/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/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:12:34,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:12:34,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:12:34,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:12:34,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:12:34,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:12:34,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:12:34,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:12:34,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:12:34,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:12:34,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:12:34,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:12:34,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:12:34,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:12:34,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:12:34,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:12:34,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:12:34,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:12:34,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:12:34,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:12:34,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:12:34,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:12:34,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:12:34,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:12:34,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:12:34,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:12:34,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:12:34,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:12:34,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:12:34,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:12:34,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:12:34,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:12:34,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:12:34,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:12:34,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:12:34,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:12:34,527 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 00:12:34,558 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:12:34,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:12:34,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:12:34,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:12:34,564 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:12:34,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:12:34,564 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:12:34,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:12:34,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:12:34,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:12:34,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:12:34,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:12:34,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:12:34,567 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:12:34,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:12:34,568 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:12:34,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:12:34,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:12:34,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:12:34,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:12:34,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:12:34,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:12:34,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:12:34,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:12:34,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:12:34,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:12:34,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:12:34,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:12:34,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:12:34,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:12:34,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:12:34,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:12:34,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:12:34,895 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:12:34,896 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:12:34,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2019-12-27 00:12:34,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b324bcc/7d04ff34ad514af88a4949dfa24ca6c8/FLAG78aa72a5b [2019-12-27 00:12:35,444 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:12:35,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2019-12-27 00:12:35,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b324bcc/7d04ff34ad514af88a4949dfa24ca6c8/FLAG78aa72a5b [2019-12-27 00:12:35,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b324bcc/7d04ff34ad514af88a4949dfa24ca6c8 [2019-12-27 00:12:35,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:12:35,780 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:12:35,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:12:35,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:12:35,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:12:35,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:12:35" (1/1) ... [2019-12-27 00:12:35,788 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 12:12:35, skipping insertion in model container [2019-12-27 00:12:35,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:12:35" (1/1) ... [2019-12-27 00:12:35,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:12:35,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:12:36,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:12:36,332 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:12:36,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:12:36,476 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:12:36,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36 WrapperNode [2019-12-27 00:12:36,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:12:36,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:12:36,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:12:36,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:12:36,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,503 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:12:36,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:12:36,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:12:36,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:12:36,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (1/1) ... [2019-12-27 00:12:36,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:12:36,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:12:36,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:12:36,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:12:36,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (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 00:12:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:12:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:12:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:12:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:12:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 00:12:36,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 00:12:36,619 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 00:12:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 00:12:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 00:12:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 00:12:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:12:36,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:12:36,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:12:36,622 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 00:12:36,974 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:12:36,975 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 00:12:36,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:12:36 BoogieIcfgContainer [2019-12-27 00:12:36,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:12:36,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:12:36,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:12:36,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:12:36,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:12:35" (1/3) ... [2019-12-27 00:12:36,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f451286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:12:36, skipping insertion in model container [2019-12-27 00:12:36,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:12:36" (2/3) ... [2019-12-27 00:12:36,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f451286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:12:36, skipping insertion in model container [2019-12-27 00:12:36,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:12:36" (3/3) ... [2019-12-27 00:12:36,984 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2019-12-27 00:12:36,994 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:12:36,994 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:12:37,001 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:12:37,002 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:12:37,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,032 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,032 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,033 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,033 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,033 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,034 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,034 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,034 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,034 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,035 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,035 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,035 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,036 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,036 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,036 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,036 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,037 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,041 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,041 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,041 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,042 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,049 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,049 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,049 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,050 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,052 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,053 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,053 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,053 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:12:37,066 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:12:37,080 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:12:37,081 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:12:37,081 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:12:37,081 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:12:37,081 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:12:37,081 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:12:37,081 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:12:37,082 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:12:37,094 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 00:12:37,097 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:12:37,140 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:12:37,140 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:12:37,148 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:12:37,151 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 00:12:37,174 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 00:12:37,174 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:12:37,176 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 00:12:37,177 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 00:12:37,178 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:12:38,824 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 00:12:38,906 INFO L206 etLargeBlockEncoding]: Checked pairs total: 453 [2019-12-27 00:12:38,907 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 00:12:38,912 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 00:12:38,928 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 00:12:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 00:12:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:12:38,942 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:12:38,943 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:12:38,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:12:38,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:12:38,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1890044162, now seen corresponding path program 1 times [2019-12-27 00:12:38,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:12:38,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853930187] [2019-12-27 00:12:38,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:12:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:12:39,228 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 00:12:39,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853930187] [2019-12-27 00:12:39,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:12:39,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:12:39,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072471306] [2019-12-27 00:12:39,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:12:39,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:12:39,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:12:39,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:12:39,254 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 00:12:39,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:12:39,285 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 00:12:39,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:12:39,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 00:12:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:12:39,299 INFO L225 Difference]: With dead ends: 42 [2019-12-27 00:12:39,299 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 00:12:39,301 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 00:12:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 00:12:39,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 00:12:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 00:12:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 00:12:39,340 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 00:12:39,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:12:39,342 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 00:12:39,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:12:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 00:12:39,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:12:39,343 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:12:39,343 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:12:39,343 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:12:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:12:39,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1538098686, now seen corresponding path program 1 times [2019-12-27 00:12:39,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:12:39,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142548098] [2019-12-27 00:12:39,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:12:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:12:39,458 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 00:12:39,458 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142548098] [2019-12-27 00:12:39,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:12:39,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:12:39,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988494748] [2019-12-27 00:12:39,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:12:39,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:12:39,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:12:39,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:12:39,463 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 00:12:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:12:39,496 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 00:12:39,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:12:39,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 00:12:39,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:12:39,498 INFO L225 Difference]: With dead ends: 36 [2019-12-27 00:12:39,498 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 00:12:39,499 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 00:12:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 00:12:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 00:12:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 00:12:39,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 00:12:39,505 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 00:12:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:12:39,505 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 00:12:39,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:12:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 00:12:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:12:39,506 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:12:39,507 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:12:39,507 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:12:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:12:39,507 INFO L82 PathProgramCache]: Analyzing trace with hash -548239570, now seen corresponding path program 1 times [2019-12-27 00:12:39,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:12:39,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549877153] [2019-12-27 00:12:39,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:12:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:12:39,607 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 00:12:39,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549877153] [2019-12-27 00:12:39,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:12:39,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:12:39,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474130600] [2019-12-27 00:12:39,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:12:39,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:12:39,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:12:39,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:12:39,610 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 6 states. [2019-12-27 00:12:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:12:39,691 INFO L93 Difference]: Finished difference Result 28 states and 45 transitions. [2019-12-27 00:12:39,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:12:39,692 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 00:12:39,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:12:39,693 INFO L225 Difference]: With dead ends: 28 [2019-12-27 00:12:39,693 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 00:12:39,693 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 00:12:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 00:12:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 00:12:39,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 00:12:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 00:12:39,697 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 10 [2019-12-27 00:12:39,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:12:39,698 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 00:12:39,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:12:39,698 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 00:12:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:12:39,698 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:12:39,699 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:12:39,699 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:12:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:12:39,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1277925028, now seen corresponding path program 1 times [2019-12-27 00:12:39,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:12:39,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980906453] [2019-12-27 00:12:39,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:12:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:12:39,750 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 00:12:39,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980906453] [2019-12-27 00:12:39,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:12:39,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:12:39,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840937123] [2019-12-27 00:12:39,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:12:39,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:12:39,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:12:39,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:12:39,752 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 00:12:39,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:12:39,774 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2019-12-27 00:12:39,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:12:39,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:12:39,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:12:39,775 INFO L225 Difference]: With dead ends: 24 [2019-12-27 00:12:39,776 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 00:12:39,776 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:12:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 00:12:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 00:12:39,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 00:12:39,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 00:12:39,779 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 00:12:39,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:12:39,779 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 00:12:39,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:12:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 00:12:39,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:12:39,780 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:12:39,780 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:12:39,780 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:12:39,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:12:39,781 INFO L82 PathProgramCache]: Analyzing trace with hash 184515028, now seen corresponding path program 2 times [2019-12-27 00:12:39,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:12:39,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273723130] [2019-12-27 00:12:39,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:12:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:12:39,825 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 00:12:39,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273723130] [2019-12-27 00:12:39,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:12:39,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:12:39,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985760051] [2019-12-27 00:12:39,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:12:39,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:12:39,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:12:39,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:12:39,828 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-27 00:12:39,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:12:39,858 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 00:12:39,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:12:39,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 00:12:39,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:12:39,859 INFO L225 Difference]: With dead ends: 13 [2019-12-27 00:12:39,859 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:12:39,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:12:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:12:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:12:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:12:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:12:39,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 00:12:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:12:39,860 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:12:39,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:12:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:12:39,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:12:39,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:12:39 BasicIcfg [2019-12-27 00:12:39,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:12:39,871 INFO L168 Benchmark]: Toolchain (without parser) took 4090.75 ms. Allocated memory was 141.6 MB in the beginning and 244.3 MB in the end (delta: 102.8 MB). Free memory was 103.4 MB in the beginning and 210.1 MB in the end (delta: -106.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 00:12:39,872 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 00:12:39,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.82 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 162.0 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:12:39,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:12:39,875 INFO L168 Benchmark]: Boogie Preprocessor took 26.45 ms. Allocated memory is still 205.0 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:12:39,875 INFO L168 Benchmark]: RCFGBuilder took 423.96 ms. Allocated memory is still 205.0 MB. Free memory was 158.2 MB in the beginning and 138.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 00:12:39,876 INFO L168 Benchmark]: TraceAbstraction took 2887.68 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 137.6 MB in the beginning and 210.1 MB in the end (delta: -72.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 00:12:39,881 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 141.6 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.82 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 162.0 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 205.0 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.45 ms. Allocated memory is still 205.0 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.96 ms. Allocated memory is still 205.0 MB. Free memory was 158.2 MB in the beginning and 138.2 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2887.68 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 137.6 MB in the beginning and 210.1 MB in the end (delta: -72.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 238 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 453 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 43 SDslu, 50 SDs, 0 SdLazy, 39 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 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...