 42 [2019-12-27 00:19:42,307 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 00:19:42,309 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 00:19:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 00:19:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 00:19:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 00:19:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 00:19:42,349 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 00:19:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:42,350 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 00:19:42,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:19:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 00:19:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:19:42,351 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:42,351 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:42,352 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:42,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:42,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-12-27 00:19:42,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:42,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433207449] [2019-12-27 00:19:42,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:42,493 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 00:19:42,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433207449] [2019-12-27 00:19:42,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:42,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:19:42,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74330479] [2019-12-27 00:19:42,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:42,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:42,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:42,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:42,497 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 00:19:42,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:42,520 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 00:19:42,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:42,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 00:19:42,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:42,521 INFO L225 Difference]: With dead ends: 36 [2019-12-27 00:19:42,522 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 00:19:42,523 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 00:19:42,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 00:19:42,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 00:19:42,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 00:19:42,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 00:19:42,528 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 00:19:42,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:42,529 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 00:19:42,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:42,529 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 00:19:42,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:19:42,530 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:42,530 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:42,530 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:42,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:42,530 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-12-27 00:19:42,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:42,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033579755] [2019-12-27 00:19:42,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:42,611 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 00:19:42,612 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033579755] [2019-12-27 00:19:42,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:42,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:19:42,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107908836] [2019-12-27 00:19:42,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:19:42,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:42,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:19:42,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:19:42,614 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 00:19:42,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:42,620 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 00:19:42,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:19:42,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 00:19:42,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:42,621 INFO L225 Difference]: With dead ends: 27 [2019-12-27 00:19:42,622 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 00:19:42,622 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 00:19:42,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 00:19:42,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 00:19:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 00:19:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 00:19:42,627 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 00:19:42,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:42,627 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 00:19:42,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:19:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 00:19:42,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:19:42,628 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:42,628 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:42,629 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:42,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:42,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-12-27 00:19:42,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:42,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996581593] [2019-12-27 00:19:42,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:42,699 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 00:19:42,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996581593] [2019-12-27 00:19:42,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:42,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:19:42,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988754617] [2019-12-27 00:19:42,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:42,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:42,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:42,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:42,703 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 00:19:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:42,728 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 00:19:42,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:42,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:19:42,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:42,730 INFO L225 Difference]: With dead ends: 29 [2019-12-27 00:19:42,730 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 00:19:42,730 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 00:19:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 00:19:42,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 00:19:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 00:19:42,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 00:19:42,733 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 00:19:42,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:42,735 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 00:19:42,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:42,735 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 00:19:42,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:19:42,737 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:19:42,737 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:19:42,737 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:19:42,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:19:42,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-27 00:19:42,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:19:42,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763981183] [2019-12-27 00:19:42,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:19:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:19:42,817 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 00:19:42,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763981183] [2019-12-27 00:19:42,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:19:42,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:19:42,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292103136] [2019-12-27 00:19:42,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:19:42,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:19:42,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:19:42,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:19:42,823 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 00:19:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:19:42,848 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 00:19:42,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:19:42,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:19:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:19:42,849 INFO L225 Difference]: With dead ends: 16 [2019-12-27 00:19:42,850 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:19:42,850 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 00:19:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:19:42,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:19:42,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:19:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:19:42,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 00:19:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:19:42,852 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:19:42,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:19:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:19:42,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:19:42,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:19:42 BasicIcfg [2019-12-27 00:19:42,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:19:42,863 INFO L168 Benchmark]: Toolchain (without parser) took 3946.44 ms. Allocated memory was 142.1 MB in the beginning and 255.9 MB in the end (delta: 113.8 MB). Free memory was 98.6 MB in the beginning and 151.5 MB in the end (delta: -52.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,864 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.77 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 98.2 MB in the beginning and 153.7 MB in the end (delta: -55.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.20 ms. Allocated memory is still 199.2 MB. Free memory was 153.7 MB in the beginning and 151.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,870 INFO L168 Benchmark]: Boogie Preprocessor took 25.78 ms. Allocated memory is still 199.2 MB. Free memory was 151.5 MB in the beginning and 150.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,873 INFO L168 Benchmark]: RCFGBuilder took 426.72 ms. Allocated memory is still 199.2 MB. Free memory was 150.0 MB in the beginning and 129.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,874 INFO L168 Benchmark]: TraceAbstraction took 2749.09 ms. Allocated memory was 199.2 MB in the beginning and 255.9 MB in the end (delta: 56.6 MB). Free memory was 129.4 MB in the beginning and 151.5 MB in the end (delta: -22.1 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:19:42,880 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.77 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 98.2 MB in the beginning and 153.7 MB in the end (delta: -55.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.20 ms. Allocated memory is still 199.2 MB. Free memory was 153.7 MB in the beginning and 151.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.78 ms. Allocated memory is still 199.2 MB. Free memory was 151.5 MB in the beginning and 150.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 426.72 ms. Allocated memory is still 199.2 MB. Free memory was 150.0 MB in the beginning and 129.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2749.09 ms. Allocated memory was 199.2 MB in the beginning and 255.9 MB in the end (delta: 56.6 MB). Free memory was 129.4 MB in the beginning and 151.5 MB in the end (delta: -22.1 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 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...