/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:28:00,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:28:00,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:28:00,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:28:00,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:28:00,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:28:00,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:28:00,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:28:00,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:28:00,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:28:00,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:28:00,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:28:00,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:28:00,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:28:00,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:28:00,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:28:00,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:28:00,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:28:00,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:28:00,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:28:00,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:28:00,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:28:00,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:28:00,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:28:00,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:28:00,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:28:00,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:28:00,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:28:00,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:28:00,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:28:00,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:28:00,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:28:00,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:28:00,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:28:00,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:28:00,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:28:00,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:28:00,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:28:00,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:28:00,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:28:00,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:28:00,566 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-MCR.epf [2019-12-27 22:28:00,580 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:28:00,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:28:00,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:28:00,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:28:00,582 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:28:00,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:28:00,583 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:28:00,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:28:00,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:28:00,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:28:00,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:28:00,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:28:00,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:28:00,584 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:28:00,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:28:00,585 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:28:00,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:28:00,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:28:00,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:28:00,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:28:00,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:28:00,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:28:00,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:28:00,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:28:00,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:28:00,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:28:00,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:28:00,587 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:28:00,587 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:28:00,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:28:00,588 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:28:00,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:28:00,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:28:00,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:28:00,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:28:00,890 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:28:00,891 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:28:00,891 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-27 22:28:00,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0547c5292/fb67c4cb8a9045a88d2de5b58e952b70/FLAG17fbba40a [2019-12-27 22:28:01,511 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:28:01,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-27 22:28:01,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0547c5292/fb67c4cb8a9045a88d2de5b58e952b70/FLAG17fbba40a [2019-12-27 22:28:01,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0547c5292/fb67c4cb8a9045a88d2de5b58e952b70 [2019-12-27 22:28:01,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:28:01,821 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:28:01,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:28:01,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:28:01,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:28:01,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:28:01" (1/1) ... [2019-12-27 22:28:01,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cea659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:01, skipping insertion in model container [2019-12-27 22:28:01,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:28:01" (1/1) ... [2019-12-27 22:28:01,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:28:01,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:28:02,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:28:02,397 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:28:02,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:28:02,520 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:28:02,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02 WrapperNode [2019-12-27 22:28:02,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:28:02,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:28:02,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:28:02,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:28:02,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:28:02,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:28:02,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:28:02,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:28:02,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (1/1) ... [2019-12-27 22:28:02,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:28:02,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:28:02,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:28:02,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:28:02,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (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 22:28:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:28:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:28:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:28:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:28:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:28:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:28:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:28:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:28:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:28:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:28:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:28:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:28:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:28:02,669 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 22:28:03,036 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:28:03,037 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:28:03,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:28:03 BoogieIcfgContainer [2019-12-27 22:28:03,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:28:03,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:28:03,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:28:03,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:28:03,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:28:01" (1/3) ... [2019-12-27 22:28:03,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c66e6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:28:03, skipping insertion in model container [2019-12-27 22:28:03,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:02" (2/3) ... [2019-12-27 22:28:03,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c66e6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:28:03, skipping insertion in model container [2019-12-27 22:28:03,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:28:03" (3/3) ... [2019-12-27 22:28:03,047 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2019-12-27 22:28:03,058 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:28:03,059 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:28:03,066 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:28:03,068 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:28:03,100 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,103 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,103 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,104 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,104 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,105 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,105 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,105 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,106 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,108 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,109 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,109 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,109 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,113 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,113 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,113 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,114 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,114 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,121 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,124 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,124 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,124 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,133 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,134 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,134 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,135 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,137 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,138 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,138 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,138 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:03,162 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:28:03,181 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:28:03,181 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:28:03,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:28:03,182 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:28:03,182 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:28:03,182 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:28:03,182 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:28:03,182 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:28:03,197 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:28:03,199 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:28:03,246 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:28:03,246 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:28:03,253 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:28:03,255 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:28:03,274 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:28:03,274 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:28:03,276 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:28:03,278 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:28:03,279 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:28:04,576 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:28:04,713 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-27 22:28:04,713 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 22:28:04,717 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:28:04,727 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:28:04,729 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:28:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:28:04,737 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:04,738 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:04,738 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:04,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:04,744 INFO L82 PathProgramCache]: Analyzing trace with hash -196435608, now seen corresponding path program 1 times [2019-12-27 22:28:04,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:04,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327620010] [2019-12-27 22:28:04,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:04,999 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 22:28:04,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327620010] [2019-12-27 22:28:05,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:05,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:28:05,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1133408877] [2019-12-27 22:28:05,002 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:05,008 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:05,020 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:28:05,020 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:05,024 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:28:05,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:28:05,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:28:05,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:28:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:28:05,042 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:28:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:28:05,067 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 22:28:05,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:28:05,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:28:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:28:05,082 INFO L225 Difference]: With dead ends: 44 [2019-12-27 22:28:05,082 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:28:05,084 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 22:28:05,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:28:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 22:28:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 22:28:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 22:28:05,125 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 22:28:05,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:28:05,127 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 22:28:05,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:28:05,127 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 22:28:05,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:28:05,128 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:05,128 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:05,128 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:05,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1074136562, now seen corresponding path program 1 times [2019-12-27 22:28:05,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:05,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583424608] [2019-12-27 22:28:05,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:05,206 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 22:28:05,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583424608] [2019-12-27 22:28:05,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:05,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:28:05,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1757596305] [2019-12-27 22:28:05,207 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:05,208 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:05,212 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 22:28:05,212 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:05,214 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:28:05,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:28:05,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:28:05,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:28:05,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:28:05,216 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 22:28:05,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:28:05,227 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 22:28:05,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:28:05,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:28:05,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:28:05,228 INFO L225 Difference]: With dead ends: 34 [2019-12-27 22:28:05,228 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:28:05,229 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 22:28:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:28:05,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:28:05,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:28:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:28:05,237 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 22:28:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:28:05,238 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:28:05,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:28:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:28:05,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:28:05,239 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:05,239 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:05,239 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:05,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:05,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1794448346, now seen corresponding path program 1 times [2019-12-27 22:28:05,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:05,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458362948] [2019-12-27 22:28:05,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:05,314 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 22:28:05,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458362948] [2019-12-27 22:28:05,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:05,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:28:05,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1139386567] [2019-12-27 22:28:05,316 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:05,317 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:05,318 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:28:05,318 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:05,319 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:28:05,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:28:05,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:28:05,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:28:05,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:28:05,320 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:28:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:28:05,330 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 22:28:05,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:28:05,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:28:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:28:05,331 INFO L225 Difference]: With dead ends: 36 [2019-12-27 22:28:05,331 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 22:28:05,332 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 22:28:05,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 22:28:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 22:28:05,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 22:28:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 22:28:05,336 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 22:28:05,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:28:05,336 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 22:28:05,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:28:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 22:28:05,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:28:05,337 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:05,337 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:05,337 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:05,338 INFO L82 PathProgramCache]: Analyzing trace with hash 206758562, now seen corresponding path program 1 times [2019-12-27 22:28:05,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:05,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651347232] [2019-12-27 22:28:05,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:05,406 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 22:28:05,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651347232] [2019-12-27 22:28:05,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:05,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:28:05,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1419082641] [2019-12-27 22:28:05,408 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:05,409 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:05,410 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:28:05,411 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:05,411 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:28:05,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:28:05,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:28:05,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:28:05,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:28:05,412 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 22:28:05,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:28:05,440 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 22:28:05,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:28:05,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:28:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:28:05,441 INFO L225 Difference]: With dead ends: 25 [2019-12-27 22:28:05,442 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:28:05,442 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 22:28:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:28:05,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:28:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:28:05,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:28:05,445 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 22:28:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:28:05,445 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:28:05,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:28:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:28:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:28:05,446 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:05,446 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:05,447 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:05,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:05,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1297271908, now seen corresponding path program 1 times [2019-12-27 22:28:05,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:05,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528250322] [2019-12-27 22:28:05,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:05,488 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 22:28:05,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528250322] [2019-12-27 22:28:05,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:05,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:28:05,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1460047515] [2019-12-27 22:28:05,490 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:05,491 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:05,494 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:28:05,494 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:05,543 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:28:05,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:28:05,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:28:05,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:28:05,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:28:05,545 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-27 22:28:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:28:05,581 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:28:05,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:28:05,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:28:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:28:05,582 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:28:05,582 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:28:05,583 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 22:28:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:28:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:28:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:28:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:28:05,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:28:05,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:28:05,584 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:28:05,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:28:05,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:28:05,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:28:05,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:28:05 BasicIcfg [2019-12-27 22:28:05,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:28:05,591 INFO L168 Benchmark]: Toolchain (without parser) took 3772.47 ms. Allocated memory was 145.8 MB in the beginning and 245.4 MB in the end (delta: 99.6 MB). Free memory was 101.9 MB in the beginning and 150.1 MB in the end (delta: -48.2 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,592 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.55 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.7 MB in the beginning and 159.0 MB in the end (delta: -57.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.13 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 156.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,595 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,596 INFO L168 Benchmark]: RCFGBuilder took 436.41 ms. Allocated memory is still 203.4 MB. Free memory was 155.0 MB in the beginning and 134.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,596 INFO L168 Benchmark]: TraceAbstraction took 2548.93 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 133.9 MB in the beginning and 150.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-12-27 22:28:05,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.55 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 101.7 MB in the beginning and 159.0 MB in the end (delta: -57.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.13 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 156.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.59 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 436.41 ms. Allocated memory is still 203.4 MB. Free memory was 155.0 MB in the beginning and 134.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2548.93 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 133.9 MB in the beginning and 150.1 MB in the end (delta: -16.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 229 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 46 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 19 SDslu, 45 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 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...