/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/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:14:16,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:14:16,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:14:16,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:14:16,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:14:16,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:14:16,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:14:16,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:14:16,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:14:16,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:14:16,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:14:16,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:14:16,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:14:16,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:14:16,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:14:16,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:14:16,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:14:16,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:14:16,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:14:16,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:14:16,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:14:16,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:14:16,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:14:16,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:14:16,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:14:16,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:14:16,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:14:16,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:14:16,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:14:16,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:14:16,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:14:16,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:14:16,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:14:16,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:14:16,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:14:16,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:14:16,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:14:16,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:14:16,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:14:16,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:14:16,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:14:16,533 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 05:14:16,548 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:14:16,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:14:16,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:14:16,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:14:16,550 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:14:16,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:14:16,550 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:14:16,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:14:16,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:14:16,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:14:16,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:14:16,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:14:16,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:14:16,552 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:14:16,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:14:16,552 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:14:16,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:14:16,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:14:16,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:14:16,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:14:16,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:14:16,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:14:16,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:14:16,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:14:16,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:14:16,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:14:16,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:14:16,554 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:14:16,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:14:16,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:14:16,555 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:14:16,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:14:16,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:14:16,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:14:16,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:14:16,852 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:14:16,853 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:14:16,853 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2019-12-28 05:14:16,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227d36fb3/3794e08ffee74103a81f79b7e3d6544b/FLAGe7eb8ab2e [2019-12-28 05:14:17,463 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:14:17,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2019-12-28 05:14:17,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227d36fb3/3794e08ffee74103a81f79b7e3d6544b/FLAGe7eb8ab2e [2019-12-28 05:14:17,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227d36fb3/3794e08ffee74103a81f79b7e3d6544b [2019-12-28 05:14:17,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:14:17,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:14:17,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:14:17,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:14:17,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:14:17,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:14:17" (1/1) ... [2019-12-28 05:14:17,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a18d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:17, skipping insertion in model container [2019-12-28 05:14:17,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:14:17" (1/1) ... [2019-12-28 05:14:17,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:14:17,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:14:18,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:14:18,361 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:14:18,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:14:18,502 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:14:18,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18 WrapperNode [2019-12-28 05:14:18,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:14:18,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:14:18,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:14:18,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:14:18,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:14:18,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:14:18,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:14:18,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:14:18,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (1/1) ... [2019-12-28 05:14:18,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:14:18,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:14:18,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:14:18,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:14:18,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (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 05:14:18,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:14:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:14:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:14:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:14:18,646 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:14:18,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:14:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:14:18,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:14:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:14:18,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:14:18,647 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-28 05:14:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-28 05:14:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:14:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:14:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:14:18,650 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 05:14:19,078 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:14:19,079 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:14:19,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:14:19 BoogieIcfgContainer [2019-12-28 05:14:19,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:14:19,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:14:19,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:14:19,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:14:19,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:14:17" (1/3) ... [2019-12-28 05:14:19,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643480fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:14:19, skipping insertion in model container [2019-12-28 05:14:19,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:14:18" (2/3) ... [2019-12-28 05:14:19,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643480fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:14:19, skipping insertion in model container [2019-12-28 05:14:19,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:14:19" (3/3) ... [2019-12-28 05:14:19,090 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2019-12-28 05:14:19,100 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:14:19,101 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:14:19,109 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:14:19,110 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:14:19,142 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,142 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,142 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,143 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,143 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,144 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,144 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,144 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,145 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,145 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,145 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,145 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,146 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,146 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,146 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,147 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,147 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,147 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,148 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,148 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,148 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,148 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,149 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,149 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,153 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,154 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,154 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,154 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,160 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,160 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,161 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,161 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,164 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,165 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,165 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,165 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:14:19,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:14:19,206 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:14:19,206 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:14:19,206 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:14:19,206 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:14:19,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:14:19,207 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:14:19,207 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:14:19,207 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:14:19,219 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-28 05:14:19,529 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-28 05:14:19,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-28 05:14:19,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 05:14:19,567 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:19,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:19,569 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:19,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:19,577 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-28 05:14:19,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:19,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680421552] [2019-12-28 05:14:19,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:19,976 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 05:14:19,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680421552] [2019-12-28 05:14:19,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:19,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:14:19,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2008969497] [2019-12-28 05:14:19,980 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:19,988 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:20,011 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 36 transitions. [2019-12-28 05:14:20,011 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:20,016 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:20,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:14:20,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:20,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:14:20,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:14:20,034 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-28 05:14:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:20,206 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-28 05:14:20,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:14:20,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-28 05:14:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:20,268 INFO L225 Difference]: With dead ends: 5710 [2019-12-28 05:14:20,268 INFO L226 Difference]: Without dead ends: 2394 [2019-12-28 05:14:20,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:14:20,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-28 05:14:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-28 05:14:20,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-28 05:14:20,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-28 05:14:20,490 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-28 05:14:20,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:20,491 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-28 05:14:20,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:14:20,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-28 05:14:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-28 05:14:20,498 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:20,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:20,499 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:20,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:20,503 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-28 05:14:20,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:20,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734993605] [2019-12-28 05:14:20,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:20,738 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 05:14:20,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734993605] [2019-12-28 05:14:20,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:20,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:14:20,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2084501413] [2019-12-28 05:14:20,739 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:20,745 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:20,754 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 50 states and 61 transitions. [2019-12-28 05:14:20,754 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:20,758 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:20,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:14:20,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:20,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:14:20,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:14:20,762 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-28 05:14:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:20,885 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-28 05:14:20,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:14:20,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-28 05:14:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:20,904 INFO L225 Difference]: With dead ends: 2565 [2019-12-28 05:14:20,904 INFO L226 Difference]: Without dead ends: 2310 [2019-12-28 05:14:20,905 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 05:14:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-28 05:14:20,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-28 05:14:20,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-28 05:14:20,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-28 05:14:20,999 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-28 05:14:21,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:21,000 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-28 05:14:21,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:14:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-28 05:14:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 05:14:21,007 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:21,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:21,007 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:21,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-28 05:14:21,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:21,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867804298] [2019-12-28 05:14:21,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:21,179 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 05:14:21,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867804298] [2019-12-28 05:14:21,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:21,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:14:21,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1043729845] [2019-12-28 05:14:21,180 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:21,187 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:21,196 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 59 states and 78 transitions. [2019-12-28 05:14:21,197 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:21,197 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:21,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:14:21,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:21,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:14:21,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:14:21,199 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-28 05:14:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:21,318 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-28 05:14:21,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:21,319 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-28 05:14:21,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:21,334 INFO L225 Difference]: With dead ends: 2175 [2019-12-28 05:14:21,334 INFO L226 Difference]: Without dead ends: 1932 [2019-12-28 05:14:21,335 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:14:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-28 05:14:21,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-28 05:14:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-28 05:14:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-28 05:14:21,460 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-28 05:14:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:21,462 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-28 05:14:21,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:14:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-28 05:14:21,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-28 05:14:21,472 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:21,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:21,473 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:21,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:21,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-28 05:14:21,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:21,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970235815] [2019-12-28 05:14:21,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:21,595 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 05:14:21,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970235815] [2019-12-28 05:14:21,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:21,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:21,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1965241980] [2019-12-28 05:14:21,598 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:21,602 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:21,616 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 64 states and 87 transitions. [2019-12-28 05:14:21,617 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:21,617 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:21,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:21,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:21,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:21,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:21,618 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-28 05:14:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:21,757 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-28 05:14:21,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:14:21,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-28 05:14:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:21,766 INFO L225 Difference]: With dead ends: 1365 [2019-12-28 05:14:21,767 INFO L226 Difference]: Without dead ends: 1176 [2019-12-28 05:14:21,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-28 05:14:21,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-28 05:14:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-28 05:14:21,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-28 05:14:21,806 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-28 05:14:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:21,809 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-28 05:14:21,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-28 05:14:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:21,812 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:21,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:21,813 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:21,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:21,818 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-28 05:14:21,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:21,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917442033] [2019-12-28 05:14:21,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:22,036 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 05:14:22,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917442033] [2019-12-28 05:14:22,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:22,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:14:22,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1406119407] [2019-12-28 05:14:22,038 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:22,044 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:22,061 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 65 states and 88 transitions. [2019-12-28 05:14:22,061 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:22,063 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:22,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:14:22,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:22,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:14:22,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:14:22,065 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-28 05:14:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:22,226 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-28 05:14:22,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:22,227 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-28 05:14:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:22,275 INFO L225 Difference]: With dead ends: 1725 [2019-12-28 05:14:22,275 INFO L226 Difference]: Without dead ends: 876 [2019-12-28 05:14:22,276 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 05:14:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-28 05:14:22,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-28 05:14:22,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-28 05:14:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-28 05:14:22,318 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-28 05:14:22,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:22,318 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-28 05:14:22,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:14:22,318 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-28 05:14:22,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:22,321 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:22,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:22,322 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:22,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-28 05:14:22,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:22,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711391315] [2019-12-28 05:14:22,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:14:22,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711391315] [2019-12-28 05:14:22,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:22,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:22,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [977883778] [2019-12-28 05:14:22,495 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:22,501 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:22,510 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 53 states and 64 transitions. [2019-12-28 05:14:22,511 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:22,511 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:22,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:22,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:22,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:22,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:22,512 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-28 05:14:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:22,635 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-28 05:14:22,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:22,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:22,641 INFO L225 Difference]: With dead ends: 1389 [2019-12-28 05:14:22,641 INFO L226 Difference]: Without dead ends: 768 [2019-12-28 05:14:22,642 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-28 05:14:22,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-28 05:14:22,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-28 05:14:22,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-28 05:14:22,667 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-28 05:14:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:22,669 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-28 05:14:22,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-28 05:14:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:22,673 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:22,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:22,673 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:22,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:22,674 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-28 05:14:22,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:22,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769810963] [2019-12-28 05:14:22,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:22,833 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 05:14:22,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769810963] [2019-12-28 05:14:22,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:22,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:22,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1663068400] [2019-12-28 05:14:22,834 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:22,839 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:22,847 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 45 states and 48 transitions. [2019-12-28 05:14:22,847 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:22,849 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:22,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:22,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:22,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:22,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:22,851 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-28 05:14:22,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:22,971 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-28 05:14:22,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:14:22,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:22,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:22,977 INFO L225 Difference]: With dead ends: 1254 [2019-12-28 05:14:22,977 INFO L226 Difference]: Without dead ends: 717 [2019-12-28 05:14:22,978 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-28 05:14:22,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-28 05:14:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-28 05:14:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-28 05:14:23,000 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-28 05:14:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:23,001 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-28 05:14:23,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:23,001 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-28 05:14:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-28 05:14:23,003 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:14:23,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:14:23,003 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:14:23,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:14:23,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-28 05:14:23,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:14:23,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780147676] [2019-12-28 05:14:23,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:14:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:14:23,133 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 05:14:23,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780147676] [2019-12-28 05:14:23,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:14:23,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:14:23,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [94049025] [2019-12-28 05:14:23,135 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:14:23,140 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:14:23,147 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 40 transitions. [2019-12-28 05:14:23,147 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:14:23,148 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:14:23,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:14:23,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:14:23,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:14:23,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:14:23,150 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-28 05:14:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:14:23,299 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-28 05:14:23,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:14:23,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-28 05:14:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:14:23,300 INFO L225 Difference]: With dead ends: 555 [2019-12-28 05:14:23,301 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:14:23,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:14:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:14:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:14:23,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:14:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:14:23,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-28 05:14:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:14:23,303 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:14:23,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:14:23,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:14:23,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:14:23,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:14:23 BasicIcfg [2019-12-28 05:14:23,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:14:23,331 INFO L168 Benchmark]: Toolchain (without parser) took 5546.65 ms. Allocated memory was 144.7 MB in the beginning and 327.2 MB in the end (delta: 182.5 MB). Free memory was 100.7 MB in the beginning and 95.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 187.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:23,334 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 05:14:23,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.92 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 156.1 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:23,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.55 ms. Allocated memory is still 201.9 MB. Free memory was 156.1 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:23,342 INFO L168 Benchmark]: Boogie Preprocessor took 26.72 ms. Allocated memory is still 201.9 MB. Free memory was 154.1 MB in the beginning and 153.1 MB in the end (delta: 999.0 kB). Peak memory consumption was 999.0 kB. Max. memory is 7.1 GB. [2019-12-28 05:14:23,343 INFO L168 Benchmark]: RCFGBuilder took 494.33 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 130.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:23,344 INFO L168 Benchmark]: TraceAbstraction took 4240.46 ms. Allocated memory was 201.9 MB in the beginning and 327.2 MB in the end (delta: 125.3 MB). Free memory was 129.6 MB in the beginning and 95.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 159.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:14:23,352 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.92 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 156.1 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.55 ms. Allocated memory is still 201.9 MB. Free memory was 156.1 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.72 ms. Allocated memory is still 201.9 MB. Free memory was 154.1 MB in the beginning and 153.1 MB in the end (delta: 999.0 kB). Peak memory consumption was 999.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 494.33 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 130.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4240.46 ms. Allocated memory was 201.9 MB in the beginning and 327.2 MB in the end (delta: 125.3 MB). Free memory was 129.6 MB in the beginning and 95.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 159.4 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 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 637 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...