/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:38:16,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:38:16,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:38:16,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-27 00:38:16,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:38:16,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:38:16,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:38:16,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-27 00:38:16,170 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:38:16,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:38:16,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:38:16,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:38:16,171 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:38:16,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:38:16,172 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:38:16,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:38:16,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:38:16,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:38:16,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:38:16,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:38:16,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:38:16,173 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:38:16,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:38:16,173 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:38:16,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:38:16,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:38:16,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:38:16,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:38:16,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:38:16,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:38:16,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:38:16,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:38:16,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:38:16,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:38:16,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:38:16,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:38:16,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:38:16,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:38:16,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:38:16,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:38:16,468 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:38:16,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:38:16,470 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:38:16,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i [2019-12-27 00:38:16,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3076028c4/6a8fa4c1ecc24ce1a1da231fa2086e36/FLAG9c1f14d5b [2019-12-27 00:38:17,047 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:38:17,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-variant-2.i [2019-12-27 00:38:17,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3076028c4/6a8fa4c1ecc24ce1a1da231fa2086e36/FLAG9c1f14d5b [2019-12-27 00:38:17,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3076028c4/6a8fa4c1ecc24ce1a1da231fa2086e36 [2019-12-27 00:38:17,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:38:17,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:38:17,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:38:17,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:38:17,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:38:17,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:38:17" (1/1) ... [2019-12-27 00:38:17,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d67792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:17, skipping insertion in model container [2019-12-27 00:38:17,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:38:17" (1/1) ... [2019-12-27 00:38:17,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:38:17,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:38:17,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:38:17,980 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:38:18,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:38:18,130 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:38:18,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18 WrapperNode [2019-12-27 00:38:18,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:38:18,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:38:18,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:38:18,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:38:18,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:38:18,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:38:18,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:38:18,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:38:18,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... [2019-12-27 00:38:18,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:38:18,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:38:18,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:38:18,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:38:18,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:38:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 00:38:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 00:38:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 00:38:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 00:38:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:38:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 00:38:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:38:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:38:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 00:38:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:38:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:38:18,286 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:38:18,680 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:38:18,680 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 00:38:18,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:38:18 BoogieIcfgContainer [2019-12-27 00:38:18,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:38:18,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:38:18,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:38:18,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:38:18,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:38:17" (1/3) ... [2019-12-27 00:38:18,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f04936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:38:18, skipping insertion in model container [2019-12-27 00:38:18,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:38:18" (2/3) ... [2019-12-27 00:38:18,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f04936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:38:18, skipping insertion in model container [2019-12-27 00:38:18,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:38:18" (3/3) ... [2019-12-27 00:38:18,691 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-2.i [2019-12-27 00:38:18,702 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:38:18,702 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:38:18,711 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:38:18,712 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:38:18,750 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,750 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,751 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,751 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,751 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,752 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,752 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,752 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,753 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,753 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,753 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,754 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,754 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,755 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,755 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,756 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,756 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,757 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,757 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,757 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,758 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,758 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,758 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,759 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,760 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,765 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,765 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,766 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,766 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,766 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,766 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,767 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,767 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,782 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,782 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,783 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,783 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,784 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,785 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:18,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:38:18,822 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:38:18,822 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:38:18,822 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:38:18,822 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:38:18,822 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:38:18,822 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:38:18,823 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:38:18,823 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:38:18,837 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions [2019-12-27 00:38:18,839 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 00:38:18,891 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 00:38:18,891 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:38:18,898 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 00:38:18,902 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions [2019-12-27 00:38:18,927 INFO L132 PetriNetUnfolder]: 4/76 cut-off events. [2019-12-27 00:38:18,927 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:38:18,929 INFO L76 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 76 events. 4/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs. 0/69 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2019-12-27 00:38:18,931 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 992 [2019-12-27 00:38:18,933 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:38:21,138 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 00:38:21,265 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 00:38:21,268 INFO L206 etLargeBlockEncoding]: Checked pairs total: 729 [2019-12-27 00:38:21,269 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2019-12-27 00:38:21,272 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 12 transitions [2019-12-27 00:38:21,282 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2019-12-27 00:38:21,284 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-27 00:38:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 00:38:21,289 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:21,290 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 00:38:21,291 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:21,297 INFO L82 PathProgramCache]: Analyzing trace with hash 259287, now seen corresponding path program 1 times [2019-12-27 00:38:21,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:21,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808530371] [2019-12-27 00:38:21,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:21,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808530371] [2019-12-27 00:38:21,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:21,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:38:21,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214416045] [2019-12-27 00:38:21,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:38:21,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:21,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:38:21,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:21,522 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2019-12-27 00:38:21,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:21,578 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2019-12-27 00:38:21,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:38:21,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 00:38:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:21,605 INFO L225 Difference]: With dead ends: 35 [2019-12-27 00:38:21,605 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 00:38:21,610 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:21,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 00:38:21,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 00:38:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 00:38:21,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2019-12-27 00:38:21,641 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2019-12-27 00:38:21,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:21,642 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2019-12-27 00:38:21,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:38:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2019-12-27 00:38:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 00:38:21,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:21,643 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:21,643 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:21,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:21,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1095237165, now seen corresponding path program 1 times [2019-12-27 00:38:21,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:21,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675015844] [2019-12-27 00:38:21,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:21,800 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675015844] [2019-12-27 00:38:21,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:21,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:38:21,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922279222] [2019-12-27 00:38:21,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:38:21,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:21,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:38:21,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:38:21,803 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2019-12-27 00:38:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:21,832 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2019-12-27 00:38:21,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:38:21,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-27 00:38:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:21,833 INFO L225 Difference]: With dead ends: 26 [2019-12-27 00:38:21,834 INFO L226 Difference]: Without dead ends: 24 [2019-12-27 00:38:21,834 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:38:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-27 00:38:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-27 00:38:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-27 00:38:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2019-12-27 00:38:21,839 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2019-12-27 00:38:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:21,840 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2019-12-27 00:38:21,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:38:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2019-12-27 00:38:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:38:21,841 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:21,841 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:21,841 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:21,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:21,842 INFO L82 PathProgramCache]: Analyzing trace with hash 407361282, now seen corresponding path program 1 times [2019-12-27 00:38:21,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:21,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898864827] [2019-12-27 00:38:21,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:38:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:38:21,918 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:38:21,918 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:38:21,919 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:38:21,919 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 00:38:21,929 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,929 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,929 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,930 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,930 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,930 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,930 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,930 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,931 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,931 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,931 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,931 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,931 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,932 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,932 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,932 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,932 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,932 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,933 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,933 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,933 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,933 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,933 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,934 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,934 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,934 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,934 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,934 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,934 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,935 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,935 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,936 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,936 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,936 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,937 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,937 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,937 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,938 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,938 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,938 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,938 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,938 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,938 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,939 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,940 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,940 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,940 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,941 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,941 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,943 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,943 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,943 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,943 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,943 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,943 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,944 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,944 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,945 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,946 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,946 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,948 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,948 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,948 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,949 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,949 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:21,954 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 00:38:21,954 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:38:21,954 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:38:21,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:38:21,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:38:21,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:38:21,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:38:21,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:38:21,955 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:38:21,958 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 90 transitions [2019-12-27 00:38:21,958 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 00:38:22,004 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 00:38:22,004 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:38:22,010 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 00:38:22,018 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 90 transitions [2019-12-27 00:38:22,059 INFO L132 PetriNetUnfolder]: 6/105 cut-off events. [2019-12-27 00:38:22,060 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:38:22,066 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 105 events. 6/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs. 0/95 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2019-12-27 00:38:22,070 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2024 [2019-12-27 00:38:22,070 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:38:23,972 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 00:38:24,103 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 00:38:24,412 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2019-12-27 00:38:24,552 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 00:38:24,559 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2838 [2019-12-27 00:38:24,559 INFO L214 etLargeBlockEncoding]: Total number of compositions: 69 [2019-12-27 00:38:24,560 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 29 transitions [2019-12-27 00:38:24,600 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 755 states. [2019-12-27 00:38:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states. [2019-12-27 00:38:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 00:38:24,601 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:24,601 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 00:38:24,601 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:24,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:24,602 INFO L82 PathProgramCache]: Analyzing trace with hash 443582, now seen corresponding path program 1 times [2019-12-27 00:38:24,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:24,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465991613] [2019-12-27 00:38:24,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:24,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:24,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465991613] [2019-12-27 00:38:24,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:24,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:38:24,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174940984] [2019-12-27 00:38:24,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:38:24,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:24,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:38:24,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:24,669 INFO L87 Difference]: Start difference. First operand 755 states. Second operand 3 states. [2019-12-27 00:38:24,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:24,740 INFO L93 Difference]: Finished difference Result 893 states and 2840 transitions. [2019-12-27 00:38:24,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:38:24,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 00:38:24,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:24,764 INFO L225 Difference]: With dead ends: 893 [2019-12-27 00:38:24,764 INFO L226 Difference]: Without dead ends: 825 [2019-12-27 00:38:24,765 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:24,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-12-27 00:38:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 728. [2019-12-27 00:38:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-27 00:38:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2380 transitions. [2019-12-27 00:38:24,876 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2380 transitions. Word has length 3 [2019-12-27 00:38:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:24,876 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2380 transitions. [2019-12-27 00:38:24,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:38:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2380 transitions. [2019-12-27 00:38:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:38:24,877 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:24,877 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:24,878 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:24,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:24,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1277587267, now seen corresponding path program 1 times [2019-12-27 00:38:24,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:24,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223031054] [2019-12-27 00:38:24,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:24,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:24,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223031054] [2019-12-27 00:38:24,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:24,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:24,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502016881] [2019-12-27 00:38:24,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:24,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:24,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:24,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:24,956 INFO L87 Difference]: Start difference. First operand 728 states and 2380 transitions. Second operand 5 states. [2019-12-27 00:38:25,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:25,086 INFO L93 Difference]: Finished difference Result 1107 states and 3359 transitions. [2019-12-27 00:38:25,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:25,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 00:38:25,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:25,099 INFO L225 Difference]: With dead ends: 1107 [2019-12-27 00:38:25,099 INFO L226 Difference]: Without dead ends: 1092 [2019-12-27 00:38:25,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-12-27 00:38:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 655. [2019-12-27 00:38:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-12-27 00:38:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2145 transitions. [2019-12-27 00:38:25,169 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2145 transitions. Word has length 10 [2019-12-27 00:38:25,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:25,170 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 2145 transitions. [2019-12-27 00:38:25,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2145 transitions. [2019-12-27 00:38:25,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:38:25,172 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:25,173 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:25,173 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:25,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:25,173 INFO L82 PathProgramCache]: Analyzing trace with hash 230062385, now seen corresponding path program 1 times [2019-12-27 00:38:25,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:25,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617734969] [2019-12-27 00:38:25,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:38:25,230 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617734969] [2019-12-27 00:38:25,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:25,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:25,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473975763] [2019-12-27 00:38:25,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:25,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:25,232 INFO L87 Difference]: Start difference. First operand 655 states and 2145 transitions. Second operand 5 states. [2019-12-27 00:38:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:25,352 INFO L93 Difference]: Finished difference Result 1068 states and 3229 transitions. [2019-12-27 00:38:25,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:25,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:38:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:25,364 INFO L225 Difference]: With dead ends: 1068 [2019-12-27 00:38:25,365 INFO L226 Difference]: Without dead ends: 1046 [2019-12-27 00:38:25,366 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2019-12-27 00:38:25,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 630. [2019-12-27 00:38:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-12-27 00:38:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 2011 transitions. [2019-12-27 00:38:25,392 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 2011 transitions. Word has length 14 [2019-12-27 00:38:25,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:25,393 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 2011 transitions. [2019-12-27 00:38:25,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:25,394 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 2011 transitions. [2019-12-27 00:38:25,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:38:25,402 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:25,402 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:25,402 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:25,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:25,402 INFO L82 PathProgramCache]: Analyzing trace with hash 226307167, now seen corresponding path program 1 times [2019-12-27 00:38:25,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:25,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881182302] [2019-12-27 00:38:25,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:38:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:38:25,489 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:38:25,489 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:38:25,489 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:38:25,490 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 00:38:25,505 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,506 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,508 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,508 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,508 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,508 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,508 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,509 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,510 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,510 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,510 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,510 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,511 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,511 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,512 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,512 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,512 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,512 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,512 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,512 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,513 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,513 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,513 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,513 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,513 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,513 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,514 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,514 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,514 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,514 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,514 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,514 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,515 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,515 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,515 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,515 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,515 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,516 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,516 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,516 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,516 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,516 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,516 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,517 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,517 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,517 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,518 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,518 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,518 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,518 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,518 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,518 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,519 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,519 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,519 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,519 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,519 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,520 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,520 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,520 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,521 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,522 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,523 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,523 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,523 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,523 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,523 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,523 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,524 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,525 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,525 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,525 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,526 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,526 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,526 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,526 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,526 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,528 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,528 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,528 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,532 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,533 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,534 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,534 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:25,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 00:38:25,536 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:38:25,536 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:38:25,536 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:38:25,536 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:38:25,536 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:38:25,537 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:38:25,537 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:38:25,537 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:38:25,542 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions [2019-12-27 00:38:25,542 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 00:38:25,585 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 00:38:25,586 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:38:25,589 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 00:38:25,595 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions [2019-12-27 00:38:25,622 INFO L132 PetriNetUnfolder]: 8/134 cut-off events. [2019-12-27 00:38:25,622 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:38:25,625 INFO L76 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 134 events. 8/134 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2019-12-27 00:38:25,632 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3420 [2019-12-27 00:38:25,632 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:38:27,724 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-12-27 00:38:28,007 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2019-12-27 00:38:28,125 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 00:38:28,137 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6734 [2019-12-27 00:38:28,138 INFO L214 etLargeBlockEncoding]: Total number of compositions: 89 [2019-12-27 00:38:28,138 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 40 transitions [2019-12-27 00:38:28,423 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5273 states. [2019-12-27 00:38:28,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states. [2019-12-27 00:38:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 00:38:28,424 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:28,424 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 00:38:28,424 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:28,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:28,424 INFO L82 PathProgramCache]: Analyzing trace with hash 672286, now seen corresponding path program 1 times [2019-12-27 00:38:28,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:28,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547520519] [2019-12-27 00:38:28,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:28,462 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547520519] [2019-12-27 00:38:28,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:28,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:38:28,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194839251] [2019-12-27 00:38:28,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:38:28,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:28,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:38:28,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:28,463 INFO L87 Difference]: Start difference. First operand 5273 states. Second operand 3 states. [2019-12-27 00:38:28,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:28,593 INFO L93 Difference]: Finished difference Result 7407 states and 31211 transitions. [2019-12-27 00:38:28,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:38:28,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 00:38:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:28,672 INFO L225 Difference]: With dead ends: 7407 [2019-12-27 00:38:28,672 INFO L226 Difference]: Without dead ends: 6859 [2019-12-27 00:38:28,672 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2019-12-27 00:38:28,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 5755. [2019-12-27 00:38:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5755 states. [2019-12-27 00:38:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 24922 transitions. [2019-12-27 00:38:29,006 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 24922 transitions. Word has length 3 [2019-12-27 00:38:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:29,007 INFO L462 AbstractCegarLoop]: Abstraction has 5755 states and 24922 transitions. [2019-12-27 00:38:29,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:38:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 24922 transitions. [2019-12-27 00:38:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:38:29,009 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:29,009 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:29,009 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:29,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:29,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2052268641, now seen corresponding path program 1 times [2019-12-27 00:38:29,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:29,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272151649] [2019-12-27 00:38:29,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:29,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272151649] [2019-12-27 00:38:29,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:29,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:29,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929423856] [2019-12-27 00:38:29,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:29,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:29,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:29,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:29,087 INFO L87 Difference]: Start difference. First operand 5755 states and 24922 transitions. Second operand 5 states. [2019-12-27 00:38:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:29,297 INFO L93 Difference]: Finished difference Result 10309 states and 41465 transitions. [2019-12-27 00:38:29,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:29,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 00:38:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:29,366 INFO L225 Difference]: With dead ends: 10309 [2019-12-27 00:38:29,366 INFO L226 Difference]: Without dead ends: 10246 [2019-12-27 00:38:29,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2019-12-27 00:38:30,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 5479. [2019-12-27 00:38:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2019-12-27 00:38:30,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 23676 transitions. [2019-12-27 00:38:30,187 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 23676 transitions. Word has length 10 [2019-12-27 00:38:30,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:30,187 INFO L462 AbstractCegarLoop]: Abstraction has 5479 states and 23676 transitions. [2019-12-27 00:38:30,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:30,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 23676 transitions. [2019-12-27 00:38:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:38:30,189 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:30,189 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:30,189 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:30,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:30,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1690988075, now seen corresponding path program 1 times [2019-12-27 00:38:30,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:30,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879548158] [2019-12-27 00:38:30,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:38:30,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879548158] [2019-12-27 00:38:30,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:30,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:30,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55013018] [2019-12-27 00:38:30,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:30,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:30,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:30,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:30,244 INFO L87 Difference]: Start difference. First operand 5479 states and 23676 transitions. Second operand 5 states. [2019-12-27 00:38:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:30,448 INFO L93 Difference]: Finished difference Result 11134 states and 45075 transitions. [2019-12-27 00:38:30,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:30,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:38:30,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:30,500 INFO L225 Difference]: With dead ends: 11134 [2019-12-27 00:38:30,500 INFO L226 Difference]: Without dead ends: 11059 [2019-12-27 00:38:30,501 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:30,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2019-12-27 00:38:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 5882. [2019-12-27 00:38:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5882 states. [2019-12-27 00:38:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 25395 transitions. [2019-12-27 00:38:30,814 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 25395 transitions. Word has length 14 [2019-12-27 00:38:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:30,814 INFO L462 AbstractCegarLoop]: Abstraction has 5882 states and 25395 transitions. [2019-12-27 00:38:30,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:30,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 25395 transitions. [2019-12-27 00:38:30,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:38:30,816 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:30,817 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:30,817 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:30,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:30,818 INFO L82 PathProgramCache]: Analyzing trace with hash -645314245, now seen corresponding path program 1 times [2019-12-27 00:38:30,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:30,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271509443] [2019-12-27 00:38:30,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:30,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271509443] [2019-12-27 00:38:30,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:30,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:30,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723090054] [2019-12-27 00:38:30,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:38:30,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:30,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:38:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:30,868 INFO L87 Difference]: Start difference. First operand 5882 states and 25395 transitions. Second operand 3 states. [2019-12-27 00:38:30,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:30,907 INFO L93 Difference]: Finished difference Result 2983 states and 10319 transitions. [2019-12-27 00:38:30,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:38:30,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 00:38:30,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:31,009 INFO L225 Difference]: With dead ends: 2983 [2019-12-27 00:38:31,009 INFO L226 Difference]: Without dead ends: 2983 [2019-12-27 00:38:31,010 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2019-12-27 00:38:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2959. [2019-12-27 00:38:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2019-12-27 00:38:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 10243 transitions. [2019-12-27 00:38:31,094 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 10243 transitions. Word has length 17 [2019-12-27 00:38:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:31,095 INFO L462 AbstractCegarLoop]: Abstraction has 2959 states and 10243 transitions. [2019-12-27 00:38:31,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:38:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 10243 transitions. [2019-12-27 00:38:31,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:38:31,097 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:31,097 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:31,097 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:31,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:31,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1331292250, now seen corresponding path program 1 times [2019-12-27 00:38:31,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:31,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537040068] [2019-12-27 00:38:31,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:31,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537040068] [2019-12-27 00:38:31,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131017575] [2019-12-27 00:38:31,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:31,262 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 00:38:31,264 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:38:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:31,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:38:31,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 00:38:31,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703194764] [2019-12-27 00:38:31,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 00:38:31,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:31,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 00:38:31,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 00:38:31,340 INFO L87 Difference]: Start difference. First operand 2959 states and 10243 transitions. Second operand 12 states. [2019-12-27 00:38:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:31,758 INFO L93 Difference]: Finished difference Result 6079 states and 20204 transitions. [2019-12-27 00:38:31,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:38:31,759 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-27 00:38:31,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:31,781 INFO L225 Difference]: With dead ends: 6079 [2019-12-27 00:38:31,781 INFO L226 Difference]: Without dead ends: 6043 [2019-12-27 00:38:31,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 00:38:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6043 states. [2019-12-27 00:38:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6043 to 2725. [2019-12-27 00:38:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2725 states. [2019-12-27 00:38:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 9384 transitions. [2019-12-27 00:38:31,913 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 9384 transitions. Word has length 18 [2019-12-27 00:38:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:31,913 INFO L462 AbstractCegarLoop]: Abstraction has 2725 states and 9384 transitions. [2019-12-27 00:38:31,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 00:38:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 9384 transitions. [2019-12-27 00:38:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:38:31,916 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:31,916 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:32,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:32,131 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:32,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:32,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1022908716, now seen corresponding path program 1 times [2019-12-27 00:38:32,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:32,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745119539] [2019-12-27 00:38:32,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 00:38:32,187 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745119539] [2019-12-27 00:38:32,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:32,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:32,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063672035] [2019-12-27 00:38:32,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:32,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:32,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:32,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:32,188 INFO L87 Difference]: Start difference. First operand 2725 states and 9384 transitions. Second operand 5 states. [2019-12-27 00:38:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:32,322 INFO L93 Difference]: Finished difference Result 5203 states and 17665 transitions. [2019-12-27 00:38:32,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:32,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 00:38:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:32,424 INFO L225 Difference]: With dead ends: 5203 [2019-12-27 00:38:32,424 INFO L226 Difference]: Without dead ends: 5167 [2019-12-27 00:38:32,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2019-12-27 00:38:32,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 2953. [2019-12-27 00:38:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2953 states. [2019-12-27 00:38:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 10213 transitions. [2019-12-27 00:38:32,523 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 10213 transitions. Word has length 18 [2019-12-27 00:38:32,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:32,523 INFO L462 AbstractCegarLoop]: Abstraction has 2953 states and 10213 transitions. [2019-12-27 00:38:32,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 10213 transitions. [2019-12-27 00:38:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:38:32,526 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:32,526 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:32,526 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:38:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:32,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1017797005, now seen corresponding path program 1 times [2019-12-27 00:38:32,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:32,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123708705] [2019-12-27 00:38:32,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:38:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:38:32,557 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:38:32,558 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:38:32,558 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:38:32,558 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 00:38:32,572 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,572 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,572 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,572 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,573 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,574 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,574 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,574 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,574 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,574 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,575 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,577 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,579 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,579 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,581 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,583 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,587 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,587 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,587 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,587 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,588 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,588 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,588 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,588 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,590 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,590 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,590 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,591 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,591 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,591 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,591 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,591 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,593 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,593 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,593 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,594 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,594 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,594 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,594 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,594 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,596 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,596 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,596 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,596 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,597 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,597 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,597 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,597 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,599 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,599 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,599 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,599 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,600 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,600 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,602 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,602 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,602 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,602 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,603 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,603 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,605 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,605 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,605 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,605 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,606 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,606 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,608 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,608 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,608 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,609 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,609 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,609 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:38:32,611 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 00:38:32,611 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:38:32,611 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:38:32,612 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:38:32,612 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:38:32,612 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:38:32,612 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:38:32,612 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:38:32,612 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:38:32,614 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 138 transitions [2019-12-27 00:38:32,614 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 00:38:32,638 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 00:38:32,638 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:38:32,642 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 00:38:32,653 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 147 places, 138 transitions [2019-12-27 00:38:32,676 INFO L132 PetriNetUnfolder]: 10/163 cut-off events. [2019-12-27 00:38:32,676 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:38:32,680 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 163 events. 10/163 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 344 event pairs. 0/147 useless extension candidates. Maximal degree in co-relation 183. Up to 10 conditions per place. [2019-12-27 00:38:32,690 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5180 [2019-12-27 00:38:32,690 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:38:34,346 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-12-27 00:38:35,750 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 00:38:35,874 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 00:38:35,898 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10723 [2019-12-27 00:38:35,898 INFO L214 etLargeBlockEncoding]: Total number of compositions: 110 [2019-12-27 00:38:35,898 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 49 transitions [2019-12-27 00:38:37,946 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 27215 states. [2019-12-27 00:38:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 27215 states. [2019-12-27 00:38:37,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 00:38:37,947 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:37,947 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 00:38:37,948 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:37,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:37,948 INFO L82 PathProgramCache]: Analyzing trace with hash 946624, now seen corresponding path program 1 times [2019-12-27 00:38:37,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:37,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502563825] [2019-12-27 00:38:37,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:37,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502563825] [2019-12-27 00:38:37,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:37,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:38:37,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889261063] [2019-12-27 00:38:37,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:38:37,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:37,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:38:37,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:37,972 INFO L87 Difference]: Start difference. First operand 27215 states. Second operand 3 states. [2019-12-27 00:38:38,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:38,287 INFO L93 Difference]: Finished difference Result 40707 states and 212933 transitions. [2019-12-27 00:38:38,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:38:38,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 00:38:38,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:38,464 INFO L225 Difference]: With dead ends: 40707 [2019-12-27 00:38:38,465 INFO L226 Difference]: Without dead ends: 37840 [2019-12-27 00:38:38,465 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:40,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37840 states. [2019-12-27 00:38:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37840 to 31312. [2019-12-27 00:38:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31312 states. [2019-12-27 00:38:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31312 states to 31312 states and 167892 transitions. [2019-12-27 00:38:41,352 INFO L78 Accepts]: Start accepts. Automaton has 31312 states and 167892 transitions. Word has length 3 [2019-12-27 00:38:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:41,352 INFO L462 AbstractCegarLoop]: Abstraction has 31312 states and 167892 transitions. [2019-12-27 00:38:41,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:38:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 31312 states and 167892 transitions. [2019-12-27 00:38:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:38:41,353 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:41,353 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:41,353 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:41,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:41,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1611095704, now seen corresponding path program 1 times [2019-12-27 00:38:41,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:41,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258731436] [2019-12-27 00:38:41,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:41,392 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258731436] [2019-12-27 00:38:41,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:41,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:41,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917539954] [2019-12-27 00:38:41,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:41,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:41,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:41,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:41,394 INFO L87 Difference]: Start difference. First operand 31312 states and 167892 transitions. Second operand 5 states. [2019-12-27 00:38:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:44,153 INFO L93 Difference]: Finished difference Result 61552 states and 310872 transitions. [2019-12-27 00:38:44,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:44,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 00:38:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:44,405 INFO L225 Difference]: With dead ends: 61552 [2019-12-27 00:38:44,406 INFO L226 Difference]: Without dead ends: 61417 [2019-12-27 00:38:44,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61417 states. [2019-12-27 00:38:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61417 to 31849. [2019-12-27 00:38:45,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31849 states. [2019-12-27 00:38:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31849 states to 31849 states and 171175 transitions. [2019-12-27 00:38:45,728 INFO L78 Accepts]: Start accepts. Automaton has 31849 states and 171175 transitions. Word has length 10 [2019-12-27 00:38:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:45,728 INFO L462 AbstractCegarLoop]: Abstraction has 31849 states and 171175 transitions. [2019-12-27 00:38:45,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 31849 states and 171175 transitions. [2019-12-27 00:38:45,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:38:45,729 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:45,730 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:45,730 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:45,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:45,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1422265713, now seen corresponding path program 1 times [2019-12-27 00:38:45,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:45,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126398462] [2019-12-27 00:38:45,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:38:45,766 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126398462] [2019-12-27 00:38:45,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:45,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:45,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311313930] [2019-12-27 00:38:45,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:45,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:45,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:45,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:45,768 INFO L87 Difference]: Start difference. First operand 31849 states and 171175 transitions. Second operand 5 states. [2019-12-27 00:38:46,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:46,654 INFO L93 Difference]: Finished difference Result 68818 states and 349292 transitions. [2019-12-27 00:38:46,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:46,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-27 00:38:46,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:46,896 INFO L225 Difference]: With dead ends: 68818 [2019-12-27 00:38:46,897 INFO L226 Difference]: Without dead ends: 68623 [2019-12-27 00:38:46,897 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68623 states. [2019-12-27 00:38:50,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68623 to 35815. [2019-12-27 00:38:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35815 states. [2019-12-27 00:38:50,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35815 states to 35815 states and 193241 transitions. [2019-12-27 00:38:50,798 INFO L78 Accepts]: Start accepts. Automaton has 35815 states and 193241 transitions. Word has length 14 [2019-12-27 00:38:50,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:50,799 INFO L462 AbstractCegarLoop]: Abstraction has 35815 states and 193241 transitions. [2019-12-27 00:38:50,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 35815 states and 193241 transitions. [2019-12-27 00:38:50,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:38:50,801 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:50,801 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:50,801 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:50,802 INFO L82 PathProgramCache]: Analyzing trace with hash 4042225, now seen corresponding path program 1 times [2019-12-27 00:38:50,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:50,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350694017] [2019-12-27 00:38:50,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:50,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350694017] [2019-12-27 00:38:50,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:50,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:50,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682551220] [2019-12-27 00:38:50,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:38:50,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:50,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:38:50,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:50,826 INFO L87 Difference]: Start difference. First operand 35815 states and 193241 transitions. Second operand 3 states. [2019-12-27 00:38:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:50,924 INFO L93 Difference]: Finished difference Result 11815 states and 46339 transitions. [2019-12-27 00:38:50,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:38:50,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 00:38:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:50,969 INFO L225 Difference]: With dead ends: 11815 [2019-12-27 00:38:50,969 INFO L226 Difference]: Without dead ends: 11815 [2019-12-27 00:38:50,969 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:38:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11815 states. [2019-12-27 00:38:51,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11815 to 11727. [2019-12-27 00:38:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11727 states. [2019-12-27 00:38:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11727 states to 11727 states and 46027 transitions. [2019-12-27 00:38:51,346 INFO L78 Accepts]: Start accepts. Automaton has 11727 states and 46027 transitions. Word has length 17 [2019-12-27 00:38:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:51,346 INFO L462 AbstractCegarLoop]: Abstraction has 11727 states and 46027 transitions. [2019-12-27 00:38:51,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:38:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 11727 states and 46027 transitions. [2019-12-27 00:38:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:38:51,348 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:51,348 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:51,348 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:51,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:51,348 INFO L82 PathProgramCache]: Analyzing trace with hash 443360276, now seen corresponding path program 1 times [2019-12-27 00:38:51,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:51,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965751858] [2019-12-27 00:38:51,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:51,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965751858] [2019-12-27 00:38:51,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865099131] [2019-12-27 00:38:51,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:51,514 INFO L264 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 00:38:51,517 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:38:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:38:51,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:38:51,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 00:38:51,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616510498] [2019-12-27 00:38:51,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 00:38:51,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:51,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 00:38:51,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 00:38:51,595 INFO L87 Difference]: Start difference. First operand 11727 states and 46027 transitions. Second operand 12 states. [2019-12-27 00:38:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:52,093 INFO L93 Difference]: Finished difference Result 28530 states and 109464 transitions. [2019-12-27 00:38:52,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:38:52,095 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-27 00:38:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:52,158 INFO L225 Difference]: With dead ends: 28530 [2019-12-27 00:38:52,158 INFO L226 Difference]: Without dead ends: 28458 [2019-12-27 00:38:52,159 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 00:38:52,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2019-12-27 00:38:52,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 11001. [2019-12-27 00:38:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11001 states. [2019-12-27 00:38:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11001 states to 11001 states and 43045 transitions. [2019-12-27 00:38:52,906 INFO L78 Accepts]: Start accepts. Automaton has 11001 states and 43045 transitions. Word has length 18 [2019-12-27 00:38:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:52,906 INFO L462 AbstractCegarLoop]: Abstraction has 11001 states and 43045 transitions. [2019-12-27 00:38:52,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 00:38:52,906 INFO L276 IsEmpty]: Start isEmpty. Operand 11001 states and 43045 transitions. [2019-12-27 00:38:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:38:52,908 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:52,908 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:53,108 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:53,109 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:53,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:53,110 INFO L82 PathProgramCache]: Analyzing trace with hash 945001287, now seen corresponding path program 1 times [2019-12-27 00:38:53,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:53,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666222343] [2019-12-27 00:38:53,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:38:53,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666222343] [2019-12-27 00:38:53,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:53,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:38:53,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106980026] [2019-12-27 00:38:53,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:38:53,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:53,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:38:53,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:53,207 INFO L87 Difference]: Start difference. First operand 11001 states and 43045 transitions. Second operand 7 states. [2019-12-27 00:38:53,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:53,686 INFO L93 Difference]: Finished difference Result 28862 states and 110813 transitions. [2019-12-27 00:38:53,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:38:53,686 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-27 00:38:53,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:53,759 INFO L225 Difference]: With dead ends: 28862 [2019-12-27 00:38:53,759 INFO L226 Difference]: Without dead ends: 28784 [2019-12-27 00:38:53,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 00:38:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28784 states. [2019-12-27 00:38:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28784 to 9913. [2019-12-27 00:38:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9913 states. [2019-12-27 00:38:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9913 states to 9913 states and 38486 transitions. [2019-12-27 00:38:55,252 INFO L78 Accepts]: Start accepts. Automaton has 9913 states and 38486 transitions. Word has length 18 [2019-12-27 00:38:55,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:55,252 INFO L462 AbstractCegarLoop]: Abstraction has 9913 states and 38486 transitions. [2019-12-27 00:38:55,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:38:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 9913 states and 38486 transitions. [2019-12-27 00:38:55,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-27 00:38:55,254 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:55,254 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:55,254 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:55,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1251122520, now seen corresponding path program 1 times [2019-12-27 00:38:55,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:55,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839836768] [2019-12-27 00:38:55,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 00:38:55,304 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839836768] [2019-12-27 00:38:55,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:55,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:38:55,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533366214] [2019-12-27 00:38:55,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:38:55,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:55,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:38:55,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:38:55,305 INFO L87 Difference]: Start difference. First operand 9913 states and 38486 transitions. Second operand 5 states. [2019-12-27 00:38:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:55,519 INFO L93 Difference]: Finished difference Result 21922 states and 84447 transitions. [2019-12-27 00:38:55,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:38:55,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-12-27 00:38:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:55,575 INFO L225 Difference]: With dead ends: 21922 [2019-12-27 00:38:55,575 INFO L226 Difference]: Without dead ends: 21850 [2019-12-27 00:38:55,575 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21850 states. [2019-12-27 00:38:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21850 to 11607. [2019-12-27 00:38:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11607 states. [2019-12-27 00:38:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11607 states to 11607 states and 45534 transitions. [2019-12-27 00:38:55,867 INFO L78 Accepts]: Start accepts. Automaton has 11607 states and 45534 transitions. Word has length 18 [2019-12-27 00:38:55,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:55,867 INFO L462 AbstractCegarLoop]: Abstraction has 11607 states and 45534 transitions. [2019-12-27 00:38:55,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:38:55,867 INFO L276 IsEmpty]: Start isEmpty. Operand 11607 states and 45534 transitions. [2019-12-27 00:38:55,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 00:38:55,869 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:55,870 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:55,870 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:55,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:55,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1715192443, now seen corresponding path program 1 times [2019-12-27 00:38:55,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:55,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657814498] [2019-12-27 00:38:55,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 00:38:55,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657814498] [2019-12-27 00:38:55,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293042734] [2019-12-27 00:38:55,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:56,030 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 00:38:56,032 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:38:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 00:38:56,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:38:56,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 00:38:56,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771196615] [2019-12-27 00:38:56,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 00:38:56,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:56,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 00:38:56,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 00:38:56,120 INFO L87 Difference]: Start difference. First operand 11607 states and 45534 transitions. Second operand 12 states. [2019-12-27 00:38:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:56,688 INFO L93 Difference]: Finished difference Result 30386 states and 117281 transitions. [2019-12-27 00:38:56,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:38:56,688 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-27 00:38:56,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:56,784 INFO L225 Difference]: With dead ends: 30386 [2019-12-27 00:38:56,784 INFO L226 Difference]: Without dead ends: 30314 [2019-12-27 00:38:56,785 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 00:38:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30314 states. [2019-12-27 00:38:57,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30314 to 11357. [2019-12-27 00:38:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11357 states. [2019-12-27 00:38:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11357 states to 11357 states and 44521 transitions. [2019-12-27 00:38:57,309 INFO L78 Accepts]: Start accepts. Automaton has 11357 states and 44521 transitions. Word has length 22 [2019-12-27 00:38:57,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:57,310 INFO L462 AbstractCegarLoop]: Abstraction has 11357 states and 44521 transitions. [2019-12-27 00:38:57,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 00:38:57,311 INFO L276 IsEmpty]: Start isEmpty. Operand 11357 states and 44521 transitions. [2019-12-27 00:38:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 00:38:57,313 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:57,313 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:57,515 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:57,516 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash 677055142, now seen corresponding path program 1 times [2019-12-27 00:38:57,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:57,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426079521] [2019-12-27 00:38:57,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:38:57,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426079521] [2019-12-27 00:38:57,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936650616] [2019-12-27 00:38:57,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:57,700 INFO L264 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-27 00:38:57,702 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:38:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:38:57,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 00:38:57,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2019-12-27 00:38:57,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004612900] [2019-12-27 00:38:57,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-27 00:38:57,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:57,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-27 00:38:57,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-27 00:38:57,774 INFO L87 Difference]: Start difference. First operand 11357 states and 44521 transitions. Second operand 12 states. [2019-12-27 00:38:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:58,370 INFO L93 Difference]: Finished difference Result 31062 states and 120131 transitions. [2019-12-27 00:38:58,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:38:58,371 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-27 00:38:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:58,436 INFO L225 Difference]: With dead ends: 31062 [2019-12-27 00:38:58,436 INFO L226 Difference]: Without dead ends: 30990 [2019-12-27 00:38:58,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2019-12-27 00:38:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30990 states. [2019-12-27 00:38:58,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30990 to 11439. [2019-12-27 00:38:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11439 states. [2019-12-27 00:38:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11439 states to 11439 states and 44850 transitions. [2019-12-27 00:38:58,762 INFO L78 Accepts]: Start accepts. Automaton has 11439 states and 44850 transitions. Word has length 22 [2019-12-27 00:38:58,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:38:58,763 INFO L462 AbstractCegarLoop]: Abstraction has 11439 states and 44850 transitions. [2019-12-27 00:38:58,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-27 00:38:58,763 INFO L276 IsEmpty]: Start isEmpty. Operand 11439 states and 44850 transitions. [2019-12-27 00:38:58,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 00:38:58,765 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:38:58,765 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:38:58,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:38:58,969 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:38:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:38:58,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1396745761, now seen corresponding path program 1 times [2019-12-27 00:38:58,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:38:58,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300944915] [2019-12-27 00:38:58,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:38:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:38:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 00:38:59,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300944915] [2019-12-27 00:38:59,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:38:59,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:38:59,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493322443] [2019-12-27 00:38:59,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:38:59,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:38:59,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:38:59,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:38:59,031 INFO L87 Difference]: Start difference. First operand 11439 states and 44850 transitions. Second operand 7 states. [2019-12-27 00:38:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:38:59,651 INFO L93 Difference]: Finished difference Result 31058 states and 120097 transitions. [2019-12-27 00:38:59,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:38:59,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 00:38:59,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:38:59,752 INFO L225 Difference]: With dead ends: 31058 [2019-12-27 00:38:59,752 INFO L226 Difference]: Without dead ends: 30980 [2019-12-27 00:38:59,753 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 00:38:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2019-12-27 00:39:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 11093. [2019-12-27 00:39:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11093 states. [2019-12-27 00:39:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11093 states to 11093 states and 43368 transitions. [2019-12-27 00:39:00,081 INFO L78 Accepts]: Start accepts. Automaton has 11093 states and 43368 transitions. Word has length 22 [2019-12-27 00:39:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:39:00,081 INFO L462 AbstractCegarLoop]: Abstraction has 11093 states and 43368 transitions. [2019-12-27 00:39:00,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:39:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 11093 states and 43368 transitions. [2019-12-27 00:39:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 00:39:00,084 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:39:00,085 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:39:00,085 INFO L410 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:39:00,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:39:00,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1396448409, now seen corresponding path program 1 times [2019-12-27 00:39:00,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:39:00,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443075837] [2019-12-27 00:39:00,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:39:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:39:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 00:39:00,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443075837] [2019-12-27 00:39:00,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:39:00,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:39:00,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709132625] [2019-12-27 00:39:00,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:39:00,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:39:00,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:39:00,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:39:00,154 INFO L87 Difference]: Start difference. First operand 11093 states and 43368 transitions. Second operand 7 states. [2019-12-27 00:39:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:39:00,750 INFO L93 Difference]: Finished difference Result 30992 states and 119819 transitions. [2019-12-27 00:39:00,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-27 00:39:00,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-12-27 00:39:00,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:39:00,848 INFO L225 Difference]: With dead ends: 30992 [2019-12-27 00:39:00,848 INFO L226 Difference]: Without dead ends: 30914 [2019-12-27 00:39:00,849 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2019-12-27 00:39:00,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2019-12-27 00:39:01,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 10835. [2019-12-27 00:39:01,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10835 states. [2019-12-27 00:39:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10835 states to 10835 states and 42198 transitions. [2019-12-27 00:39:01,176 INFO L78 Accepts]: Start accepts. Automaton has 10835 states and 42198 transitions. Word has length 22 [2019-12-27 00:39:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:39:01,176 INFO L462 AbstractCegarLoop]: Abstraction has 10835 states and 42198 transitions. [2019-12-27 00:39:01,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:39:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10835 states and 42198 transitions. [2019-12-27 00:39:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 00:39:01,179 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:39:01,180 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:39:01,180 INFO L410 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:39:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:39:01,180 INFO L82 PathProgramCache]: Analyzing trace with hash -2032188915, now seen corresponding path program 1 times [2019-12-27 00:39:01,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:39:01,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483399015] [2019-12-27 00:39:01,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:39:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:39:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-12-27 00:39:01,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483399015] [2019-12-27 00:39:01,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:39:01,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:39:01,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373683469] [2019-12-27 00:39:01,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:39:01,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:39:01,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:39:01,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:39:01,230 INFO L87 Difference]: Start difference. First operand 10835 states and 42198 transitions. Second operand 5 states. [2019-12-27 00:39:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:39:01,478 INFO L93 Difference]: Finished difference Result 22192 states and 85781 transitions. [2019-12-27 00:39:01,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:39:01,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-27 00:39:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:39:01,690 INFO L225 Difference]: With dead ends: 22192 [2019-12-27 00:39:01,690 INFO L226 Difference]: Without dead ends: 22108 [2019-12-27 00:39:01,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:39:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22108 states. [2019-12-27 00:39:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22108 to 12085. [2019-12-27 00:39:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12085 states. [2019-12-27 00:39:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12085 states to 12085 states and 47309 transitions. [2019-12-27 00:39:01,986 INFO L78 Accepts]: Start accepts. Automaton has 12085 states and 47309 transitions. Word has length 22 [2019-12-27 00:39:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:39:01,986 INFO L462 AbstractCegarLoop]: Abstraction has 12085 states and 47309 transitions. [2019-12-27 00:39:01,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:39:01,986 INFO L276 IsEmpty]: Start isEmpty. Operand 12085 states and 47309 transitions. [2019-12-27 00:39:01,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 00:39:01,988 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:39:01,988 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:39:01,989 INFO L410 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:39:01,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:39:01,989 INFO L82 PathProgramCache]: Analyzing trace with hash -2038302932, now seen corresponding path program 1 times [2019-12-27 00:39:01,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:39:01,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152103159] [2019-12-27 00:39:01,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:39:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:39:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:39:02,015 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:39:02,015 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:39:02,016 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:39:02,016 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 00:39:02,035 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,035 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,035 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,035 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,036 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,037 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,037 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,037 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,037 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,038 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,038 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,038 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,039 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,040 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,040 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,040 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,042 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,042 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,042 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,042 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,042 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,042 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,043 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,048 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,049 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,049 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,049 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,050 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,051 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,052 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,053 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,054 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,055 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,056 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,057 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,058 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,059 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,060 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,062 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,063 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,064 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,065 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,066 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,066 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,066 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,066 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,067 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,067 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,069 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,069 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,069 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,069 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,070 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,070 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,070 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,070 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,071 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,071 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,072 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,072 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,072 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,072 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,073 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,073 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,073 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,074 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,074 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,074 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,075 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,075 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,075 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,076 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,076 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,076 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,077 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,077 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,077 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,078 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,078 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,078 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,080 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,080 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,080 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,081 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,081 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,081 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:39:02,082 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 00:39:02,083 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:39:02,083 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:39:02,083 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:39:02,083 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:39:02,083 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:39:02,083 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:39:02,083 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:39:02,083 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:39:02,085 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 162 transitions [2019-12-27 00:39:02,085 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 00:39:02,122 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 00:39:02,122 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:39:02,128 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 00:39:02,143 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 173 places, 162 transitions [2019-12-27 00:39:02,175 INFO L132 PetriNetUnfolder]: 12/192 cut-off events. [2019-12-27 00:39:02,175 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:39:02,182 INFO L76 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 192 events. 12/192 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 421 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 219. Up to 12 conditions per place. [2019-12-27 00:39:02,197 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 7304 [2019-12-27 00:39:02,197 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:39:05,324 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-12-27 00:39:05,785 WARN L192 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-12-27 00:39:05,940 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-12-27 00:39:05,948 INFO L206 etLargeBlockEncoding]: Checked pairs total: 14503 [2019-12-27 00:39:05,949 INFO L214 etLargeBlockEncoding]: Total number of compositions: 123 [2019-12-27 00:39:05,949 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 60 transitions [2019-12-27 00:40:02,047 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 186623 states. [2019-12-27 00:40:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 186623 states. [2019-12-27 00:40:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-27 00:40:02,048 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:40:02,048 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-27 00:40:02,048 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:40:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:40:02,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1258960, now seen corresponding path program 1 times [2019-12-27 00:40:02,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:40:02,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099083938] [2019-12-27 00:40:02,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:40:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:40:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:40:02,080 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099083938] [2019-12-27 00:40:02,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:40:02,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:40:02,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264176118] [2019-12-27 00:40:02,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:40:02,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:40:02,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:40:02,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:40:02,081 INFO L87 Difference]: Start difference. First operand 186623 states. Second operand 3 states. [2019-12-27 00:40:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:40:09,287 INFO L93 Difference]: Finished difference Result 242286 states and 1521279 transitions. [2019-12-27 00:40:09,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:40:09,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-27 00:40:09,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:40:10,368 INFO L225 Difference]: With dead ends: 242286 [2019-12-27 00:40:10,368 INFO L226 Difference]: Without dead ends: 226558 [2019-12-27 00:40:10,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:40:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226558 states. [2019-12-27 00:40:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226558 to 198682. [2019-12-27 00:40:19,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198682 states. [2019-12-27 00:40:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198682 states to 198682 states and 1265854 transitions. [2019-12-27 00:40:30,608 INFO L78 Accepts]: Start accepts. Automaton has 198682 states and 1265854 transitions. Word has length 3 [2019-12-27 00:40:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:40:30,608 INFO L462 AbstractCegarLoop]: Abstraction has 198682 states and 1265854 transitions. [2019-12-27 00:40:30,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:40:30,608 INFO L276 IsEmpty]: Start isEmpty. Operand 198682 states and 1265854 transitions. [2019-12-27 00:40:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:40:30,609 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:40:30,609 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:40:30,609 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:40:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:40:30,609 INFO L82 PathProgramCache]: Analyzing trace with hash 540627390, now seen corresponding path program 1 times [2019-12-27 00:40:30,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:40:30,610 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085137691] [2019-12-27 00:40:30,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:40:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:40:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:40:30,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085137691] [2019-12-27 00:40:30,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:40:30,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:40:30,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447479869] [2019-12-27 00:40:30,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:40:30,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:40:30,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:40:30,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:40:30,646 INFO L87 Difference]: Start difference. First operand 198682 states and 1265854 transitions. Second operand 5 states. [2019-12-27 00:40:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:40:53,309 INFO L93 Difference]: Finished difference Result 405850 states and 2493584 transitions. [2019-12-27 00:40:53,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:40:53,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 00:40:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:40:54,972 INFO L225 Difference]: With dead ends: 405850 [2019-12-27 00:40:54,973 INFO L226 Difference]: Without dead ends: 405418 [2019-12-27 00:40:54,973 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:40:58,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405418 states. [2019-12-27 00:41:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405418 to 220810. [2019-12-27 00:41:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220810 states. [2019-12-27 00:41:30,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220810 states to 220810 states and 1422135 transitions. [2019-12-27 00:41:30,329 INFO L78 Accepts]: Start accepts. Automaton has 220810 states and 1422135 transitions. Word has length 10 [2019-12-27 00:41:30,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:41:30,330 INFO L462 AbstractCegarLoop]: Abstraction has 220810 states and 1422135 transitions. [2019-12-27 00:41:30,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:41:30,330 INFO L276 IsEmpty]: Start isEmpty. Operand 220810 states and 1422135 transitions. [2019-12-27 00:41:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 00:41:30,330 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:41:30,330 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:41:30,330 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:41:30,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:41:30,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1439547760, now seen corresponding path program 1 times [2019-12-27 00:41:30,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:41:30,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752413890] [2019-12-27 00:41:30,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:41:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:41:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:41:30,386 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752413890] [2019-12-27 00:41:30,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:41:30,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:41:30,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308412737] [2019-12-27 00:41:30,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:41:30,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:41:30,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:41:30,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:41:30,387 INFO L87 Difference]: Start difference. First operand 220810 states and 1422135 transitions. Second operand 5 states. Received shutdown request... [2019-12-27 00:41:40,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:41:40,650 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 00:41:40,654 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 00:41:40,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:41:40 BasicIcfg [2019-12-27 00:41:40,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:41:40,656 INFO L168 Benchmark]: Toolchain (without parser) took 203261.14 ms. Allocated memory was 143.1 MB in the beginning and 5.4 GB in the end (delta: 5.3 GB). Free memory was 100.7 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.1 GB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,656 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.82 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 158.6 MB in the end (delta: -58.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,658 INFO L168 Benchmark]: Boogie Preprocessor took 40.67 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,658 INFO L168 Benchmark]: RCFGBuilder took 461.12 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 133.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,659 INFO L168 Benchmark]: TraceAbstraction took 201971.09 ms. Allocated memory was 202.4 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 132.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.0 GB. Max. memory is 7.1 GB. [2019-12-27 00:41:40,661 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.82 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 100.5 MB in the beginning and 158.6 MB in the end (delta: -58.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.67 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.12 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 133.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201971.09 ms. Allocated memory was 202.4 MB in the beginning and 5.4 GB in the end (delta: 5.2 GB). Free memory was 132.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.4s, 69 ProgramPointsBefore, 15 ProgramPointsAfterwards, 66 TransitionsBefore, 12 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 519 VarBasedMoverChecksPositive, 3 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 4 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 729 CheckedPairsTotal, 57 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 95 ProgramPointsBefore, 32 ProgramPointsAfterwards, 90 TransitionsBefore, 29 TransitionsAfterwards, 2024 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 1062 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2838 CheckedPairsTotal, 69 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 121 ProgramPointsBefore, 44 ProgramPointsAfterwards, 114 TransitionsBefore, 40 TransitionsAfterwards, 3420 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1774 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 41 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 6734 CheckedPairsTotal, 89 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.2s, 147 ProgramPointsBefore, 54 ProgramPointsAfterwards, 138 TransitionsBefore, 49 TransitionsAfterwards, 5180 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 2790 VarBasedMoverChecksPositive, 73 VarBasedMoverChecksNegative, 31 SemBasedMoverChecksPositive, 66 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 10723 CheckedPairsTotal, 110 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.8s, 173 ProgramPointsBefore, 66 ProgramPointsAfterwards, 162 TransitionsBefore, 60 TransitionsAfterwards, 7304 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 3552 VarBasedMoverChecksPositive, 87 VarBasedMoverChecksNegative, 55 SemBasedMoverChecksPositive, 62 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 14503 CheckedPairsTotal, 123 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (220810states) and FLOYD_HOARE automaton (currently 6 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (194417 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Result: TIMEOUT, OverallTime: 158.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 42.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 404 SDslu, 216 SDs, 0 SdLazy, 265 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220810occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 55.5s AutomataMinimizationTime, 2 MinimizatonAttempts, 212484 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1734 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown