/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:45:15,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:45:15,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:45:15,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:45:15,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:45:15,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:45:15,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:45:15,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:45:15,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:45:15,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:45:15,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:45:15,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:45:15,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:45:15,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:45:15,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:45:15,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:45:15,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:45:15,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:45:15,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:45:15,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:45:15,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:45:15,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:45:15,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:45:15,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:45:15,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:45:15,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:45:15,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:45:15,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:45:15,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:45:15,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:45:15,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:45:15,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:45:15,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:45:15,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:45:15,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:45:15,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:45:15,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:45:15,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:45:15,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:45:15,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:45:15,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:45:15,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:45:15,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:45:15,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:45:15,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:45:15,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:45:15,563 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:45:15,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:45:15,563 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:45:15,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:45:15,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:45:15,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:45:15,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:45:15,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:45:15,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:45:15,565 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:45:15,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:45:15,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:45:15,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:45:15,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:45:15,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:45:15,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:45:15,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:45:15,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:45:15,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:45:15,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:45:15,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:45:15,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:45:15,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:45:15,567 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:45:15,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:45:15,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:45:15,568 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:45:15,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:45:15,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:45:15,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:45:15,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:45:15,875 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:45:15,877 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-10-16 13:45:15,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6367ed186/11af2bd3810048b2854d29098e2279f6/FLAG407eddb50 [2020-10-16 13:45:16,495 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:45:16,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-10-16 13:45:16,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6367ed186/11af2bd3810048b2854d29098e2279f6/FLAG407eddb50 [2020-10-16 13:45:16,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6367ed186/11af2bd3810048b2854d29098e2279f6 [2020-10-16 13:45:16,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:45:16,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:45:16,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:16,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:45:16,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:45:16,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:16" (1/1) ... [2020-10-16 13:45:16,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92f996a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:16, skipping insertion in model container [2020-10-16 13:45:16,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:16" (1/1) ... [2020-10-16 13:45:16,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:45:16,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:45:17,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:17,410 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:45:17,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:17,571 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:45:17,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17 WrapperNode [2020-10-16 13:45:17,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:17,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:17,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:45:17,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:45:17,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:17,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:45:17,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:45:17,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:45:17,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... [2020-10-16 13:45:17,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:45:17,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:45:17,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:45:17,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:45:17,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:45:17,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:45:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:45:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:45:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:45:17,722 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:45:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:45:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:45:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:45:17,723 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:45:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:45:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:45:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:45:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:45:17,725 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:45:18,113 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:45:18,113 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:45:18,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:18 BoogieIcfgContainer [2020-10-16 13:45:18,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:45:18,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:45:18,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:45:18,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:45:18,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:45:16" (1/3) ... [2020-10-16 13:45:18,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f581a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:18, skipping insertion in model container [2020-10-16 13:45:18,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:17" (2/3) ... [2020-10-16 13:45:18,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f581a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:18, skipping insertion in model container [2020-10-16 13:45:18,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:18" (3/3) ... [2020-10-16 13:45:18,126 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-10-16 13:45:18,139 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:45:18,140 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:45:18,148 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:45:18,149 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:45:18,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,195 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,202 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:18,206 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:45:18,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:45:18,245 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:45:18,245 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:45:18,245 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:45:18,246 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:45:18,246 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:45:18,246 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:45:18,246 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:45:18,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:45:18,262 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:45:18,263 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 13:45:18,265 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-16 13:45:18,267 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 13:45:18,308 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 13:45:18,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:45:18,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 13:45:18,318 INFO L117 LiptonReduction]: Number of co-enabled transitions 1178 [2020-10-16 13:45:19,554 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-16 13:45:19,663 INFO L132 LiptonReduction]: Checked pairs total: 2269 [2020-10-16 13:45:19,664 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-16 13:45:19,671 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-16 13:45:19,706 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-10-16 13:45:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-10-16 13:45:19,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:45:19,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:19,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:19,719 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:19,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-10-16 13:45:19,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:19,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135232645] [2020-10-16 13:45:19,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:19,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:19,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135232645] [2020-10-16 13:45:19,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:19,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:45:19,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1925310767] [2020-10-16 13:45:19,969 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:19,972 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:19,988 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:45:19,989 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:19,993 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:19,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:45:19,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:20,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:45:20,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:20,008 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-10-16 13:45:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:20,055 INFO L93 Difference]: Finished difference Result 218 states and 604 transitions. [2020-10-16 13:45:20,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:45:20,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:45:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:20,072 INFO L225 Difference]: With dead ends: 218 [2020-10-16 13:45:20,073 INFO L226 Difference]: Without dead ends: 170 [2020-10-16 13:45:20,074 INFO L677 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 [2020-10-16 13:45:20,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-16 13:45:20,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-16 13:45:20,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-16 13:45:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 452 transitions. [2020-10-16 13:45:20,143 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 452 transitions. Word has length 8 [2020-10-16 13:45:20,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:20,144 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 452 transitions. [2020-10-16 13:45:20,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:45:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 452 transitions. [2020-10-16 13:45:20,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:45:20,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:20,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:20,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:45:20,147 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:20,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:20,148 INFO L82 PathProgramCache]: Analyzing trace with hash 658729482, now seen corresponding path program 1 times [2020-10-16 13:45:20,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:20,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232056373] [2020-10-16 13:45:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:20,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232056373] [2020-10-16 13:45:20,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:20,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:45:20,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1551905003] [2020-10-16 13:45:20,285 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:20,286 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:20,289 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-16 13:45:20,289 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:20,320 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:20,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:45:20,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:20,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:45:20,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:20,322 INFO L87 Difference]: Start difference. First operand 170 states and 452 transitions. Second operand 3 states. [2020-10-16 13:45:20,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:20,332 INFO L93 Difference]: Finished difference Result 160 states and 419 transitions. [2020-10-16 13:45:20,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:45:20,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:45:20,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:20,335 INFO L225 Difference]: With dead ends: 160 [2020-10-16 13:45:20,335 INFO L226 Difference]: Without dead ends: 160 [2020-10-16 13:45:20,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-16 13:45:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-16 13:45:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-16 13:45:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 419 transitions. [2020-10-16 13:45:20,358 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 419 transitions. Word has length 9 [2020-10-16 13:45:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:20,359 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 419 transitions. [2020-10-16 13:45:20,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:45:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 419 transitions. [2020-10-16 13:45:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:45:20,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:20,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:20,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:45:20,361 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:20,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1054810361, now seen corresponding path program 1 times [2020-10-16 13:45:20,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:20,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104386234] [2020-10-16 13:45:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:20,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104386234] [2020-10-16 13:45:20,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:20,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:20,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1168283340] [2020-10-16 13:45:20,421 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:20,423 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:20,425 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-10-16 13:45:20,425 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:20,434 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:20,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:20,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:20,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:20,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:20,436 INFO L87 Difference]: Start difference. First operand 160 states and 419 transitions. Second operand 4 states. [2020-10-16 13:45:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:20,462 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-10-16 13:45:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:45:20,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 13:45:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:20,465 INFO L225 Difference]: With dead ends: 220 [2020-10-16 13:45:20,465 INFO L226 Difference]: Without dead ends: 148 [2020-10-16 13:45:20,466 INFO L677 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 [2020-10-16 13:45:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-16 13:45:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-10-16 13:45:20,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-16 13:45:20,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-10-16 13:45:20,482 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 10 [2020-10-16 13:45:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:20,482 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-10-16 13:45:20,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-10-16 13:45:20,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:45:20,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:20,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:20,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:45:20,485 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:20,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:20,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 2 times [2020-10-16 13:45:20,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:20,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855906930] [2020-10-16 13:45:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:20,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855906930] [2020-10-16 13:45:20,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:20,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:20,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [486337870] [2020-10-16 13:45:20,654 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:20,656 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:20,657 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-16 13:45:20,658 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:20,678 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:20,708 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:20,728 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2101#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:45:20,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:20,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:20,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:20,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:20,729 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 5 states. [2020-10-16 13:45:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:20,794 INFO L93 Difference]: Finished difference Result 135 states and 311 transitions. [2020-10-16 13:45:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:20,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 13:45:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:20,796 INFO L225 Difference]: With dead ends: 135 [2020-10-16 13:45:20,797 INFO L226 Difference]: Without dead ends: 93 [2020-10-16 13:45:20,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:20,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-16 13:45:20,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-16 13:45:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-16 13:45:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-10-16 13:45:20,805 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 10 [2020-10-16 13:45:20,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:20,805 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-10-16 13:45:20,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-10-16 13:45:20,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:45:20,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:20,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:20,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:45:20,807 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:20,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:20,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-10-16 13:45:20,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:20,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503288173] [2020-10-16 13:45:20,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:20,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503288173] [2020-10-16 13:45:20,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:20,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:20,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1915519361] [2020-10-16 13:45:20,887 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:20,888 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:20,890 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-10-16 13:45:20,891 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:20,937 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2433#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:45:20,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:45:20,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:20,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:45:20,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:20,938 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 7 states. [2020-10-16 13:45:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:20,994 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-10-16 13:45:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:20,995 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-16 13:45:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:20,996 INFO L225 Difference]: With dead ends: 87 [2020-10-16 13:45:20,996 INFO L226 Difference]: Without dead ends: 78 [2020-10-16 13:45:20,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-16 13:45:21,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-16 13:45:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-16 13:45:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-10-16 13:45:21,002 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-10-16 13:45:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:21,003 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-10-16 13:45:21,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:45:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-10-16 13:45:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:45:21,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:21,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:21,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:45:21,005 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:21,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:21,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-10-16 13:45:21,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:21,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651887620] [2020-10-16 13:45:21,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:21,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651887620] [2020-10-16 13:45:21,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:21,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:21,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [862925999] [2020-10-16 13:45:21,063 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:21,065 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:21,071 INFO L258 McrAutomatonBuilder]: Finished intersection with 41 states and 66 transitions. [2020-10-16 13:45:21,071 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:21,121 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:21,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:21,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:21,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:21,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:21,122 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-10-16 13:45:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:21,138 INFO L93 Difference]: Finished difference Result 91 states and 183 transitions. [2020-10-16 13:45:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:45:21,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-16 13:45:21,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:21,140 INFO L225 Difference]: With dead ends: 91 [2020-10-16 13:45:21,140 INFO L226 Difference]: Without dead ends: 33 [2020-10-16 13:45:21,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-16 13:45:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-16 13:45:21,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-16 13:45:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-10-16 13:45:21,143 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-10-16 13:45:21,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:21,143 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-10-16 13:45:21,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:21,144 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-10-16 13:45:21,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 13:45:21,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:21,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:21,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:45:21,145 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:21,145 INFO L82 PathProgramCache]: Analyzing trace with hash -867586631, now seen corresponding path program 2 times [2020-10-16 13:45:21,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:21,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260291193] [2020-10-16 13:45:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:21,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260291193] [2020-10-16 13:45:21,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:21,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:21,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1173453427] [2020-10-16 13:45:21,180 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:21,183 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:21,187 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-10-16 13:45:21,188 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:21,191 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:21,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:45:21,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:21,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:45:21,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:21,193 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 3 states. [2020-10-16 13:45:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:21,199 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-10-16 13:45:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:45:21,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-16 13:45:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:21,200 INFO L225 Difference]: With dead ends: 32 [2020-10-16 13:45:21,200 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:45:21,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:45:21,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:45:21,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:45:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:45:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:45:21,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-16 13:45:21,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:21,202 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:45:21,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:45:21,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:45:21,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:45:21,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:45:21,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:45:21 BasicIcfg [2020-10-16 13:45:21,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:45:21,210 INFO L168 Benchmark]: Toolchain (without parser) took 4386.62 ms. Allocated memory was 141.0 MB in the beginning and 246.9 MB in the end (delta: 105.9 MB). Free memory was 102.4 MB in the beginning and 181.7 MB in the end (delta: -79.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:21,211 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:21,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.47 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 162.5 MB in the end (delta: -60.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:21,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.13 ms. Allocated memory is still 204.5 MB. Free memory was 162.5 MB in the beginning and 159.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:21,213 INFO L168 Benchmark]: Boogie Preprocessor took 28.22 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:21,214 INFO L168 Benchmark]: RCFGBuilder took 456.43 ms. Allocated memory is still 204.5 MB. Free memory was 158.7 MB in the beginning and 136.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:21,215 INFO L168 Benchmark]: TraceAbstraction took 3090.03 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 136.2 MB in the beginning and 181.7 MB in the end (delta: -45.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:21,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.47 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 162.5 MB in the end (delta: -60.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.13 ms. Allocated memory is still 204.5 MB. Free memory was 162.5 MB in the beginning and 159.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.22 ms. Allocated memory is still 204.5 MB. Free memory was 159.9 MB in the beginning and 158.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.43 ms. Allocated memory is still 204.5 MB. Free memory was 158.7 MB in the beginning and 136.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3090.03 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 136.2 MB in the beginning and 181.7 MB in the end (delta: -45.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 592 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 26 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 59 TotalNumberOfCompositions, 2269 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 125 SDtfs, 101 SDslu, 154 SDs, 0 SdLazy, 84 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2373 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...