/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/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:27:33,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:27:33,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:27:33,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:27:33,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:27:33,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:27:33,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:27:33,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:27:33,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:27:33,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:27:33,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:27:33,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:27:33,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:27:33,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:27:33,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:27:33,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:27:33,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:27:33,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:27:33,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:27:33,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:27:33,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:27:33,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:27:33,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:27:33,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:27:33,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-11 23:27:33,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:27:33,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:27:33,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:27:33,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:27:33,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:27:33,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:27:33,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:27:33,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:27:33,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:27:33,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:27:33,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:27:33,350 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 [2020-09-11 23:27:33,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:27:33,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:27:33,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:27:33,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:27:33,377 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:27:33,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:27:33,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:27:33,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:27:33,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:27:33,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:27:33,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:27:33,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:27:33,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:27:33,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:27:33,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:27:33,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:27:33,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:27:33,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:27:33,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:27:33,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:27:33,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:27:33,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:27:33,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:27:33,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:27:33,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:27:33,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:27:33,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:27:33,382 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:27:33,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:27:33,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:27:33,382 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:27:33,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:27:33,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:27:33,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:27:33,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:27:33,867 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:27:33,870 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-09-11 23:27:33,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58f98ae90/45a3f710727047d39f65777d2ff74bc8/FLAG650e18f7e [2020-09-11 23:27:34,585 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:27:34,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-09-11 23:27:34,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58f98ae90/45a3f710727047d39f65777d2ff74bc8/FLAG650e18f7e [2020-09-11 23:27:34,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58f98ae90/45a3f710727047d39f65777d2ff74bc8 [2020-09-11 23:27:34,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:27:34,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:27:34,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:27:34,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:27:34,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:27:34,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:27:34" (1/1) ... [2020-09-11 23:27:34,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d953c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:34, skipping insertion in model container [2020-09-11 23:27:34,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:27:34" (1/1) ... [2020-09-11 23:27:34,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:27:34,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:27:35,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:27:35,390 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:27:35,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:27:35,546 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:27:35,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35 WrapperNode [2020-09-11 23:27:35,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:27:35,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:27:35,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:27:35,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:27:35,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:27:35,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:27:35,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:27:35,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:27:35,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (1/1) ... [2020-09-11 23:27:35,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:27:35,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:27:35,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:27:35,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:27:35,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (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 [2020-09-11 23:27:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:27:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:27:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:27:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:27:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:27:35,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:27:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:27:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:27:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:27:35,766 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:27:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:27:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:27:35,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:27:35,770 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 23:27:36,155 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:27:36,155 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:27:36,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:27:36 BoogieIcfgContainer [2020-09-11 23:27:36,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:27:36,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:27:36,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:27:36,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:27:36,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:27:34" (1/3) ... [2020-09-11 23:27:36,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8d07fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:27:36, skipping insertion in model container [2020-09-11 23:27:36,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:27:35" (2/3) ... [2020-09-11 23:27:36,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8d07fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:27:36, skipping insertion in model container [2020-09-11 23:27:36,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:27:36" (3/3) ... [2020-09-11 23:27:36,175 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-09-11 23:27:36,185 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:27:36,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:27:36,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:27:36,196 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:27:36,235 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,235 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,237 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,238 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,238 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,240 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,243 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,244 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,244 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,244 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,252 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,269 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,269 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,269 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,273 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,274 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,274 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:27:36,302 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 23:27:36,326 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:27:36,326 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:27:36,326 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:27:36,327 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:27:36,327 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:27:36,327 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:27:36,327 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:27:36,327 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:27:36,346 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-11 23:27:36,349 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-11 23:27:36,403 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-11 23:27:36,403 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:27:36,410 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 23:27:36,413 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-11 23:27:36,442 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-11 23:27:36,442 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:27:36,443 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 23:27:36,445 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 23:27:36,446 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:27:37,819 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-11 23:27:37,988 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2483 [2020-09-11 23:27:37,988 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 23:27:37,993 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-11 23:27:38,028 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-11 23:27:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-11 23:27:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 23:27:38,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:38,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:38,043 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:38,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:38,051 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-09-11 23:27:38,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:38,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340369036] [2020-09-11 23:27:38,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:38,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340369036] [2020-09-11 23:27:38,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:38,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:27:38,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [266282061] [2020-09-11 23:27:38,354 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:38,359 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:38,380 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-11 23:27:38,381 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:38,397 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:38,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:27:38,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:38,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:27:38,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:38,427 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-11 23:27:38,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:38,489 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-11 23:27:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:27:38,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 23:27:38,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:38,510 INFO L225 Difference]: With dead ends: 290 [2020-09-11 23:27:38,510 INFO L226 Difference]: Without dead ends: 226 [2020-09-11 23:27:38,512 INFO L675 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 [2020-09-11 23:27:38,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-11 23:27:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-11 23:27:38,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-11 23:27:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-11 23:27:38,596 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-11 23:27:38,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:38,597 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-11 23:27:38,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:27:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-11 23:27:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 23:27:38,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:38,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:38,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:27:38,601 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:38,601 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-09-11 23:27:38,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:38,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193731964] [2020-09-11 23:27:38,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:38,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193731964] [2020-09-11 23:27:38,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:38,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:27:38,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2118547521] [2020-09-11 23:27:38,696 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:38,697 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:38,699 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-11 23:27:38,700 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:38,739 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:38,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:27:38,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:38,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:27:38,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:38,742 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-09-11 23:27:38,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:38,752 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-09-11 23:27:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:27:38,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 23:27:38,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:38,756 INFO L225 Difference]: With dead ends: 212 [2020-09-11 23:27:38,756 INFO L226 Difference]: Without dead ends: 212 [2020-09-11 23:27:38,757 INFO L675 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 [2020-09-11 23:27:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-11 23:27:38,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-09-11 23:27:38,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-11 23:27:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-09-11 23:27:38,781 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-09-11 23:27:38,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:38,782 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-09-11 23:27:38,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:27:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-09-11 23:27:38,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 23:27:38,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:38,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:38,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:27:38,785 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:38,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:38,785 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-09-11 23:27:38,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:38,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822289536] [2020-09-11 23:27:38,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:38,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822289536] [2020-09-11 23:27:38,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:38,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:27:38,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [21505810] [2020-09-11 23:27:38,894 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:38,895 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:38,897 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-09-11 23:27:38,897 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:38,949 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:38,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:27:38,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:38,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:27:38,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:27:38,950 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-09-11 23:27:38,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:38,985 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-09-11 23:27:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:27:38,987 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-11 23:27:38,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:38,990 INFO L225 Difference]: With dead ends: 293 [2020-09-11 23:27:38,990 INFO L226 Difference]: Without dead ends: 197 [2020-09-11 23:27:38,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:27:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-11 23:27:39,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-09-11 23:27:39,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-11 23:27:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-09-11 23:27:39,007 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-09-11 23:27:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:39,007 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-09-11 23:27:39,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:27:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-09-11 23:27:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:27:39,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:39,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:39,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:27:39,009 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:39,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:39,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-09-11 23:27:39,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:39,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739051666] [2020-09-11 23:27:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:39,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739051666] [2020-09-11 23:27:39,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:39,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:27:39,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [104182311] [2020-09-11 23:27:39,079 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:39,081 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:39,083 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-09-11 23:27:39,084 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:39,100 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:39,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:27:39,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:39,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:27:39,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:39,103 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-09-11 23:27:39,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:39,125 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-09-11 23:27:39,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:27:39,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 23:27:39,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:39,128 INFO L225 Difference]: With dead ends: 269 [2020-09-11 23:27:39,128 INFO L226 Difference]: Without dead ends: 209 [2020-09-11 23:27:39,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:39,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-11 23:27:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-09-11 23:27:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-11 23:27:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-09-11 23:27:39,161 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-09-11 23:27:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:39,161 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-09-11 23:27:39,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:27:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-09-11 23:27:39,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:27:39,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:39,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:39,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:27:39,167 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:39,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-09-11 23:27:39,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:39,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939283297] [2020-09-11 23:27:39,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:39,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939283297] [2020-09-11 23:27:39,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:39,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:27:39,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [790520040] [2020-09-11 23:27:39,266 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:39,267 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:39,270 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-09-11 23:27:39,270 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:39,335 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:39,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:27:39,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:39,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:27:39,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:27:39,337 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-09-11 23:27:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:39,394 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-09-11 23:27:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:27:39,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 23:27:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:39,396 INFO L225 Difference]: With dead ends: 250 [2020-09-11 23:27:39,396 INFO L226 Difference]: Without dead ends: 158 [2020-09-11 23:27:39,397 INFO L675 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 [2020-09-11 23:27:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-11 23:27:39,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-09-11 23:27:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-11 23:27:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-09-11 23:27:39,404 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-09-11 23:27:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:39,405 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-09-11 23:27:39,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:27:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-09-11 23:27:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:27:39,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:39,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:39,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:27:39,407 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-09-11 23:27:39,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:39,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245773591] [2020-09-11 23:27:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:39,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245773591] [2020-09-11 23:27:39,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:39,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:27:39,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1737449173] [2020-09-11 23:27:39,466 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:39,467 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:39,469 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-11 23:27:39,469 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:39,501 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:39,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:27:39,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:39,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:27:39,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:39,503 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-09-11 23:27:39,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:39,509 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-09-11 23:27:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:27:39,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 23:27:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:39,511 INFO L225 Difference]: With dead ends: 138 [2020-09-11 23:27:39,511 INFO L226 Difference]: Without dead ends: 138 [2020-09-11 23:27:39,511 INFO L675 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 [2020-09-11 23:27:39,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-11 23:27:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-11 23:27:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-11 23:27:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-09-11 23:27:39,517 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-09-11 23:27:39,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:39,518 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-09-11 23:27:39,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:27:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-09-11 23:27:39,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:27:39,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:39,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:39,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:27:39,520 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:39,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:39,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-09-11 23:27:39,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:39,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195036248] [2020-09-11 23:27:39,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:39,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:39,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195036248] [2020-09-11 23:27:39,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:39,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:27:39,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [455532248] [2020-09-11 23:27:39,568 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:39,569 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:39,571 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-11 23:27:39,572 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:39,580 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:39,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:27:39,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:39,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:27:39,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:39,586 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-09-11 23:27:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:39,624 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-09-11 23:27:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:27:39,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-11 23:27:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:39,625 INFO L225 Difference]: With dead ends: 146 [2020-09-11 23:27:39,626 INFO L226 Difference]: Without dead ends: 56 [2020-09-11 23:27:39,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:27:39,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-11 23:27:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-11 23:27:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-11 23:27:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-09-11 23:27:39,630 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-09-11 23:27:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:39,631 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-09-11 23:27:39,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:27:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-09-11 23:27:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:27:39,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:39,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:39,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:27:39,637 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:39,639 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-09-11 23:27:39,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:39,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451859070] [2020-09-11 23:27:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:39,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451859070] [2020-09-11 23:27:39,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:39,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:27:39,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2060880974] [2020-09-11 23:27:39,713 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:39,715 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:39,720 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-11 23:27:39,720 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:39,753 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:27:39,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:27:39,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:39,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:27:39,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:27:39,756 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-09-11 23:27:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:39,783 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-09-11 23:27:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:27:39,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:27:39,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:39,784 INFO L225 Difference]: With dead ends: 64 [2020-09-11 23:27:39,785 INFO L226 Difference]: Without dead ends: 52 [2020-09-11 23:27:39,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:27:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-11 23:27:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-11 23:27:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-11 23:27:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-09-11 23:27:39,788 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-09-11 23:27:39,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:39,788 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-09-11 23:27:39,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:27:39,788 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-09-11 23:27:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:27:39,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:39,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:39,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 23:27:39,791 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:39,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:39,791 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-09-11 23:27:39,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:39,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711030167] [2020-09-11 23:27:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:39,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711030167] [2020-09-11 23:27:39,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:39,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:27:39,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1128793897] [2020-09-11 23:27:39,908 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:39,909 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:39,913 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-11 23:27:39,913 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:39,941 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:39,964 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:39,979 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:39,992 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:40,019 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:40,037 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:40,049 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4813#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-11 23:27:40,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:27:40,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:40,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:27:40,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:27:40,050 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 5 states. [2020-09-11 23:27:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:40,108 INFO L93 Difference]: Finished difference Result 45 states and 76 transitions. [2020-09-11 23:27:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:27:40,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-11 23:27:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:40,109 INFO L225 Difference]: With dead ends: 45 [2020-09-11 23:27:40,110 INFO L226 Difference]: Without dead ends: 31 [2020-09-11 23:27:40,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:27:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-11 23:27:40,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-11 23:27:40,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-11 23:27:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-09-11 23:27:40,113 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 13 [2020-09-11 23:27:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:40,113 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-09-11 23:27:40,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:27:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-09-11 23:27:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 23:27:40,114 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:27:40,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:27:40,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 23:27:40,115 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:27:40,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:27:40,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-09-11 23:27:40,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:27:40,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444070932] [2020-09-11 23:27:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:27:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:27:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:27:40,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444070932] [2020-09-11 23:27:40,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:27:40,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 23:27:40,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [259623885] [2020-09-11 23:27:40,197 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:27:40,199 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:27:40,204 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-09-11 23:27:40,205 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:27:40,216 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:27:40,258 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4933#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:27:40,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 23:27:40,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:27:40,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 23:27:40,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:27:40,259 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 7 states. [2020-09-11 23:27:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:27:40,287 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-09-11 23:27:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:27:40,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-11 23:27:40,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:27:40,288 INFO L225 Difference]: With dead ends: 28 [2020-09-11 23:27:40,288 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:27:40,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:27:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:27:40,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:27:40,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:27:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:27:40,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-11 23:27:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:27:40,290 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:27:40,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 23:27:40,290 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:27:40,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:27:40,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-11 23:27:40,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:27:40 BasicIcfg [2020-09-11 23:27:40,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:27:40,298 INFO L168 Benchmark]: Toolchain (without parser) took 5483.61 ms. Allocated memory was 147.3 MB in the beginning and 245.9 MB in the end (delta: 98.6 MB). Free memory was 102.5 MB in the beginning and 104.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. [2020-09-11 23:27:40,299 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:27:40,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.95 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.9 MB in the beginning and 161.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-11 23:27:40,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.47 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 23:27:40,301 INFO L168 Benchmark]: Boogie Preprocessor took 32.53 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 23:27:40,302 INFO L168 Benchmark]: RCFGBuilder took 483.06 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 135.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:27:40,303 INFO L168 Benchmark]: TraceAbstraction took 4132.99 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.3 MB in the beginning and 104.3 MB in the end (delta: 31.0 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-09-11 23:27:40,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.95 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 101.9 MB in the beginning and 161.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 96.47 ms. Allocated memory is still 203.4 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.53 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.06 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 135.9 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4132.99 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.3 MB in the beginning and 104.3 MB in the end (delta: 31.0 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 656 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2483 CheckedPairsTotal, 57 TotalNumberOfCompositions - 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 197 SDtfs, 103 SDslu, 186 SDs, 0 SdLazy, 88 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 158 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...