/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:44:31,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:44:31,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:44:31,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:44:31,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:44:31,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:44:31,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:44:31,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:44:31,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:44:31,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:44:31,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:44:31,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:44:31,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:44:31,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:44:31,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:44:31,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:44:31,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:44:31,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:44:31,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:44:31,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:44:31,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:44:31,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:44:31,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:44:31,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:44:31,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 23:44:31,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 23:44:31,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 23:44:31,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 23:44:31,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 23:44:31,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 23:44:31,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:44:31,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:44:31,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:44:31,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:44:31,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:44:31,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:44:31,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:44:31,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:44:31,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:44:31,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:44:31,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:44:31,807 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 23:44:31,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:44:31,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:44:31,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:44:31,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:44:31,862 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:44:31,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:44:31,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:44:31,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:44:31,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:44:31,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:44:31,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:44:31,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:44:31,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:44:31,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:44:31,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:44:31,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:44:31,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:44:31,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:44:31,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:44:31,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:44:31,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:44:31,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:44:31,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:44:31,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:44:31,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:44:31,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:44:31,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:44:31,868 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:44:31,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:44:31,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:44:31,868 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:44:32,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:44:32,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:44:32,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:44:32,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:44:32,328 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:44:32,330 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2020-09-11 23:44:32,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/636f1558d/acf393f07d3540f5b739b2b94d2e0075/FLAG429622d8d [2020-09-11 23:44:33,045 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:44:33,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2020-09-11 23:44:33,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/636f1558d/acf393f07d3540f5b739b2b94d2e0075/FLAG429622d8d [2020-09-11 23:44:33,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/636f1558d/acf393f07d3540f5b739b2b94d2e0075 [2020-09-11 23:44:33,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:44:33,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:44:33,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:44:33,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:44:33,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:44:33,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:44:33" (1/1) ... [2020-09-11 23:44:33,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c3ffee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:33, skipping insertion in model container [2020-09-11 23:44:33,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:44:33" (1/1) ... [2020-09-11 23:44:33,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:44:33,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:44:33,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:44:33,956 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:44:34,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:44:34,081 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:44:34,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34 WrapperNode [2020-09-11 23:44:34,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:44:34,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:44:34,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:44:34,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:44:34,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:44:34,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:44:34,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:44:34,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:44:34,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (1/1) ... [2020-09-11 23:44:34,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:44:34,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:44:34,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:44:34,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:44:34,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (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 23:44:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:44:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:44:34,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:44:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:44:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:44:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:44:34,256 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:44:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:44:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:44:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:44:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:44:34,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:44:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:44:34,260 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 23:44:34,627 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:44:34,627 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:44:34,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:44:34 BoogieIcfgContainer [2020-09-11 23:44:34,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:44:34,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:44:34,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:44:34,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:44:34,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:44:33" (1/3) ... [2020-09-11 23:44:34,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79582e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:44:34, skipping insertion in model container [2020-09-11 23:44:34,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:44:34" (2/3) ... [2020-09-11 23:44:34,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79582e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:44:34, skipping insertion in model container [2020-09-11 23:44:34,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:44:34" (3/3) ... [2020-09-11 23:44:34,642 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2020-09-11 23:44:34,652 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:44:34,653 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:44:34,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:44:34,662 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:44:34,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,694 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,694 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,695 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,696 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,696 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,697 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,697 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,698 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,698 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,699 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,704 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,719 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,720 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,720 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:44:34,744 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 23:44:34,771 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:44:34,772 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:44:34,772 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:44:34,772 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:44:34,772 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:44:34,773 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:44:34,773 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:44:34,773 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:44:34,791 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-11 23:44:34,794 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-11 23:44:34,849 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-11 23:44:34,849 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:44:34,856 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 46 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 23:44:34,859 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-11 23:44:34,881 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-11 23:44:34,881 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:44:34,882 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 46 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 23:44:34,884 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 23:44:34,886 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:44:36,312 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2826 [2020-09-11 23:44:36,313 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-09-11 23:44:36,318 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-11 23:44:36,359 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-11 23:44:36,362 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-11 23:44:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 23:44:36,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:36,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:36,374 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:36,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:36,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-09-11 23:44:36,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:36,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617133058] [2020-09-11 23:44:36,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:36,647 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 23:44:36,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617133058] [2020-09-11 23:44:36,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:36,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:44:36,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [457883667] [2020-09-11 23:44:36,652 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:36,655 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:36,673 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-11 23:44:36,673 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:36,676 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:36,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:44:36,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:36,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:44:36,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:44:36,699 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-11 23:44:36,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:36,746 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-11 23:44:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:44:36,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 23:44:36,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:36,767 INFO L225 Difference]: With dead ends: 282 [2020-09-11 23:44:36,767 INFO L226 Difference]: Without dead ends: 218 [2020-09-11 23:44:36,769 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 23:44:36,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-11 23:44:36,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-11 23:44:36,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-11 23:44:36,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-11 23:44:36,849 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-11 23:44:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:36,850 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-11 23:44:36,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:44:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-11 23:44:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 23:44:36,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:36,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:36,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:44:36,853 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:36,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-09-11 23:44:36,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:36,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236090027] [2020-09-11 23:44:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:36,930 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 23:44:36,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236090027] [2020-09-11 23:44:36,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:36,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:44:36,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [516344617] [2020-09-11 23:44:36,931 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:36,932 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:36,934 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-09-11 23:44:36,934 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:36,955 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:36,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:44:36,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:36,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:44:36,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:44:36,958 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-09-11 23:44:36,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:36,978 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-09-11 23:44:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:44:36,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 23:44:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:36,981 INFO L225 Difference]: With dead ends: 202 [2020-09-11 23:44:36,981 INFO L226 Difference]: Without dead ends: 202 [2020-09-11 23:44:36,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 23:44:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-11 23:44:36,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-11 23:44:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-11 23:44:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-11 23:44:37,000 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-09-11 23:44:37,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:37,000 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-11 23:44:37,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:44:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-11 23:44:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 23:44:37,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:37,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:37,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:44:37,003 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:37,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:37,003 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-09-11 23:44:37,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:37,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407324684] [2020-09-11 23:44:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:37,108 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 23:44:37,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407324684] [2020-09-11 23:44:37,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:37,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:44:37,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1820874434] [2020-09-11 23:44:37,110 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:37,111 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:37,114 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-09-11 23:44:37,115 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:37,149 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:37,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:44:37,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:37,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:44:37,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:44:37,150 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-09-11 23:44:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:37,159 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-09-11 23:44:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:44:37,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 23:44:37,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:37,162 INFO L225 Difference]: With dead ends: 198 [2020-09-11 23:44:37,162 INFO L226 Difference]: Without dead ends: 198 [2020-09-11 23:44:37,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 23:44:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-09-11 23:44:37,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-09-11 23:44:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-11 23:44:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-09-11 23:44:37,175 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-09-11 23:44:37,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:37,175 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-09-11 23:44:37,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:44:37,176 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-09-11 23:44:37,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:44:37,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:37,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:37,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:44:37,178 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:37,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:37,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-09-11 23:44:37,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:37,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201342178] [2020-09-11 23:44:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:37,251 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 23:44:37,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201342178] [2020-09-11 23:44:37,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:37,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:44:37,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [754745332] [2020-09-11 23:44:37,253 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:37,254 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:37,256 INFO L274 McrAutomatonBuilder]: Finished intersection with 31 states and 55 transitions. [2020-09-11 23:44:37,257 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:37,410 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:37,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:44:37,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:37,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:44:37,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:44:37,412 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-09-11 23:44:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:37,418 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-09-11 23:44:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:44:37,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 23:44:37,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:37,420 INFO L225 Difference]: With dead ends: 192 [2020-09-11 23:44:37,421 INFO L226 Difference]: Without dead ends: 192 [2020-09-11 23:44:37,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 23:44:37,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-11 23:44:37,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-09-11 23:44:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-09-11 23:44:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-09-11 23:44:37,432 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-09-11 23:44:37,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:37,432 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-09-11 23:44:37,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:44:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-09-11 23:44:37,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:44:37,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:37,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:37,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:44:37,435 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-09-11 23:44:37,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:37,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971496415] [2020-09-11 23:44:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:37,532 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 23:44:37,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971496415] [2020-09-11 23:44:37,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:37,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:44:37,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [678288778] [2020-09-11 23:44:37,534 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:37,535 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:37,539 INFO L274 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-09-11 23:44:37,539 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:37,570 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,627 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,676 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,720 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,741 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,779 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,820 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:37,835 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3186#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-11 23:44:37,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 23:44:37,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:37,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 23:44:37,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:44:37,836 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 5 states. [2020-09-11 23:44:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:37,896 INFO L93 Difference]: Finished difference Result 187 states and 470 transitions. [2020-09-11 23:44:37,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:44:37,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-11 23:44:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:37,897 INFO L225 Difference]: With dead ends: 187 [2020-09-11 23:44:37,898 INFO L226 Difference]: Without dead ends: 123 [2020-09-11 23:44:37,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:44:37,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-11 23:44:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-09-11 23:44:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-11 23:44:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-09-11 23:44:37,904 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 12 [2020-09-11 23:44:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:37,904 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-09-11 23:44:37,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 23:44:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-09-11 23:44:37,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 23:44:37,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:37,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:37,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:44:37,906 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:37,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:37,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-09-11 23:44:37,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:37,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26744497] [2020-09-11 23:44:37,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:37,949 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 23:44:37,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26744497] [2020-09-11 23:44:37,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:37,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:44:37,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [223830017] [2020-09-11 23:44:37,950 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:37,952 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:37,954 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-09-11 23:44:37,954 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:37,958 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:37,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:44:37,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:37,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:44:37,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:44:37,959 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-09-11 23:44:37,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:37,971 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-09-11 23:44:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:44:37,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-11 23:44:37,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:37,972 INFO L225 Difference]: With dead ends: 155 [2020-09-11 23:44:37,972 INFO L226 Difference]: Without dead ends: 124 [2020-09-11 23:44:37,973 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 23:44:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-11 23:44:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-09-11 23:44:37,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-11 23:44:37,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-09-11 23:44:37,977 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-09-11 23:44:37,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:37,977 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-09-11 23:44:37,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:44:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-09-11 23:44:37,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 23:44:37,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:37,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:37,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:44:37,979 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:37,980 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-09-11 23:44:37,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:37,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754637177] [2020-09-11 23:44:37,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:38,033 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 23:44:38,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754637177] [2020-09-11 23:44:38,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:38,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:44:38,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [673254492] [2020-09-11 23:44:38,034 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:38,036 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:38,043 INFO L274 McrAutomatonBuilder]: Finished intersection with 49 states and 91 transitions. [2020-09-11 23:44:38,043 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:38,230 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:38,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:44:38,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:38,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:44:38,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:44:38,231 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-09-11 23:44:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:38,253 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-09-11 23:44:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:44:38,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-11 23:44:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:38,254 INFO L225 Difference]: With dead ends: 154 [2020-09-11 23:44:38,254 INFO L226 Difference]: Without dead ends: 116 [2020-09-11 23:44:38,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 23:44:38,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-11 23:44:38,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-09-11 23:44:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-11 23:44:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-09-11 23:44:38,259 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-09-11 23:44:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:38,259 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-09-11 23:44:38,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:44:38,260 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-09-11 23:44:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 23:44:38,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:38,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:38,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:44:38,261 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:38,262 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-09-11 23:44:38,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:38,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948901217] [2020-09-11 23:44:38,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:38,365 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 23:44:38,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948901217] [2020-09-11 23:44:38,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:38,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 23:44:38,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [873502491] [2020-09-11 23:44:38,367 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:38,369 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:38,375 INFO L274 McrAutomatonBuilder]: Finished intersection with 43 states and 75 transitions. [2020-09-11 23:44:38,375 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:38,390 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:44:38,512 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4421#(not (= 3 ~__unbuffered_cnt~0)), 4422#(not (= ~__unbuffered_cnt~0 2)), 4423#(not (= ~__unbuffered_cnt~0 1)), 4424#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:44:38,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-11 23:44:38,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:38,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-11 23:44:38,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-11 23:44:38,513 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 10 states. [2020-09-11 23:44:38,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:38,587 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-09-11 23:44:38,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:44:38,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-09-11 23:44:38,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:38,588 INFO L225 Difference]: With dead ends: 110 [2020-09-11 23:44:38,588 INFO L226 Difference]: Without dead ends: 38 [2020-09-11 23:44:38,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-09-11 23:44:38,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-11 23:44:38,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-11 23:44:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-11 23:44:38,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-09-11 23:44:38,591 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-09-11 23:44:38,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:38,592 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-09-11 23:44:38,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-11 23:44:38,592 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-09-11 23:44:38,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 23:44:38,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:38,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:38,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 23:44:38,594 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:38,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:38,594 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-09-11 23:44:38,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:38,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16121140] [2020-09-11 23:44:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:38,689 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 23:44:38,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16121140] [2020-09-11 23:44:38,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:38,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:44:38,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1315479988] [2020-09-11 23:44:38,690 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:38,694 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:38,700 INFO L274 McrAutomatonBuilder]: Finished intersection with 37 states and 54 transitions. [2020-09-11 23:44:38,700 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:38,713 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:38,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:44:38,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:38,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:44:38,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:44:38,715 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-09-11 23:44:38,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:38,733 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-09-11 23:44:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:44:38,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-11 23:44:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:38,734 INFO L225 Difference]: With dead ends: 56 [2020-09-11 23:44:38,734 INFO L226 Difference]: Without dead ends: 35 [2020-09-11 23:44:38,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 23:44:38,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-11 23:44:38,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-11 23:44:38,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-11 23:44:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-09-11 23:44:38,736 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-09-11 23:44:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:38,737 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-09-11 23:44:38,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:44:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-09-11 23:44:38,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 23:44:38,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:44:38,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:44:38,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 23:44:38,738 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:44:38,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:44:38,739 INFO L82 PathProgramCache]: Analyzing trace with hash 265740449, now seen corresponding path program 2 times [2020-09-11 23:44:38,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:44:38,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467629290] [2020-09-11 23:44:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:44:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:44:38,791 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 23:44:38,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467629290] [2020-09-11 23:44:38,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:44:38,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:44:38,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1819822142] [2020-09-11 23:44:38,793 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:44:38,794 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:44:38,800 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 47 transitions. [2020-09-11 23:44:38,800 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:44:38,823 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:44:38,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:44:38,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:44:38,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:44:38,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:44:38,824 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-09-11 23:44:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:44:38,840 INFO L93 Difference]: Finished difference Result 34 states and 55 transitions. [2020-09-11 23:44:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:44:38,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-11 23:44:38,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:44:38,841 INFO L225 Difference]: With dead ends: 34 [2020-09-11 23:44:38,841 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:44:38,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 23:44:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:44:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:44:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:44:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:44:38,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-11 23:44:38,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:44:38,843 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:44:38,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:44:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:44:38,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:44:38,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-11 23:44:38,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:44:38 BasicIcfg [2020-09-11 23:44:38,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:44:38,852 INFO L168 Benchmark]: Toolchain (without parser) took 5521.57 ms. Allocated memory was 140.5 MB in the beginning and 282.6 MB in the end (delta: 142.1 MB). Free memory was 102.4 MB in the beginning and 191.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. [2020-09-11 23:44:38,853 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:44:38,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.91 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 162.1 MB in the end (delta: -60.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:44:38,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.20 ms. Allocated memory is still 204.5 MB. Free memory was 162.1 MB in the beginning and 160.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-11 23:44:38,856 INFO L168 Benchmark]: Boogie Preprocessor took 39.81 ms. Allocated memory is still 204.5 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 23:44:38,856 INFO L168 Benchmark]: RCFGBuilder took 456.42 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 136.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-09-11 23:44:38,857 INFO L168 Benchmark]: TraceAbstraction took 4214.88 ms. Allocated memory was 204.5 MB in the beginning and 282.6 MB in the end (delta: 78.1 MB). Free memory was 135.7 MB in the beginning and 191.2 MB in the end (delta: -55.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-11 23:44:38,862 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.91 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 162.1 MB in the end (delta: -60.0 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.20 ms. Allocated memory is still 204.5 MB. Free memory was 162.1 MB in the beginning and 160.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.81 ms. Allocated memory is still 204.5 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.42 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 136.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4214.88 ms. Allocated memory was 204.5 MB in the beginning and 282.6 MB in the end (delta: 78.1 MB). Free memory was 135.7 MB in the beginning and 191.2 MB in the end (delta: -55.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2826 CheckedPairsTotal, 58 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: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 196 SDtfs, 125 SDslu, 232 SDs, 0 SdLazy, 133 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 262 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 3872 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...