/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-ext/01_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 15:13:28,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 15:13:28,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 15:13:28,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 15:13:28,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 15:13:28,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 15:13:28,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 15:13:28,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 15:13:28,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 15:13:28,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 15:13:28,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 15:13:28,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 15:13:28,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 15:13:28,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 15:13:28,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 15:13:28,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 15:13:28,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 15:13:28,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 15:13:28,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 15:13:28,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 15:13:28,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 15:13:28,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 15:13:28,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 15:13:28,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 15:13:28,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 15:13:28,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 15:13:28,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 15:13:28,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 15:13:28,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 15:13:28,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 15:13:28,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 15:13:28,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 15:13:28,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 15:13:28,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 15:13:28,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 15:13:28,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 15:13:28,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf [2019-12-27 15:13:28,825 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 15:13:28,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 15:13:28,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 15:13:28,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 15:13:28,826 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 15:13:28,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 15:13:28,827 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 15:13:28,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 15:13:28,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 15:13:28,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 15:13:28,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 15:13:28,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 15:13:28,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 15:13:28,829 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 15:13:28,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 15:13:28,829 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 15:13:28,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 15:13:28,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 15:13:28,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 15:13:28,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 15:13:28,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 15:13:28,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 15:13:28,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 15:13:28,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 15:13:28,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 15:13:28,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 15:13:28,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 15:13:28,832 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 15:13:28,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 15:13:28,833 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 15:13:28,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 15:13:29,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 15:13:29,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 15:13:29,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 15:13:29,147 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 15:13:29,147 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 15:13:29,148 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01_inc.i [2019-12-27 15:13:29,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cef03a7f/8e712afb3e42416a8018d55e10752bec/FLAG84d82f442 [2019-12-27 15:13:29,702 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 15:13:29,706 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01_inc.i [2019-12-27 15:13:29,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cef03a7f/8e712afb3e42416a8018d55e10752bec/FLAG84d82f442 [2019-12-27 15:13:30,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cef03a7f/8e712afb3e42416a8018d55e10752bec [2019-12-27 15:13:30,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 15:13:30,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 15:13:30,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 15:13:30,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 15:13:30,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 15:13:30,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e7861d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30, skipping insertion in model container [2019-12-27 15:13:30,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 15:13:30,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 15:13:30,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:13:30,649 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 15:13:30,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 15:13:30,789 INFO L208 MainTranslator]: Completed translation [2019-12-27 15:13:30,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30 WrapperNode [2019-12-27 15:13:30,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 15:13:30,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 15:13:30,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 15:13:30,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 15:13:30,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 15:13:30,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 15:13:30,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 15:13:30,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 15:13:30,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (1/1) ... [2019-12-27 15:13:30,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 15:13:30,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 15:13:30,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 15:13:30,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 15:13:30,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (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 [2019-12-27 15:13:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 15:13:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 15:13:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 15:13:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 15:13:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 15:13:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 15:13:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 15:13:30,935 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 15:13:31,113 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-27 15:13:31,114 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-27 15:13:31,114 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-12-27 15:13:31,250 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 15:13:31,251 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-27 15:13:31,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:13:31 BoogieIcfgContainer [2019-12-27 15:13:31,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 15:13:31,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 15:13:31,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 15:13:31,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 15:13:31,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:13:30" (1/3) ... [2019-12-27 15:13:31,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e79766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:13:31, skipping insertion in model container [2019-12-27 15:13:31,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:13:30" (2/3) ... [2019-12-27 15:13:31,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60e79766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:13:31, skipping insertion in model container [2019-12-27 15:13:31,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:13:31" (3/3) ... [2019-12-27 15:13:31,261 INFO L109 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2019-12-27 15:13:31,271 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 15:13:31,272 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 15:13:31,278 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 15:13:31,279 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 15:13:31,300 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,301 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,301 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,301 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,302 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,302 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,303 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,303 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,304 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,305 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,309 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,309 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,310 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,310 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,310 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:31,326 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 15:13:31,342 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:13:31,342 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:13:31,342 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:13:31,342 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:13:31,343 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:13:31,343 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:13:31,343 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:13:31,343 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:13:31,354 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions [2019-12-27 15:13:31,356 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions [2019-12-27 15:13:31,387 INFO L132 PetriNetUnfolder]: 4/40 cut-off events. [2019-12-27 15:13:31,387 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 15:13:31,393 INFO L76 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2019-12-27 15:13:31,396 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions [2019-12-27 15:13:31,411 INFO L132 PetriNetUnfolder]: 4/40 cut-off events. [2019-12-27 15:13:31,411 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 15:13:31,413 INFO L76 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2019-12-27 15:13:31,415 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 260 [2019-12-27 15:13:31,416 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:13:32,424 INFO L206 etLargeBlockEncoding]: Checked pairs total: 191 [2019-12-27 15:13:32,424 INFO L214 etLargeBlockEncoding]: Total number of compositions: 30 [2019-12-27 15:13:32,429 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 15:13:32,443 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 15:13:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 15:13:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 15:13:32,453 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:32,454 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 15:13:32,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:32,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:32,462 INFO L82 PathProgramCache]: Analyzing trace with hash 4724429, now seen corresponding path program 1 times [2019-12-27 15:13:32,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:32,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436895150] [2019-12-27 15:13:32,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:13:32,619 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436895150] [2019-12-27 15:13:32,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:32,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 15:13:32,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1863584438] [2019-12-27 15:13:32,622 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:32,628 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:32,640 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 5 states and 4 transitions. [2019-12-27 15:13:32,641 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:32,644 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:32,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 15:13:32,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:32,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 15:13:32,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 15:13:32,659 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-27 15:13:32,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:32,662 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-12-27 15:13:32,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 15:13:32,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-27 15:13:32,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:32,671 INFO L225 Difference]: With dead ends: 11 [2019-12-27 15:13:32,671 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 15:13:32,673 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 15:13:32,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 15:13:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 15:13:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 15:13:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-27 15:13:32,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-27 15:13:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:32,698 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-27 15:13:32,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 15:13:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-27 15:13:32,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 15:13:32,699 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:32,699 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 15:13:32,700 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:32,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:32,700 INFO L82 PathProgramCache]: Analyzing trace with hash 245171091, now seen corresponding path program 1 times [2019-12-27 15:13:32,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:32,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278963801] [2019-12-27 15:13:32,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:32,759 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:13:32,760 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:13:32,762 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:13:32,762 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 15:13:32,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,773 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,775 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,777 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,777 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,778 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,778 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,778 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:32,782 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 15:13:32,782 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:13:32,782 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:13:32,782 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:13:32,782 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:13:32,782 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:13:32,783 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:13:32,783 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:13:32,783 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:13:32,785 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions [2019-12-27 15:13:32,785 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions [2019-12-27 15:13:32,814 INFO L132 PetriNetUnfolder]: 7/63 cut-off events. [2019-12-27 15:13:32,814 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 15:13:32,820 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2019-12-27 15:13:32,823 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions [2019-12-27 15:13:32,843 INFO L132 PetriNetUnfolder]: 7/63 cut-off events. [2019-12-27 15:13:32,843 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 15:13:32,845 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2019-12-27 15:13:32,847 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 884 [2019-12-27 15:13:32,847 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:13:33,566 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2180 [2019-12-27 15:13:33,567 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-27 15:13:33,568 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 22 transitions [2019-12-27 15:13:33,585 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 312 states. [2019-12-27 15:13:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2019-12-27 15:13:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 15:13:33,587 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:33,587 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:33,588 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:13:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:33,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1963880529, now seen corresponding path program 1 times [2019-12-27 15:13:33,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:33,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463881389] [2019-12-27 15:13:33,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:13:33,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463881389] [2019-12-27 15:13:33,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:33,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:33,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [698814878] [2019-12-27 15:13:33,792 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:33,792 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:33,795 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 15:13:33,795 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:33,795 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:33,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:13:33,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:33,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:13:33,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:13:33,797 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 5 states. [2019-12-27 15:13:33,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:33,972 INFO L93 Difference]: Finished difference Result 325 states and 780 transitions. [2019-12-27 15:13:33,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:13:33,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 15:13:33,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:33,989 INFO L225 Difference]: With dead ends: 325 [2019-12-27 15:13:33,989 INFO L226 Difference]: Without dead ends: 325 [2019-12-27 15:13:33,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:13:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-27 15:13:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 261. [2019-12-27 15:13:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-12-27 15:13:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 652 transitions. [2019-12-27 15:13:34,060 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 652 transitions. Word has length 8 [2019-12-27 15:13:34,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:34,060 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 652 transitions. [2019-12-27 15:13:34,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:13:34,060 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 652 transitions. [2019-12-27 15:13:34,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 15:13:34,066 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:34,066 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2019-12-27 15:13:34,066 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:13:34,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:34,067 INFO L82 PathProgramCache]: Analyzing trace with hash -167871164, now seen corresponding path program 1 times [2019-12-27 15:13:34,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:34,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869618337] [2019-12-27 15:13:34,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:34,097 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:13:34,097 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:13:34,097 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:13:34,097 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 15:13:34,107 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,108 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,108 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,108 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,108 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,109 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,109 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,109 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,109 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,109 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,110 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,110 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,110 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,111 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,111 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,111 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,112 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,113 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,113 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,113 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,114 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,114 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,114 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,114 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,114 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,119 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,119 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,119 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,120 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,120 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,120 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,120 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,121 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,125 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,125 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,125 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,125 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,126 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,129 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,129 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,129 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,140 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,140 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,141 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,141 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,141 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,144 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,144 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,145 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,145 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:34,146 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 15:13:34,147 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:13:34,147 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:13:34,147 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:13:34,147 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:13:34,147 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:13:34,147 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:13:34,148 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:13:34,148 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:13:34,151 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions [2019-12-27 15:13:34,151 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions [2019-12-27 15:13:34,186 INFO L132 PetriNetUnfolder]: 10/86 cut-off events. [2019-12-27 15:13:34,187 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 15:13:34,192 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2019-12-27 15:13:34,199 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions [2019-12-27 15:13:34,222 INFO L132 PetriNetUnfolder]: 10/86 cut-off events. [2019-12-27 15:13:34,223 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 15:13:34,228 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2019-12-27 15:13:34,232 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1872 [2019-12-27 15:13:34,232 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:13:35,041 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5122 [2019-12-27 15:13:35,042 INFO L214 etLargeBlockEncoding]: Total number of compositions: 34 [2019-12-27 15:13:35,042 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 30 transitions [2019-12-27 15:13:35,140 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2188 states. [2019-12-27 15:13:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states. [2019-12-27 15:13:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 15:13:35,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:35,141 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:35,141 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:13:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:35,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1203016923, now seen corresponding path program 1 times [2019-12-27 15:13:35,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:35,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584111989] [2019-12-27 15:13:35,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:13:35,230 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584111989] [2019-12-27 15:13:35,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:35,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:35,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1821831142] [2019-12-27 15:13:35,231 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:35,231 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:35,232 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 15:13:35,233 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:35,233 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:35,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:13:35,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:35,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:13:35,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:13:35,234 INFO L87 Difference]: Start difference. First operand 2188 states. Second operand 5 states. [2019-12-27 15:13:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:35,414 INFO L93 Difference]: Finished difference Result 2674 states and 9044 transitions. [2019-12-27 15:13:35,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:13:35,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 15:13:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:35,441 INFO L225 Difference]: With dead ends: 2674 [2019-12-27 15:13:35,441 INFO L226 Difference]: Without dead ends: 2674 [2019-12-27 15:13:35,442 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:13:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2019-12-27 15:13:35,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1998. [2019-12-27 15:13:35,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1998 states. [2019-12-27 15:13:35,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 7014 transitions. [2019-12-27 15:13:35,592 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 7014 transitions. Word has length 8 [2019-12-27 15:13:35,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:35,593 INFO L462 AbstractCegarLoop]: Abstraction has 1998 states and 7014 transitions. [2019-12-27 15:13:35,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:13:35,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 7014 transitions. [2019-12-27 15:13:35,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:13:35,594 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:35,594 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:35,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:13:35,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:35,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1304332861, now seen corresponding path program 1 times [2019-12-27 15:13:35,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:35,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462942376] [2019-12-27 15:13:35,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:35,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:13:35,674 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462942376] [2019-12-27 15:13:35,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:35,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:35,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [934234987] [2019-12-27 15:13:35,675 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:35,676 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:35,678 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:13:35,678 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:35,678 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:35,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:13:35,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:35,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:13:35,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:13:35,679 INFO L87 Difference]: Start difference. First operand 1998 states and 7014 transitions. Second operand 5 states. [2019-12-27 15:13:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:35,843 INFO L93 Difference]: Finished difference Result 3058 states and 10283 transitions. [2019-12-27 15:13:35,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:13:35,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 15:13:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:35,868 INFO L225 Difference]: With dead ends: 3058 [2019-12-27 15:13:35,868 INFO L226 Difference]: Without dead ends: 3058 [2019-12-27 15:13:35,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:13:35,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2019-12-27 15:13:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2270. [2019-12-27 15:13:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2019-12-27 15:13:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 7909 transitions. [2019-12-27 15:13:35,969 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 7909 transitions. Word has length 11 [2019-12-27 15:13:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:35,970 INFO L462 AbstractCegarLoop]: Abstraction has 2270 states and 7909 transitions. [2019-12-27 15:13:35,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:13:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 7909 transitions. [2019-12-27 15:13:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 15:13:35,971 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:35,972 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2019-12-27 15:13:35,972 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:13:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash 828376654, now seen corresponding path program 1 times [2019-12-27 15:13:35,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:35,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001495542] [2019-12-27 15:13:35,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:36,003 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:13:36,003 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:13:36,009 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:13:36,009 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 15:13:36,021 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,021 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,021 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,021 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,022 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,022 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,024 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,024 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,024 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,026 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,026 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,028 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,028 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,028 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,029 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,030 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,030 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,030 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,030 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,031 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,031 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,031 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,033 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,033 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,034 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,035 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,035 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,036 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,036 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,036 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,037 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:36,038 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 15:13:36,038 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:13:36,038 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:13:36,038 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:13:36,038 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:13:36,038 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:13:36,039 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:13:36,039 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:13:36,039 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:13:36,040 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions [2019-12-27 15:13:36,040 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions [2019-12-27 15:13:36,068 INFO L132 PetriNetUnfolder]: 13/109 cut-off events. [2019-12-27 15:13:36,068 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 15:13:36,070 INFO L76 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2019-12-27 15:13:36,075 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions [2019-12-27 15:13:36,090 INFO L132 PetriNetUnfolder]: 13/109 cut-off events. [2019-12-27 15:13:36,090 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 15:13:36,092 INFO L76 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 283 event pairs. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2019-12-27 15:13:36,097 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3224 [2019-12-27 15:13:36,098 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:13:37,082 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9341 [2019-12-27 15:13:37,082 INFO L214 etLargeBlockEncoding]: Total number of compositions: 42 [2019-12-27 15:13:37,083 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 37 transitions [2019-12-27 15:13:38,146 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13605 states. [2019-12-27 15:13:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 13605 states. [2019-12-27 15:13:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 15:13:38,147 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:38,147 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:38,147 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:38,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:38,148 INFO L82 PathProgramCache]: Analyzing trace with hash 2031187017, now seen corresponding path program 1 times [2019-12-27 15:13:38,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:38,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204330545] [2019-12-27 15:13:38,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:13:38,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204330545] [2019-12-27 15:13:38,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:38,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:38,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1015064727] [2019-12-27 15:13:38,228 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:38,229 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:38,229 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 15:13:38,229 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:38,230 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:38,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:13:38,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:38,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:13:38,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:13:38,231 INFO L87 Difference]: Start difference. First operand 13605 states. Second operand 5 states. [2019-12-27 15:13:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:38,714 INFO L93 Difference]: Finished difference Result 17829 states and 77939 transitions. [2019-12-27 15:13:38,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:13:38,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 15:13:38,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:38,851 INFO L225 Difference]: With dead ends: 17829 [2019-12-27 15:13:38,851 INFO L226 Difference]: Without dead ends: 17829 [2019-12-27 15:13:38,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:13:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17829 states. [2019-12-27 15:13:39,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17829 to 12933. [2019-12-27 15:13:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12933 states. [2019-12-27 15:13:39,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12933 states to 12933 states and 58367 transitions. [2019-12-27 15:13:39,616 INFO L78 Accepts]: Start accepts. Automaton has 12933 states and 58367 transitions. Word has length 8 [2019-12-27 15:13:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:39,616 INFO L462 AbstractCegarLoop]: Abstraction has 12933 states and 58367 transitions. [2019-12-27 15:13:39,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:13:39,616 INFO L276 IsEmpty]: Start isEmpty. Operand 12933 states and 58367 transitions. [2019-12-27 15:13:39,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:13:39,617 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:39,617 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:39,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:39,618 INFO L82 PathProgramCache]: Analyzing trace with hash 571636238, now seen corresponding path program 1 times [2019-12-27 15:13:39,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:39,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410653284] [2019-12-27 15:13:39,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:13:39,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410653284] [2019-12-27 15:13:39,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:39,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:39,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1636265879] [2019-12-27 15:13:39,762 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:39,764 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:39,764 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:13:39,765 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:39,765 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:39,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:13:39,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:39,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:13:39,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:13:39,766 INFO L87 Difference]: Start difference. First operand 12933 states and 58367 transitions. Second operand 5 states. [2019-12-27 15:13:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:41,121 INFO L93 Difference]: Finished difference Result 21213 states and 92351 transitions. [2019-12-27 15:13:41,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:13:41,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 15:13:41,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:41,249 INFO L225 Difference]: With dead ends: 21213 [2019-12-27 15:13:41,249 INFO L226 Difference]: Without dead ends: 21213 [2019-12-27 15:13:41,252 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:13:41,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21213 states. [2019-12-27 15:13:41,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21213 to 15330. [2019-12-27 15:13:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15330 states. [2019-12-27 15:13:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15330 states to 15330 states and 68806 transitions. [2019-12-27 15:13:42,059 INFO L78 Accepts]: Start accepts. Automaton has 15330 states and 68806 transitions. Word has length 11 [2019-12-27 15:13:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:42,060 INFO L462 AbstractCegarLoop]: Abstraction has 15330 states and 68806 transitions. [2019-12-27 15:13:42,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:13:42,060 INFO L276 IsEmpty]: Start isEmpty. Operand 15330 states and 68806 transitions. [2019-12-27 15:13:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 15:13:42,062 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:42,062 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:42,062 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:42,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:42,063 INFO L82 PathProgramCache]: Analyzing trace with hash -83314279, now seen corresponding path program 1 times [2019-12-27 15:13:42,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:42,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409366509] [2019-12-27 15:13:42,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 15:13:42,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409366509] [2019-12-27 15:13:42,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:42,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:42,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1693910528] [2019-12-27 15:13:42,159 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:42,160 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:42,161 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 15:13:42,161 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:42,161 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:42,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:13:42,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:42,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:13:42,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:13:42,162 INFO L87 Difference]: Start difference. First operand 15330 states and 68806 transitions. Second operand 5 states. [2019-12-27 15:13:42,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:42,471 INFO L93 Difference]: Finished difference Result 24943 states and 108222 transitions. [2019-12-27 15:13:42,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:13:42,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 15:13:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:42,571 INFO L225 Difference]: With dead ends: 24943 [2019-12-27 15:13:42,572 INFO L226 Difference]: Without dead ends: 24943 [2019-12-27 15:13:42,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:13:42,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24943 states. [2019-12-27 15:13:44,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24943 to 17989. [2019-12-27 15:13:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17989 states. [2019-12-27 15:13:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17989 states to 17989 states and 80300 transitions. [2019-12-27 15:13:44,449 INFO L78 Accepts]: Start accepts. Automaton has 17989 states and 80300 transitions. Word has length 14 [2019-12-27 15:13:44,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:44,450 INFO L462 AbstractCegarLoop]: Abstraction has 17989 states and 80300 transitions. [2019-12-27 15:13:44,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:13:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 17989 states and 80300 transitions. [2019-12-27 15:13:44,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:13:44,452 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:44,452 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:44,452 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:44,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:44,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1250988120, now seen corresponding path program 1 times [2019-12-27 15:13:44,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:44,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893035166] [2019-12-27 15:13:44,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-27 15:13:44,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893035166] [2019-12-27 15:13:44,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943921705] [2019-12-27 15:13:44,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:13:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:44,611 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-27 15:13:44,614 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 15:13:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:13:44,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 15:13:44,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2019-12-27 15:13:44,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2123587287] [2019-12-27 15:13:44,666 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:44,667 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:44,669 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 28 states and 39 transitions. [2019-12-27 15:13:44,670 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:44,673 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-27 15:13:44,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:13:44,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:44,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:13:44,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:13:44,673 INFO L87 Difference]: Start difference. First operand 17989 states and 80300 transitions. Second operand 7 states. [2019-12-27 15:13:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:45,367 INFO L93 Difference]: Finished difference Result 28215 states and 118418 transitions. [2019-12-27 15:13:45,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:13:45,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-27 15:13:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:45,438 INFO L225 Difference]: With dead ends: 28215 [2019-12-27 15:13:45,438 INFO L226 Difference]: Without dead ends: 28215 [2019-12-27 15:13:45,438 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-12-27 15:13:45,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28215 states. [2019-12-27 15:13:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28215 to 19576. [2019-12-27 15:13:46,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19576 states. [2019-12-27 15:13:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19576 states to 19576 states and 85353 transitions. [2019-12-27 15:13:46,506 INFO L78 Accepts]: Start accepts. Automaton has 19576 states and 85353 transitions. Word has length 15 [2019-12-27 15:13:46,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:46,506 INFO L462 AbstractCegarLoop]: Abstraction has 19576 states and 85353 transitions. [2019-12-27 15:13:46,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:13:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19576 states and 85353 transitions. [2019-12-27 15:13:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:13:46,508 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:46,508 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:46,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:13:46,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:46,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1126296492, now seen corresponding path program 1 times [2019-12-27 15:13:46,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:46,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360024101] [2019-12-27 15:13:46,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:13:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:13:46,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360024101] [2019-12-27 15:13:46,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:13:46,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:13:46,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1550470909] [2019-12-27 15:13:46,749 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:13:46,750 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:13:46,752 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 45 transitions. [2019-12-27 15:13:46,752 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:13:46,753 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:13:46,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:13:46,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:13:46,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:13:46,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:13:46,754 INFO L87 Difference]: Start difference. First operand 19576 states and 85353 transitions. Second operand 3 states. [2019-12-27 15:13:46,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:13:46,911 INFO L93 Difference]: Finished difference Result 29784 states and 115156 transitions. [2019-12-27 15:13:46,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:13:46,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-27 15:13:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:13:46,988 INFO L225 Difference]: With dead ends: 29784 [2019-12-27 15:13:46,989 INFO L226 Difference]: Without dead ends: 29784 [2019-12-27 15:13:46,989 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:13:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29784 states. [2019-12-27 15:13:48,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29784 to 26264. [2019-12-27 15:13:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26264 states. [2019-12-27 15:13:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26264 states to 26264 states and 105288 transitions. [2019-12-27 15:13:48,730 INFO L78 Accepts]: Start accepts. Automaton has 26264 states and 105288 transitions. Word has length 15 [2019-12-27 15:13:48,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:13:48,730 INFO L462 AbstractCegarLoop]: Abstraction has 26264 states and 105288 transitions. [2019-12-27 15:13:48,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:13:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 26264 states and 105288 transitions. [2019-12-27 15:13:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:13:48,732 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:13:48,732 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 15:13:48,733 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:13:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:13:48,733 INFO L82 PathProgramCache]: Analyzing trace with hash -641242489, now seen corresponding path program 1 times [2019-12-27 15:13:48,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:13:48,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385841398] [2019-12-27 15:13:48,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:13:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:13:48,756 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:13:48,756 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:13:48,756 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:13:48,756 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 15:13:48,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,765 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,765 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,766 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,766 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,767 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,767 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,768 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,768 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,770 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,774 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,774 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,775 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,775 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,786 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,786 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,787 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,787 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,787 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,788 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,788 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,788 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,789 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,789 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,790 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,790 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,790 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,792 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,792 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:13:48,794 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 15:13:48,794 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:13:48,794 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:13:48,794 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:13:48,794 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:13:48,794 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:13:48,794 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:13:48,794 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:13:48,795 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:13:48,796 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions [2019-12-27 15:13:48,796 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions [2019-12-27 15:13:48,814 INFO L132 PetriNetUnfolder]: 16/132 cut-off events. [2019-12-27 15:13:48,815 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 15:13:48,818 INFO L76 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 364 event pairs. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2019-12-27 15:13:48,826 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions [2019-12-27 15:13:48,843 INFO L132 PetriNetUnfolder]: 16/132 cut-off events. [2019-12-27 15:13:48,843 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 15:13:48,846 INFO L76 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 364 event pairs. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2019-12-27 15:13:48,854 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4940 [2019-12-27 15:13:48,854 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:13:50,008 INFO L206 etLargeBlockEncoding]: Checked pairs total: 17447 [2019-12-27 15:13:50,009 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2019-12-27 15:13:50,009 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 47 transitions [2019-12-27 15:14:26,785 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 122560 states. [2019-12-27 15:14:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand 122560 states. [2019-12-27 15:14:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 15:14:26,786 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:14:26,786 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:14:26,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:14:26,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:14:26,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1409780448, now seen corresponding path program 1 times [2019-12-27 15:14:26,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:14:26,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402788941] [2019-12-27 15:14:26,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:14:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:14:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:14:26,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402788941] [2019-12-27 15:14:26,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:14:26,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:14:26,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [267828449] [2019-12-27 15:14:26,865 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:14:26,866 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:14:26,867 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 15:14:26,867 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:14:26,867 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:14:26,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:14:26,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:14:26,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:14:26,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:14:26,868 INFO L87 Difference]: Start difference. First operand 122560 states. Second operand 5 states. [2019-12-27 15:14:32,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:14:32,265 INFO L93 Difference]: Finished difference Result 171945 states and 934587 transitions. [2019-12-27 15:14:32,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:14:32,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 15:14:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:14:32,972 INFO L225 Difference]: With dead ends: 171945 [2019-12-27 15:14:32,973 INFO L226 Difference]: Without dead ends: 171945 [2019-12-27 15:14:32,973 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:14:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171945 states. [2019-12-27 15:14:39,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171945 to 121401. [2019-12-27 15:14:39,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121401 states. [2019-12-27 15:14:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121401 states to 121401 states and 677935 transitions. [2019-12-27 15:14:46,370 INFO L78 Accepts]: Start accepts. Automaton has 121401 states and 677935 transitions. Word has length 8 [2019-12-27 15:14:46,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:14:46,370 INFO L462 AbstractCegarLoop]: Abstraction has 121401 states and 677935 transitions. [2019-12-27 15:14:46,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:14:46,371 INFO L276 IsEmpty]: Start isEmpty. Operand 121401 states and 677935 transitions. [2019-12-27 15:14:46,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 15:14:46,371 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:14:46,371 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:14:46,371 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:14:46,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:14:46,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1339475468, now seen corresponding path program 1 times [2019-12-27 15:14:46,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:14:46,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082569187] [2019-12-27 15:14:46,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:14:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:14:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:14:46,433 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082569187] [2019-12-27 15:14:46,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:14:46,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:14:46,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1982502589] [2019-12-27 15:14:46,434 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:14:46,435 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:14:46,436 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 15:14:46,436 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:14:46,436 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:14:46,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:14:46,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:14:46,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:14:46,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:14:46,440 INFO L87 Difference]: Start difference. First operand 121401 states and 677935 transitions. Second operand 5 states. [2019-12-27 15:14:55,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:14:55,418 INFO L93 Difference]: Finished difference Result 225123 states and 1226858 transitions. [2019-12-27 15:14:55,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:14:55,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 15:14:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:14:56,278 INFO L225 Difference]: With dead ends: 225123 [2019-12-27 15:14:56,279 INFO L226 Difference]: Without dead ends: 225123 [2019-12-27 15:14:56,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:15:04,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225123 states. [2019-12-27 15:15:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225123 to 145541. [2019-12-27 15:15:08,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145541 states. [2019-12-27 15:15:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145541 states to 145541 states and 810530 transitions. [2019-12-27 15:15:09,266 INFO L78 Accepts]: Start accepts. Automaton has 145541 states and 810530 transitions. Word has length 11 [2019-12-27 15:15:09,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:09,266 INFO L462 AbstractCegarLoop]: Abstraction has 145541 states and 810530 transitions. [2019-12-27 15:15:09,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:15:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 145541 states and 810530 transitions. [2019-12-27 15:15:09,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 15:15:09,267 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:09,267 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:09,268 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:09,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:09,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1216352125, now seen corresponding path program 1 times [2019-12-27 15:15:09,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:09,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325578805] [2019-12-27 15:15:09,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 15:15:09,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325578805] [2019-12-27 15:15:09,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:09,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:15:09,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1617260447] [2019-12-27 15:15:09,332 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:09,333 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:09,334 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 14 transitions. [2019-12-27 15:15:09,334 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:09,334 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:15:09,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:15:09,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:09,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:15:09,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:15:09,335 INFO L87 Difference]: Start difference. First operand 145541 states and 810530 transitions. Second operand 5 states. [2019-12-27 15:15:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:21,769 INFO L93 Difference]: Finished difference Result 251766 states and 1364647 transitions. [2019-12-27 15:15:21,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:15:21,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 15:15:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:22,835 INFO L225 Difference]: With dead ends: 251766 [2019-12-27 15:15:22,835 INFO L226 Difference]: Without dead ends: 251766 [2019-12-27 15:15:22,835 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:15:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251766 states. [2019-12-27 15:15:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251766 to 177964. [2019-12-27 15:15:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177964 states. [2019-12-27 15:15:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177964 states to 177964 states and 988924 transitions. [2019-12-27 15:15:31,784 INFO L78 Accepts]: Start accepts. Automaton has 177964 states and 988924 transitions. Word has length 14 [2019-12-27 15:15:31,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:31,784 INFO L462 AbstractCegarLoop]: Abstraction has 177964 states and 988924 transitions. [2019-12-27 15:15:31,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:15:31,784 INFO L276 IsEmpty]: Start isEmpty. Operand 177964 states and 988924 transitions. [2019-12-27 15:15:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:15:31,786 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:31,786 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:31,786 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:31,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2098773287, now seen corresponding path program 1 times [2019-12-27 15:15:31,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:31,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049058745] [2019-12-27 15:15:31,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:15:31,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049058745] [2019-12-27 15:15:31,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:31,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:15:31,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1204899890] [2019-12-27 15:15:31,825 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:31,827 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:31,828 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 21 transitions. [2019-12-27 15:15:31,829 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:31,830 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:15:31,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 15:15:31,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:31,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 15:15:31,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:15:31,832 INFO L87 Difference]: Start difference. First operand 177964 states and 988924 transitions. Second operand 3 states. [2019-12-27 15:15:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:38,375 INFO L93 Difference]: Finished difference Result 35467 states and 149439 transitions. [2019-12-27 15:15:38,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 15:15:38,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-27 15:15:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:38,514 INFO L225 Difference]: With dead ends: 35467 [2019-12-27 15:15:38,514 INFO L226 Difference]: Without dead ends: 35467 [2019-12-27 15:15:38,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 15:15:38,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35467 states. [2019-12-27 15:15:39,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35467 to 35467. [2019-12-27 15:15:39,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35467 states. [2019-12-27 15:15:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35467 states to 35467 states and 149439 transitions. [2019-12-27 15:15:39,773 INFO L78 Accepts]: Start accepts. Automaton has 35467 states and 149439 transitions. Word has length 15 [2019-12-27 15:15:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:39,774 INFO L462 AbstractCegarLoop]: Abstraction has 35467 states and 149439 transitions. [2019-12-27 15:15:39,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 15:15:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 35467 states and 149439 transitions. [2019-12-27 15:15:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:15:39,775 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:39,775 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:39,775 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:39,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1856571253, now seen corresponding path program 2 times [2019-12-27 15:15:39,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:39,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645553417] [2019-12-27 15:15:39,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:15:39,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645553417] [2019-12-27 15:15:39,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:39,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 15:15:39,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1335213621] [2019-12-27 15:15:39,904 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:39,906 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:39,908 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 28 states and 39 transitions. [2019-12-27 15:15:39,908 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:39,909 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 6 times. [2019-12-27 15:15:39,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:15:39,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:39,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:15:39,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:15:39,910 INFO L87 Difference]: Start difference. First operand 35467 states and 149439 transitions. Second operand 7 states. [2019-12-27 15:15:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:40,927 INFO L93 Difference]: Finished difference Result 90439 states and 391911 transitions. [2019-12-27 15:15:40,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 15:15:40,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-27 15:15:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:41,189 INFO L225 Difference]: With dead ends: 90439 [2019-12-27 15:15:41,190 INFO L226 Difference]: Without dead ends: 90439 [2019-12-27 15:15:41,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-27 15:15:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90439 states. [2019-12-27 15:15:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90439 to 35375. [2019-12-27 15:15:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35375 states. [2019-12-27 15:15:43,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35375 states to 35375 states and 149293 transitions. [2019-12-27 15:15:43,271 INFO L78 Accepts]: Start accepts. Automaton has 35375 states and 149293 transitions. Word has length 15 [2019-12-27 15:15:43,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:43,271 INFO L462 AbstractCegarLoop]: Abstraction has 35375 states and 149293 transitions. [2019-12-27 15:15:43,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:15:43,271 INFO L276 IsEmpty]: Start isEmpty. Operand 35375 states and 149293 transitions. [2019-12-27 15:15:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 15:15:43,272 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:43,272 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:43,272 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:43,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1556559509, now seen corresponding path program 3 times [2019-12-27 15:15:43,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:43,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368992284] [2019-12-27 15:15:43,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:43,599 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-12-27 15:15:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:15:43,640 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368992284] [2019-12-27 15:15:43,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:43,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 15:15:43,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [731765119] [2019-12-27 15:15:43,641 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:43,642 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:43,644 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 16 states and 15 transitions. [2019-12-27 15:15:43,644 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:43,644 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:15:43,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:15:43,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:43,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:15:43,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:15:43,646 INFO L87 Difference]: Start difference. First operand 35375 states and 149293 transitions. Second operand 7 states. [2019-12-27 15:15:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:44,379 INFO L93 Difference]: Finished difference Result 70173 states and 303708 transitions. [2019-12-27 15:15:44,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:15:44,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-27 15:15:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:44,581 INFO L225 Difference]: With dead ends: 70173 [2019-12-27 15:15:44,581 INFO L226 Difference]: Without dead ends: 70173 [2019-12-27 15:15:44,582 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-27 15:15:45,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70173 states. [2019-12-27 15:15:46,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70173 to 34217. [2019-12-27 15:15:46,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34217 states. [2019-12-27 15:15:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34217 states to 34217 states and 144870 transitions. [2019-12-27 15:15:46,312 INFO L78 Accepts]: Start accepts. Automaton has 34217 states and 144870 transitions. Word has length 15 [2019-12-27 15:15:46,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:46,313 INFO L462 AbstractCegarLoop]: Abstraction has 34217 states and 144870 transitions. [2019-12-27 15:15:46,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:15:46,313 INFO L276 IsEmpty]: Start isEmpty. Operand 34217 states and 144870 transitions. [2019-12-27 15:15:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 15:15:46,314 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:46,314 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:46,314 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:46,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:46,314 INFO L82 PathProgramCache]: Analyzing trace with hash 343618584, now seen corresponding path program 1 times [2019-12-27 15:15:46,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:46,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128439387] [2019-12-27 15:15:46,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-12-27 15:15:46,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128439387] [2019-12-27 15:15:46,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:46,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 15:15:46,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [957579310] [2019-12-27 15:15:46,378 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:46,380 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:46,381 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 17 transitions. [2019-12-27 15:15:46,381 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:46,381 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:15:46,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 15:15:46,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:46,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 15:15:46,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 15:15:46,383 INFO L87 Difference]: Start difference. First operand 34217 states and 144870 transitions. Second operand 5 states. [2019-12-27 15:15:46,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:46,789 INFO L93 Difference]: Finished difference Result 55805 states and 237802 transitions. [2019-12-27 15:15:46,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 15:15:46,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-12-27 15:15:46,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:46,946 INFO L225 Difference]: With dead ends: 55805 [2019-12-27 15:15:46,946 INFO L226 Difference]: Without dead ends: 55805 [2019-12-27 15:15:46,946 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:15:47,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55805 states. [2019-12-27 15:15:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55805 to 35097. [2019-12-27 15:15:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35097 states. [2019-12-27 15:15:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35097 states to 35097 states and 148158 transitions. [2019-12-27 15:15:51,337 INFO L78 Accepts]: Start accepts. Automaton has 35097 states and 148158 transitions. Word has length 17 [2019-12-27 15:15:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:51,337 INFO L462 AbstractCegarLoop]: Abstraction has 35097 states and 148158 transitions. [2019-12-27 15:15:51,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 15:15:51,337 INFO L276 IsEmpty]: Start isEmpty. Operand 35097 states and 148158 transitions. [2019-12-27 15:15:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 15:15:51,338 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:51,338 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:51,338 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:51,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:51,339 INFO L82 PathProgramCache]: Analyzing trace with hash -313386450, now seen corresponding path program 1 times [2019-12-27 15:15:51,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:51,339 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280948519] [2019-12-27 15:15:51,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 15:15:51,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280948519] [2019-12-27 15:15:51,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:51,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 15:15:51,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [56653526] [2019-12-27 15:15:51,441 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:51,443 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:51,448 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 43 states and 66 transitions. [2019-12-27 15:15:51,448 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:51,452 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-27 15:15:51,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:15:51,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:51,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:15:51,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:15:51,453 INFO L87 Difference]: Start difference. First operand 35097 states and 148158 transitions. Second operand 7 states. [2019-12-27 15:15:52,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:52,436 INFO L93 Difference]: Finished difference Result 88162 states and 380607 transitions. [2019-12-27 15:15:52,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 15:15:52,437 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 15:15:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:52,689 INFO L225 Difference]: With dead ends: 88162 [2019-12-27 15:15:52,689 INFO L226 Difference]: Without dead ends: 88162 [2019-12-27 15:15:52,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2019-12-27 15:15:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88162 states. [2019-12-27 15:15:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88162 to 35703. [2019-12-27 15:15:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35703 states. [2019-12-27 15:15:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35703 states to 35703 states and 150675 transitions. [2019-12-27 15:15:54,553 INFO L78 Accepts]: Start accepts. Automaton has 35703 states and 150675 transitions. Word has length 18 [2019-12-27 15:15:54,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:54,553 INFO L462 AbstractCegarLoop]: Abstraction has 35703 states and 150675 transitions. [2019-12-27 15:15:54,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:15:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 35703 states and 150675 transitions. [2019-12-27 15:15:54,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 15:15:54,555 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:54,555 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:54,555 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:54,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1790004250, now seen corresponding path program 1 times [2019-12-27 15:15:54,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:54,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413036928] [2019-12-27 15:15:54,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:15:54,932 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413036928] [2019-12-27 15:15:54,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196640459] [2019-12-27 15:15:54,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:15:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:54,987 INFO L264 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-27 15:15:54,988 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 15:15:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 15:15:55,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 15:15:55,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2019-12-27 15:15:55,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1962148333] [2019-12-27 15:15:55,055 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:55,057 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:55,059 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 31 states and 42 transitions. [2019-12-27 15:15:55,060 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:55,060 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:15:55,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:15:55,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:55,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:15:55,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-12-27 15:15:55,061 INFO L87 Difference]: Start difference. First operand 35703 states and 150675 transitions. Second operand 7 states. [2019-12-27 15:15:56,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:56,073 INFO L93 Difference]: Finished difference Result 91794 states and 397264 transitions. [2019-12-27 15:15:56,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 15:15:56,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 15:15:56,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:56,336 INFO L225 Difference]: With dead ends: 91794 [2019-12-27 15:15:56,336 INFO L226 Difference]: Without dead ends: 91794 [2019-12-27 15:15:56,337 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2019-12-27 15:15:57,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91794 states. [2019-12-27 15:15:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91794 to 36207. [2019-12-27 15:15:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36207 states. [2019-12-27 15:15:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36207 states to 36207 states and 152670 transitions. [2019-12-27 15:15:58,441 INFO L78 Accepts]: Start accepts. Automaton has 36207 states and 152670 transitions. Word has length 18 [2019-12-27 15:15:58,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:15:58,441 INFO L462 AbstractCegarLoop]: Abstraction has 36207 states and 152670 transitions. [2019-12-27 15:15:58,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:15:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 36207 states and 152670 transitions. [2019-12-27 15:15:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 15:15:58,443 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:15:58,443 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:15:58,646 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:15:58,647 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:15:58,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:15:58,648 INFO L82 PathProgramCache]: Analyzing trace with hash 512797580, now seen corresponding path program 2 times [2019-12-27 15:15:58,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:15:58,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861780150] [2019-12-27 15:15:58,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:15:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:15:59,058 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 15:15:59,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861780150] [2019-12-27 15:15:59,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:15:59,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 15:15:59,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1246024263] [2019-12-27 15:15:59,059 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:15:59,060 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:15:59,061 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 15:15:59,061 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:15:59,061 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:15:59,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:15:59,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:15:59,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:15:59,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:15:59,062 INFO L87 Difference]: Start difference. First operand 36207 states and 152670 transitions. Second operand 7 states. [2019-12-27 15:15:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:15:59,661 INFO L93 Difference]: Finished difference Result 67519 states and 290934 transitions. [2019-12-27 15:15:59,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:15:59,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 15:15:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:15:59,851 INFO L225 Difference]: With dead ends: 67519 [2019-12-27 15:15:59,851 INFO L226 Difference]: Without dead ends: 67519 [2019-12-27 15:15:59,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-27 15:16:00,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67519 states. [2019-12-27 15:16:01,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67519 to 35426. [2019-12-27 15:16:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35426 states. [2019-12-27 15:16:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35426 states to 35426 states and 149680 transitions. [2019-12-27 15:16:01,642 INFO L78 Accepts]: Start accepts. Automaton has 35426 states and 149680 transitions. Word has length 18 [2019-12-27 15:16:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:16:01,642 INFO L462 AbstractCegarLoop]: Abstraction has 35426 states and 149680 transitions. [2019-12-27 15:16:01,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:16:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 35426 states and 149680 transitions. [2019-12-27 15:16:01,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 15:16:01,643 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:16:01,644 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:16:01,644 INFO L410 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:16:01,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:16:01,644 INFO L82 PathProgramCache]: Analyzing trace with hash 500391628, now seen corresponding path program 2 times [2019-12-27 15:16:01,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:16:01,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114598120] [2019-12-27 15:16:01,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:16:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:16:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-12-27 15:16:01,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114598120] [2019-12-27 15:16:01,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:16:01,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 15:16:01,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [460303157] [2019-12-27 15:16:01,762 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 15:16:01,764 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 15:16:01,766 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 19 states and 18 transitions. [2019-12-27 15:16:01,766 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 15:16:01,767 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 15:16:01,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 15:16:01,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:16:01,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 15:16:01,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 15:16:01,768 INFO L87 Difference]: Start difference. First operand 35426 states and 149680 transitions. Second operand 7 states. [2019-12-27 15:16:02,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:16:02,419 INFO L93 Difference]: Finished difference Result 69197 states and 298524 transitions. [2019-12-27 15:16:02,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:16:02,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 15:16:02,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:16:02,614 INFO L225 Difference]: With dead ends: 69197 [2019-12-27 15:16:02,614 INFO L226 Difference]: Without dead ends: 69197 [2019-12-27 15:16:02,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-27 15:16:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69197 states. [2019-12-27 15:16:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69197 to 34696. [2019-12-27 15:16:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34696 states. [2019-12-27 15:16:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34696 states to 34696 states and 146832 transitions. [2019-12-27 15:16:04,388 INFO L78 Accepts]: Start accepts. Automaton has 34696 states and 146832 transitions. Word has length 18 [2019-12-27 15:16:04,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:16:04,388 INFO L462 AbstractCegarLoop]: Abstraction has 34696 states and 146832 transitions. [2019-12-27 15:16:04,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 15:16:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 34696 states and 146832 transitions. [2019-12-27 15:16:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 15:16:04,390 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:16:04,390 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:16:04,390 INFO L410 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:16:04,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:16:04,390 INFO L82 PathProgramCache]: Analyzing trace with hash -782396544, now seen corresponding path program 1 times [2019-12-27 15:16:04,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:16:04,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406915059] [2019-12-27 15:16:04,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:16:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:16:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:16:04,416 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:16:04,416 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:16:04,416 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:16:04,416 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-27 15:16:04,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,425 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,425 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,426 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,427 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,428 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,428 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,429 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,430 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,430 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,431 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,432 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,432 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,433 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,434 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,434 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,435 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,435 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,436 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,437 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,437 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,439 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,439 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,439 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,439 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,439 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,445 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,445 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,448 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,450 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,450 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,451 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,451 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,451 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,452 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,452 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,453 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,453 WARN L315 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,453 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:16:04,454 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 15:16:04,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:16:04,454 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:16:04,455 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:16:04,455 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 15:16:04,455 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:16:04,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:16:04,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:16:04,455 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:16:04,456 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions [2019-12-27 15:16:04,456 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions [2019-12-27 15:16:04,478 INFO L132 PetriNetUnfolder]: 19/155 cut-off events. [2019-12-27 15:16:04,478 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 15:16:04,482 INFO L76 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 449 event pairs. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2019-12-27 15:16:04,493 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions [2019-12-27 15:16:04,515 INFO L132 PetriNetUnfolder]: 19/155 cut-off events. [2019-12-27 15:16:04,515 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 15:16:04,519 INFO L76 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 449 event pairs. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2019-12-27 15:16:04,530 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7020 [2019-12-27 15:16:04,530 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 15:16:06,616 INFO L206 etLargeBlockEncoding]: Checked pairs total: 22314 [2019-12-27 15:16:06,617 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-12-27 15:16:06,619 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 54 transitions Received shutdown request... [2019-12-27 15:17:02,752 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 15:17:02,754 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 15:17:02,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:17:02 BasicIcfg [2019-12-27 15:17:02,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 15:17:02,757 INFO L168 Benchmark]: Toolchain (without parser) took 212692.31 ms. Allocated memory was 145.2 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 100.6 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,757 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.87 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.4 MB in the beginning and 161.0 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.37 ms. Allocated memory is still 201.3 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,759 INFO L168 Benchmark]: Boogie Preprocessor took 31.56 ms. Allocated memory is still 201.3 MB. Free memory was 159.0 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,759 INFO L168 Benchmark]: RCFGBuilder took 375.53 ms. Allocated memory is still 201.3 MB. Free memory was 157.6 MB in the beginning and 141.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,760 INFO L168 Benchmark]: TraceAbstraction took 211501.61 ms. Allocated memory was 201.3 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 141.0 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2019-12-27 15:17:02,763 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.87 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.4 MB in the beginning and 161.0 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.37 ms. Allocated memory is still 201.3 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.56 ms. Allocated memory is still 201.3 MB. Free memory was 159.0 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 375.53 ms. Allocated memory is still 201.3 MB. Free memory was 157.6 MB in the beginning and 141.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211501.61 ms. Allocated memory was 201.3 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 141.0 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 32 ProgramPointsBefore, 9 ProgramPointsAfterwards, 32 TransitionsBefore, 8 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 123 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 191 CheckedPairsTotal, 30 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 46 ProgramPointsBefore, 22 ProgramPointsAfterwards, 46 TransitionsBefore, 22 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 463 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2180 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 60 ProgramPointsBefore, 30 ProgramPointsAfterwards, 60 TransitionsBefore, 30 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 888 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 5122 CheckedPairsTotal, 34 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 74 ProgramPointsBefore, 37 ProgramPointsAfterwards, 74 TransitionsBefore, 37 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 5 ChoiceCompositions, 1464 VarBasedMoverChecksPositive, 78 VarBasedMoverChecksNegative, 45 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 9341 CheckedPairsTotal, 42 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 88 ProgramPointsBefore, 47 ProgramPointsAfterwards, 88 TransitionsBefore, 47 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 6 FixpointIterations, 7 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 2183 VarBasedMoverChecksPositive, 184 VarBasedMoverChecksNegative, 139 SemBasedMoverChecksPositive, 78 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 17447 CheckedPairsTotal, 51 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 102 ProgramPointsBefore, 54 ProgramPointsAfterwards, 102 TransitionsBefore, 54 TransitionsAfterwards, 7020 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 7 ChoiceCompositions, 3584 VarBasedMoverChecksPositive, 168 VarBasedMoverChecksNegative, 119 SemBasedMoverChecksPositive, 118 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.1s, 0 MoverChecksTotal, 22314 CheckedPairsTotal, 56 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 695]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 695). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 54 places, 54 transitions. Already constructed 161429 states. Currently 43563 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Result: TIMEOUT, OverallTime: 58.2s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown