/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-fae578e [2019-12-19 05:55:27,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:55:27,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:55:27,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:55:27,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:55:27,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:55:27,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:55:27,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:55:27,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:55:27,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:55:27,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:55:27,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:55:27,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:55:27,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:55:27,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:55:27,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:55:27,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:55:27,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:55:27,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:55:27,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:55:27,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:55:27,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:55:27,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:55:27,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:55:27,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:55:27,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:55:27,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:55:27,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:55:27,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:55:27,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:55:27,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:55:27,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:55:27,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:55:27,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:55:27,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:55:27,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:55:27,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:55:27,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:55:27,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:55:27,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:55:27,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:55:27,924 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 [2019-12-19 05:55:27,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:55:27,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:55:27,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:55:27,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:55:27,962 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:55:27,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:55:27,963 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:55:27,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:55:27,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:55:27,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:55:27,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:55:27,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:55:27,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:55:27,965 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:55:27,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:55:27,965 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:55:27,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:55:27,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:55:27,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:55:27,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:55:27,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:55:27,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:55:27,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:55:27,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:55:27,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:55:27,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:55:27,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:55:27,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:55:27,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:55:27,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:55:28,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:55:28,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:55:28,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:55:28,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:55:28,258 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:55:28,259 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2019-12-19 05:55:28,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d21d36111/8a7f1e780e55437e9001610a1ef093a6/FLAG6a6af16a3 [2019-12-19 05:55:28,878 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:55:28,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2019-12-19 05:55:28,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d21d36111/8a7f1e780e55437e9001610a1ef093a6/FLAG6a6af16a3 [2019-12-19 05:55:29,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d21d36111/8a7f1e780e55437e9001610a1ef093a6 [2019-12-19 05:55:29,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:55:29,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:55:29,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:55:29,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:55:29,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:55:29,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552d560b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29, skipping insertion in model container [2019-12-19 05:55:29,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:55:29,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:55:29,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:55:29,734 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:55:29,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:55:29,882 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:55:29,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29 WrapperNode [2019-12-19 05:55:29,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:55:29,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:55:29,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:55:29,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:55:29,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:55:29,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:55:29,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:55:29,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:55:29,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (1/1) ... [2019-12-19 05:55:29,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:55:29,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:55:29,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:55:29,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:55:29,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (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 [2019-12-19 05:55:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-19 05:55:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-19 05:55:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-19 05:55:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-19 05:55:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:55:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:55:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:55:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:55:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:55:30,058 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:55:30,425 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:55:30,426 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-19 05:55:30,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:55:30 BoogieIcfgContainer [2019-12-19 05:55:30,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:55:30,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:55:30,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:55:30,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:55:30,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:55:29" (1/3) ... [2019-12-19 05:55:30,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b856bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:55:30, skipping insertion in model container [2019-12-19 05:55:30,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:55:29" (2/3) ... [2019-12-19 05:55:30,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b856bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:55:30, skipping insertion in model container [2019-12-19 05:55:30,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:55:30" (3/3) ... [2019-12-19 05:55:30,436 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2019-12-19 05:55:30,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:55:30,445 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:55:30,452 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:55:30,454 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:55:30,479 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,479 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,480 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,480 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,480 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,480 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,481 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,481 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,482 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,484 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,484 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,484 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,485 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,485 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,485 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,486 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,486 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,490 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,490 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,491 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,491 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,491 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,498 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,498 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,498 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,499 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,499 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:30,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:55:30,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:55:30,527 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:55:30,527 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:55:30,527 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:55:30,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:55:30,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:55:30,528 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:55:30,528 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:55:30,539 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions [2019-12-19 05:55:30,604 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1000 states. [2019-12-19 05:55:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2019-12-19 05:55:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:55:30,615 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:30,617 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] [2019-12-19 05:55:30,617 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 05:55:30,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:30,624 INFO L82 PathProgramCache]: Analyzing trace with hash -545237580, now seen corresponding path program 1 times [2019-12-19 05:55:30,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:30,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021210137] [2019-12-19 05:55:30,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:30,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021210137] [2019-12-19 05:55:30,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:30,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:55:30,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455334732] [2019-12-19 05:55:30,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:55:30,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:30,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:55:30,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:55:30,951 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2019-12-19 05:55:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:31,154 INFO L93 Difference]: Finished difference Result 1006 states and 2468 transitions. [2019-12-19 05:55:31,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:55:31,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:55:31,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:31,204 INFO L225 Difference]: With dead ends: 1006 [2019-12-19 05:55:31,204 INFO L226 Difference]: Without dead ends: 678 [2019-12-19 05:55:31,206 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 [2019-12-19 05:55:31,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-12-19 05:55:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 646. [2019-12-19 05:55:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-12-19 05:55:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1560 transitions. [2019-12-19 05:55:31,292 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1560 transitions. Word has length 25 [2019-12-19 05:55:31,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:31,292 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 1560 transitions. [2019-12-19 05:55:31,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:55:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1560 transitions. [2019-12-19 05:55:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:55:31,295 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:31,295 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] [2019-12-19 05:55:31,296 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 05:55:31,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:31,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1722225356, now seen corresponding path program 1 times [2019-12-19 05:55:31,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:31,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61734820] [2019-12-19 05:55:31,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:55:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:55:31,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:55:31,437 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:55:31,438 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-19 05:55:31,439 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-19 05:55:31,450 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,451 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,451 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,451 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,451 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,451 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,452 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,452 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,453 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,453 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,454 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,454 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,458 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,459 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,467 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,467 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,467 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,468 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,468 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,468 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,468 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,469 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,471 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,471 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,471 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,471 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,472 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,472 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,472 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,473 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,473 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,473 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,473 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,478 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,478 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,479 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,479 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,479 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,483 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,483 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,484 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,484 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,484 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,484 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,488 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,488 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,489 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,489 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:31,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 05:55:31,493 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:55:31,493 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:55:31,494 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:55:31,494 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:55:31,494 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:55:31,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:55:31,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:55:31,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:55:31,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 69 transitions [2019-12-19 05:55:31,777 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6130 states. [2019-12-19 05:55:31,778 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states. [2019-12-19 05:55:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:55:31,783 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:31,783 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] [2019-12-19 05:55:31,783 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:31,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1186811608, now seen corresponding path program 1 times [2019-12-19 05:55:31,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:31,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031756142] [2019-12-19 05:55:31,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:31,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031756142] [2019-12-19 05:55:31,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:31,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:55:31,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65287719] [2019-12-19 05:55:31,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:55:31,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:31,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:55:31,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:55:31,922 INFO L87 Difference]: Start difference. First operand 6130 states. Second operand 6 states. [2019-12-19 05:55:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:32,240 INFO L93 Difference]: Finished difference Result 7222 states and 23490 transitions. [2019-12-19 05:55:32,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:55:32,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:55:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:32,294 INFO L225 Difference]: With dead ends: 7222 [2019-12-19 05:55:32,295 INFO L226 Difference]: Without dead ends: 5134 [2019-12-19 05:55:32,295 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 [2019-12-19 05:55:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2019-12-19 05:55:32,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4786. [2019-12-19 05:55:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4786 states. [2019-12-19 05:55:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 15490 transitions. [2019-12-19 05:55:32,555 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 15490 transitions. Word has length 25 [2019-12-19 05:55:32,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:32,556 INFO L462 AbstractCegarLoop]: Abstraction has 4786 states and 15490 transitions. [2019-12-19 05:55:32,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:55:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 15490 transitions. [2019-12-19 05:55:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:55:32,561 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:32,561 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] [2019-12-19 05:55:32,562 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:32,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:32,562 INFO L82 PathProgramCache]: Analyzing trace with hash -433353734, now seen corresponding path program 1 times [2019-12-19 05:55:32,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:32,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354871111] [2019-12-19 05:55:32,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:32,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354871111] [2019-12-19 05:55:32,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:32,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:55:32,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815860419] [2019-12-19 05:55:32,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:55:32,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:32,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:55:32,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:55:32,748 INFO L87 Difference]: Start difference. First operand 4786 states and 15490 transitions. Second operand 8 states. [2019-12-19 05:55:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:33,436 INFO L93 Difference]: Finished difference Result 6726 states and 20872 transitions. [2019-12-19 05:55:33,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:55:33,437 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:55:33,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:33,501 INFO L225 Difference]: With dead ends: 6726 [2019-12-19 05:55:33,501 INFO L226 Difference]: Without dead ends: 6134 [2019-12-19 05:55:33,507 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 [2019-12-19 05:55:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2019-12-19 05:55:33,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 4028. [2019-12-19 05:55:33,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4028 states. [2019-12-19 05:55:33,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 13063 transitions. [2019-12-19 05:55:33,691 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 13063 transitions. Word has length 34 [2019-12-19 05:55:33,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:33,691 INFO L462 AbstractCegarLoop]: Abstraction has 4028 states and 13063 transitions. [2019-12-19 05:55:33,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:55:33,696 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 13063 transitions. [2019-12-19 05:55:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 05:55:33,701 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:33,701 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] [2019-12-19 05:55:33,701 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1363955682, now seen corresponding path program 1 times [2019-12-19 05:55:33,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:33,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76306109] [2019-12-19 05:55:33,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:55:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:55:33,800 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:55:33,801 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:55:33,801 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-19 05:55:33,801 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-19 05:55:33,830 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,834 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,835 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,836 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,837 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,837 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,837 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,837 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,837 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,837 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,838 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,838 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,838 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,838 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,838 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,838 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,839 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,839 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,839 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,840 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,840 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,841 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,841 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,842 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,843 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,843 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,843 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,843 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,843 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,843 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,844 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,844 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,844 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,844 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,845 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,845 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,845 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,845 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,845 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,847 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,847 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,847 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,847 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,848 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,849 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,849 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,849 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,850 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,850 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,852 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,852 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,852 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,852 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,853 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,853 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,855 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,855 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,856 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,856 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,856 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,856 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,858 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,858 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,859 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,859 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,859 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,859 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:33,861 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-19 05:55:33,861 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:55:33,861 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:55:33,861 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:55:33,862 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:55:33,862 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:55:33,862 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:55:33,862 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:55:33,862 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:55:33,864 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 85 transitions [2019-12-19 05:55:38,220 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36910 states. [2019-12-19 05:55:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 36910 states. [2019-12-19 05:55:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:55:38,221 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:38,221 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] [2019-12-19 05:55:38,221 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:38,223 INFO L82 PathProgramCache]: Analyzing trace with hash 458727436, now seen corresponding path program 1 times [2019-12-19 05:55:38,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:38,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895197661] [2019-12-19 05:55:38,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:38,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895197661] [2019-12-19 05:55:38,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:38,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:55:38,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609620693] [2019-12-19 05:55:38,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:55:38,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:38,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:55:38,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:55:38,301 INFO L87 Difference]: Start difference. First operand 36910 states. Second operand 6 states. [2019-12-19 05:55:39,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:39,092 INFO L93 Difference]: Finished difference Result 48046 states and 195962 transitions. [2019-12-19 05:55:39,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:55:39,092 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:55:39,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:39,509 INFO L225 Difference]: With dead ends: 48046 [2019-12-19 05:55:39,510 INFO L226 Difference]: Without dead ends: 34886 [2019-12-19 05:55:39,510 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 [2019-12-19 05:55:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34886 states. [2019-12-19 05:55:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34886 to 32146. [2019-12-19 05:55:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32146 states. [2019-12-19 05:55:41,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32146 states to 32146 states and 131030 transitions. [2019-12-19 05:55:41,785 INFO L78 Accepts]: Start accepts. Automaton has 32146 states and 131030 transitions. Word has length 25 [2019-12-19 05:55:41,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:41,786 INFO L462 AbstractCegarLoop]: Abstraction has 32146 states and 131030 transitions. [2019-12-19 05:55:41,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:55:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states and 131030 transitions. [2019-12-19 05:55:41,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:55:41,787 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:41,787 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] [2019-12-19 05:55:41,788 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:41,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:41,788 INFO L82 PathProgramCache]: Analyzing trace with hash -811555619, now seen corresponding path program 1 times [2019-12-19 05:55:41,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:41,789 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114029303] [2019-12-19 05:55:41,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:41,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:41,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114029303] [2019-12-19 05:55:41,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:41,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:55:41,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449413171] [2019-12-19 05:55:41,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:55:41,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:41,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:55:41,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:55:41,886 INFO L87 Difference]: Start difference. First operand 32146 states and 131030 transitions. Second operand 8 states. [2019-12-19 05:55:43,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:43,881 INFO L93 Difference]: Finished difference Result 55450 states and 215966 transitions. [2019-12-19 05:55:43,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:55:43,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:55:43,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:44,148 INFO L225 Difference]: With dead ends: 55450 [2019-12-19 05:55:44,149 INFO L226 Difference]: Without dead ends: 52042 [2019-12-19 05:55:44,151 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 [2019-12-19 05:55:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52042 states. [2019-12-19 05:55:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52042 to 30648. [2019-12-19 05:55:45,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30648 states. [2019-12-19 05:55:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 124237 transitions. [2019-12-19 05:55:45,582 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 124237 transitions. Word has length 34 [2019-12-19 05:55:45,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:45,584 INFO L462 AbstractCegarLoop]: Abstraction has 30648 states and 124237 transitions. [2019-12-19 05:55:45,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:55:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 124237 transitions. [2019-12-19 05:55:45,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-19 05:55:45,590 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:45,591 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] [2019-12-19 05:55:45,591 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:45,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:45,591 INFO L82 PathProgramCache]: Analyzing trace with hash 330402858, now seen corresponding path program 1 times [2019-12-19 05:55:45,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:45,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723014939] [2019-12-19 05:55:45,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-19 05:55:45,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723014939] [2019-12-19 05:55:45,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:45,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:55:45,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513928018] [2019-12-19 05:55:45,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:55:45,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:45,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:55:45,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:55:45,680 INFO L87 Difference]: Start difference. First operand 30648 states and 124237 transitions. Second operand 8 states. [2019-12-19 05:55:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:47,798 INFO L93 Difference]: Finished difference Result 55918 states and 216366 transitions. [2019-12-19 05:55:47,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:55:47,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-19 05:55:47,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:47,971 INFO L225 Difference]: With dead ends: 55918 [2019-12-19 05:55:47,971 INFO L226 Difference]: Without dead ends: 52446 [2019-12-19 05:55:47,971 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-19 05:55:48,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52446 states. [2019-12-19 05:55:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52446 to 28812. [2019-12-19 05:55:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28812 states. [2019-12-19 05:55:48,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28812 states to 28812 states and 115895 transitions. [2019-12-19 05:55:48,978 INFO L78 Accepts]: Start accepts. Automaton has 28812 states and 115895 transitions. Word has length 41 [2019-12-19 05:55:48,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:48,980 INFO L462 AbstractCegarLoop]: Abstraction has 28812 states and 115895 transitions. [2019-12-19 05:55:48,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:55:48,980 INFO L276 IsEmpty]: Start isEmpty. Operand 28812 states and 115895 transitions. [2019-12-19 05:55:48,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-19 05:55:48,990 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:48,990 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] [2019-12-19 05:55:48,991 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:48,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:48,991 INFO L82 PathProgramCache]: Analyzing trace with hash 169292204, now seen corresponding path program 1 times [2019-12-19 05:55:48,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:48,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522838632] [2019-12-19 05:55:48,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:49,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522838632] [2019-12-19 05:55:49,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465130187] [2019-12-19 05:55:49,082 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 [2019-12-19 05:55:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:49,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-19 05:55:49,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-19 05:55:49,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-19 05:55:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:55:49,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-19 05:55:49,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-19 05:55:49,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948167092] [2019-12-19 05:55:49,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-19 05:55:49,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:49,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-19 05:55:49,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-12-19 05:55:49,390 INFO L87 Difference]: Start difference. First operand 28812 states and 115895 transitions. Second operand 18 states. [2019-12-19 05:55:51,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:51,641 INFO L93 Difference]: Finished difference Result 60118 states and 228798 transitions. [2019-12-19 05:55:51,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-19 05:55:51,642 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2019-12-19 05:55:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:51,882 INFO L225 Difference]: With dead ends: 60118 [2019-12-19 05:55:51,882 INFO L226 Difference]: Without dead ends: 58630 [2019-12-19 05:55:51,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=720, Invalid=2586, Unknown=0, NotChecked=0, Total=3306 [2019-12-19 05:55:52,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58630 states. [2019-12-19 05:55:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58630 to 28160. [2019-12-19 05:55:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28160 states. [2019-12-19 05:55:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28160 states to 28160 states and 113373 transitions. [2019-12-19 05:55:55,488 INFO L78 Accepts]: Start accepts. Automaton has 28160 states and 113373 transitions. Word has length 45 [2019-12-19 05:55:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:55,488 INFO L462 AbstractCegarLoop]: Abstraction has 28160 states and 113373 transitions. [2019-12-19 05:55:55,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-19 05:55:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 28160 states and 113373 transitions. [2019-12-19 05:55:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-19 05:55:55,498 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:55,498 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] [2019-12-19 05:55:55,702 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-19 05:55:55,702 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:55,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:55,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1634131850, now seen corresponding path program 2 times [2019-12-19 05:55:55,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:55,703 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110435560] [2019-12-19 05:55:55,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:55:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-19 05:55:55,800 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110435560] [2019-12-19 05:55:55,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:55:55,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-19 05:55:55,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116660203] [2019-12-19 05:55:55,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-19 05:55:55,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:55:55,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-19 05:55:55,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-19 05:55:55,802 INFO L87 Difference]: Start difference. First operand 28160 states and 113373 transitions. Second operand 10 states. [2019-12-19 05:55:57,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:55:57,042 INFO L93 Difference]: Finished difference Result 59086 states and 224854 transitions. [2019-12-19 05:55:57,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-19 05:55:57,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-19 05:55:57,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:55:57,223 INFO L225 Difference]: With dead ends: 59086 [2019-12-19 05:55:57,224 INFO L226 Difference]: Without dead ends: 57454 [2019-12-19 05:55:57,225 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 [2019-12-19 05:55:57,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57454 states. [2019-12-19 05:55:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57454 to 25152. [2019-12-19 05:55:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25152 states. [2019-12-19 05:55:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25152 states to 25152 states and 102287 transitions. [2019-12-19 05:55:58,236 INFO L78 Accepts]: Start accepts. Automaton has 25152 states and 102287 transitions. Word has length 45 [2019-12-19 05:55:58,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:55:58,237 INFO L462 AbstractCegarLoop]: Abstraction has 25152 states and 102287 transitions. [2019-12-19 05:55:58,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-19 05:55:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 25152 states and 102287 transitions. [2019-12-19 05:55:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-19 05:55:58,245 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:55:58,245 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] [2019-12-19 05:55:58,246 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:55:58,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:55:58,246 INFO L82 PathProgramCache]: Analyzing trace with hash -119237525, now seen corresponding path program 1 times [2019-12-19 05:55:58,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:55:58,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644796535] [2019-12-19 05:55:58,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:55:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:55:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:55:58,278 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:55:58,278 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:55:58,279 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-19 05:55:58,279 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-19 05:55:58,290 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,290 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,290 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,291 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,291 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,291 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,291 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,291 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,292 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,292 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,292 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,292 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,292 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,292 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,293 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,294 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,294 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,294 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,294 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,294 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,294 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,295 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,295 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,295 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,295 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,295 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,296 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,296 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,297 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,298 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,298 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,298 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,299 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,300 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,300 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,300 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,300 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,300 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,300 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,301 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,301 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,301 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,301 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,301 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,302 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,302 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,302 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,313 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,313 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,313 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,314 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,314 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,315 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,315 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,315 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,316 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,316 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,317 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,317 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,317 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,318 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,318 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,320 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,320 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,320 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,321 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,321 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,321 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,323 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,323 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,323 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,323 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,324 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,324 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,325 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,325 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,325 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,325 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,326 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,326 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,327 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,327 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,327 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,327 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,328 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,328 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:55:58,329 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-19 05:55:58,329 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:55:58,329 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:55:58,329 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:55:58,329 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:55:58,330 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:55:58,330 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:55:58,330 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:55:58,330 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:55:58,332 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 101 transitions [2019-12-19 05:57:45,990 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221590 states. [2019-12-19 05:57:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 221590 states. [2019-12-19 05:57:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:57:45,993 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:45,993 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] [2019-12-19 05:57:45,993 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]=== [2019-12-19 05:57:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:45,994 INFO L82 PathProgramCache]: Analyzing trace with hash 96412256, now seen corresponding path program 1 times [2019-12-19 05:57:45,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:45,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953762555] [2019-12-19 05:57:45,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:46,042 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953762555] [2019-12-19 05:57:46,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:46,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:57:46,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770006363] [2019-12-19 05:57:46,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:57:46,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:46,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:57:46,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:57:46,044 INFO L87 Difference]: Start difference. First operand 221590 states. Second operand 6 states. [2019-12-19 05:57:48,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:48,767 INFO L93 Difference]: Finished difference Result 307102 states and 1510066 transitions. [2019-12-19 05:57:48,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:57:48,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:57:48,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:49,611 INFO L225 Difference]: With dead ends: 307102 [2019-12-19 05:57:49,611 INFO L226 Difference]: Without dead ends: 225462 [2019-12-19 05:57:49,612 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 [2019-12-19 05:58:01,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225462 states. [2019-12-19 05:58:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225462 to 206386. [2019-12-19 05:58:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206386 states. [2019-12-19 05:58:13,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206386 states to 206386 states and 1016190 transitions. [2019-12-19 05:58:13,717 INFO L78 Accepts]: Start accepts. Automaton has 206386 states and 1016190 transitions. Word has length 25 [2019-12-19 05:58:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:58:13,718 INFO L462 AbstractCegarLoop]: Abstraction has 206386 states and 1016190 transitions. [2019-12-19 05:58:13,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:58:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 206386 states and 1016190 transitions. [2019-12-19 05:58:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:58:13,720 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:58:13,720 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] [2019-12-19 05:58:13,720 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]=== [2019-12-19 05:58:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:58:13,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1447088652, now seen corresponding path program 1 times [2019-12-19 05:58:13,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:58:13,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509128226] [2019-12-19 05:58:13,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:58:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:58:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:58:13,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509128226] [2019-12-19 05:58:13,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:58:13,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:58:13,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107705285] [2019-12-19 05:58:13,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:58:13,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:58:13,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:58:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:58:13,801 INFO L87 Difference]: Start difference. First operand 206386 states and 1016190 transitions. Second operand 8 states. [2019-12-19 05:58:27,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:58:27,226 INFO L93 Difference]: Finished difference Result 395234 states and 1867854 transitions. [2019-12-19 05:58:27,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:58:27,227 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:58:27,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:58:29,156 INFO L225 Difference]: With dead ends: 395234 [2019-12-19 05:58:29,156 INFO L226 Difference]: Without dead ends: 373906 [2019-12-19 05:58:29,156 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 [2019-12-19 05:58:33,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373906 states. [2019-12-19 05:58:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373906 to 209024. [2019-12-19 05:58:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209024 states. [2019-12-19 05:58:48,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209024 states to 209024 states and 1021861 transitions. [2019-12-19 05:58:48,208 INFO L78 Accepts]: Start accepts. Automaton has 209024 states and 1021861 transitions. Word has length 34 [2019-12-19 05:58:48,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:58:48,208 INFO L462 AbstractCegarLoop]: Abstraction has 209024 states and 1021861 transitions. [2019-12-19 05:58:48,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:58:48,209 INFO L276 IsEmpty]: Start isEmpty. Operand 209024 states and 1021861 transitions. [2019-12-19 05:58:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-19 05:58:48,212 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:58:48,212 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] [2019-12-19 05:58:48,212 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]=== [2019-12-19 05:58:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:58:48,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1585020680, now seen corresponding path program 1 times [2019-12-19 05:58:48,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:58:48,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644884120] [2019-12-19 05:58:48,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:58:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:58:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-19 05:58:48,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644884120] [2019-12-19 05:58:48,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:58:48,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:58:48,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769578527] [2019-12-19 05:58:48,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:58:48,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:58:48,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:58:48,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:58:48,285 INFO L87 Difference]: Start difference. First operand 209024 states and 1021861 transitions. Second operand 8 states. Received shutdown request... [2019-12-19 05:59:05,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:59:05,508 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-19 05:59:05,513 WARN L227 ceAbstractionStarter]: Timeout [2019-12-19 05:59:05,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:59:05 BasicIcfg [2019-12-19 05:59:05,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:59:05,517 INFO L168 Benchmark]: Toolchain (without parser) took 216350.80 ms. Allocated memory was 145.8 MB in the beginning and 5.6 GB in the end (delta: 5.4 GB). Free memory was 102.5 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,517 INFO L168 Benchmark]: CDTParser took 1.41 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.47 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 160.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.17 ms. Allocated memory is still 203.4 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,520 INFO L168 Benchmark]: Boogie Preprocessor took 25.87 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,520 INFO L168 Benchmark]: RCFGBuilder took 439.57 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 138.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,521 INFO L168 Benchmark]: TraceAbstraction took 215084.85 ms. Allocated memory was 203.4 MB in the beginning and 5.6 GB in the end (delta: 5.4 GB). Free memory was 137.5 MB in the beginning and 2.9 GB in the end (delta: -2.7 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2019-12-19 05:59:05,525 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.47 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 160.9 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.17 ms. Allocated memory is still 203.4 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.87 ms. Allocated memory is still 203.4 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 439.57 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 138.1 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215084.85 ms. Allocated memory was 203.4 MB in the beginning and 5.6 GB in the end (delta: 5.4 GB). Free memory was 137.5 MB in the beginning and 2.9 GB in the end (delta: -2.7 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 BasicCegarLoop was constructing difference of abstraction (209024states) and FLOYD_HOARE automaton (currently 20 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (413892 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 51 locations, 1 error locations. Result: TIMEOUT, OverallTime: 187.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 36.1s, 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: 43.1s AutomataMinimizationTime, 2 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