/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-ext/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:46:08,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:46:08,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:46:08,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:46:08,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:46:08,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:46:08,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:46:08,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:46:08,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:46:08,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:46:08,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:46:08,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:46:08,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:46:08,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:46:08,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:46:08,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:46:08,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:46:08,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:46:08,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:46:08,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:46:08,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:46:08,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:46:08,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:46:08,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:46:08,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:46:08,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:46:08,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:46:08,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:46:08,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:46:08,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:46:08,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:46:08,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:46:08,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:46:08,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:46:08,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:46:08,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:46:08,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:46:08,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:46:08,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:46:08,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:46:08,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:46:08,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:46:08,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:46:08,814 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:46:08,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:46:08,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:46:08,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:46:08,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:46:08,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:46:08,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:46:08,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:46:08,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:46:08,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:46:08,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:46:08,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:46:08,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:46:08,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:46:08,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:46:08,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:46:08,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:46:08,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:46:08,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:46:08,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:46:08,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:46:08,820 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:46:08,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:46:09,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:46:09,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:46:09,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:46:09,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:46:09,168 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:46:09,168 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-16 11:46:09,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b7423191/9a696a456de34cd7b53edc97dc3a1005/FLAG00a593454 [2020-10-16 11:46:09,819 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:46:09,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-16 11:46:09,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b7423191/9a696a456de34cd7b53edc97dc3a1005/FLAG00a593454 [2020-10-16 11:46:10,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4b7423191/9a696a456de34cd7b53edc97dc3a1005 [2020-10-16 11:46:10,085 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:46:10,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:46:10,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:46:10,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:46:10,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:46:10,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e524c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10, skipping insertion in model container [2020-10-16 11:46:10,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:46:10,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:46:10,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:46:10,599 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:46:10,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:46:10,757 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:46:10,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10 WrapperNode [2020-10-16 11:46:10,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:46:10,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:46:10,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:46:10,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:46:10,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:46:10,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:46:10,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:46:10,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:46:10,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... [2020-10-16 11:46:10,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:46:10,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:46:10,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:46:10,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:46:10,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:46:10,889 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 11:46:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 11:46:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:46:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:46:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:46:10,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:46:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:46:10,891 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:46:11,227 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:46:11,228 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-16 11:46:11,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:46:11 BoogieIcfgContainer [2020-10-16 11:46:11,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:46:11,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:46:11,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:46:11,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:46:11,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:46:10" (1/3) ... [2020-10-16 11:46:11,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ecd655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:46:11, skipping insertion in model container [2020-10-16 11:46:11,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:46:10" (2/3) ... [2020-10-16 11:46:11,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ecd655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:46:11, skipping insertion in model container [2020-10-16 11:46:11,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:46:11" (3/3) ... [2020-10-16 11:46:11,240 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2020-10-16 11:46:11,256 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:46:11,257 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:46:11,264 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:46:11,266 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:46:11,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:11,305 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:11,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 11:46:11,338 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:11,339 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:11,339 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:11,339 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:11,339 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:11,339 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:11,339 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:11,339 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:11,349 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:11,350 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions, 69 flow [2020-10-16 11:46:11,352 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 32 transitions, 69 flow [2020-10-16 11:46:11,354 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions, 69 flow [2020-10-16 11:46:11,389 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2020-10-16 11:46:11,389 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:46:11,394 INFO L80 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 4. Compared 56 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2020-10-16 11:46:11,395 INFO L117 LiptonReduction]: Number of co-enabled transitions 260 [2020-10-16 11:46:12,194 INFO L132 LiptonReduction]: Checked pairs total: 259 [2020-10-16 11:46:12,194 INFO L134 LiptonReduction]: Total number of compositions: 30 [2020-10-16 11:46:12,202 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow [2020-10-16 11:46:12,213 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states. [2020-10-16 11:46:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-16 11:46:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 11:46:12,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:12,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 11:46:12,223 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:12,230 INFO L82 PathProgramCache]: Analyzing trace with hash 168321027, now seen corresponding path program 1 times [2020-10-16 11:46:12,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:12,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119347487] [2020-10-16 11:46:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:12,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119347487] [2020-10-16 11:46:12,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:12,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:46:12,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256970509] [2020-10-16 11:46:12,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:46:12,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:12,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:46:12,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:12,545 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-10-16 11:46:12,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:12,580 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2020-10-16 11:46:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:46:12,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-16 11:46:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:12,594 INFO L225 Difference]: With dead ends: 23 [2020-10-16 11:46:12,595 INFO L226 Difference]: Without dead ends: 23 [2020-10-16 11:46:12,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-16 11:46:12,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-16 11:46:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-16 11:46:12,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2020-10-16 11:46:12,639 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 5 [2020-10-16 11:46:12,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:12,639 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2020-10-16 11:46:12,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:46:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-10-16 11:46:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:46:12,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:12,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 11:46:12,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:46:12,641 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:12,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:12,642 INFO L82 PathProgramCache]: Analyzing trace with hash 922984961, now seen corresponding path program 1 times [2020-10-16 11:46:12,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:12,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163259724] [2020-10-16 11:46:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:12,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163259724] [2020-10-16 11:46:12,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:12,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:46:12,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566151805] [2020-10-16 11:46:12,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:46:12,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:12,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:46:12,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:12,746 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 3 states. [2020-10-16 11:46:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:12,770 INFO L93 Difference]: Finished difference Result 19 states and 31 transitions. [2020-10-16 11:46:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:46:12,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 11:46:12,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:12,773 INFO L225 Difference]: With dead ends: 19 [2020-10-16 11:46:12,773 INFO L226 Difference]: Without dead ends: 19 [2020-10-16 11:46:12,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:46:12,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-16 11:46:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2020-10-16 11:46:12,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-16 11:46:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2020-10-16 11:46:12,778 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 6 [2020-10-16 11:46:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:12,779 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-10-16 11:46:12,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:46:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2020-10-16 11:46:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 11:46:12,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:12,780 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-16 11:46:12,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:46:12,781 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:12,781 INFO L82 PathProgramCache]: Analyzing trace with hash 922916027, now seen corresponding path program 1 times [2020-10-16 11:46:12,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:12,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727866272] [2020-10-16 11:46:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:12,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:12,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:12,836 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:46:12,836 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:46:12,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:46:12,838 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 11:46:12,839 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-16 11:46:12,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:12,866 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:12,867 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:46:12,867 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:12,867 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:12,867 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:12,868 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:12,868 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:12,868 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:12,868 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:12,868 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:12,871 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:12,871 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions, 104 flow [2020-10-16 11:46:12,871 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 46 transitions, 104 flow [2020-10-16 11:46:12,872 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 104 flow [2020-10-16 11:46:12,901 INFO L129 PetriNetUnfolder]: 7/63 cut-off events. [2020-10-16 11:46:12,901 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 11:46:12,904 INFO L80 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 6. Compared 138 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2020-10-16 11:46:12,906 INFO L117 LiptonReduction]: Number of co-enabled transitions 884 [2020-10-16 11:46:13,428 INFO L132 LiptonReduction]: Checked pairs total: 2012 [2020-10-16 11:46:13,429 INFO L134 LiptonReduction]: Total number of compositions: 30 [2020-10-16 11:46:13,429 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 23 transitions, 58 flow [2020-10-16 11:46:13,444 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 277 states. [2020-10-16 11:46:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-10-16 11:46:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:46:13,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:13,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:13,446 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:13,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:13,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1178921566, now seen corresponding path program 1 times [2020-10-16 11:46:13,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:13,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422083354] [2020-10-16 11:46:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:13,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422083354] [2020-10-16 11:46:13,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:13,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:13,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117111704] [2020-10-16 11:46:13,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:13,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:13,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:13,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:13,520 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 5 states. [2020-10-16 11:46:13,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:13,600 INFO L93 Difference]: Finished difference Result 318 states and 849 transitions. [2020-10-16 11:46:13,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:13,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-16 11:46:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:13,608 INFO L225 Difference]: With dead ends: 318 [2020-10-16 11:46:13,609 INFO L226 Difference]: Without dead ends: 318 [2020-10-16 11:46:13,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-16 11:46:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 266. [2020-10-16 11:46:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-16 11:46:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 710 transitions. [2020-10-16 11:46:13,652 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 710 transitions. Word has length 7 [2020-10-16 11:46:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:13,653 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 710 transitions. [2020-10-16 11:46:13,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:46:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 710 transitions. [2020-10-16 11:46:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:46:13,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:13,657 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-16 11:46:13,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:46:13,658 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:13,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:13,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1370674461, now seen corresponding path program 1 times [2020-10-16 11:46:13,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:13,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672856010] [2020-10-16 11:46:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:13,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:13,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:13,709 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:46:13,709 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:46:13,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:46:13,710 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 11:46:13,713 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-16 11:46:13,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,732 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,737 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,738 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,738 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,738 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,749 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,750 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,750 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,750 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,751 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,751 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,753 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,753 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,754 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,754 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:13,755 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:13,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 11:46:13,756 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:13,756 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:13,756 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:13,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:13,756 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:13,756 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:13,757 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:13,757 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:13,758 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:13,758 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 141 flow [2020-10-16 11:46:13,758 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 141 flow [2020-10-16 11:46:13,759 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 141 flow [2020-10-16 11:46:13,792 INFO L129 PetriNetUnfolder]: 10/86 cut-off events. [2020-10-16 11:46:13,792 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 11:46:13,794 INFO L80 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 229 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2020-10-16 11:46:13,797 INFO L117 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-16 11:46:14,415 INFO L132 LiptonReduction]: Checked pairs total: 4216 [2020-10-16 11:46:14,415 INFO L134 LiptonReduction]: Total number of compositions: 42 [2020-10-16 11:46:14,416 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 28 transitions, 77 flow [2020-10-16 11:46:14,487 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1456 states. [2020-10-16 11:46:14,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states. [2020-10-16 11:46:14,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:46:14,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:14,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:14,489 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:14,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:14,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1539237464, now seen corresponding path program 1 times [2020-10-16 11:46:14,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:14,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070447377] [2020-10-16 11:46:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:14,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070447377] [2020-10-16 11:46:14,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:14,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:14,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723109994] [2020-10-16 11:46:14,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:14,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:14,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:14,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:14,548 INFO L87 Difference]: Start difference. First operand 1456 states. Second operand 5 states. [2020-10-16 11:46:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:14,631 INFO L93 Difference]: Finished difference Result 1766 states and 6426 transitions. [2020-10-16 11:46:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:14,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-16 11:46:14,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:14,650 INFO L225 Difference]: With dead ends: 1766 [2020-10-16 11:46:14,651 INFO L226 Difference]: Without dead ends: 1766 [2020-10-16 11:46:14,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2020-10-16 11:46:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1375. [2020-10-16 11:46:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1375 states. [2020-10-16 11:46:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 5020 transitions. [2020-10-16 11:46:14,757 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 5020 transitions. Word has length 7 [2020-10-16 11:46:14,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:14,758 INFO L481 AbstractCegarLoop]: Abstraction has 1375 states and 5020 transitions. [2020-10-16 11:46:14,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:46:14,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 5020 transitions. [2020-10-16 11:46:14,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:46:14,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:14,761 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:14,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:46:14,761 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:14,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:14,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1738474935, now seen corresponding path program 1 times [2020-10-16 11:46:14,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:14,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935220099] [2020-10-16 11:46:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:14,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935220099] [2020-10-16 11:46:14,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:14,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:14,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112744419] [2020-10-16 11:46:14,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:46:14,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:14,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:46:14,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:14,882 INFO L87 Difference]: Start difference. First operand 1375 states and 5020 transitions. Second operand 4 states. [2020-10-16 11:46:15,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:15,015 INFO L93 Difference]: Finished difference Result 1759 states and 6445 transitions. [2020-10-16 11:46:15,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:46:15,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:46:15,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:15,032 INFO L225 Difference]: With dead ends: 1759 [2020-10-16 11:46:15,032 INFO L226 Difference]: Without dead ends: 1759 [2020-10-16 11:46:15,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:15,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2020-10-16 11:46:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1457. [2020-10-16 11:46:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2020-10-16 11:46:15,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 5350 transitions. [2020-10-16 11:46:15,135 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 5350 transitions. Word has length 9 [2020-10-16 11:46:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:15,135 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 5350 transitions. [2020-10-16 11:46:15,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:46:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 5350 transitions. [2020-10-16 11:46:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:46:15,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:15,136 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:15,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:46:15,137 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:15,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1957327118, now seen corresponding path program 1 times [2020-10-16 11:46:15,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:15,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837508162] [2020-10-16 11:46:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:46:15,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837508162] [2020-10-16 11:46:15,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:15,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:15,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189848513] [2020-10-16 11:46:15,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:15,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:15,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:15,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:15,187 INFO L87 Difference]: Start difference. First operand 1457 states and 5350 transitions. Second operand 5 states. [2020-10-16 11:46:15,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:15,285 INFO L93 Difference]: Finished difference Result 1901 states and 6945 transitions. [2020-10-16 11:46:15,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:15,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 11:46:15,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:15,303 INFO L225 Difference]: With dead ends: 1901 [2020-10-16 11:46:15,303 INFO L226 Difference]: Without dead ends: 1901 [2020-10-16 11:46:15,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2020-10-16 11:46:15,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1620. [2020-10-16 11:46:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1620 states. [2020-10-16 11:46:15,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 5934 transitions. [2020-10-16 11:46:15,371 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 5934 transitions. Word has length 10 [2020-10-16 11:46:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:15,373 INFO L481 AbstractCegarLoop]: Abstraction has 1620 states and 5934 transitions. [2020-10-16 11:46:15,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:46:15,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 5934 transitions. [2020-10-16 11:46:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:46:15,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:15,375 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-16 11:46:15,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:46:15,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:15,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:15,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1041421678, now seen corresponding path program 1 times [2020-10-16 11:46:15,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:15,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60087229] [2020-10-16 11:46:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:15,385 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:15,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:15,401 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:46:15,402 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:46:15,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:46:15,403 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 11:46:15,403 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-16 11:46:15,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,421 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,423 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,424 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,424 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,424 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,426 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,426 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,427 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,427 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,428 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,428 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,429 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,429 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:15,430 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:15,431 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 11:46:15,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:15,431 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:15,431 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:15,431 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:15,431 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:15,431 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:15,432 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:15,432 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:15,433 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:15,433 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions, 180 flow [2020-10-16 11:46:15,434 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 74 transitions, 180 flow [2020-10-16 11:46:15,434 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions, 180 flow [2020-10-16 11:46:15,451 INFO L129 PetriNetUnfolder]: 13/109 cut-off events. [2020-10-16 11:46:15,452 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 11:46:15,453 INFO L80 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 6. Compared 310 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2020-10-16 11:46:15,458 INFO L117 LiptonReduction]: Number of co-enabled transitions 3224 [2020-10-16 11:46:16,271 INFO L132 LiptonReduction]: Checked pairs total: 6730 [2020-10-16 11:46:16,272 INFO L134 LiptonReduction]: Total number of compositions: 50 [2020-10-16 11:46:16,272 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 106 flow [2020-10-16 11:46:17,179 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 10192 states. [2020-10-16 11:46:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 10192 states. [2020-10-16 11:46:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:46:17,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:17,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:17,181 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:17,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:17,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1561663564, now seen corresponding path program 1 times [2020-10-16 11:46:17,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:17,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612080952] [2020-10-16 11:46:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:17,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612080952] [2020-10-16 11:46:17,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:17,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:17,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748270438] [2020-10-16 11:46:17,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:17,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:17,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:17,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:17,229 INFO L87 Difference]: Start difference. First operand 10192 states. Second operand 5 states. [2020-10-16 11:46:17,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:17,468 INFO L93 Difference]: Finished difference Result 11534 states and 53378 transitions. [2020-10-16 11:46:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:17,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-16 11:46:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:17,580 INFO L225 Difference]: With dead ends: 11534 [2020-10-16 11:46:17,580 INFO L226 Difference]: Without dead ends: 11534 [2020-10-16 11:46:17,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11534 states. [2020-10-16 11:46:18,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11534 to 9067. [2020-10-16 11:46:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9067 states. [2020-10-16 11:46:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9067 states to 9067 states and 42125 transitions. [2020-10-16 11:46:18,231 INFO L78 Accepts]: Start accepts. Automaton has 9067 states and 42125 transitions. Word has length 7 [2020-10-16 11:46:18,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:18,232 INFO L481 AbstractCegarLoop]: Abstraction has 9067 states and 42125 transitions. [2020-10-16 11:46:18,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:46:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9067 states and 42125 transitions. [2020-10-16 11:46:18,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:46:18,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:18,233 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:18,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 11:46:18,233 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:18,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:18,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1815072708, now seen corresponding path program 1 times [2020-10-16 11:46:18,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:18,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713467827] [2020-10-16 11:46:18,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:18,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713467827] [2020-10-16 11:46:18,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:18,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:18,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29912998] [2020-10-16 11:46:18,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:46:18,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:18,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:46:18,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:18,283 INFO L87 Difference]: Start difference. First operand 9067 states and 42125 transitions. Second operand 4 states. [2020-10-16 11:46:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:19,323 INFO L93 Difference]: Finished difference Result 12520 states and 58238 transitions. [2020-10-16 11:46:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:46:19,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:46:19,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:19,399 INFO L225 Difference]: With dead ends: 12520 [2020-10-16 11:46:19,399 INFO L226 Difference]: Without dead ends: 12520 [2020-10-16 11:46:19,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:19,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12520 states. [2020-10-16 11:46:19,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12520 to 10682. [2020-10-16 11:46:19,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10682 states. [2020-10-16 11:46:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10682 states to 10682 states and 49749 transitions. [2020-10-16 11:46:20,095 INFO L78 Accepts]: Start accepts. Automaton has 10682 states and 49749 transitions. Word has length 9 [2020-10-16 11:46:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:20,095 INFO L481 AbstractCegarLoop]: Abstraction has 10682 states and 49749 transitions. [2020-10-16 11:46:20,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:46:20,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10682 states and 49749 transitions. [2020-10-16 11:46:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:46:20,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:20,099 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:20,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 11:46:20,100 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:20,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:20,100 INFO L82 PathProgramCache]: Analyzing trace with hash 577393655, now seen corresponding path program 1 times [2020-10-16 11:46:20,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:20,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731694097] [2020-10-16 11:46:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:20,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:46:20,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731694097] [2020-10-16 11:46:20,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:20,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:20,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295900745] [2020-10-16 11:46:20,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:20,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:20,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:20,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:20,148 INFO L87 Difference]: Start difference. First operand 10682 states and 49749 transitions. Second operand 5 states. [2020-10-16 11:46:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:20,413 INFO L93 Difference]: Finished difference Result 13403 states and 62165 transitions. [2020-10-16 11:46:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:20,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 11:46:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:20,527 INFO L225 Difference]: With dead ends: 13403 [2020-10-16 11:46:20,528 INFO L226 Difference]: Without dead ends: 13403 [2020-10-16 11:46:20,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:20,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13403 states. [2020-10-16 11:46:21,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13403 to 11379. [2020-10-16 11:46:21,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11379 states. [2020-10-16 11:46:21,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11379 states to 11379 states and 52902 transitions. [2020-10-16 11:46:21,216 INFO L78 Accepts]: Start accepts. Automaton has 11379 states and 52902 transitions. Word has length 10 [2020-10-16 11:46:21,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:21,216 INFO L481 AbstractCegarLoop]: Abstraction has 11379 states and 52902 transitions. [2020-10-16 11:46:21,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:46:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 11379 states and 52902 transitions. [2020-10-16 11:46:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:46:21,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:21,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:21,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 11:46:21,220 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:21,221 INFO L82 PathProgramCache]: Analyzing trace with hash 824499625, now seen corresponding path program 1 times [2020-10-16 11:46:21,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:21,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067168470] [2020-10-16 11:46:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:46:21,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067168470] [2020-10-16 11:46:21,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:21,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:21,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817321474] [2020-10-16 11:46:21,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:46:21,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:21,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:46:21,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:21,273 INFO L87 Difference]: Start difference. First operand 11379 states and 52902 transitions. Second operand 4 states. [2020-10-16 11:46:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:21,544 INFO L93 Difference]: Finished difference Result 14883 states and 69291 transitions. [2020-10-16 11:46:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:46:21,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:46:21,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:21,628 INFO L225 Difference]: With dead ends: 14883 [2020-10-16 11:46:21,628 INFO L226 Difference]: Without dead ends: 14883 [2020-10-16 11:46:21,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14883 states. [2020-10-16 11:46:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14883 to 13161. [2020-10-16 11:46:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13161 states. [2020-10-16 11:46:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13161 states to 13161 states and 61372 transitions. [2020-10-16 11:46:22,461 INFO L78 Accepts]: Start accepts. Automaton has 13161 states and 61372 transitions. Word has length 12 [2020-10-16 11:46:22,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:22,463 INFO L481 AbstractCegarLoop]: Abstraction has 13161 states and 61372 transitions. [2020-10-16 11:46:22,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:46:22,463 INFO L276 IsEmpty]: Start isEmpty. Operand 13161 states and 61372 transitions. [2020-10-16 11:46:22,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:46:22,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:22,464 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:22,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 11:46:22,464 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:22,465 INFO L82 PathProgramCache]: Analyzing trace with hash -862865239, now seen corresponding path program 1 times [2020-10-16 11:46:22,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:22,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76674524] [2020-10-16 11:46:22,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:22,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76674524] [2020-10-16 11:46:22,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381669272] [2020-10-16 11:46:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:46:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:22,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 11:46:22,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 11:46:22,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:22,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 11:46:22,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-16 11:46:22,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398203487] [2020-10-16 11:46:22,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:46:22,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:22,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:46:22,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:46:22,669 INFO L87 Difference]: Start difference. First operand 13161 states and 61372 transitions. Second operand 6 states. [2020-10-16 11:46:22,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:22,816 INFO L93 Difference]: Finished difference Result 2267 states and 8210 transitions. [2020-10-16 11:46:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:46:22,816 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-16 11:46:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:22,826 INFO L225 Difference]: With dead ends: 2267 [2020-10-16 11:46:22,827 INFO L226 Difference]: Without dead ends: 2267 [2020-10-16 11:46:22,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:46:22,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2020-10-16 11:46:22,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 1856. [2020-10-16 11:46:22,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1856 states. [2020-10-16 11:46:22,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 6612 transitions. [2020-10-16 11:46:22,886 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 6612 transitions. Word has length 13 [2020-10-16 11:46:22,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:22,887 INFO L481 AbstractCegarLoop]: Abstraction has 1856 states and 6612 transitions. [2020-10-16 11:46:22,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:46:22,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 6612 transitions. [2020-10-16 11:46:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:46:22,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:22,888 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:23,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-16 11:46:23,102 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:23,102 INFO L82 PathProgramCache]: Analyzing trace with hash 274936257, now seen corresponding path program 1 times [2020-10-16 11:46:23,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:23,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414454389] [2020-10-16 11:46:23,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:23,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 11:46:23,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414454389] [2020-10-16 11:46:23,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:23,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:23,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73730819] [2020-10-16 11:46:23,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:23,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:23,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:23,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:23,144 INFO L87 Difference]: Start difference. First operand 1856 states and 6612 transitions. Second operand 5 states. [2020-10-16 11:46:23,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:23,216 INFO L93 Difference]: Finished difference Result 3101 states and 11085 transitions. [2020-10-16 11:46:23,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:23,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:46:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:23,228 INFO L225 Difference]: With dead ends: 3101 [2020-10-16 11:46:23,228 INFO L226 Difference]: Without dead ends: 3101 [2020-10-16 11:46:23,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2020-10-16 11:46:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2126. [2020-10-16 11:46:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2020-10-16 11:46:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 7602 transitions. [2020-10-16 11:46:23,298 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 7602 transitions. Word has length 13 [2020-10-16 11:46:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:23,298 INFO L481 AbstractCegarLoop]: Abstraction has 2126 states and 7602 transitions. [2020-10-16 11:46:23,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:46:23,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 7602 transitions. [2020-10-16 11:46:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:46:23,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:23,300 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:23,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 11:46:23,300 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:23,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2074233969, now seen corresponding path program 1 times [2020-10-16 11:46:23,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:23,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505033508] [2020-10-16 11:46:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:23,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 11:46:23,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505033508] [2020-10-16 11:46:23,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:23,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:23,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471630504] [2020-10-16 11:46:23,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:46:23,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:23,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:46:23,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:23,348 INFO L87 Difference]: Start difference. First operand 2126 states and 7602 transitions. Second operand 4 states. [2020-10-16 11:46:25,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:25,467 INFO L93 Difference]: Finished difference Result 1991 states and 7107 transitions. [2020-10-16 11:46:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:46:25,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 11:46:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:25,474 INFO L225 Difference]: With dead ends: 1991 [2020-10-16 11:46:25,474 INFO L226 Difference]: Without dead ends: 1991 [2020-10-16 11:46:25,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:46:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-16 11:46:25,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2020-10-16 11:46:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2020-10-16 11:46:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 7107 transitions. [2020-10-16 11:46:25,534 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 7107 transitions. Word has length 15 [2020-10-16 11:46:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:46:25,534 INFO L481 AbstractCegarLoop]: Abstraction has 1991 states and 7107 transitions. [2020-10-16 11:46:25,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:46:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 7107 transitions. [2020-10-16 11:46:25,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:46:25,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:25,536 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:25,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 11:46:25,536 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 11:46:25,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:25,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1295544518, now seen corresponding path program 1 times [2020-10-16 11:46:25,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:25,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413933399] [2020-10-16 11:46:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:25,549 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:46:25,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:46:25,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:46:25,574 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:46:25,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 11:46:25,575 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 11:46:25,575 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-16 11:46:25,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,879 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,879 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:46:25,880 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:46:25,880 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 11:46:25,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:46:25,880 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:46:25,880 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:46:25,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:46:25,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:46:25,881 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:46:25,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:46:25,881 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:46:25,883 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:46:25,883 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions, 221 flow [2020-10-16 11:46:25,883 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 88 transitions, 221 flow [2020-10-16 11:46:25,884 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 221 flow [2020-10-16 11:46:25,909 INFO L129 PetriNetUnfolder]: 16/132 cut-off events. [2020-10-16 11:46:25,909 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 11:46:25,912 INFO L80 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 6. Compared 397 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2020-10-16 11:46:25,917 INFO L117 LiptonReduction]: Number of co-enabled transitions 4940 [2020-10-16 11:46:26,968 INFO L132 LiptonReduction]: Checked pairs total: 13501 [2020-10-16 11:46:26,969 INFO L134 LiptonReduction]: Total number of compositions: 57 [2020-10-16 11:46:26,969 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 48 transitions, 141 flow [2020-10-16 11:46:53,007 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 81638 states. [2020-10-16 11:46:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 81638 states. [2020-10-16 11:46:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 11:46:53,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:46:53,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:46:53,008 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:46:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:46:53,008 INFO L82 PathProgramCache]: Analyzing trace with hash -664909556, now seen corresponding path program 1 times [2020-10-16 11:46:53,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:46:53,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049250571] [2020-10-16 11:46:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:46:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:46:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:46:53,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049250571] [2020-10-16 11:46:53,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:46:53,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:46:53,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704009179] [2020-10-16 11:46:53,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:46:53,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:46:53,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:46:53,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:53,073 INFO L87 Difference]: Start difference. First operand 81638 states. Second operand 5 states. [2020-10-16 11:46:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:46:56,450 INFO L93 Difference]: Finished difference Result 82196 states and 463471 transitions. [2020-10-16 11:46:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:46:56,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-16 11:46:56,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:46:56,802 INFO L225 Difference]: With dead ends: 82196 [2020-10-16 11:46:56,803 INFO L226 Difference]: Without dead ends: 82196 [2020-10-16 11:46:56,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:46:58,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82196 states. [2020-10-16 11:47:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82196 to 69058. [2020-10-16 11:47:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69058 states. [2020-10-16 11:47:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69058 states to 69058 states and 390504 transitions. [2020-10-16 11:47:01,149 INFO L78 Accepts]: Start accepts. Automaton has 69058 states and 390504 transitions. Word has length 7 [2020-10-16 11:47:01,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:01,149 INFO L481 AbstractCegarLoop]: Abstraction has 69058 states and 390504 transitions. [2020-10-16 11:47:01,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:47:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 69058 states and 390504 transitions. [2020-10-16 11:47:01,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:47:01,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:01,150 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:01,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 11:47:01,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:01,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:01,151 INFO L82 PathProgramCache]: Analyzing trace with hash 972030566, now seen corresponding path program 1 times [2020-10-16 11:47:01,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:01,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213064045] [2020-10-16 11:47:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:01,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:47:01,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213064045] [2020-10-16 11:47:01,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:01,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:47:01,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634361689] [2020-10-16 11:47:01,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:47:01,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:01,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:47:01,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:47:01,205 INFO L87 Difference]: Start difference. First operand 69058 states and 390504 transitions. Second operand 4 states. [2020-10-16 11:47:06,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:06,546 INFO L93 Difference]: Finished difference Result 94621 states and 535383 transitions. [2020-10-16 11:47:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:47:06,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:47:06,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:06,989 INFO L225 Difference]: With dead ends: 94621 [2020-10-16 11:47:06,989 INFO L226 Difference]: Without dead ends: 94621 [2020-10-16 11:47:06,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:47:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94621 states. [2020-10-16 11:47:11,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94621 to 83246. [2020-10-16 11:47:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83246 states. [2020-10-16 11:47:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83246 states to 83246 states and 471320 transitions. [2020-10-16 11:47:11,717 INFO L78 Accepts]: Start accepts. Automaton has 83246 states and 471320 transitions. Word has length 9 [2020-10-16 11:47:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:11,717 INFO L481 AbstractCegarLoop]: Abstraction has 83246 states and 471320 transitions. [2020-10-16 11:47:11,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:47:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 83246 states and 471320 transitions. [2020-10-16 11:47:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:47:11,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:11,718 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:11,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 11:47:11,718 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:11,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:11,719 INFO L82 PathProgramCache]: Analyzing trace with hash 2020420234, now seen corresponding path program 1 times [2020-10-16 11:47:11,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:11,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469894313] [2020-10-16 11:47:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:47:11,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469894313] [2020-10-16 11:47:11,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:11,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:47:11,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468423604] [2020-10-16 11:47:11,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:47:11,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:11,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:47:11,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:11,802 INFO L87 Difference]: Start difference. First operand 83246 states and 471320 transitions. Second operand 5 states. [2020-10-16 11:47:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:12,643 INFO L93 Difference]: Finished difference Result 98498 states and 556042 transitions. [2020-10-16 11:47:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:47:12,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-16 11:47:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:13,122 INFO L225 Difference]: With dead ends: 98498 [2020-10-16 11:47:13,122 INFO L226 Difference]: Without dead ends: 98498 [2020-10-16 11:47:13,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:20,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98498 states. [2020-10-16 11:47:22,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98498 to 86145. [2020-10-16 11:47:22,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86145 states. [2020-10-16 11:47:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86145 states to 86145 states and 487242 transitions. [2020-10-16 11:47:22,630 INFO L78 Accepts]: Start accepts. Automaton has 86145 states and 487242 transitions. Word has length 10 [2020-10-16 11:47:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:22,631 INFO L481 AbstractCegarLoop]: Abstraction has 86145 states and 487242 transitions. [2020-10-16 11:47:22,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:47:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 86145 states and 487242 transitions. [2020-10-16 11:47:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:47:22,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:22,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:22,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 11:47:22,632 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:22,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:22,632 INFO L82 PathProgramCache]: Analyzing trace with hash 298657665, now seen corresponding path program 1 times [2020-10-16 11:47:22,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:22,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667185317] [2020-10-16 11:47:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:47:22,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667185317] [2020-10-16 11:47:22,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:22,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:47:22,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293843925] [2020-10-16 11:47:22,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:47:22,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:22,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:47:22,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:47:22,712 INFO L87 Difference]: Start difference. First operand 86145 states and 487242 transitions. Second operand 4 states. [2020-10-16 11:47:24,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:24,840 INFO L93 Difference]: Finished difference Result 123764 states and 700267 transitions. [2020-10-16 11:47:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:47:24,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:47:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:25,381 INFO L225 Difference]: With dead ends: 123764 [2020-10-16 11:47:25,381 INFO L226 Difference]: Without dead ends: 123764 [2020-10-16 11:47:25,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:47:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123764 states. [2020-10-16 11:47:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123764 to 108992. [2020-10-16 11:47:35,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108992 states. [2020-10-16 11:47:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108992 states to 108992 states and 617126 transitions. [2020-10-16 11:47:37,494 INFO L78 Accepts]: Start accepts. Automaton has 108992 states and 617126 transitions. Word has length 12 [2020-10-16 11:47:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:37,495 INFO L481 AbstractCegarLoop]: Abstraction has 108992 states and 617126 transitions. [2020-10-16 11:47:37,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:47:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 108992 states and 617126 transitions. [2020-10-16 11:47:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:47:37,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:37,496 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:37,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 11:47:37,496 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1372403915, now seen corresponding path program 1 times [2020-10-16 11:47:37,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:37,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240921161] [2020-10-16 11:47:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 11:47:37,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240921161] [2020-10-16 11:47:37,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:37,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:47:37,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560259045] [2020-10-16 11:47:37,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:47:37,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:37,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:47:37,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:37,587 INFO L87 Difference]: Start difference. First operand 108992 states and 617126 transitions. Second operand 5 states. [2020-10-16 11:47:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:39,061 INFO L93 Difference]: Finished difference Result 121705 states and 687683 transitions. [2020-10-16 11:47:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:47:39,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:47:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:39,582 INFO L225 Difference]: With dead ends: 121705 [2020-10-16 11:47:39,582 INFO L226 Difference]: Without dead ends: 121705 [2020-10-16 11:47:39,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121705 states. [2020-10-16 11:47:50,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121705 to 111117. [2020-10-16 11:47:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111117 states. [2020-10-16 11:47:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111117 states to 111117 states and 628451 transitions. [2020-10-16 11:47:51,250 INFO L78 Accepts]: Start accepts. Automaton has 111117 states and 628451 transitions. Word has length 13 [2020-10-16 11:47:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:51,250 INFO L481 AbstractCegarLoop]: Abstraction has 111117 states and 628451 transitions. [2020-10-16 11:47:51,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:47:51,250 INFO L276 IsEmpty]: Start isEmpty. Operand 111117 states and 628451 transitions. [2020-10-16 11:47:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:47:51,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:51,251 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:51,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 11:47:51,252 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:51,252 INFO L82 PathProgramCache]: Analyzing trace with hash 667954930, now seen corresponding path program 1 times [2020-10-16 11:47:51,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:51,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556810653] [2020-10-16 11:47:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 11:47:51,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556810653] [2020-10-16 11:47:51,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:51,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:47:51,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728505200] [2020-10-16 11:47:51,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:47:51,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:51,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:47:51,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:51,312 INFO L87 Difference]: Start difference. First operand 111117 states and 628451 transitions. Second operand 5 states. [2020-10-16 11:47:51,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:51,480 INFO L93 Difference]: Finished difference Result 10054 states and 42885 transitions. [2020-10-16 11:47:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:47:51,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:47:51,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:51,506 INFO L225 Difference]: With dead ends: 10054 [2020-10-16 11:47:51,506 INFO L226 Difference]: Without dead ends: 10054 [2020-10-16 11:47:51,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:51,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10054 states. [2020-10-16 11:47:51,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10054 to 8563. [2020-10-16 11:47:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2020-10-16 11:47:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 36301 transitions. [2020-10-16 11:47:51,752 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 36301 transitions. Word has length 13 [2020-10-16 11:47:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:51,752 INFO L481 AbstractCegarLoop]: Abstraction has 8563 states and 36301 transitions. [2020-10-16 11:47:51,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:47:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 36301 transitions. [2020-10-16 11:47:51,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:47:51,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:51,754 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:51,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 11:47:51,754 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:51,754 INFO L82 PathProgramCache]: Analyzing trace with hash 325204049, now seen corresponding path program 1 times [2020-10-16 11:47:51,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:51,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611715806] [2020-10-16 11:47:51,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 11:47:51,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611715806] [2020-10-16 11:47:51,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:51,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:47:51,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360815621] [2020-10-16 11:47:51,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:47:51,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:51,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:47:51,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:47:51,820 INFO L87 Difference]: Start difference. First operand 8563 states and 36301 transitions. Second operand 4 states. [2020-10-16 11:47:51,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:51,969 INFO L93 Difference]: Finished difference Result 7699 states and 32611 transitions. [2020-10-16 11:47:51,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:47:51,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 11:47:51,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:51,998 INFO L225 Difference]: With dead ends: 7699 [2020-10-16 11:47:51,998 INFO L226 Difference]: Without dead ends: 7699 [2020-10-16 11:47:51,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:47:52,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2020-10-16 11:47:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 6835. [2020-10-16 11:47:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6835 states. [2020-10-16 11:47:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6835 states to 6835 states and 28921 transitions. [2020-10-16 11:47:52,228 INFO L78 Accepts]: Start accepts. Automaton has 6835 states and 28921 transitions. Word has length 15 [2020-10-16 11:47:52,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:52,228 INFO L481 AbstractCegarLoop]: Abstraction has 6835 states and 28921 transitions. [2020-10-16 11:47:52,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:47:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 6835 states and 28921 transitions. [2020-10-16 11:47:52,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-16 11:47:52,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:52,230 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:52,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 11:47:52,231 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:52,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:52,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1000706857, now seen corresponding path program 1 times [2020-10-16 11:47:52,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:52,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871854745] [2020-10-16 11:47:52,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:47:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-16 11:47:52,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871854745] [2020-10-16 11:47:52,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:47:52,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:47:52,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240831513] [2020-10-16 11:47:52,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:47:52,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:47:52,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:47:52,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:52,292 INFO L87 Difference]: Start difference. First operand 6835 states and 28921 transitions. Second operand 5 states. [2020-10-16 11:47:52,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:47:52,464 INFO L93 Difference]: Finished difference Result 11770 states and 49873 transitions. [2020-10-16 11:47:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:47:52,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-16 11:47:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:47:52,494 INFO L225 Difference]: With dead ends: 11770 [2020-10-16 11:47:52,494 INFO L226 Difference]: Without dead ends: 11770 [2020-10-16 11:47:52,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:47:52,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11770 states. [2020-10-16 11:47:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11770 to 7645. [2020-10-16 11:47:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7645 states. [2020-10-16 11:47:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7645 states to 7645 states and 32431 transitions. [2020-10-16 11:47:53,898 INFO L78 Accepts]: Start accepts. Automaton has 7645 states and 32431 transitions. Word has length 16 [2020-10-16 11:47:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:47:53,899 INFO L481 AbstractCegarLoop]: Abstraction has 7645 states and 32431 transitions. [2020-10-16 11:47:53,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:47:53,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7645 states and 32431 transitions. [2020-10-16 11:47:53,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 11:47:53,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:47:53,901 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:47:53,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 11:47:53,902 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:47:53,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:47:53,902 INFO L82 PathProgramCache]: Analyzing trace with hash -82755358, now seen corresponding path program 1 times [2020-10-16 11:47:53,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:47:53,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924134469] [2020-10-16 11:47:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:47:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:47:53,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:47:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:47:53,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:47:53,921 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:47:53,921 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:47:53,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 11:47:53,922 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 11:47:53,922 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-16 11:47:53,930 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,931 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,931 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,932 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,932 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,933 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,933 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,936 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,938 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,938 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,938 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,938 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,938 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,938 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,939 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,940 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,941 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,942 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,942 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,943 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,943 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,944 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,951 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,951 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,951 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,955 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,956 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,958 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,958 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,959 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,959 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,959 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,959 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:47:53,960 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:47:53,960 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 11:47:53,961 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:47:53,961 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:47:53,961 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:47:53,961 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:47:53,961 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:47:53,961 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:47:53,961 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:47:53,961 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:47:53,963 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:47:53,963 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions, 264 flow [2020-10-16 11:47:53,963 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 102 transitions, 264 flow [2020-10-16 11:47:53,963 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 264 flow [2020-10-16 11:47:53,981 INFO L129 PetriNetUnfolder]: 19/155 cut-off events. [2020-10-16 11:47:53,982 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 11:47:53,983 INFO L80 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 6. Compared 468 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2020-10-16 11:47:53,991 INFO L117 LiptonReduction]: Number of co-enabled transitions 7020 [2020-10-16 11:47:55,154 INFO L132 LiptonReduction]: Checked pairs total: 21560 [2020-10-16 11:47:55,154 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-16 11:47:55,154 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 58 transitions, 176 flow Received shutdown request... [2020-10-16 11:50:10,327 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 11:50:10,329 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 11:50:10,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:50:10 BasicIcfg [2020-10-16 11:50:10,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:50:10,332 INFO L168 Benchmark]: Toolchain (without parser) took 240245.04 ms. Allocated memory was 140.0 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 101.8 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2020-10-16 11:50:10,333 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:50:10,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.31 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 101.6 MB in the beginning and 161.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:50:10,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.89 ms. Allocated memory is still 202.4 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:50:10,335 INFO L168 Benchmark]: Boogie Preprocessor took 24.47 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:50:10,335 INFO L168 Benchmark]: RCFGBuilder took 400.39 ms. Allocated memory is still 202.4 MB. Free memory was 158.3 MB in the beginning and 138.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:50:10,336 INFO L168 Benchmark]: TraceAbstraction took 239097.34 ms. Allocated memory was 202.4 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 137.4 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2020-10-16 11:50:10,340 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.31 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 101.6 MB in the beginning and 161.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.89 ms. Allocated memory is still 202.4 MB. Free memory was 161.6 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.47 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 158.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 400.39 ms. Allocated memory is still 202.4 MB. Free memory was 158.3 MB in the beginning and 138.0 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239097.34 ms. Allocated memory was 202.4 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 137.4 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 129 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 32 PlacesBefore, 12 PlacesAfterwards, 32 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 30 TotalNumberOfCompositions, 259 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 468 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 89 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.5s, 46 PlacesBefore, 24 PlacesAfterwards, 46 TransitionsBefore, 23 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 30 TotalNumberOfCompositions, 2012 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 929 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 118 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 60 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 28 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 42 TotalNumberOfCompositions, 4216 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1563 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 213 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 74 PlacesBefore, 40 PlacesAfterwards, 74 TransitionsBefore, 37 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 50 TotalNumberOfCompositions, 6730 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2377 VarBasedMoverChecksPositive, 65 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 327 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 88 PlacesBefore, 50 PlacesAfterwards, 88 TransitionsBefore, 48 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 57 TotalNumberOfCompositions, 13501 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3559 VarBasedMoverChecksPositive, 85 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 508 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 102 PlacesBefore, 59 PlacesAfterwards, 102 TransitionsBefore, 58 TransitionsAfterwards, 7020 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 67 TotalNumberOfCompositions, 21560 MoverChecksTotal - TimeoutResultAtElement [Line: 690]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 690). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 59 places, 58 transitions, 176 flow. Already constructed 178931 states. Currently 44759 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 238.5s, OverallIterations: 26, TraceHistogramMax: 6, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 167.4s, HoareTripleCheckerStatistics: 1135 SDtfs, 918 SDslu, 1498 SDs, 0 SdLazy, 1560 SolverSat, 102 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111117occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 47.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 79173 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 12976 SizeOfPredicates, 1 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 70/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown