/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/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:43:10,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:43:10,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:43:10,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:43:10,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:43:10,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:43:10,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:43:10,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:43:10,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:43:10,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:43:10,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:43:10,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:43:10,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:43:10,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:43:10,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:43:10,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:43:10,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:43:10,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:43:10,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:43:10,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:43:10,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:43:10,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:43:10,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:43:10,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:43:10,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 00:43:10,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:43:10,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:43:10,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:43:10,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:43:10,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:43:10,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:43:10,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:43:10,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:43:10,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:43:10,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:43:10,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:43:10,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-22 00:43:10,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:43:10,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:43:10,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:43:10,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:43:10,457 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:43:10,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:43:10,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:43:10,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:43:10,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:43:10,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:43:10,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:43:10,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:43:10,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:43:10,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:43:10,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:43:10,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:43:10,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:43:10,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:43:10,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:43:10,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:43:10,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:43:10,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:43:10,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:43:10,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:43:10,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:43:10,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:43:10,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:43:10,464 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:43:10,464 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:43:10,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:43:10,464 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:43:10,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:43:10,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:43:10,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:43:10,833 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:43:10,833 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:43:10,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2020-10-22 00:43:10,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84695273b/c2e22180dc5e4125a401cb6bfbd7ed40/FLAGb4d0e3a39 [2020-10-22 00:43:11,503 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:43:11,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2020-10-22 00:43:11,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84695273b/c2e22180dc5e4125a401cb6bfbd7ed40/FLAGb4d0e3a39 [2020-10-22 00:43:11,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84695273b/c2e22180dc5e4125a401cb6bfbd7ed40 [2020-10-22 00:43:11,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:43:11,881 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:43:11,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:11,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:43:11,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:43:11,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:11" (1/1) ... [2020-10-22 00:43:11,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf4edeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:11, skipping insertion in model container [2020-10-22 00:43:11,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:11" (1/1) ... [2020-10-22 00:43:11,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:43:11,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:43:12,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:12,456 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:43:12,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:12,605 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:43:12,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12 WrapperNode [2020-10-22 00:43:12,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:12,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:12,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:43:12,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:43:12,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:12,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:43:12,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:43:12,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:43:12,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (1/1) ... [2020-10-22 00:43:12,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:43:12,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:43:12,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:43:12,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:43:12,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (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 [2020-10-22 00:43:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:43:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:43:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:43:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:43:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:43:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:43:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:43:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:43:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:43:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:43:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:43:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:43:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:43:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:43:12,756 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 00:43:13,140 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:43:13,140 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:43:13,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:13 BoogieIcfgContainer [2020-10-22 00:43:13,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:43:13,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:43:13,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:43:13,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:43:13,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:43:11" (1/3) ... [2020-10-22 00:43:13,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2125eba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:13, skipping insertion in model container [2020-10-22 00:43:13,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:12" (2/3) ... [2020-10-22 00:43:13,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2125eba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:13, skipping insertion in model container [2020-10-22 00:43:13,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:13" (3/3) ... [2020-10-22 00:43:13,153 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2020-10-22 00:43:13,165 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:43:13,165 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:43:13,174 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:43:13,175 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:43:13,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,205 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,206 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,206 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,206 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,207 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,208 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,209 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,209 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,210 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,214 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,215 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,227 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,233 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,233 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:13,238 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:43:13,253 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:43:13,275 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:43:13,275 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:43:13,275 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:43:13,275 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:43:13,276 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:43:13,276 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:43:13,276 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:43:13,276 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:43:13,291 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:43:13,292 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:13,295 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:13,297 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:13,348 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 00:43:13,348 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:43:13,354 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 00:43:13,357 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:43:14,981 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-22 00:43:15,272 INFO L131 LiptonReduction]: Checked pairs total: 2778 [2020-10-22 00:43:15,273 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-10-22 00:43:15,281 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 00:43:15,309 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 00:43:15,312 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 00:43:15,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:43:15,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:15,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:15,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:15,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:15,327 INFO L82 PathProgramCache]: Analyzing trace with hash -345538935, now seen corresponding path program 1 times [2020-10-22 00:43:15,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:15,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748175435] [2020-10-22 00:43:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:15,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748175435] [2020-10-22 00:43:15,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:15,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:15,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1624614529] [2020-10-22 00:43:15,558 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:15,561 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:15,576 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:43:15,576 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:15,580 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:15,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:43:15,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:15,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:43:15,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:43:15,597 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 00:43:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:15,622 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 00:43:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:43:15,623 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 00:43:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:15,647 INFO L225 Difference]: With dead ends: 362 [2020-10-22 00:43:15,647 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 00:43:15,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:43:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 00:43:15,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 00:43:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 00:43:15,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 00:43:15,726 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 00:43:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:15,727 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 00:43:15,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:43:15,727 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 00:43:15,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:43:15,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:15,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:15,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:43:15,730 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:15,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:15,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2121797576, now seen corresponding path program 1 times [2020-10-22 00:43:15,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:15,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055759026] [2020-10-22 00:43:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:15,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055759026] [2020-10-22 00:43:15,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:15,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:15,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [557088991] [2020-10-22 00:43:15,917 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:15,918 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:15,923 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 00:43:15,923 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:15,923 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:15,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:43:15,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:15,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:43:15,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:43:15,927 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 00:43:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:15,958 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-10-22 00:43:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:15,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 00:43:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:15,962 INFO L225 Difference]: With dead ends: 298 [2020-10-22 00:43:15,962 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 00:43:15,963 INFO L677 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 [2020-10-22 00:43:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 00:43:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 00:43:15,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 00:43:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-10-22 00:43:15,984 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-10-22 00:43:15,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:15,985 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-10-22 00:43:15,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:43:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-10-22 00:43:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:43:15,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:15,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:15,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:43:15,988 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:15,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:15,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1060758680, now seen corresponding path program 1 times [2020-10-22 00:43:15,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:15,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934614083] [2020-10-22 00:43:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:16,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934614083] [2020-10-22 00:43:16,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:16,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:16,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1884644808] [2020-10-22 00:43:16,090 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:16,091 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:16,093 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2020-10-22 00:43:16,093 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:16,124 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:16,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:43:16,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:43:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:43:16,126 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 4 states. [2020-10-22 00:43:16,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:16,169 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-10-22 00:43:16,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:16,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 00:43:16,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:16,172 INFO L225 Difference]: With dead ends: 346 [2020-10-22 00:43:16,172 INFO L226 Difference]: Without dead ends: 164 [2020-10-22 00:43:16,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-22 00:43:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-22 00:43:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-22 00:43:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-10-22 00:43:16,185 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-10-22 00:43:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:16,185 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-10-22 00:43:16,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:43:16,186 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-10-22 00:43:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:43:16,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:16,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:16,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:43:16,188 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:16,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:16,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1476250237, now seen corresponding path program 1 times [2020-10-22 00:43:16,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:16,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49933501] [2020-10-22 00:43:16,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:16,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49933501] [2020-10-22 00:43:16,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:16,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:16,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1773134997] [2020-10-22 00:43:16,257 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:16,258 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:16,261 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-22 00:43:16,261 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:16,327 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:43:16,401 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:43:16,408 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3229#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 00:43:16,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:16,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:16,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:16,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:16,410 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand 5 states. [2020-10-22 00:43:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:16,482 INFO L93 Difference]: Finished difference Result 139 states and 326 transitions. [2020-10-22 00:43:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:16,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:43:16,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:16,484 INFO L225 Difference]: With dead ends: 139 [2020-10-22 00:43:16,484 INFO L226 Difference]: Without dead ends: 87 [2020-10-22 00:43:16,485 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 [2020-10-22 00:43:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-22 00:43:16,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-22 00:43:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-22 00:43:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-10-22 00:43:16,490 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 12 [2020-10-22 00:43:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:16,491 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-10-22 00:43:16,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:16,491 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-10-22 00:43:16,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:43:16,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:16,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:16,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:43:16,493 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:16,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:16,493 INFO L82 PathProgramCache]: Analyzing trace with hash 809328863, now seen corresponding path program 1 times [2020-10-22 00:43:16,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:16,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646861996] [2020-10-22 00:43:16,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:16,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646861996] [2020-10-22 00:43:16,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:16,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:43:16,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1189647229] [2020-10-22 00:43:16,572 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:16,574 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:16,577 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 37 transitions. [2020-10-22 00:43:16,578 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:16,600 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3553#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:43:16,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:43:16,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:16,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:43:16,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:16,601 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand 7 states. [2020-10-22 00:43:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:16,650 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-10-22 00:43:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:16,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 00:43:16,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:16,652 INFO L225 Difference]: With dead ends: 76 [2020-10-22 00:43:16,652 INFO L226 Difference]: Without dead ends: 67 [2020-10-22 00:43:16,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:43:16,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-22 00:43:16,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-22 00:43:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-22 00:43:16,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-10-22 00:43:16,656 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-10-22 00:43:16,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:16,656 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-10-22 00:43:16,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:43:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-10-22 00:43:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:43:16,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:16,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:16,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:43:16,658 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:16,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:16,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1097223765, now seen corresponding path program 1 times [2020-10-22 00:43:16,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:16,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794488196] [2020-10-22 00:43:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:16,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794488196] [2020-10-22 00:43:16,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:16,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:43:16,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [816626054] [2020-10-22 00:43:16,721 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:16,723 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:16,730 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 68 transitions. [2020-10-22 00:43:16,731 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:16,893 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:16,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:16,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:16,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:16,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:16,895 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand 5 states. [2020-10-22 00:43:16,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:16,927 INFO L93 Difference]: Finished difference Result 87 states and 167 transitions. [2020-10-22 00:43:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:16,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:43:16,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:16,928 INFO L225 Difference]: With dead ends: 87 [2020-10-22 00:43:16,929 INFO L226 Difference]: Without dead ends: 40 [2020-10-22 00:43:16,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-22 00:43:16,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-22 00:43:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-22 00:43:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-22 00:43:16,933 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-10-22 00:43:16,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:16,933 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-22 00:43:16,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:16,933 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-22 00:43:16,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:43:16,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:16,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:16,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:43:16,935 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:16,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:16,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1731427213, now seen corresponding path program 2 times [2020-10-22 00:43:16,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:16,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139517054] [2020-10-22 00:43:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 00:43:16,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139517054] [2020-10-22 00:43:16,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:16,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:43:16,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1598916292] [2020-10-22 00:43:16,996 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:16,998 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:17,006 INFO L252 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-10-22 00:43:17,006 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:17,070 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:17,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:17,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:17,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:17,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:17,072 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-22 00:43:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:17,102 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-10-22 00:43:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:17,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:43:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:17,103 INFO L225 Difference]: With dead ends: 39 [2020-10-22 00:43:17,103 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:43:17,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:43:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:43:17,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:43:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:43:17,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:43:17,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:17,105 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:43:17,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:17,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:43:17,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:43:17,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:43:17,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:43:17 BasicIcfg [2020-10-22 00:43:17,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:43:17,111 INFO L168 Benchmark]: Toolchain (without parser) took 5235.75 ms. Allocated memory was 148.4 MB in the beginning and 281.0 MB in the end (delta: 132.6 MB). Free memory was 102.5 MB in the beginning and 204.9 MB in the end (delta: -102.5 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,112 INFO L168 Benchmark]: CDTParser took 3.35 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.79 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 101.6 MB in the beginning and 159.7 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.42 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,115 INFO L168 Benchmark]: Boogie Preprocessor took 27.45 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 156.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,115 INFO L168 Benchmark]: RCFGBuilder took 460.23 ms. Allocated memory is still 204.5 MB. Free memory was 156.0 MB in the beginning and 132.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,116 INFO L168 Benchmark]: TraceAbstraction took 3965.09 ms. Allocated memory was 204.5 MB in the beginning and 281.0 MB in the end (delta: 76.5 MB). Free memory was 132.0 MB in the beginning and 204.9 MB in the end (delta: -73.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:17,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.35 ms. Allocated memory is still 148.4 MB. Free memory was 123.1 MB in the beginning and 122.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.79 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 101.6 MB in the beginning and 159.7 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.42 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.45 ms. Allocated memory is still 204.5 MB. Free memory was 157.9 MB in the beginning and 156.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.23 ms. Allocated memory is still 204.5 MB. Free memory was 156.0 MB in the beginning and 132.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3965.09 ms. Allocated memory was 204.5 MB in the beginning and 281.0 MB in the end (delta: 76.5 MB). Free memory was 132.0 MB in the beginning and 204.9 MB in the end (delta: -73.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 777 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2778 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 158 SDtfs, 124 SDslu, 249 SDs, 0 SdLazy, 103 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3104 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...