/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:31:19,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:31:19,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:31:19,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:31:19,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:31:19,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:31:19,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:31:19,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:31:19,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:31:19,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:31:19,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:31:19,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:31:19,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:31:19,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:31:19,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:31:19,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:31:19,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:31:19,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:31:19,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:31:19,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:31:19,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:31:19,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:31:19,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:31:19,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:31:19,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:31:19,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:31:19,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:31:19,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:31:19,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:31:19,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:31:19,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:31:19,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:31:19,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:31:19,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:31:19,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:31:19,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:31:19,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:31:19,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:31:19,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:31:19,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:31:19,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:31:19,639 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-NoLbe-MCR.epf [2019-12-28 04:31:19,660 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:31:19,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:31:19,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:31:19,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:31:19,662 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:31:19,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:31:19,662 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:31:19,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:31:19,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:31:19,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:31:19,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:31:19,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:31:19,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:31:19,663 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:31:19,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:31:19,664 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:31:19,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:31:19,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:31:19,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:31:19,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:31:19,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:31:19,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:31:19,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:31:19,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:31:19,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:31:19,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:31:19,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:31:19,666 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:31:19,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:31:19,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:31:19,667 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:31:19,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:31:19,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:31:19,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:31:19,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:31:19,948 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:31:19,949 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:31:19,950 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2019-12-28 04:31:20,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4c2c1c3e/a259b2244d9d4b34b2d261aac6b21360/FLAG9600643b7 [2019-12-28 04:31:20,557 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:31:20,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2019-12-28 04:31:20,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4c2c1c3e/a259b2244d9d4b34b2d261aac6b21360/FLAG9600643b7 [2019-12-28 04:31:20,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4c2c1c3e/a259b2244d9d4b34b2d261aac6b21360 [2019-12-28 04:31:20,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:31:20,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:31:20,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:31:20,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:31:20,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:31:20,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:31:20" (1/1) ... [2019-12-28 04:31:20,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624acdd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:20, skipping insertion in model container [2019-12-28 04:31:20,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:31:20" (1/1) ... [2019-12-28 04:31:20,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:31:20,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:31:21,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:31:21,396 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:31:21,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:31:21,537 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:31:21,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21 WrapperNode [2019-12-28 04:31:21,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:31:21,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:31:21,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:31:21,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:31:21,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:31:21,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:31:21,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:31:21,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:31:21,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (1/1) ... [2019-12-28 04:31:21,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:31:21,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:31:21,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:31:21,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:31:21,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (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 [2019-12-28 04:31:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:31:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:31:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:31:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:31:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:31:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:31:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:31:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:31:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:31:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:31:21,703 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:31:22,072 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:31:22,073 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:31:22,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:31:22 BoogieIcfgContainer [2019-12-28 04:31:22,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:31:22,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:31:22,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:31:22,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:31:22,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:31:20" (1/3) ... [2019-12-28 04:31:22,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641914ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:31:22, skipping insertion in model container [2019-12-28 04:31:22,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:31:21" (2/3) ... [2019-12-28 04:31:22,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641914ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:31:22, skipping insertion in model container [2019-12-28 04:31:22,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:31:22" (3/3) ... [2019-12-28 04:31:22,082 INFO L109 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2019-12-28 04:31:22,091 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:31:22,092 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:31:22,100 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:31:22,101 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:31:22,125 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,126 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,126 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,126 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,127 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,127 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,127 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,127 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,128 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,128 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,128 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,128 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,132 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,132 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,133 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,133 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,138 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,139 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,139 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,139 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:31:22,155 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-28 04:31:22,173 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:31:22,173 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:31:22,173 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:31:22,173 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:31:22,174 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:31:22,174 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:31:22,174 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:31:22,174 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:31:22,185 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 42 transitions [2019-12-28 04:31:22,214 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 286 states. [2019-12-28 04:31:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2019-12-28 04:31:22,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-28 04:31:22,228 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:31:22,229 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:31:22,229 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:31:22,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:31:22,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2066375541, now seen corresponding path program 1 times [2019-12-28 04:31:22,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:31:22,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108669618] [2019-12-28 04:31:22,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:31:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:31:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:31:22,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108669618] [2019-12-28 04:31:22,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:31:22,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:31:22,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1599316037] [2019-12-28 04:31:22,624 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:31:22,630 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:31:22,649 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 25 transitions. [2019-12-28 04:31:22,649 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:31:22,653 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:31:22,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:31:22,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:31:22,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:31:22,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:31:22,671 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 5 states. [2019-12-28 04:31:22,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:31:22,755 INFO L93 Difference]: Finished difference Result 287 states and 646 transitions. [2019-12-28 04:31:22,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:31:22,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-28 04:31:22,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:31:22,770 INFO L225 Difference]: With dead ends: 287 [2019-12-28 04:31:22,770 INFO L226 Difference]: Without dead ends: 151 [2019-12-28 04:31:22,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:31:22,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-12-28 04:31:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-12-28 04:31:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-12-28 04:31:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 325 transitions. [2019-12-28 04:31:22,830 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 325 transitions. Word has length 25 [2019-12-28 04:31:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:31:22,831 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 325 transitions. [2019-12-28 04:31:22,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:31:22,831 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 325 transitions. [2019-12-28 04:31:22,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-28 04:31:22,833 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:31:22,833 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:31:22,834 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:31:22,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:31:22,834 INFO L82 PathProgramCache]: Analyzing trace with hash -892707965, now seen corresponding path program 1 times [2019-12-28 04:31:22,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:31:22,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049580214] [2019-12-28 04:31:22,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:31:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:31:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:31:23,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049580214] [2019-12-28 04:31:23,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:31:23,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:31:23,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1174540640] [2019-12-28 04:31:23,009 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:31:23,011 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:31:23,016 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 34 transitions. [2019-12-28 04:31:23,016 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:31:23,017 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:31:23,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:31:23,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:31:23,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:31:23,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:31:23,021 INFO L87 Difference]: Start difference. First operand 151 states and 325 transitions. Second operand 5 states. [2019-12-28 04:31:23,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:31:23,089 INFO L93 Difference]: Finished difference Result 124 states and 241 transitions. [2019-12-28 04:31:23,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:31:23,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-28 04:31:23,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:31:23,094 INFO L225 Difference]: With dead ends: 124 [2019-12-28 04:31:23,094 INFO L226 Difference]: Without dead ends: 109 [2019-12-28 04:31:23,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:31:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-28 04:31:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-28 04:31:23,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-28 04:31:23,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 213 transitions. [2019-12-28 04:31:23,109 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 213 transitions. Word has length 26 [2019-12-28 04:31:23,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:31:23,110 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 213 transitions. [2019-12-28 04:31:23,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:31:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 213 transitions. [2019-12-28 04:31:23,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-28 04:31:23,111 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:31:23,111 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:31:23,112 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:31:23,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:31:23,112 INFO L82 PathProgramCache]: Analyzing trace with hash -656984878, now seen corresponding path program 1 times [2019-12-28 04:31:23,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:31:23,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847421965] [2019-12-28 04:31:23,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:31:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:31:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:31:23,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847421965] [2019-12-28 04:31:23,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:31:23,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:31:23,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1009419582] [2019-12-28 04:31:23,239 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:31:23,242 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:31:23,245 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 35 transitions. [2019-12-28 04:31:23,245 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:31:23,245 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:31:23,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:31:23,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:31:23,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:31:23,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:31:23,247 INFO L87 Difference]: Start difference. First operand 109 states and 213 transitions. Second operand 6 states. [2019-12-28 04:31:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:31:23,330 INFO L93 Difference]: Finished difference Result 163 states and 330 transitions. [2019-12-28 04:31:23,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:31:23,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-12-28 04:31:23,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:31:23,332 INFO L225 Difference]: With dead ends: 163 [2019-12-28 04:31:23,332 INFO L226 Difference]: Without dead ends: 94 [2019-12-28 04:31:23,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:31:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-12-28 04:31:23,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-12-28 04:31:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-12-28 04:31:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 183 transitions. [2019-12-28 04:31:23,340 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 183 transitions. Word has length 27 [2019-12-28 04:31:23,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:31:23,341 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 183 transitions. [2019-12-28 04:31:23,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:31:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 183 transitions. [2019-12-28 04:31:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-28 04:31:23,342 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:31:23,343 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:31:23,343 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:31:23,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:31:23,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1191109170, now seen corresponding path program 2 times [2019-12-28 04:31:23,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:31:23,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211597376] [2019-12-28 04:31:23,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:31:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:31:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:31:23,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211597376] [2019-12-28 04:31:23,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:31:23,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:31:23,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2047227417] [2019-12-28 04:31:23,535 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:31:23,538 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:31:23,540 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 28 states and 27 transitions. [2019-12-28 04:31:23,540 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:31:23,541 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:31:23,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:31:23,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:31:23,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:31:23,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:31:23,544 INFO L87 Difference]: Start difference. First operand 94 states and 183 transitions. Second operand 8 states. [2019-12-28 04:31:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:31:23,639 INFO L93 Difference]: Finished difference Result 76 states and 141 transitions. [2019-12-28 04:31:23,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:31:23,640 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-28 04:31:23,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:31:23,640 INFO L225 Difference]: With dead ends: 76 [2019-12-28 04:31:23,640 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:31:23,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:31:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:31:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:31:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:31:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:31:23,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-12-28 04:31:23,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:31:23,642 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:31:23,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:31:23,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:31:23,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:31:23,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:31:23 BasicIcfg [2019-12-28 04:31:23,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:31:23,650 INFO L168 Benchmark]: Toolchain (without parser) took 2808.63 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 101.2 MB in the beginning and 128.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,651 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.51 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 161.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.23 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,654 INFO L168 Benchmark]: Boogie Preprocessor took 24.65 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,654 INFO L168 Benchmark]: RCFGBuilder took 438.99 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 138.9 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,655 INFO L168 Benchmark]: TraceAbstraction took 1572.35 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 138.9 MB in the beginning and 128.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2019-12-28 04:31:23,660 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.51 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 161.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.23 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.65 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.99 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 138.9 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1572.35 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 138.9 MB in the beginning and 128.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 3 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 144 SDtfs, 137 SDslu, 343 SDs, 0 SdLazy, 54 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=286occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...