/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/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:59:08,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:59:08,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:59:08,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:59:08,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:59:08,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:59:08,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:59:08,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:59:08,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:59:08,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:59:08,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:59:08,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:59:08,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:59:08,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:59:08,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:59:08,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:59:08,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:59:08,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:59:08,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:59:08,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:59:08,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:59:08,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:59:08,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:59:08,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:59:08,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:59:08,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:59:08,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:59:08,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:59:08,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:59:08,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:59:08,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:59:08,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:59:08,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:59:08,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:59:08,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:59:08,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:59:08,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 00:59:08,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:59:08,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:59:08,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:59:08,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:59:08,882 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:59:08,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:59:08,882 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:59:08,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:59:08,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:59:08,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:59:08,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:59:08,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:59:08,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:59:08,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:59:08,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:59:08,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:59:08,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:59:08,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:59:08,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:59:08,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:59:08,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:59:08,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:59:08,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:59:08,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:59:08,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:59:08,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:59:08,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:59:08,886 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:59:08,886 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:59:08,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:59:08,887 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:59:09,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:59:09,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:59:09,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:59:09,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:59:09,340 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:59:09,341 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-09-18 00:59:09,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de21b996/5641ee9ea6f54c6eb1f637063735e764/FLAGa86ebeb61 [2020-09-18 00:59:10,049 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:59:10,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2020-09-18 00:59:10,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de21b996/5641ee9ea6f54c6eb1f637063735e764/FLAGa86ebeb61 [2020-09-18 00:59:10,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de21b996/5641ee9ea6f54c6eb1f637063735e764 [2020-09-18 00:59:10,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:59:10,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:59:10,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:59:10,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:59:10,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:59:10,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:59:10" (1/1) ... [2020-09-18 00:59:10,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235a7cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:10, skipping insertion in model container [2020-09-18 00:59:10,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:59:10" (1/1) ... [2020-09-18 00:59:10,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:59:10,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:59:10,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:59:10,952 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:59:11,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:59:11,105 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:59:11,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11 WrapperNode [2020-09-18 00:59:11,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:59:11,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:59:11,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:59:11,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:59:11,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:59:11,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:59:11,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:59:11,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:59:11,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... [2020-09-18 00:59:11,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:59:11,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:59:11,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:59:11,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:59:11,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:59:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:59:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:59:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:59:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:59:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:59:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:59:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:59:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:59:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 00:59:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 00:59:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 00:59:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 00:59:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:59:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:59:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:59:11,290 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 00:59:11,744 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:59:11,744 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:59:11,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:59:11 BoogieIcfgContainer [2020-09-18 00:59:11,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:59:11,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:59:11,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:59:11,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:59:11,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:59:10" (1/3) ... [2020-09-18 00:59:11,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10619a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:59:11, skipping insertion in model container [2020-09-18 00:59:11,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:59:11" (2/3) ... [2020-09-18 00:59:11,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10619a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:59:11, skipping insertion in model container [2020-09-18 00:59:11,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:59:11" (3/3) ... [2020-09-18 00:59:11,767 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2020-09-18 00:59:11,777 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:59:11,777 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:59:11,788 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:59:11,789 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:59:11,819 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,820 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,820 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,823 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,824 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,825 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,825 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,825 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,825 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,826 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,838 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,838 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,842 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,843 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,843 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,846 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,847 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:59:11,872 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 00:59:11,900 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:59:11,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:59:11,901 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:59:11,901 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:59:11,901 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:59:11,901 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:59:11,901 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:59:11,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:59:11,920 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-09-18 00:59:11,923 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-18 00:59:11,973 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-18 00:59:11,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:59:11,982 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-18 00:59:11,986 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-09-18 00:59:12,010 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-09-18 00:59:12,011 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:59:12,012 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-18 00:59:12,014 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-18 00:59:12,016 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:59:13,388 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2895 [2020-09-18 00:59:13,389 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2020-09-18 00:59:13,393 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-18 00:59:13,458 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-18 00:59:13,461 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-18 00:59:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 00:59:13,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:13,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:13,475 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:13,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:13,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-09-18 00:59:13,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:13,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551261710] [2020-09-18 00:59:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:13,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551261710] [2020-09-18 00:59:13,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:13,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:13,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [883247759] [2020-09-18 00:59:13,768 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:13,775 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:13,798 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 00:59:13,799 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:13,821 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:13,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 00:59:13,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:13,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 00:59:13,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 00:59:13,840 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-18 00:59:13,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:13,884 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-18 00:59:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 00:59:13,886 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-18 00:59:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:13,915 INFO L225 Difference]: With dead ends: 850 [2020-09-18 00:59:13,916 INFO L226 Difference]: Without dead ends: 706 [2020-09-18 00:59:13,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 00:59:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-18 00:59:14,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-18 00:59:14,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-18 00:59:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-18 00:59:14,078 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-18 00:59:14,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:14,079 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-18 00:59:14,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 00:59:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-18 00:59:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:59:14,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:14,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:14,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:59:14,083 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:14,084 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-09-18 00:59:14,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:14,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124525472] [2020-09-18 00:59:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:14,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124525472] [2020-09-18 00:59:14,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:14,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:14,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1733718661] [2020-09-18 00:59:14,249 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:14,250 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:14,252 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-18 00:59:14,253 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:14,253 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:14,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:14,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:14,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:14,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:14,256 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-18 00:59:14,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:14,308 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-09-18 00:59:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:14,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 00:59:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:14,315 INFO L225 Difference]: With dead ends: 802 [2020-09-18 00:59:14,316 INFO L226 Difference]: Without dead ends: 658 [2020-09-18 00:59:14,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-09-18 00:59:14,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-09-18 00:59:14,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-09-18 00:59:14,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-09-18 00:59:14,347 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-09-18 00:59:14,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:14,348 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-09-18 00:59:14,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-09-18 00:59:14,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:59:14,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:14,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:14,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:59:14,351 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1502334909, now seen corresponding path program 1 times [2020-09-18 00:59:14,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:14,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311600468] [2020-09-18 00:59:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:14,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311600468] [2020-09-18 00:59:14,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:14,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:14,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2078753766] [2020-09-18 00:59:14,474 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:14,476 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:14,477 INFO L274 McrAutomatonBuilder]: Finished intersection with 14 states and 14 transitions. [2020-09-18 00:59:14,478 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:14,492 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:14,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:14,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:14,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:14,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:14,494 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-09-18 00:59:14,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:14,540 INFO L93 Difference]: Finished difference Result 738 states and 2404 transitions. [2020-09-18 00:59:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:14,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 00:59:14,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:14,546 INFO L225 Difference]: With dead ends: 738 [2020-09-18 00:59:14,546 INFO L226 Difference]: Without dead ends: 618 [2020-09-18 00:59:14,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:14,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-18 00:59:14,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-09-18 00:59:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-18 00:59:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2058 transitions. [2020-09-18 00:59:14,572 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 2058 transitions. Word has length 12 [2020-09-18 00:59:14,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:14,572 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 2058 transitions. [2020-09-18 00:59:14,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 2058 transitions. [2020-09-18 00:59:14,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:59:14,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:14,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:14,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:59:14,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:14,576 INFO L82 PathProgramCache]: Analyzing trace with hash 672248787, now seen corresponding path program 1 times [2020-09-18 00:59:14,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:14,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954892443] [2020-09-18 00:59:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:14,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954892443] [2020-09-18 00:59:14,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:14,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:14,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [119809035] [2020-09-18 00:59:14,679 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:14,684 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:14,705 INFO L274 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-09-18 00:59:14,705 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:14,764 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:14,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:14,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:14,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:14,766 INFO L87 Difference]: Start difference. First operand 618 states and 2058 transitions. Second operand 4 states. [2020-09-18 00:59:14,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:14,800 INFO L93 Difference]: Finished difference Result 658 states and 2130 transitions. [2020-09-18 00:59:14,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:14,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 00:59:14,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:14,806 INFO L225 Difference]: With dead ends: 658 [2020-09-18 00:59:14,806 INFO L226 Difference]: Without dead ends: 578 [2020-09-18 00:59:14,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-18 00:59:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2020-09-18 00:59:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2020-09-18 00:59:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 1906 transitions. [2020-09-18 00:59:14,830 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 1906 transitions. Word has length 13 [2020-09-18 00:59:14,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:14,831 INFO L479 AbstractCegarLoop]: Abstraction has 578 states and 1906 transitions. [2020-09-18 00:59:14,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:14,831 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 1906 transitions. [2020-09-18 00:59:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 00:59:14,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:14,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:14,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:59:14,833 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:14,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:14,834 INFO L82 PathProgramCache]: Analyzing trace with hash -488944074, now seen corresponding path program 1 times [2020-09-18 00:59:14,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:14,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168894080] [2020-09-18 00:59:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:14,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168894080] [2020-09-18 00:59:14,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:14,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:14,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1064458456] [2020-09-18 00:59:14,920 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:14,922 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:14,926 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 49 transitions. [2020-09-18 00:59:14,926 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:15,014 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:15,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:59:15,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:15,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:59:15,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:15,016 INFO L87 Difference]: Start difference. First operand 578 states and 1906 transitions. Second operand 5 states. [2020-09-18 00:59:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:15,068 INFO L93 Difference]: Finished difference Result 874 states and 2856 transitions. [2020-09-18 00:59:15,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:15,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-18 00:59:15,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:15,073 INFO L225 Difference]: With dead ends: 874 [2020-09-18 00:59:15,073 INFO L226 Difference]: Without dead ends: 482 [2020-09-18 00:59:15,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-18 00:59:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-18 00:59:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2020-09-18 00:59:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-18 00:59:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1564 transitions. [2020-09-18 00:59:15,092 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1564 transitions. Word has length 14 [2020-09-18 00:59:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:15,092 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1564 transitions. [2020-09-18 00:59:15,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:59:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1564 transitions. [2020-09-18 00:59:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-18 00:59:15,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:15,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:15,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 00:59:15,094 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:15,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:15,095 INFO L82 PathProgramCache]: Analyzing trace with hash -669040336, now seen corresponding path program 2 times [2020-09-18 00:59:15,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:15,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706279857] [2020-09-18 00:59:15,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:15,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706279857] [2020-09-18 00:59:15,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:15,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:59:15,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [290039842] [2020-09-18 00:59:15,166 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:15,168 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:15,171 INFO L274 McrAutomatonBuilder]: Finished intersection with 18 states and 20 transitions. [2020-09-18 00:59:15,171 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:15,176 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:15,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:15,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:15,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:15,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:15,177 INFO L87 Difference]: Start difference. First operand 482 states and 1564 transitions. Second operand 4 states. [2020-09-18 00:59:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:15,204 INFO L93 Difference]: Finished difference Result 514 states and 1620 transitions. [2020-09-18 00:59:15,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:15,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-18 00:59:15,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:15,208 INFO L225 Difference]: With dead ends: 514 [2020-09-18 00:59:15,208 INFO L226 Difference]: Without dead ends: 450 [2020-09-18 00:59:15,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-09-18 00:59:15,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-09-18 00:59:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-09-18 00:59:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1444 transitions. [2020-09-18 00:59:15,225 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1444 transitions. Word has length 14 [2020-09-18 00:59:15,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:15,225 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1444 transitions. [2020-09-18 00:59:15,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1444 transitions. [2020-09-18 00:59:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:15,227 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:15,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:15,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 00:59:15,228 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:15,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:15,228 INFO L82 PathProgramCache]: Analyzing trace with hash -453774883, now seen corresponding path program 1 times [2020-09-18 00:59:15,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:15,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495487954] [2020-09-18 00:59:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:15,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495487954] [2020-09-18 00:59:15,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:15,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:15,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1250836556] [2020-09-18 00:59:15,290 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:15,292 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:15,295 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 39 transitions. [2020-09-18 00:59:15,295 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:15,322 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:15,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:15,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:15,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:15,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:15,323 INFO L87 Difference]: Start difference. First operand 450 states and 1444 transitions. Second operand 4 states. [2020-09-18 00:59:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:15,355 INFO L93 Difference]: Finished difference Result 658 states and 2016 transitions. [2020-09-18 00:59:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:15,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-18 00:59:15,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:15,359 INFO L225 Difference]: With dead ends: 658 [2020-09-18 00:59:15,359 INFO L226 Difference]: Without dead ends: 482 [2020-09-18 00:59:15,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:15,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-09-18 00:59:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 418. [2020-09-18 00:59:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-18 00:59:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1276 transitions. [2020-09-18 00:59:15,376 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1276 transitions. Word has length 15 [2020-09-18 00:59:15,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:15,376 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 1276 transitions. [2020-09-18 00:59:15,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1276 transitions. [2020-09-18 00:59:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:15,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:15,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:15,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 00:59:15,378 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:15,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash -99110680, now seen corresponding path program 1 times [2020-09-18 00:59:15,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:15,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060998286] [2020-09-18 00:59:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:15,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060998286] [2020-09-18 00:59:15,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:15,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:15,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [516590055] [2020-09-18 00:59:15,434 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:15,435 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:15,438 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 37 transitions. [2020-09-18 00:59:15,439 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:15,440 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:15,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:15,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:15,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:15,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:15,441 INFO L87 Difference]: Start difference. First operand 418 states and 1276 transitions. Second operand 4 states. [2020-09-18 00:59:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:15,472 INFO L93 Difference]: Finished difference Result 598 states and 1736 transitions. [2020-09-18 00:59:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:15,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-18 00:59:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:15,476 INFO L225 Difference]: With dead ends: 598 [2020-09-18 00:59:15,476 INFO L226 Difference]: Without dead ends: 442 [2020-09-18 00:59:15,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:15,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-18 00:59:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 394. [2020-09-18 00:59:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-18 00:59:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1140 transitions. [2020-09-18 00:59:15,506 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1140 transitions. Word has length 15 [2020-09-18 00:59:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:15,507 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1140 transitions. [2020-09-18 00:59:15,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1140 transitions. [2020-09-18 00:59:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:15,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:15,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:15,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-18 00:59:15,509 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:15,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:15,509 INFO L82 PathProgramCache]: Analyzing trace with hash -96752386, now seen corresponding path program 1 times [2020-09-18 00:59:15,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:15,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979920943] [2020-09-18 00:59:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:15,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979920943] [2020-09-18 00:59:15,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:15,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:15,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [823783898] [2020-09-18 00:59:15,595 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:15,597 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:15,601 INFO L274 McrAutomatonBuilder]: Finished intersection with 32 states and 51 transitions. [2020-09-18 00:59:15,602 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:15,668 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:15,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 00:59:15,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:15,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 00:59:15,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:15,669 INFO L87 Difference]: Start difference. First operand 394 states and 1140 transitions. Second operand 5 states. [2020-09-18 00:59:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:15,710 INFO L93 Difference]: Finished difference Result 542 states and 1518 transitions. [2020-09-18 00:59:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:15,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 00:59:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:15,712 INFO L225 Difference]: With dead ends: 542 [2020-09-18 00:59:15,713 INFO L226 Difference]: Without dead ends: 254 [2020-09-18 00:59:15,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-18 00:59:15,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-18 00:59:15,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-18 00:59:15,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-18 00:59:15,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 691 transitions. [2020-09-18 00:59:15,721 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 691 transitions. Word has length 15 [2020-09-18 00:59:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:15,722 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 691 transitions. [2020-09-18 00:59:15,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 00:59:15,722 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 691 transitions. [2020-09-18 00:59:15,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 00:59:15,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:59:15,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:59:15,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-18 00:59:15,723 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:59:15,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:59:15,724 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-09-18 00:59:15,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:59:15,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517161964] [2020-09-18 00:59:15,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:59:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:59:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:59:15,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517161964] [2020-09-18 00:59:15,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:59:15,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:59:15,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1633250059] [2020-09-18 00:59:15,781 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:59:15,782 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:59:15,786 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-09-18 00:59:15,787 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:59:15,810 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:15,833 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:15,842 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:15,857 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:15,866 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:15,878 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:59:15,882 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:59:15,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:59:15,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:59:15,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:59:15,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:59:15,883 INFO L87 Difference]: Start difference. First operand 254 states and 691 transitions. Second operand 4 states. [2020-09-18 00:59:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:59:15,915 INFO L93 Difference]: Finished difference Result 182 states and 467 transitions. [2020-09-18 00:59:15,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:59:15,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-18 00:59:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:59:15,916 INFO L225 Difference]: With dead ends: 182 [2020-09-18 00:59:15,916 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:59:15,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:59:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:59:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:59:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:59:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:59:15,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-18 00:59:15,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:59:15,917 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:59:15,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:59:15,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:59:15,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:59:15,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-18 00:59:15,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:59:15 BasicIcfg [2020-09-18 00:59:15,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:59:15,926 INFO L168 Benchmark]: Toolchain (without parser) took 5623.93 ms. Allocated memory was 146.8 MB in the beginning and 286.3 MB in the end (delta: 139.5 MB). Free memory was 101.6 MB in the beginning and 182.6 MB in the end (delta: -81.0 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,927 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.90 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 160.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,930 INFO L168 Benchmark]: Boogie Preprocessor took 32.19 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,930 INFO L168 Benchmark]: RCFGBuilder took 554.01 ms. Allocated memory is still 203.9 MB. Free memory was 156.5 MB in the beginning and 133.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,931 INFO L168 Benchmark]: TraceAbstraction took 4164.60 ms. Allocated memory was 203.9 MB in the beginning and 286.3 MB in the end (delta: 82.3 MB). Free memory was 132.4 MB in the beginning and 182.6 MB in the end (delta: -50.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2020-09-18 00:59:15,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.90 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.9 MB in the beginning and 160.5 MB in the end (delta: -59.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 203.9 MB. Free memory was 160.5 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.19 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 554.01 ms. Allocated memory is still 203.9 MB. Free memory was 156.5 MB in the beginning and 133.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4164.60 ms. Allocated memory was 203.9 MB in the beginning and 286.3 MB in the end (delta: 82.3 MB). Free memory was 132.4 MB in the beginning and 182.6 MB in the end (delta: -50.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 91 ProgramPointsBefore, 39 ProgramPointsAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 927 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2895 CheckedPairsTotal, 62 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 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 282 SDtfs, 197 SDslu, 386 SDs, 0 SdLazy, 109 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 112 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 4588 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...