/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:59:53,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:59:53,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:59:53,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:59:53,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:59:53,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:59:53,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:59:53,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:59:53,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:59:53,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:59:53,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:59:53,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:59:53,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:59:53,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:59:53,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:59:53,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:59:53,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:59:53,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:59:53,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:59:53,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:59:53,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:59:53,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:59:53,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:59:53,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:59:53,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 14:59:53,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 14:59:53,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 14:59:53,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 14:59:53,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 14:59:53,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 14:59:53,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:59:53,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:59:53,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:59:53,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:59:53,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:59:53,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:59:53,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:59:53,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:59:53,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:59:53,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:59:53,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:59:53,892 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-NoLbe.epf [2019-12-27 14:59:53,906 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:59:53,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:59:53,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:59:53,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:59:53,907 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:59:53,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:59:53,908 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:59:53,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:59:53,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:59:53,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:59:53,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:59:53,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:59:53,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:59:53,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:59:53,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:59:53,909 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:59:53,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:59:53,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:59:53,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:59:53,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:59:53,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:59:53,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:59:53,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:59:53,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:59:53,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:59:53,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:59:53,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:59:53,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:59:53,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:59:53,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:59:54,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:59:54,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:59:54,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:59:54,203 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:59:54,203 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:59:54,204 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2019-12-27 14:59:54,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5af1ff128/181c1c293bc24588b6f451376143ca8b/FLAG30a7bd656 [2019-12-27 14:59:54,813 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:59:54,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2019-12-27 14:59:54,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5af1ff128/181c1c293bc24588b6f451376143ca8b/FLAG30a7bd656 [2019-12-27 14:59:55,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5af1ff128/181c1c293bc24588b6f451376143ca8b [2019-12-27 14:59:55,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:59:55,191 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:59:55,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:59:55,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:59:55,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:59:55,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2087fe27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55, skipping insertion in model container [2019-12-27 14:59:55,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:59:55,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:59:55,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:59:55,755 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:59:55,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:59:55,924 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:59:55,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55 WrapperNode [2019-12-27 14:59:55,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:59:55,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:59:55,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:59:55,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:59:55,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:59:55,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:59:55,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:59:55,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:59:55,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:55,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... [2019-12-27 14:59:56,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:59:56,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:59:56,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:59:56,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:59:56,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:59:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 14:59:56,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 14:59:56,068 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 14:59:56,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 14:59:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:59:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:59:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:59:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:59:56,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:59:56,071 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 14:59:56,392 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:59:56,392 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-27 14:59:56,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:59:56 BoogieIcfgContainer [2019-12-27 14:59:56,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:59:56,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:59:56,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:59:56,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:59:56,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:59:55" (1/3) ... [2019-12-27 14:59:56,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5465cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:59:56, skipping insertion in model container [2019-12-27 14:59:56,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:59:55" (2/3) ... [2019-12-27 14:59:56,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5465cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:59:56, skipping insertion in model container [2019-12-27 14:59:56,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:59:56" (3/3) ... [2019-12-27 14:59:56,402 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2019-12-27 14:59:56,411 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:59:56,411 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:59:56,418 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:59:56,419 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:59:56,443 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,443 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,444 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,444 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,444 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,445 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,445 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,452 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,452 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,453 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,459 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,460 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:56,473 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:59:56,489 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:59:56,489 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:59:56,489 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:59:56,489 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:59:56,489 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:59:56,489 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:59:56,490 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:59:56,490 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:59:56,501 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions [2019-12-27 14:59:56,565 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1000 states. [2019-12-27 14:59:56,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2019-12-27 14:59:56,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 14:59:56,577 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:59:56,578 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:59:56,579 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 14:59:56,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:59:56,586 INFO L82 PathProgramCache]: Analyzing trace with hash -545237580, now seen corresponding path program 1 times [2019-12-27 14:59:56,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:59:56,597 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227154441] [2019-12-27 14:59:56,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:59:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:59:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:59:56,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227154441] [2019-12-27 14:59:56,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:59:56,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:59:56,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450247316] [2019-12-27 14:59:56,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:59:56,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:59:56,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:59:56,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:59:56,955 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2019-12-27 14:59:57,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:59:57,172 INFO L93 Difference]: Finished difference Result 1006 states and 2468 transitions. [2019-12-27 14:59:57,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 14:59:57,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 14:59:57,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:59:57,204 INFO L225 Difference]: With dead ends: 1006 [2019-12-27 14:59:57,205 INFO L226 Difference]: Without dead ends: 678 [2019-12-27 14:59:57,207 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 14:59:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-12-27 14:59:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 646. [2019-12-27 14:59:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-12-27 14:59:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1560 transitions. [2019-12-27 14:59:57,320 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1560 transitions. Word has length 25 [2019-12-27 14:59:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:59:57,321 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 1560 transitions. [2019-12-27 14:59:57,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:59:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1560 transitions. [2019-12-27 14:59:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 14:59:57,323 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:59:57,324 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:59:57,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 14:59:57,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:59:57,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1722225356, now seen corresponding path program 1 times [2019-12-27 14:59:57,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:59:57,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780333942] [2019-12-27 14:59:57,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:59:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 14:59:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 14:59:57,439 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 14:59:57,439 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 14:59:57,441 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 14:59:57,441 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 14:59:57,451 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,452 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,452 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,452 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,452 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,453 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,453 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,454 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,454 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,454 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,454 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,455 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,455 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,455 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,455 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,456 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,456 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,456 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,456 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,456 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,457 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,457 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,457 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,458 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,460 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,460 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,460 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,460 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,460 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,462 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,463 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,463 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,463 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,463 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,465 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,465 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,468 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,468 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,468 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,468 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,469 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,469 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:57,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 14:59:57,472 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:59:57,472 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:59:57,472 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:59:57,472 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:59:57,472 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:59:57,472 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:59:57,473 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:59:57,473 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:59:57,478 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 69 transitions [2019-12-27 14:59:57,752 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6130 states. [2019-12-27 14:59:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states. [2019-12-27 14:59:57,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 14:59:57,757 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:59:57,757 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:59:57,758 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:59:57,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:59:57,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1186811608, now seen corresponding path program 1 times [2019-12-27 14:59:57,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:59:57,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248881536] [2019-12-27 14:59:57,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:59:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:59:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:59:57,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248881536] [2019-12-27 14:59:57,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:59:57,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:59:57,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580580206] [2019-12-27 14:59:57,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:59:57,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:59:57,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:59:57,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:59:57,875 INFO L87 Difference]: Start difference. First operand 6130 states. Second operand 6 states. [2019-12-27 14:59:58,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:59:58,104 INFO L93 Difference]: Finished difference Result 7222 states and 23490 transitions. [2019-12-27 14:59:58,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 14:59:58,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 14:59:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:59:58,226 INFO L225 Difference]: With dead ends: 7222 [2019-12-27 14:59:58,226 INFO L226 Difference]: Without dead ends: 5134 [2019-12-27 14:59:58,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 14:59:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2019-12-27 14:59:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4786. [2019-12-27 14:59:58,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4786 states. [2019-12-27 14:59:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 15490 transitions. [2019-12-27 14:59:58,469 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 15490 transitions. Word has length 25 [2019-12-27 14:59:58,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:59:58,470 INFO L462 AbstractCegarLoop]: Abstraction has 4786 states and 15490 transitions. [2019-12-27 14:59:58,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:59:58,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 15490 transitions. [2019-12-27 14:59:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:59:58,474 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:59:58,474 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:59:58,475 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:59:58,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:59:58,475 INFO L82 PathProgramCache]: Analyzing trace with hash -433353734, now seen corresponding path program 1 times [2019-12-27 14:59:58,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:59:58,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686732657] [2019-12-27 14:59:58,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:59:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:59:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 14:59:58,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686732657] [2019-12-27 14:59:58,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:59:58,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:59:58,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257953377] [2019-12-27 14:59:58,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:59:58,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:59:58,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:59:58,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:59:58,648 INFO L87 Difference]: Start difference. First operand 4786 states and 15490 transitions. Second operand 8 states. [2019-12-27 14:59:59,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:59:59,159 INFO L93 Difference]: Finished difference Result 6726 states and 20872 transitions. [2019-12-27 14:59:59,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 14:59:59,160 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 14:59:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:59:59,207 INFO L225 Difference]: With dead ends: 6726 [2019-12-27 14:59:59,207 INFO L226 Difference]: Without dead ends: 6134 [2019-12-27 14:59:59,208 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 14:59:59,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2019-12-27 14:59:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 4028. [2019-12-27 14:59:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4028 states. [2019-12-27 14:59:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 13063 transitions. [2019-12-27 14:59:59,365 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 13063 transitions. Word has length 34 [2019-12-27 14:59:59,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:59:59,366 INFO L462 AbstractCegarLoop]: Abstraction has 4028 states and 13063 transitions. [2019-12-27 14:59:59,366 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:59:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 13063 transitions. [2019-12-27 14:59:59,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 14:59:59,369 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:59:59,370 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 14:59:59,370 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:59:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:59:59,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1363955682, now seen corresponding path program 1 times [2019-12-27 14:59:59,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:59:59,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931917433] [2019-12-27 14:59:59,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:59:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 14:59:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 14:59:59,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 14:59:59,419 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 14:59:59,419 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 14:59:59,420 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 14:59:59,432 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,437 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,437 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,437 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,437 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,438 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,438 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,439 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,439 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,439 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,439 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,440 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,440 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,440 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,440 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,440 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,441 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,441 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,442 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,442 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,442 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,442 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,443 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,443 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,443 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,443 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,443 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,444 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,444 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,444 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,444 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,445 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,445 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,445 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,445 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,446 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,446 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,447 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,447 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,448 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,448 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,449 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,449 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,449 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,449 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,449 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,452 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,453 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,453 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,456 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,456 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,457 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,457 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,457 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,460 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,461 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,461 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,461 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,461 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,462 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,465 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,465 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,466 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,466 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,469 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,469 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,470 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,470 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,470 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,470 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:59:59,472 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 14:59:59,473 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:59:59,473 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:59:59,473 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:59:59,473 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:59:59,473 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:59:59,473 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:59:59,474 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:59:59,474 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:59:59,481 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 85 transitions [2019-12-27 15:00:03,609 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36910 states. [2019-12-27 15:00:03,609 INFO L276 IsEmpty]: Start isEmpty. Operand 36910 states. [2019-12-27 15:00:03,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 15:00:03,610 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:00:03,610 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:00:03,611 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:00:03,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:00:03,611 INFO L82 PathProgramCache]: Analyzing trace with hash 458727436, now seen corresponding path program 1 times [2019-12-27 15:00:03,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:00:03,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862797864] [2019-12-27 15:00:03,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:00:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:00:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:00:03,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862797864] [2019-12-27 15:00:03,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:00:03,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 15:00:03,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380684975] [2019-12-27 15:00:03,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 15:00:03,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:00:03,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 15:00:03,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:00:03,692 INFO L87 Difference]: Start difference. First operand 36910 states. Second operand 6 states. [2019-12-27 15:00:04,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:00:04,261 INFO L93 Difference]: Finished difference Result 48046 states and 195962 transitions. [2019-12-27 15:00:04,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:00:04,261 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 15:00:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:00:04,472 INFO L225 Difference]: With dead ends: 48046 [2019-12-27 15:00:04,472 INFO L226 Difference]: Without dead ends: 34886 [2019-12-27 15:00:04,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:00:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34886 states. [2019-12-27 15:00:06,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34886 to 32146. [2019-12-27 15:00:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32146 states. [2019-12-27 15:00:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32146 states to 32146 states and 131030 transitions. [2019-12-27 15:00:06,870 INFO L78 Accepts]: Start accepts. Automaton has 32146 states and 131030 transitions. Word has length 25 [2019-12-27 15:00:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:00:06,870 INFO L462 AbstractCegarLoop]: Abstraction has 32146 states and 131030 transitions. [2019-12-27 15:00:06,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 15:00:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states and 131030 transitions. [2019-12-27 15:00:06,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 15:00:06,873 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:00:06,874 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:00:06,874 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:00:06,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:00:06,874 INFO L82 PathProgramCache]: Analyzing trace with hash -811555619, now seen corresponding path program 1 times [2019-12-27 15:00:06,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:00:06,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342411539] [2019-12-27 15:00:06,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:00:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:00:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:00:06,962 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342411539] [2019-12-27 15:00:06,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:00:06,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:00:06,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798343664] [2019-12-27 15:00:06,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:00:06,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:00:06,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:00:06,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:00:06,964 INFO L87 Difference]: Start difference. First operand 32146 states and 131030 transitions. Second operand 8 states. [2019-12-27 15:00:07,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:00:07,650 INFO L93 Difference]: Finished difference Result 55450 states and 215966 transitions. [2019-12-27 15:00:07,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:00:07,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 15:00:07,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:00:07,817 INFO L225 Difference]: With dead ends: 55450 [2019-12-27 15:00:07,818 INFO L226 Difference]: Without dead ends: 52042 [2019-12-27 15:00:07,818 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:00:08,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52042 states. [2019-12-27 15:00:10,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52042 to 30648. [2019-12-27 15:00:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30648 states. [2019-12-27 15:00:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 124237 transitions. [2019-12-27 15:00:10,670 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 124237 transitions. Word has length 34 [2019-12-27 15:00:10,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:00:10,671 INFO L462 AbstractCegarLoop]: Abstraction has 30648 states and 124237 transitions. [2019-12-27 15:00:10,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:00:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 124237 transitions. [2019-12-27 15:00:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-27 15:00:10,678 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:00:10,679 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:00:10,679 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:00:10,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:00:10,679 INFO L82 PathProgramCache]: Analyzing trace with hash 330402858, now seen corresponding path program 1 times [2019-12-27 15:00:10,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:00:10,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412881992] [2019-12-27 15:00:10,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:00:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:00:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-27 15:00:11,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412881992] [2019-12-27 15:00:11,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:00:11,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:00:11,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999981906] [2019-12-27 15:00:11,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:00:11,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:00:11,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:00:11,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:00:11,026 INFO L87 Difference]: Start difference. First operand 30648 states and 124237 transitions. Second operand 8 states. [2019-12-27 15:00:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:00:11,588 INFO L93 Difference]: Finished difference Result 55918 states and 216366 transitions. [2019-12-27 15:00:11,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:00:11,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-27 15:00:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:00:11,875 INFO L225 Difference]: With dead ends: 55918 [2019-12-27 15:00:11,875 INFO L226 Difference]: Without dead ends: 52446 [2019-12-27 15:00:11,876 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:00:12,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52446 states. [2019-12-27 15:00:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52446 to 28812. [2019-12-27 15:00:13,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28812 states. [2019-12-27 15:00:13,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28812 states to 28812 states and 115895 transitions. [2019-12-27 15:00:13,471 INFO L78 Accepts]: Start accepts. Automaton has 28812 states and 115895 transitions. Word has length 41 [2019-12-27 15:00:13,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:00:13,481 INFO L462 AbstractCegarLoop]: Abstraction has 28812 states and 115895 transitions. [2019-12-27 15:00:13,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:00:13,481 INFO L276 IsEmpty]: Start isEmpty. Operand 28812 states and 115895 transitions. [2019-12-27 15:00:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-27 15:00:13,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:00:13,504 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:00:13,505 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:00:13,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:00:13,505 INFO L82 PathProgramCache]: Analyzing trace with hash 169292204, now seen corresponding path program 1 times [2019-12-27 15:00:13,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:00:13,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382512488] [2019-12-27 15:00:13,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:00:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:00:13,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:00:13,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382512488] [2019-12-27 15:00:13,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452011197] [2019-12-27 15:00:13,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:00:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:00:13,695 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-27 15:00:13,699 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 15:00:13,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-27 15:00:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:00:13,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-27 15:00:13,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-27 15:00:13,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807821234] [2019-12-27 15:00:13,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-27 15:00:13,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:00:13,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-27 15:00:13,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-12-27 15:00:13,916 INFO L87 Difference]: Start difference. First operand 28812 states and 115895 transitions. Second operand 18 states. [2019-12-27 15:00:16,456 WARN L192 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2019-12-27 15:00:16,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:00:16,990 INFO L93 Difference]: Finished difference Result 60118 states and 228798 transitions. [2019-12-27 15:00:16,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-27 15:00:16,990 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2019-12-27 15:00:16,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:00:17,281 INFO L225 Difference]: With dead ends: 60118 [2019-12-27 15:00:17,282 INFO L226 Difference]: Without dead ends: 58630 [2019-12-27 15:00:17,283 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=720, Invalid=2586, Unknown=0, NotChecked=0, Total=3306 [2019-12-27 15:00:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58630 states. [2019-12-27 15:00:18,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58630 to 28160. [2019-12-27 15:00:18,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28160 states. [2019-12-27 15:00:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28160 states to 28160 states and 113373 transitions. [2019-12-27 15:00:18,896 INFO L78 Accepts]: Start accepts. Automaton has 28160 states and 113373 transitions. Word has length 45 [2019-12-27 15:00:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:00:18,896 INFO L462 AbstractCegarLoop]: Abstraction has 28160 states and 113373 transitions. [2019-12-27 15:00:18,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-27 15:00:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 28160 states and 113373 transitions. [2019-12-27 15:00:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-27 15:00:18,906 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:00:18,907 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:00:19,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 15:00:19,110 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:00:19,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:00:19,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1634131850, now seen corresponding path program 2 times [2019-12-27 15:00:19,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:00:19,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237606446] [2019-12-27 15:00:19,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:00:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:00:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-27 15:00:19,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237606446] [2019-12-27 15:00:19,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:00:19,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-27 15:00:19,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801467037] [2019-12-27 15:00:19,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-27 15:00:19,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:00:19,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-27 15:00:19,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-27 15:00:19,253 INFO L87 Difference]: Start difference. First operand 28160 states and 113373 transitions. Second operand 10 states. [2019-12-27 15:00:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:00:20,445 INFO L93 Difference]: Finished difference Result 59086 states and 224854 transitions. [2019-12-27 15:00:20,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-27 15:00:20,446 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-27 15:00:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:00:20,588 INFO L225 Difference]: With dead ends: 59086 [2019-12-27 15:00:20,589 INFO L226 Difference]: Without dead ends: 57454 [2019-12-27 15:00:20,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2019-12-27 15:00:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57454 states. [2019-12-27 15:00:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57454 to 25152. [2019-12-27 15:00:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25152 states. [2019-12-27 15:00:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25152 states to 25152 states and 102287 transitions. [2019-12-27 15:00:21,937 INFO L78 Accepts]: Start accepts. Automaton has 25152 states and 102287 transitions. Word has length 45 [2019-12-27 15:00:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:00:21,938 INFO L462 AbstractCegarLoop]: Abstraction has 25152 states and 102287 transitions. [2019-12-27 15:00:21,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-27 15:00:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 25152 states and 102287 transitions. [2019-12-27 15:00:21,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-27 15:00:21,947 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:00:21,947 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:00:21,947 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 15:00:21,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:00:21,947 INFO L82 PathProgramCache]: Analyzing trace with hash -119237525, now seen corresponding path program 1 times [2019-12-27 15:00:21,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:00:21,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196587641] [2019-12-27 15:00:21,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:00:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:00:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 15:00:21,981 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 15:00:21,981 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 15:00:21,981 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 15:00:21,981 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 15:00:21,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,994 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,994 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,995 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,995 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,996 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,996 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,996 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,997 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,997 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,998 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,998 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:21,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,000 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,001 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,001 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,002 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,003 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,004 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,004 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,005 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,005 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,005 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,005 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,012 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,014 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,015 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,015 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,015 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,015 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,017 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,017 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,017 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,017 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,017 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,020 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,020 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,020 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,020 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,020 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,021 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,022 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,022 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,031 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,032 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,032 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 15:00:22,034 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 15:00:22,034 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 15:00:22,034 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 15:00:22,034 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 15:00:22,034 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 15:00:22,034 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 15:00:22,034 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 15:00:22,035 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 15:00:22,035 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 15:00:22,039 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 101 transitions [2019-12-27 15:02:01,692 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221590 states. [2019-12-27 15:02:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 221590 states. [2019-12-27 15:02:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 15:02:01,693 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:01,693 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:01,693 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:02:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:01,694 INFO L82 PathProgramCache]: Analyzing trace with hash 96412256, now seen corresponding path program 1 times [2019-12-27 15:02:01,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:01,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499959061] [2019-12-27 15:02:01,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:02:01,733 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499959061] [2019-12-27 15:02:01,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:01,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 15:02:01,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972055596] [2019-12-27 15:02:01,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 15:02:01,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:01,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 15:02:01,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-27 15:02:01,735 INFO L87 Difference]: Start difference. First operand 221590 states. Second operand 6 states. [2019-12-27 15:02:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:11,368 INFO L93 Difference]: Finished difference Result 307102 states and 1510066 transitions. [2019-12-27 15:02:11,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-27 15:02:11,368 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 15:02:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:12,138 INFO L225 Difference]: With dead ends: 307102 [2019-12-27 15:02:12,139 INFO L226 Difference]: Without dead ends: 225462 [2019-12-27 15:02:12,139 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-27 15:02:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225462 states. [2019-12-27 15:02:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225462 to 206386. [2019-12-27 15:02:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206386 states. [2019-12-27 15:02:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206386 states to 206386 states and 1016190 transitions. [2019-12-27 15:02:33,588 INFO L78 Accepts]: Start accepts. Automaton has 206386 states and 1016190 transitions. Word has length 25 [2019-12-27 15:02:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:02:33,589 INFO L462 AbstractCegarLoop]: Abstraction has 206386 states and 1016190 transitions. [2019-12-27 15:02:33,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 15:02:33,589 INFO L276 IsEmpty]: Start isEmpty. Operand 206386 states and 1016190 transitions. [2019-12-27 15:02:33,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 15:02:33,591 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:02:33,591 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:02:33,591 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:02:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:02:33,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1447088652, now seen corresponding path program 1 times [2019-12-27 15:02:33,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:02:33,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585415003] [2019-12-27 15:02:33,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:02:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:02:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 15:02:33,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585415003] [2019-12-27 15:02:33,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:02:33,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:02:33,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714867681] [2019-12-27 15:02:33,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:02:33,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:02:33,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:02:33,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:02:33,668 INFO L87 Difference]: Start difference. First operand 206386 states and 1016190 transitions. Second operand 8 states. [2019-12-27 15:02:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:02:45,324 INFO L93 Difference]: Finished difference Result 395234 states and 1867854 transitions. [2019-12-27 15:02:45,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:02:45,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 15:02:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 15:02:47,759 INFO L225 Difference]: With dead ends: 395234 [2019-12-27 15:02:47,760 INFO L226 Difference]: Without dead ends: 373906 [2019-12-27 15:02:47,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:02:51,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373906 states. [2019-12-27 15:03:07,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373906 to 209024. [2019-12-27 15:03:07,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209024 states. [2019-12-27 15:03:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209024 states to 209024 states and 1021861 transitions. [2019-12-27 15:03:08,874 INFO L78 Accepts]: Start accepts. Automaton has 209024 states and 1021861 transitions. Word has length 34 [2019-12-27 15:03:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 15:03:08,875 INFO L462 AbstractCegarLoop]: Abstraction has 209024 states and 1021861 transitions. [2019-12-27 15:03:08,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 15:03:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 209024 states and 1021861 transitions. [2019-12-27 15:03:08,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-27 15:03:08,878 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 15:03:08,878 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 15:03:08,878 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 15:03:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 15:03:08,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1585020680, now seen corresponding path program 1 times [2019-12-27 15:03:08,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 15:03:08,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764492225] [2019-12-27 15:03:08,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 15:03:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 15:03:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-27 15:03:08,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764492225] [2019-12-27 15:03:08,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 15:03:08,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 15:03:08,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093860639] [2019-12-27 15:03:08,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 15:03:08,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 15:03:08,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 15:03:08,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 15:03:08,945 INFO L87 Difference]: Start difference. First operand 209024 states and 1021861 transitions. Second operand 8 states. [2019-12-27 15:03:19,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 15:03:19,417 INFO L93 Difference]: Finished difference Result 417630 states and 1962704 transitions. [2019-12-27 15:03:19,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-27 15:03:19,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-27 15:03:19,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2019-12-27 15:03:28,914 INFO L225 Difference]: With dead ends: 417630 [2019-12-27 15:03:28,915 INFO L226 Difference]: Without dead ends: 395982 [2019-12-27 15:03:28,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-27 15:03:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395982 states. [2019-12-27 15:03:32,617 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 15:03:32,621 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 15:03:32,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:03:32 BasicIcfg [2019-12-27 15:03:32,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 15:03:32,623 INFO L168 Benchmark]: Toolchain (without parser) took 217432.39 ms. Allocated memory was 144.7 MB in the beginning and 5.5 GB in the end (delta: 5.3 GB). Free memory was 101.4 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,624 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.83 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 161.1 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.06 ms. Allocated memory is still 201.3 MB. Free memory was 161.1 MB in the beginning and 158.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,626 INFO L168 Benchmark]: Boogie Preprocessor took 27.57 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 157.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,627 INFO L168 Benchmark]: RCFGBuilder took 392.43 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 138.1 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,628 INFO L168 Benchmark]: TraceAbstraction took 216226.56 ms. Allocated memory was 201.3 MB in the beginning and 5.5 GB in the end (delta: 5.3 GB). Free memory was 137.4 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2019-12-27 15:03:32,632 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.83 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.2 MB in the beginning and 161.1 MB in the end (delta: -59.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.06 ms. Allocated memory is still 201.3 MB. Free memory was 161.1 MB in the beginning and 158.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.57 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 157.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 392.43 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 138.1 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216226.56 ms. Allocated memory was 201.3 MB in the beginning and 5.5 GB in the end (delta: 5.3 GB). Free memory was 137.4 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 51 locations, 1 error locations. Result: TIMEOUT, OverallTime: 190.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 44.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 1197 SDslu, 1923 SDs, 0 SdLazy, 611 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221590occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 46.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 183958 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 12524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown