/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:45:16,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:45:16,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:45:16,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:45:16,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:45:16,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:45:16,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:45:16,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:45:16,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:45:16,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:45:16,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:45:16,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:45:16,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:45:16,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:45:16,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:45:16,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:45:16,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:45:16,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:45:16,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:45:16,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:45:16,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:45:16,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:45:16,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:45:16,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:45:16,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 19:45:16,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:45:16,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:45:16,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:45:16,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:45:16,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:45:16,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:45:16,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:45:16,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:45:16,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:45:16,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:45:16,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:45:16,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-18 19:45:16,908 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:45:16,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:45:16,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:45:16,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:45:16,911 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:45:16,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:45:16,912 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:45:16,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:45:16,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:45:16,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:45:16,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:45:16,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:45:16,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:45:16,914 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:45:16,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:45:16,914 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:45:16,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:45:16,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:45:16,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:45:16,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:45:16,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:45:16,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:45:16,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:45:16,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:45:16,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:45:16,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:45:16,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:45:16,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 19:45:16,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:45:16,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:45:17,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:45:17,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:45:17,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:45:17,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:45:17,210 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:45:17,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-18 19:45:17,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b6739ee/8d39376006f543bc84b874ad3587584e/FLAG1696277a9 [2019-12-18 19:45:17,839 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:45:17,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/31_simple_loop5_vs.i [2019-12-18 19:45:17,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b6739ee/8d39376006f543bc84b874ad3587584e/FLAG1696277a9 [2019-12-18 19:45:18,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b6739ee/8d39376006f543bc84b874ad3587584e [2019-12-18 19:45:18,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:45:18,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:45:18,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:45:18,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:45:18,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:45:18,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5bef18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18, skipping insertion in model container [2019-12-18 19:45:18,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:45:18,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:45:18,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:45:18,705 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:45:18,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:45:18,841 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:45:18,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18 WrapperNode [2019-12-18 19:45:18,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:45:18,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:45:18,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:45:18,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:45:18,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:45:18,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:45:18,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:45:18,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:45:18,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (1/1) ... [2019-12-18 19:45:18,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:45:18,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:45:18,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:45:18,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:45:18,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (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 [2019-12-18 19:45:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-18 19:45:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-18 19:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 19:45:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 19:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:45:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:45:18,974 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 19:45:19,150 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 19:45:19,151 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 19:45:19,210 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-12-18 19:45:19,214 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-12-18 19:45:19,301 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:45:19,301 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-18 19:45:19,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:45:19 BoogieIcfgContainer [2019-12-18 19:45:19,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:45:19,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:45:19,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:45:19,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:45:19,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:45:18" (1/3) ... [2019-12-18 19:45:19,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2032afc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:45:19, skipping insertion in model container [2019-12-18 19:45:19,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:45:18" (2/3) ... [2019-12-18 19:45:19,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2032afc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:45:19, skipping insertion in model container [2019-12-18 19:45:19,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:45:19" (3/3) ... [2019-12-18 19:45:19,310 INFO L109 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2019-12-18 19:45:19,320 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:45:19,320 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:45:19,327 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:45:19,328 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:45:19,352 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,352 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,353 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,353 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,354 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,354 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,355 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,355 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,356 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,356 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,360 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,361 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,361 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,367 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,367 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:19,381 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:45:19,400 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:45:19,400 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:45:19,400 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:45:19,400 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:45:19,401 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:45:19,401 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:45:19,401 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:45:19,401 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:45:19,414 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 47 transitions [2019-12-18 19:45:19,416 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-18 19:45:19,455 INFO L126 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-18 19:45:19,456 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:19,464 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 8/52 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-18 19:45:19,468 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions [2019-12-18 19:45:19,485 INFO L126 PetriNetUnfolder]: 7/54 cut-off events. [2019-12-18 19:45:19,485 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:19,487 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 54 events. 7/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs. 8/52 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2019-12-18 19:45:19,490 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 684 [2019-12-18 19:45:19,491 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:45:20,095 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1213 [2019-12-18 19:45:20,095 INFO L214 etLargeBlockEncoding]: Total number of compositions: 26 [2019-12-18 19:45:20,099 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions [2019-12-18 19:45:20,118 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 206 states. [2019-12-18 19:45:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-12-18 19:45:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 19:45:20,129 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:20,129 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 19:45:20,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:45:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash 197558128, now seen corresponding path program 1 times [2019-12-18 19:45:20,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:20,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192948468] [2019-12-18 19:45:20,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:20,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192948468] [2019-12-18 19:45:20,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:20,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:45:20,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115734464] [2019-12-18 19:45:20,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:20,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:20,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:20,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:20,396 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2019-12-18 19:45:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:20,445 INFO L93 Difference]: Finished difference Result 142 states and 378 transitions. [2019-12-18 19:45:20,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:20,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 19:45:20,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:20,479 INFO L225 Difference]: With dead ends: 142 [2019-12-18 19:45:20,480 INFO L226 Difference]: Without dead ends: 142 [2019-12-18 19:45:20,481 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 [2019-12-18 19:45:20,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-18 19:45:20,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-12-18 19:45:20,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-18 19:45:20,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 378 transitions. [2019-12-18 19:45:20,549 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 378 transitions. Word has length 5 [2019-12-18 19:45:20,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:20,549 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 378 transitions. [2019-12-18 19:45:20,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 378 transitions. [2019-12-18 19:45:20,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:45:20,551 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:20,551 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:20,551 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-18 19:45:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:20,553 INFO L82 PathProgramCache]: Analyzing trace with hash 197335581, now seen corresponding path program 1 times [2019-12-18 19:45:20,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:20,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058350265] [2019-12-18 19:45:20,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:20,637 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:45:20,637 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:45:20,638 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:45:20,639 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-18 19:45:20,646 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,647 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,647 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,647 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,647 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,647 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,648 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,648 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,648 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,648 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,649 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,649 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,650 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,650 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,650 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,650 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,650 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,651 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,651 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,651 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,652 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,652 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,652 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,652 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,653 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,653 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,653 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,654 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,655 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,655 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,656 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,656 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,663 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,663 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,664 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,664 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,666 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,666 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,667 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,667 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:20,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-18 19:45:20,671 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:45:20,671 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:45:20,671 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:45:20,671 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:45:20,671 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:45:20,671 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:45:20,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:45:20,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:45:20,675 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions [2019-12-18 19:45:20,675 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-18 19:45:20,707 INFO L126 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-18 19:45:20,707 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:20,709 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 20/80 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-18 19:45:20,713 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions [2019-12-18 19:45:20,737 INFO L126 PetriNetUnfolder]: 10/74 cut-off events. [2019-12-18 19:45:20,737 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:20,739 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 165 event pairs. 20/80 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2019-12-18 19:45:20,742 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1346 [2019-12-18 19:45:20,742 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:45:21,308 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3454 [2019-12-18 19:45:21,309 INFO L214 etLargeBlockEncoding]: Total number of compositions: 37 [2019-12-18 19:45:21,309 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 37 transitions [2019-12-18 19:45:21,403 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1941 states. [2019-12-18 19:45:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states. [2019-12-18 19:45:21,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 19:45:21,404 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:21,404 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 19:45:21,404 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:45:21,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:21,405 INFO L82 PathProgramCache]: Analyzing trace with hash 326900749, now seen corresponding path program 1 times [2019-12-18 19:45:21,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:21,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084473340] [2019-12-18 19:45:21,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:21,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084473340] [2019-12-18 19:45:21,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:21,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:45:21,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620559079] [2019-12-18 19:45:21,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:21,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:21,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:21,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:21,445 INFO L87 Difference]: Start difference. First operand 1941 states. Second operand 3 states. [2019-12-18 19:45:21,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:21,515 INFO L93 Difference]: Finished difference Result 1248 states and 4550 transitions. [2019-12-18 19:45:21,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:21,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 19:45:21,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:21,532 INFO L225 Difference]: With dead ends: 1248 [2019-12-18 19:45:21,532 INFO L226 Difference]: Without dead ends: 1248 [2019-12-18 19:45:21,533 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 [2019-12-18 19:45:21,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2019-12-18 19:45:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1248. [2019-12-18 19:45:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2019-12-18 19:45:21,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 4550 transitions. [2019-12-18 19:45:21,654 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 4550 transitions. Word has length 5 [2019-12-18 19:45:21,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:21,654 INFO L462 AbstractCegarLoop]: Abstraction has 1248 states and 4550 transitions. [2019-12-18 19:45:21,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 4550 transitions. [2019-12-18 19:45:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:45:21,657 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:21,658 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:21,658 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:45:21,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:21,658 INFO L82 PathProgramCache]: Analyzing trace with hash -803382983, now seen corresponding path program 1 times [2019-12-18 19:45:21,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:21,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570534428] [2019-12-18 19:45:21,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:21,734 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:45:21,736 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:45:21,736 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:45:21,736 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-18 19:45:21,745 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,746 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,746 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,746 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,746 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,747 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,747 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,747 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,747 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,747 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,748 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,748 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,748 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,748 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,749 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,749 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,749 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,749 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,750 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,750 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,750 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,754 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,754 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,754 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,755 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,755 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,755 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,755 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,755 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,756 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,756 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,756 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,756 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,757 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,757 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,757 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,757 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,758 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,758 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,763 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,763 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,763 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,764 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,767 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,767 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,767 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,768 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,769 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,769 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,771 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,771 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,772 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,772 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,773 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:21,773 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 19:45:21,774 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:45:21,774 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:45:21,774 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:45:21,774 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:45:21,774 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:45:21,774 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:45:21,774 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:45:21,774 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:45:21,777 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 93 transitions [2019-12-18 19:45:21,777 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-18 19:45:21,792 INFO L126 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-18 19:45:21,792 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:21,794 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs. 36/112 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-18 19:45:21,798 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 93 transitions [2019-12-18 19:45:21,811 INFO L126 PetriNetUnfolder]: 13/94 cut-off events. [2019-12-18 19:45:21,811 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:21,813 INFO L76 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 94 events. 13/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs. 36/112 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2019-12-18 19:45:21,817 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2228 [2019-12-18 19:45:21,817 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:45:22,369 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5410 [2019-12-18 19:45:22,369 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2019-12-18 19:45:22,369 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 48 transitions [2019-12-18 19:45:23,258 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11660 states. [2019-12-18 19:45:23,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11660 states. [2019-12-18 19:45:23,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 19:45:23,259 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:23,259 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 19:45:23,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:45:23,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:23,260 INFO L82 PathProgramCache]: Analyzing trace with hash 494303321, now seen corresponding path program 1 times [2019-12-18 19:45:23,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:23,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455569381] [2019-12-18 19:45:23,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:23,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455569381] [2019-12-18 19:45:23,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:23,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:45:23,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068852989] [2019-12-18 19:45:23,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:23,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:23,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:23,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:23,322 INFO L87 Difference]: Start difference. First operand 11660 states. Second operand 3 states. [2019-12-18 19:45:23,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:23,453 INFO L93 Difference]: Finished difference Result 6178 states and 28552 transitions. [2019-12-18 19:45:23,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:23,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 19:45:23,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:23,529 INFO L225 Difference]: With dead ends: 6178 [2019-12-18 19:45:23,529 INFO L226 Difference]: Without dead ends: 6178 [2019-12-18 19:45:23,530 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 [2019-12-18 19:45:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6178 states. [2019-12-18 19:45:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6178 to 6178. [2019-12-18 19:45:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2019-12-18 19:45:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 28552 transitions. [2019-12-18 19:45:23,930 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 28552 transitions. Word has length 5 [2019-12-18 19:45:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:23,931 INFO L462 AbstractCegarLoop]: Abstraction has 6178 states and 28552 transitions. [2019-12-18 19:45:23,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:23,931 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 28552 transitions. [2019-12-18 19:45:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:45:23,932 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:23,933 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:23,933 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:45:23,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:23,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1035578516, now seen corresponding path program 1 times [2019-12-18 19:45:23,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:23,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664043642] [2019-12-18 19:45:23,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:23,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664043642] [2019-12-18 19:45:23,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:23,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:45:23,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955652219] [2019-12-18 19:45:23,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:23,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:23,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:23,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:23,965 INFO L87 Difference]: Start difference. First operand 6178 states and 28552 transitions. Second operand 3 states. [2019-12-18 19:45:24,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:24,008 INFO L93 Difference]: Finished difference Result 1170 states and 3867 transitions. [2019-12-18 19:45:24,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:24,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 19:45:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:24,023 INFO L225 Difference]: With dead ends: 1170 [2019-12-18 19:45:24,031 INFO L226 Difference]: Without dead ends: 1170 [2019-12-18 19:45:24,032 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 [2019-12-18 19:45:24,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-12-18 19:45:24,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 918. [2019-12-18 19:45:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-12-18 19:45:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3069 transitions. [2019-12-18 19:45:24,070 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3069 transitions. Word has length 12 [2019-12-18 19:45:24,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:24,070 INFO L462 AbstractCegarLoop]: Abstraction has 918 states and 3069 transitions. [2019-12-18 19:45:24,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3069 transitions. [2019-12-18 19:45:24,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 19:45:24,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:24,078 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:24,078 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:45:24,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:24,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1220513135, now seen corresponding path program 1 times [2019-12-18 19:45:24,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:24,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472171357] [2019-12-18 19:45:24,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:24,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472171357] [2019-12-18 19:45:24,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:24,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:45:24,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704341171] [2019-12-18 19:45:24,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:45:24,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:24,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:45:24,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:45:24,188 INFO L87 Difference]: Start difference. First operand 918 states and 3069 transitions. Second operand 5 states. [2019-12-18 19:45:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:24,358 INFO L93 Difference]: Finished difference Result 1834 states and 6049 transitions. [2019-12-18 19:45:24,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:45:24,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 19:45:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:24,374 INFO L225 Difference]: With dead ends: 1834 [2019-12-18 19:45:24,374 INFO L226 Difference]: Without dead ends: 1834 [2019-12-18 19:45:24,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 19:45:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-12-18 19:45:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1582. [2019-12-18 19:45:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-12-18 19:45:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5251 transitions. [2019-12-18 19:45:24,523 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5251 transitions. Word has length 14 [2019-12-18 19:45:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:24,523 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 5251 transitions. [2019-12-18 19:45:24,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:45:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5251 transitions. [2019-12-18 19:45:24,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 19:45:24,525 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:24,525 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:24,526 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:45:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:24,526 INFO L82 PathProgramCache]: Analyzing trace with hash -235861924, now seen corresponding path program 1 times [2019-12-18 19:45:24,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:24,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297179616] [2019-12-18 19:45:24,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:24,554 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:45:24,554 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:45:24,554 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:45:24,554 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-18 19:45:24,565 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,565 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,565 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,565 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,565 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,566 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,566 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,566 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,566 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,566 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,567 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,567 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,567 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,567 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,567 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,567 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,568 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,568 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,568 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,568 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,568 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,568 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,569 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,569 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,569 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,569 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,570 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,570 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,570 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,570 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,570 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,571 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,571 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,571 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,571 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,572 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,572 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,572 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,572 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,572 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,573 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,573 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,573 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,574 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,574 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,574 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,575 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,575 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,576 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,576 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,577 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,578 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,578 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,580 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,580 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,582 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,582 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,584 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,584 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,585 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,585 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,586 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,587 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,587 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:24,588 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 19:45:24,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:45:24,589 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:45:24,589 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:45:24,589 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:45:24,589 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:45:24,589 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:45:24,589 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:45:24,589 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:45:24,591 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 116 transitions [2019-12-18 19:45:24,591 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-18 19:45:24,606 INFO L126 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-18 19:45:24,607 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:24,609 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 268 event pairs. 56/148 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-18 19:45:24,615 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 113 places, 116 transitions [2019-12-18 19:45:24,628 INFO L126 PetriNetUnfolder]: 16/114 cut-off events. [2019-12-18 19:45:24,629 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:24,631 INFO L76 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 16/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 268 event pairs. 56/148 useless extension candidates. Maximal degree in co-relation 134. Up to 10 conditions per place. [2019-12-18 19:45:24,638 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3330 [2019-12-18 19:45:24,638 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:45:25,276 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9271 [2019-12-18 19:45:25,276 INFO L214 etLargeBlockEncoding]: Total number of compositions: 62 [2019-12-18 19:45:25,277 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 63 transitions [2019-12-18 19:45:48,267 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 95237 states. [2019-12-18 19:45:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 95237 states. [2019-12-18 19:45:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-18 19:45:48,267 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:48,268 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-18 19:45:48,268 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]=== [2019-12-18 19:45:48,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:48,268 INFO L82 PathProgramCache]: Analyzing trace with hash 697118454, now seen corresponding path program 1 times [2019-12-18 19:45:48,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:48,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027399406] [2019-12-18 19:45:48,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:48,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027399406] [2019-12-18 19:45:48,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:48,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:45:48,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522304742] [2019-12-18 19:45:48,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:48,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:48,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:48,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:48,309 INFO L87 Difference]: Start difference. First operand 95237 states. Second operand 3 states. [2019-12-18 19:45:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:48,706 INFO L93 Difference]: Finished difference Result 40788 states and 229180 transitions. [2019-12-18 19:45:48,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:48,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-18 19:45:48,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:49,017 INFO L225 Difference]: With dead ends: 40788 [2019-12-18 19:45:49,017 INFO L226 Difference]: Without dead ends: 40788 [2019-12-18 19:45:49,017 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 [2019-12-18 19:45:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40788 states. [2019-12-18 19:45:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40788 to 40788. [2019-12-18 19:45:53,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40788 states. [2019-12-18 19:45:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40788 states to 40788 states and 229180 transitions. [2019-12-18 19:45:54,086 INFO L78 Accepts]: Start accepts. Automaton has 40788 states and 229180 transitions. Word has length 5 [2019-12-18 19:45:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:54,086 INFO L462 AbstractCegarLoop]: Abstraction has 40788 states and 229180 transitions. [2019-12-18 19:45:54,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 40788 states and 229180 transitions. [2019-12-18 19:45:54,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 19:45:54,087 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:54,087 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:54,088 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]=== [2019-12-18 19:45:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:54,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1504057243, now seen corresponding path program 1 times [2019-12-18 19:45:54,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:54,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856480354] [2019-12-18 19:45:54,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:54,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856480354] [2019-12-18 19:45:54,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:54,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:45:54,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067797038] [2019-12-18 19:45:54,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:45:54,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:54,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:45:54,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:45:54,123 INFO L87 Difference]: Start difference. First operand 40788 states and 229180 transitions. Second operand 3 states. [2019-12-18 19:45:54,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:54,164 INFO L93 Difference]: Finished difference Result 3144 states and 11932 transitions. [2019-12-18 19:45:54,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:45:54,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-18 19:45:54,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:54,180 INFO L225 Difference]: With dead ends: 3144 [2019-12-18 19:45:54,181 INFO L226 Difference]: Without dead ends: 3144 [2019-12-18 19:45:54,181 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 [2019-12-18 19:45:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2019-12-18 19:45:54,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2428. [2019-12-18 19:45:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2019-12-18 19:45:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 9334 transitions. [2019-12-18 19:45:56,420 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 9334 transitions. Word has length 12 [2019-12-18 19:45:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:56,420 INFO L462 AbstractCegarLoop]: Abstraction has 2428 states and 9334 transitions. [2019-12-18 19:45:56,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:45:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 9334 transitions. [2019-12-18 19:45:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-18 19:45:56,421 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:56,421 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:56,421 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]=== [2019-12-18 19:45:56,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:56,422 INFO L82 PathProgramCache]: Analyzing trace with hash -559629700, now seen corresponding path program 1 times [2019-12-18 19:45:56,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:56,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169580678] [2019-12-18 19:45:56,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:45:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 19:45:56,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169580678] [2019-12-18 19:45:56,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:45:56,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:45:56,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142387683] [2019-12-18 19:45:56,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:45:56,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:45:56,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:45:56,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:45:56,476 INFO L87 Difference]: Start difference. First operand 2428 states and 9334 transitions. Second operand 5 states. [2019-12-18 19:45:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:45:56,604 INFO L93 Difference]: Finished difference Result 4948 states and 18750 transitions. [2019-12-18 19:45:56,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:45:56,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-18 19:45:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:45:56,628 INFO L225 Difference]: With dead ends: 4948 [2019-12-18 19:45:56,629 INFO L226 Difference]: Without dead ends: 4948 [2019-12-18 19:45:56,629 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-18 19:45:56,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4948 states. [2019-12-18 19:45:56,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4948 to 4232. [2019-12-18 19:45:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4232 states. [2019-12-18 19:45:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 16152 transitions. [2019-12-18 19:45:56,741 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 16152 transitions. Word has length 14 [2019-12-18 19:45:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:45:56,742 INFO L462 AbstractCegarLoop]: Abstraction has 4232 states and 16152 transitions. [2019-12-18 19:45:56,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:45:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 16152 transitions. [2019-12-18 19:45:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-18 19:45:56,746 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:45:56,746 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:45:56,746 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]=== [2019-12-18 19:45:56,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:45:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash 433232067, now seen corresponding path program 1 times [2019-12-18 19:45:56,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:45:56,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329511680] [2019-12-18 19:45:56,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:45:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-18 19:45:56,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-18 19:45:56,780 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-18 19:45:56,780 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-18 19:45:56,780 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-18 19:45:56,797 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,797 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,797 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,798 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,798 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,798 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,799 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,799 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,799 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,800 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,800 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,800 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,801 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,801 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,801 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,802 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,802 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,802 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,802 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,803 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,803 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,803 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,803 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,804 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,804 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,804 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,812 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,813 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,813 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,814 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,815 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,815 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,815 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,815 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,816 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,816 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,817 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,817 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,818 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,819 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,819 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,819 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,820 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,820 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,820 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,821 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,821 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,821 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,821 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,822 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,822 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,822 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,823 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,824 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,824 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,824 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,825 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,826 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,826 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,826 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,827 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,828 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,828 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,830 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,830 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,831 WARN L315 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,831 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,833 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,833 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,833 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,835 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,836 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,838 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,838 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,843 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,843 WARN L315 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:45:56,844 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-18 19:45:56,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:45:56,845 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:45:56,845 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:45:56,845 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:45:56,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:45:56,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:45:56,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:45:56,846 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:45:56,847 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 139 transitions [2019-12-18 19:45:56,848 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-18 19:45:56,868 INFO L126 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-18 19:45:56,868 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:56,871 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs. 80/188 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-18 19:45:56,882 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions [2019-12-18 19:45:56,902 INFO L126 PetriNetUnfolder]: 19/134 cut-off events. [2019-12-18 19:45:56,902 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:45:56,906 INFO L76 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs. 80/188 useless extension candidates. Maximal degree in co-relation 161. Up to 12 conditions per place. [2019-12-18 19:45:56,916 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4652 [2019-12-18 19:45:56,916 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 19:45:57,596 INFO L206 etLargeBlockEncoding]: Checked pairs total: 15559 [2019-12-18 19:45:57,597 INFO L214 etLargeBlockEncoding]: Total number of compositions: 75 [2019-12-18 19:45:57,597 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 76 transitions Received shutdown request... [2019-12-18 19:49:40,579 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-18 19:49:40,582 WARN L227 ceAbstractionStarter]: Timeout [2019-12-18 19:49:40,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:49:40 BasicIcfg [2019-12-18 19:49:40,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:49:40,585 INFO L168 Benchmark]: Toolchain (without parser) took 262431.75 ms. Allocated memory was 145.2 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 100.3 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2019-12-18 19:49:40,586 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 19:49:40,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.08 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 162.1 MB in the end (delta: -61.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 19:49:40,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.69 ms. Allocated memory is still 202.9 MB. Free memory was 162.1 MB in the beginning and 160.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:49:40,588 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 19:49:40,589 INFO L168 Benchmark]: RCFGBuilder took 387.45 ms. Allocated memory is still 202.9 MB. Free memory was 158.3 MB in the beginning and 139.7 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:49:40,590 INFO L168 Benchmark]: TraceAbstraction took 261279.16 ms. Allocated memory was 202.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 139.7 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2019-12-18 19:49:40,594 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.08 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 162.1 MB in the end (delta: -61.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.69 ms. Allocated memory is still 202.9 MB. Free memory was 162.1 MB in the beginning and 160.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 202.9 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.45 ms. Allocated memory is still 202.9 MB. Free memory was 158.3 MB in the beginning and 139.7 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261279.16 ms. Allocated memory was 202.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 139.7 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 47 ProgramPointsBefore, 22 ProgramPointsAfterwards, 47 TransitionsBefore, 21 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 6 FixpointIterations, 11 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 277 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1213 CheckedPairsTotal, 26 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 69 ProgramPointsBefore, 37 ProgramPointsAfterwards, 70 TransitionsBefore, 37 TransitionsAfterwards, 1346 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 548 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3454 CheckedPairsTotal, 37 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.5s, 91 ProgramPointsBefore, 49 ProgramPointsAfterwards, 93 TransitionsBefore, 48 TransitionsAfterwards, 2228 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 766 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5410 CheckedPairsTotal, 50 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 113 ProgramPointsBefore, 63 ProgramPointsAfterwards, 116 TransitionsBefore, 63 TransitionsAfterwards, 3330 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 13 ConcurrentYvCompositions, 12 ChoiceCompositions, 1128 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 9271 CheckedPairsTotal, 62 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 135 ProgramPointsBefore, 76 ProgramPointsAfterwards, 139 TransitionsBefore, 76 TransitionsAfterwards, 4652 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 15 ConcurrentYvCompositions, 15 ChoiceCompositions, 1412 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 15559 CheckedPairsTotal, 75 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 706]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 706). Cancelled while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 76 places, 76 transitions. Already constructed 367406 states. Currently 62656 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 223.7s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown