/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:11:34,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:11:34,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:11:34,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:11:34,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:11:34,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:11:34,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:11:34,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:11:34,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:11:34,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:11:34,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:11:34,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:11:34,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:11:34,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:11:34,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:11:34,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:11:34,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:11:34,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:11:34,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:11:34,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:11:34,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:11:34,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:11:34,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:11:34,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:11:34,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 15:11:34,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:11:34,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:11:34,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:11:34,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:11:34,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:11:34,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:11:34,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:11:34,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:11:34,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:11:34,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:11:34,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:11:34,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-11 15:11:34,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:11:34,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:11:34,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:11:34,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:11:34,499 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:11:34,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:11:34,499 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:11:34,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:11:34,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:11:34,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:11:34,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:11:34,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:11:34,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:11:34,501 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:11:34,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:11:34,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:11:34,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:11:34,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:11:34,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:11:34,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:11:34,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:11:34,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:34,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:11:34,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:11:34,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:11:34,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:11:34,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:11:34,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:11:34,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:11:34,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:11:34,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:11:34,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:11:34,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:11:34,826 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:11:34,826 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:11:34,827 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2020-10-11 15:11:34,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd5807e1/75014152222a4c2693c5cc00c8606d22/FLAG8ee02d878 [2020-10-11 15:11:35,357 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:11:35,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2020-10-11 15:11:35,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd5807e1/75014152222a4c2693c5cc00c8606d22/FLAG8ee02d878 [2020-10-11 15:11:35,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd5807e1/75014152222a4c2693c5cc00c8606d22 [2020-10-11 15:11:35,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:11:35,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:11:35,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:35,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:11:35,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:11:35,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:35" (1/1) ... [2020-10-11 15:11:35,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416d0f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:35, skipping insertion in model container [2020-10-11 15:11:35,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:35" (1/1) ... [2020-10-11 15:11:35,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:11:35,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:11:36,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:36,235 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:11:36,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:36,409 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:11:36,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36 WrapperNode [2020-10-11 15:11:36,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:36,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:36,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:11:36,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:11:36,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:36,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:11:36,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:11:36,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:11:36,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... [2020-10-11 15:11:36,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:11:36,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:11:36,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:11:36,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:11:36,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:11:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:11:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:11:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:11:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:11:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:11:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:11:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:11:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:11:36,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:11:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:11:36,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:11:36,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:11:36,622 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:11:37,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:11:37,124 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:11:37,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:37 BoogieIcfgContainer [2020-10-11 15:11:37,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:11:37,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:11:37,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:11:37,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:11:37,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:11:35" (1/3) ... [2020-10-11 15:11:37,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1fae1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:37, skipping insertion in model container [2020-10-11 15:11:37,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:36" (2/3) ... [2020-10-11 15:11:37,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1fae1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:37, skipping insertion in model container [2020-10-11 15:11:37,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:37" (3/3) ... [2020-10-11 15:11:37,145 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2020-10-11 15:11:37,157 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:11:37,157 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:11:37,165 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:11:37,166 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:11:37,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,193 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,193 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,194 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,194 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,195 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,197 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,197 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,198 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,208 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,210 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,211 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,211 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:37,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:11:37,245 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:11:37,245 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:11:37,246 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:11:37,246 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:11:37,246 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:11:37,246 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:11:37,246 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:11:37,246 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:11:37,257 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:11:37,260 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:37,263 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:37,265 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:37,305 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:11:37,306 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:11:37,311 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:11:37,314 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:11:39,130 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-11 15:11:39,130 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-11 15:11:39,138 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-11 15:11:39,169 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:11:39,171 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:11:39,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:11:39,180 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:39,181 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:39,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:39,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-11 15:11:39,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:39,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936348938] [2020-10-11 15:11:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:39,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936348938] [2020-10-11 15:11:39,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:39,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:11:39,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493374421] [2020-10-11 15:11:39,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:39,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:39,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:39,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:39,485 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:11:39,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:39,542 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-10-11 15:11:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:39,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:11:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:39,561 INFO L225 Difference]: With dead ends: 294 [2020-10-11 15:11:39,561 INFO L226 Difference]: Without dead ends: 230 [2020-10-11 15:11:39,563 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-11 15:11:39,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-10-11 15:11:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-11 15:11:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-10-11 15:11:39,635 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-10-11 15:11:39,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:39,637 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-10-11 15:11:39,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-10-11 15:11:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:11:39,639 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:39,639 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:39,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:11:39,639 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:39,640 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times [2020-10-11 15:11:39,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:39,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053647946] [2020-10-11 15:11:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:39,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053647946] [2020-10-11 15:11:39,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:39,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:11:39,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905792545] [2020-10-11 15:11:39,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:39,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:39,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:39,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:39,721 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-10-11 15:11:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:39,737 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-11 15:11:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:39,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-11 15:11:39,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:39,745 INFO L225 Difference]: With dead ends: 202 [2020-10-11 15:11:39,746 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:11:39,746 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:11:39,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:11:39,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:11:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-11 15:11:39,772 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-11 15:11:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:39,772 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-11 15:11:39,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-11 15:11:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:11:39,774 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:39,774 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:39,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:11:39,775 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:39,775 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-11 15:11:39,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:39,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136343338] [2020-10-11 15:11:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:39,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136343338] [2020-10-11 15:11:39,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:39,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:39,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825859288] [2020-10-11 15:11:39,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:39,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:39,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:39,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:39,874 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-11 15:11:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:39,890 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-11 15:11:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:39,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 15:11:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:39,893 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:39,893 INFO L226 Difference]: Without dead ends: 140 [2020-10-11 15:11:39,893 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:39,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-11 15:11:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-11 15:11:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-11 15:11:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-11 15:11:39,905 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-11 15:11:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:39,906 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-11 15:11:39,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-11 15:11:39,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:11:39,907 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:39,907 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:39,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:11:39,908 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:39,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:39,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-11 15:11:39,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:39,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589797949] [2020-10-11 15:11:39,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:39,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589797949] [2020-10-11 15:11:39,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:39,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:39,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939941672] [2020-10-11 15:11:39,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:39,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:39,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:39,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:39,987 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-11 15:11:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,028 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-11 15:11:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:40,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:11:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,030 INFO L225 Difference]: With dead ends: 165 [2020-10-11 15:11:40,030 INFO L226 Difference]: Without dead ends: 113 [2020-10-11 15:11:40,031 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-11 15:11:40,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-11 15:11:40,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-11 15:11:40,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-11 15:11:40,038 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-11 15:11:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,039 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-11 15:11:40,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-11 15:11:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:11:40,040 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,040 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:11:40,041 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,041 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-11 15:11:40,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355302769] [2020-10-11 15:11:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355302769] [2020-10-11 15:11:40,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573045704] [2020-10-11 15:11:40,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:11:40,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:11:40,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,111 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-11 15:11:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,161 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-11 15:11:40,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:11:40,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 15:11:40,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,163 INFO L225 Difference]: With dead ends: 111 [2020-10-11 15:11:40,164 INFO L226 Difference]: Without dead ends: 80 [2020-10-11 15:11:40,164 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-11 15:11:40,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-11 15:11:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-11 15:11:40,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-11 15:11:40,169 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-11 15:11:40,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,169 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-11 15:11:40,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:11:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-11 15:11:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:11:40,171 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,171 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:11:40,171 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-11 15:11:40,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323116661] [2020-10-11 15:11:40,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323116661] [2020-10-11 15:11:40,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:11:40,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804858345] [2020-10-11 15:11:40,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:11:40,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:11:40,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:40,234 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-11 15:11:40,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,311 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-11 15:11:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:11:40,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:11:40,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,312 INFO L225 Difference]: With dead ends: 75 [2020-10-11 15:11:40,312 INFO L226 Difference]: Without dead ends: 66 [2020-10-11 15:11:40,313 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:11:40,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-11 15:11:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-11 15:11:40,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-11 15:11:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-11 15:11:40,316 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-11 15:11:40,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,317 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-11 15:11:40,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:11:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-11 15:11:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:40,318 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,318 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:11:40,319 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,319 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-11 15:11:40,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544386806] [2020-10-11 15:11:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544386806] [2020-10-11 15:11:40,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354128134] [2020-10-11 15:11:40,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:40,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:40,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:40,358 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-11 15:11:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,379 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-11 15:11:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:40,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,381 INFO L225 Difference]: With dead ends: 85 [2020-10-11 15:11:40,381 INFO L226 Difference]: Without dead ends: 48 [2020-10-11 15:11:40,381 INFO L673 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 [2020-10-11 15:11:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-11 15:11:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-11 15:11:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-11 15:11:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-11 15:11:40,384 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-11 15:11:40,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,384 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-11 15:11:40,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,385 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-11 15:11:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:40,385 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,386 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:11:40,386 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-11 15:11:40,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632111514] [2020-10-11 15:11:40,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632111514] [2020-10-11 15:11:40,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689180048] [2020-10-11 15:11:40,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:40,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:40,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:40,426 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-11 15:11:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,445 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-11 15:11:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:40,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,446 INFO L225 Difference]: With dead ends: 73 [2020-10-11 15:11:40,446 INFO L226 Difference]: Without dead ends: 42 [2020-10-11 15:11:40,446 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-11 15:11:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-11 15:11:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-11 15:11:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-11 15:11:40,449 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-11 15:11:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,449 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-11 15:11:40,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-11 15:11:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:40,450 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:40,450 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:40,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:11:40,451 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:40,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:40,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-11 15:11:40,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:40,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394266729] [2020-10-11 15:11:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:40,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394266729] [2020-10-11 15:11:40,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:40,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:40,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508364550] [2020-10-11 15:11:40,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:40,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:40,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:40,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:40,487 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-11 15:11:40,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:40,500 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-11 15:11:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:40,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:40,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:40,501 INFO L225 Difference]: With dead ends: 41 [2020-10-11 15:11:40,501 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:11:40,501 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:11:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:11:40,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:11:40,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:11:40,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:11:40,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:40,503 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:11:40,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:40,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:11:40,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:11:40,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 15:11:40,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:11:40 BasicIcfg [2020-10-11 15:11:40,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:11:40,510 INFO L168 Benchmark]: Toolchain (without parser) took 4780.50 ms. Allocated memory was 251.1 MB in the beginning and 370.7 MB in the end (delta: 119.5 MB). Free memory was 206.4 MB in the beginning and 234.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 91.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:40,510 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:40,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.80 ms. Allocated memory was 251.1 MB in the beginning and 312.0 MB in the end (delta: 60.8 MB). Free memory was 206.4 MB in the beginning and 265.2 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:40,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.67 ms. Allocated memory is still 312.0 MB. Free memory was 265.2 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:40,513 INFO L168 Benchmark]: Boogie Preprocessor took 46.69 ms. Allocated memory is still 312.0 MB. Free memory was 262.6 MB in the beginning and 260.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:40,514 INFO L168 Benchmark]: RCFGBuilder took 586.93 ms. Allocated memory is still 312.0 MB. Free memory was 260.1 MB in the beginning and 238.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:40,514 INFO L168 Benchmark]: TraceAbstraction took 3375.97 ms. Allocated memory was 312.0 MB in the beginning and 370.7 MB in the end (delta: 58.7 MB). Free memory was 238.3 MB in the beginning and 234.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:40,519 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 681.80 ms. Allocated memory was 251.1 MB in the beginning and 312.0 MB in the end (delta: 60.8 MB). Free memory was 206.4 MB in the beginning and 265.2 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 83.67 ms. Allocated memory is still 312.0 MB. Free memory was 265.2 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 46.69 ms. Allocated memory is still 312.0 MB. Free memory was 262.6 MB in the beginning and 260.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 586.93 ms. Allocated memory is still 312.0 MB. Free memory was 260.1 MB in the beginning and 238.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3375.97 ms. Allocated memory was 312.0 MB in the beginning and 370.7 MB in the end (delta: 58.7 MB). Free memory was 238.3 MB in the beginning and 234.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 172 SDtfs, 128 SDslu, 202 SDs, 0 SdLazy, 120 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...