/usr/bin/java -Xmx16000000000 -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-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/stack-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 23:59:08,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 23:59:08,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 23:59:08,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 23:59:08,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 23:59:08,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 23:59:08,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 23:59:08,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 23:59:08,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 23:59:08,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 23:59:08,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 23:59:08,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 23:59:08,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 23:59:08,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 23:59:08,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 23:59:08,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 23:59:08,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 23:59:08,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 23:59:08,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 23:59:08,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 23:59:08,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 23:59:08,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 23:59:08,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 23:59:08,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 23:59:08,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 23:59:08,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 23:59:08,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 23:59:08,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 23:59:08,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 23:59:08,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 23:59:08,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 23:59:08,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 23:59:08,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 23:59:08,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 23:59:08,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 23:59:08,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 23:59:08,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 23:59:08,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 23:59:08,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 23:59:08,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 23:59:08,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 23:59:08,935 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-PN-SemanticLbe.epf [2020-10-15 23:59:08,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 23:59:08,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 23:59:08,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 23:59:08,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 23:59:08,960 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 23:59:08,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 23:59:08,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 23:59:08,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 23:59:08,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 23:59:08,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 23:59:08,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 23:59:08,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 23:59:08,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 23:59:08,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 23:59:08,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 23:59:08,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 23:59:08,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 23:59:08,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 23:59:08,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 23:59:08,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 23:59:08,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 23:59:08,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 23:59:08,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 23:59:08,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 23:59:08,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 23:59:08,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 23:59:08,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 23:59:08,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-15 23:59:08,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 23:59:09,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 23:59:09,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 23:59:09,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 23:59:09,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 23:59:09,291 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 23:59:09,291 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2020-10-15 23:59:09,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9c8c190/221e6e2ac1f04a6db57f8844aaad5135/FLAGaf0fd1a60 [2020-10-15 23:59:09,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 23:59:09,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i [2020-10-15 23:59:09,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9c8c190/221e6e2ac1f04a6db57f8844aaad5135/FLAGaf0fd1a60 [2020-10-15 23:59:10,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9c8c190/221e6e2ac1f04a6db57f8844aaad5135 [2020-10-15 23:59:10,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 23:59:10,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 23:59:10,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 23:59:10,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 23:59:10,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 23:59:10,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:59:10" (1/1) ... [2020-10-15 23:59:10,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d44edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:10, skipping insertion in model container [2020-10-15 23:59:10,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 11:59:10" (1/1) ... [2020-10-15 23:59:10,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 23:59:10,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 23:59:10,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 23:59:10,852 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 23:59:10,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 23:59:11,064 INFO L208 MainTranslator]: Completed translation [2020-10-15 23:59:11,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11 WrapperNode [2020-10-15 23:59:11,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 23:59:11,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 23:59:11,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 23:59:11,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 23:59:11,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 23:59:11,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 23:59:11,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 23:59:11,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 23:59:11,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (1/1) ... [2020-10-15 23:59:11,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 23:59:11,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 23:59:11,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 23:59:11,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 23:59:11,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (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 [2020-10-15 23:59:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-15 23:59:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-15 23:59:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-15 23:59:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-15 23:59:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 23:59:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 23:59:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 23:59:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 23:59:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 23:59:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 23:59:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 23:59:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 23:59:11,257 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 23:59:11,782 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 23:59:11,783 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-15 23:59:11,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:59:11 BoogieIcfgContainer [2020-10-15 23:59:11,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 23:59:11,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 23:59:11,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 23:59:11,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 23:59:11,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 11:59:10" (1/3) ... [2020-10-15 23:59:11,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fcd6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:59:11, skipping insertion in model container [2020-10-15 23:59:11,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 11:59:11" (2/3) ... [2020-10-15 23:59:11,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45fcd6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 11:59:11, skipping insertion in model container [2020-10-15 23:59:11,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 11:59:11" (3/3) ... [2020-10-15 23:59:11,795 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-10-15 23:59:11,808 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 23:59:11,817 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-15 23:59:11,818 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 23:59:11,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,855 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,856 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,856 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,856 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,857 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,857 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,857 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,858 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,858 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,858 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,858 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,859 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,859 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,859 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,860 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,860 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,860 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,860 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,861 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,861 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,861 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,861 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,862 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,862 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,862 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,863 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,863 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,864 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,864 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,864 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,864 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,864 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,865 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,865 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,865 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,865 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,866 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,866 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,866 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,867 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,867 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,867 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,867 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,868 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,868 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,868 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,868 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,869 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,869 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,869 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,869 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,870 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,870 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,870 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,870 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,871 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,871 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,871 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,872 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,872 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,872 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,872 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,873 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,873 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,873 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,875 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,875 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,875 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,876 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,876 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,876 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,877 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,877 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,878 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,879 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,879 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,880 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,880 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,880 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,881 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,881 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,882 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,882 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,882 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,883 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,884 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,885 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,886 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,887 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,888 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,888 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,888 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,889 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,891 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,891 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,892 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,892 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,893 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,902 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,902 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,902 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,903 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,903 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,905 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,905 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,906 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,906 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,907 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,907 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,908 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,909 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,923 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,923 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,924 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,924 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,926 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,926 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,927 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,927 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,927 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,927 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,928 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,928 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,928 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,928 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,929 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,929 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,929 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,929 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,930 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 23:59:11,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 23:59:11,981 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 23:59:11,982 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-15 23:59:11,982 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 23:59:11,982 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 23:59:11,982 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 23:59:11,983 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 23:59:11,983 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 23:59:11,983 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 23:59:12,000 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 320 flow [2020-10-15 23:59:12,086 INFO L129 PetriNetUnfolder]: 11/149 cut-off events. [2020-10-15 23:59:12,086 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 23:59:12,101 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 149 events. 11/149 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 386 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-15 23:59:12,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 320 flow [2020-10-15 23:59:12,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 137 transitions, 286 flow [2020-10-15 23:59:12,114 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 23:59:12,117 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 137 transitions, 286 flow [2020-10-15 23:59:12,121 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 137 transitions, 286 flow [2020-10-15 23:59:12,121 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 137 transitions, 286 flow [2020-10-15 23:59:12,195 INFO L129 PetriNetUnfolder]: 10/139 cut-off events. [2020-10-15 23:59:12,196 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 23:59:12,198 INFO L80 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 139 events. 10/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 305 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-15 23:59:12,206 INFO L117 LiptonReduction]: Number of co-enabled transitions 6532 [2020-10-15 23:59:14,774 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-15 23:59:15,259 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-15 23:59:15,392 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-15 23:59:15,958 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2020-10-15 23:59:16,208 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-15 23:59:16,286 INFO L132 LiptonReduction]: Checked pairs total: 10121 [2020-10-15 23:59:16,287 INFO L134 LiptonReduction]: Total number of compositions: 132 [2020-10-15 23:59:16,291 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4179 [2020-10-15 23:59:16,301 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2020-10-15 23:59:16,302 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-15 23:59:16,302 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:16,303 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 23:59:16,303 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:16,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:16,309 INFO L82 PathProgramCache]: Analyzing trace with hash 856269965, now seen corresponding path program 1 times [2020-10-15 23:59:16,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:16,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633400728] [2020-10-15 23:59:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:16,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:16,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633400728] [2020-10-15 23:59:16,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:16,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:16,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069280520] [2020-10-15 23:59:16,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:16,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:16,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:16,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:16,591 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 281 [2020-10-15 23:59:16,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 82 flow. Second operand 3 states. [2020-10-15 23:59:16,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:16,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 281 [2020-10-15 23:59:16,596 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:16,669 INFO L129 PetriNetUnfolder]: 39/119 cut-off events. [2020-10-15 23:59:16,669 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2020-10-15 23:59:16,670 INFO L80 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 119 events. 39/119 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 401 event pairs, 15 based on Foata normal form. 7/104 useless extension candidates. Maximal degree in co-relation 176. Up to 49 conditions per place. [2020-10-15 23:59:16,672 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 13 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2020-10-15 23:59:16,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 122 flow [2020-10-15 23:59:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2020-10-15 23:59:16,693 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8208778173190985 [2020-10-15 23:59:16,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions. [2020-10-15 23:59:16,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions. [2020-10-15 23:59:16,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:16,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions. [2020-10-15 23:59:16,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:16,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:16,717 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:16,720 INFO L185 Difference]: Start difference. First operand has 35 places, 35 transitions, 82 flow. Second operand 3 states and 692 transitions. [2020-10-15 23:59:16,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 122 flow [2020-10-15 23:59:16,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 114 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-15 23:59:16,726 INFO L241 Difference]: Finished difference. Result has 35 places, 36 transitions, 96 flow [2020-10-15 23:59:16,729 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=36} [2020-10-15 23:59:16,730 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2020-10-15 23:59:16,730 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 36 transitions, 96 flow [2020-10-15 23:59:16,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:16,731 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:16,731 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:16,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 23:59:16,731 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:16,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:16,732 INFO L82 PathProgramCache]: Analyzing trace with hash 664979984, now seen corresponding path program 1 times [2020-10-15 23:59:16,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:16,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645480754] [2020-10-15 23:59:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:16,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:16,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645480754] [2020-10-15 23:59:16,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:16,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:16,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931732982] [2020-10-15 23:59:16,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:16,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:16,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:16,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:16,866 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 281 [2020-10-15 23:59:16,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 96 flow. Second operand 3 states. [2020-10-15 23:59:16,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:16,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 281 [2020-10-15 23:59:16,867 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:16,901 INFO L129 PetriNetUnfolder]: 23/109 cut-off events. [2020-10-15 23:59:16,901 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2020-10-15 23:59:16,902 INFO L80 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 109 events. 23/109 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 368 event pairs, 1 based on Foata normal form. 3/99 useless extension candidates. Maximal degree in co-relation 131. Up to 24 conditions per place. [2020-10-15 23:59:16,903 INFO L132 encePairwiseOnDemand]: 277/281 looper letters, 6 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2020-10-15 23:59:16,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 116 flow [2020-10-15 23:59:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2020-10-15 23:59:16,907 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8754448398576512 [2020-10-15 23:59:16,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2020-10-15 23:59:16,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2020-10-15 23:59:16,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:16,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2020-10-15 23:59:16,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:16,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:16,913 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:16,913 INFO L185 Difference]: Start difference. First operand has 35 places, 36 transitions, 96 flow. Second operand 3 states and 738 transitions. [2020-10-15 23:59:16,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 116 flow [2020-10-15 23:59:16,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-15 23:59:16,915 INFO L241 Difference]: Finished difference. Result has 36 places, 37 transitions, 106 flow [2020-10-15 23:59:16,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2020-10-15 23:59:16,916 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2020-10-15 23:59:16,916 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 106 flow [2020-10-15 23:59:16,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:16,916 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:16,916 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:16,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 23:59:16,917 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:16,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:16,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1319617273, now seen corresponding path program 1 times [2020-10-15 23:59:16,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:16,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217660106] [2020-10-15 23:59:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:17,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217660106] [2020-10-15 23:59:17,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:17,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 23:59:17,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624272455] [2020-10-15 23:59:17,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:17,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:17,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:17,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:17,004 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 281 [2020-10-15 23:59:17,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 106 flow. Second operand 3 states. [2020-10-15 23:59:17,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:17,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 281 [2020-10-15 23:59:17,006 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:17,056 INFO L129 PetriNetUnfolder]: 25/120 cut-off events. [2020-10-15 23:59:17,057 INFO L130 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2020-10-15 23:59:17,058 INFO L80 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 120 events. 25/120 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 397 event pairs, 2 based on Foata normal form. 3/97 useless extension candidates. Maximal degree in co-relation 162. Up to 24 conditions per place. [2020-10-15 23:59:17,060 INFO L132 encePairwiseOnDemand]: 278/281 looper letters, 4 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2020-10-15 23:59:17,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 126 flow [2020-10-15 23:59:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2020-10-15 23:59:17,063 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8730723606168446 [2020-10-15 23:59:17,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2020-10-15 23:59:17,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2020-10-15 23:59:17,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:17,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2020-10-15 23:59:17,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:17,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:17,068 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:17,068 INFO L185 Difference]: Start difference. First operand has 36 places, 37 transitions, 106 flow. Second operand 3 states and 736 transitions. [2020-10-15 23:59:17,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 126 flow [2020-10-15 23:59:17,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:17,072 INFO L241 Difference]: Finished difference. Result has 38 places, 38 transitions, 124 flow [2020-10-15 23:59:17,072 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2020-10-15 23:59:17,072 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2020-10-15 23:59:17,072 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 124 flow [2020-10-15 23:59:17,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:17,073 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:17,073 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:17,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 23:59:17,073 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:17,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:17,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1564157375, now seen corresponding path program 1 times [2020-10-15 23:59:17,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:17,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272491981] [2020-10-15 23:59:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:17,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272491981] [2020-10-15 23:59:17,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139860790] [2020-10-15 23:59:17,223 INFO L95 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 [2020-10-15 23:59:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:17,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-15 23:59:17,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:17,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:17,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-15 23:59:17,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205484067] [2020-10-15 23:59:17,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 23:59:17,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:17,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 23:59:17,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 23:59:17,424 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 281 [2020-10-15 23:59:17,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 124 flow. Second operand 7 states. [2020-10-15 23:59:17,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:17,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 281 [2020-10-15 23:59:17,425 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:17,548 INFO L129 PetriNetUnfolder]: 92/267 cut-off events. [2020-10-15 23:59:17,548 INFO L130 PetriNetUnfolder]: For 145/152 co-relation queries the response was YES. [2020-10-15 23:59:17,550 INFO L80 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 267 events. 92/267 cut-off events. For 145/152 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1220 event pairs, 10 based on Foata normal form. 6/219 useless extension candidates. Maximal degree in co-relation 527. Up to 67 conditions per place. [2020-10-15 23:59:17,552 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 19 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2020-10-15 23:59:17,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 226 flow [2020-10-15 23:59:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 23:59:17,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-15 23:59:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1133 transitions. [2020-10-15 23:59:17,556 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8064056939501779 [2020-10-15 23:59:17,556 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1133 transitions. [2020-10-15 23:59:17,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1133 transitions. [2020-10-15 23:59:17,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:17,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1133 transitions. [2020-10-15 23:59:17,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-15 23:59:17,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-15 23:59:17,562 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-15 23:59:17,562 INFO L185 Difference]: Start difference. First operand has 38 places, 38 transitions, 124 flow. Second operand 5 states and 1133 transitions. [2020-10-15 23:59:17,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 226 flow [2020-10-15 23:59:17,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:17,566 INFO L241 Difference]: Finished difference. Result has 43 places, 43 transitions, 175 flow [2020-10-15 23:59:17,566 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2020-10-15 23:59:17,566 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2020-10-15 23:59:17,566 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 175 flow [2020-10-15 23:59:17,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 23:59:17,567 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:17,567 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:17,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:17,781 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:17,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:17,782 INFO L82 PathProgramCache]: Analyzing trace with hash -632067173, now seen corresponding path program 1 times [2020-10-15 23:59:17,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:17,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939421111] [2020-10-15 23:59:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:17,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939421111] [2020-10-15 23:59:17,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:17,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 23:59:17,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561700079] [2020-10-15 23:59:17,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 23:59:17,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:17,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 23:59:17,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 23:59:17,826 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 281 [2020-10-15 23:59:17,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 175 flow. Second operand 3 states. [2020-10-15 23:59:17,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:17,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 281 [2020-10-15 23:59:17,827 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:17,861 INFO L129 PetriNetUnfolder]: 16/116 cut-off events. [2020-10-15 23:59:17,862 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2020-10-15 23:59:17,862 INFO L80 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 116 events. 16/116 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 416 event pairs, 0 based on Foata normal form. 14/124 useless extension candidates. Maximal degree in co-relation 180. Up to 18 conditions per place. [2020-10-15 23:59:17,863 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 1 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2020-10-15 23:59:17,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 180 flow [2020-10-15 23:59:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 23:59:17,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-15 23:59:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2020-10-15 23:59:17,866 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8018979833926453 [2020-10-15 23:59:17,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2020-10-15 23:59:17,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2020-10-15 23:59:17,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:17,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2020-10-15 23:59:17,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-15 23:59:17,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-15 23:59:17,871 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-15 23:59:17,871 INFO L185 Difference]: Start difference. First operand has 43 places, 43 transitions, 175 flow. Second operand 3 states and 676 transitions. [2020-10-15 23:59:17,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 180 flow [2020-10-15 23:59:17,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-15 23:59:17,874 INFO L241 Difference]: Finished difference. Result has 45 places, 42 transitions, 178 flow [2020-10-15 23:59:17,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2020-10-15 23:59:17,874 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2020-10-15 23:59:17,875 INFO L481 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 178 flow [2020-10-15 23:59:17,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 23:59:17,875 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:17,875 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:17,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 23:59:17,875 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:17,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:17,876 INFO L82 PathProgramCache]: Analyzing trace with hash -744535742, now seen corresponding path program 1 times [2020-10-15 23:59:17,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:17,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778245356] [2020-10-15 23:59:17,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:17,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:17,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778245356] [2020-10-15 23:59:17,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:17,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 23:59:17,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074963870] [2020-10-15 23:59:17,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 23:59:17,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:17,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 23:59:17,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 23:59:17,936 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 281 [2020-10-15 23:59:17,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 178 flow. Second operand 5 states. [2020-10-15 23:59:17,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:17,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 281 [2020-10-15 23:59:17,938 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:18,013 INFO L129 PetriNetUnfolder]: 21/147 cut-off events. [2020-10-15 23:59:18,013 INFO L130 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2020-10-15 23:59:18,014 INFO L80 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 147 events. 21/147 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 559 event pairs, 0 based on Foata normal form. 2/141 useless extension candidates. Maximal degree in co-relation 273. Up to 24 conditions per place. [2020-10-15 23:59:18,015 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 18 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2020-10-15 23:59:18,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 260 flow [2020-10-15 23:59:18,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 23:59:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-15 23:59:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1131 transitions. [2020-10-15 23:59:18,019 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.804982206405694 [2020-10-15 23:59:18,019 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1131 transitions. [2020-10-15 23:59:18,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1131 transitions. [2020-10-15 23:59:18,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:18,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1131 transitions. [2020-10-15 23:59:18,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-15 23:59:18,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-15 23:59:18,025 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-15 23:59:18,026 INFO L185 Difference]: Start difference. First operand has 45 places, 42 transitions, 178 flow. Second operand 5 states and 1131 transitions. [2020-10-15 23:59:18,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 260 flow [2020-10-15 23:59:18,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-15 23:59:18,029 INFO L241 Difference]: Finished difference. Result has 50 places, 44 transitions, 217 flow [2020-10-15 23:59:18,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2020-10-15 23:59:18,029 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2020-10-15 23:59:18,030 INFO L481 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 217 flow [2020-10-15 23:59:18,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 23:59:18,030 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:18,030 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:18,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 23:59:18,030 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:18,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:18,031 INFO L82 PathProgramCache]: Analyzing trace with hash -420412699, now seen corresponding path program 1 times [2020-10-15 23:59:18,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:18,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570273338] [2020-10-15 23:59:18,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:18,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570273338] [2020-10-15 23:59:18,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 23:59:18,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 23:59:18,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247804997] [2020-10-15 23:59:18,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 23:59:18,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:18,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 23:59:18,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-15 23:59:18,625 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 281 [2020-10-15 23:59:18,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 217 flow. Second operand 15 states. [2020-10-15 23:59:18,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:18,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 281 [2020-10-15 23:59:18,627 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:20,168 INFO L129 PetriNetUnfolder]: 312/806 cut-off events. [2020-10-15 23:59:20,168 INFO L130 PetriNetUnfolder]: For 648/648 co-relation queries the response was YES. [2020-10-15 23:59:20,171 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 806 events. 312/806 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4610 event pairs, 33 based on Foata normal form. 12/774 useless extension candidates. Maximal degree in co-relation 441. Up to 341 conditions per place. [2020-10-15 23:59:20,177 INFO L132 encePairwiseOnDemand]: 265/281 looper letters, 83 selfloop transitions, 22 changer transitions 0/120 dead transitions. [2020-10-15 23:59:20,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 120 transitions, 664 flow [2020-10-15 23:59:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 23:59:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-15 23:59:20,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2325 transitions. [2020-10-15 23:59:20,187 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.48670713837136276 [2020-10-15 23:59:20,187 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2325 transitions. [2020-10-15 23:59:20,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2325 transitions. [2020-10-15 23:59:20,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:20,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2325 transitions. [2020-10-15 23:59:20,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-15 23:59:20,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-15 23:59:20,204 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-15 23:59:20,204 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 217 flow. Second operand 17 states and 2325 transitions. [2020-10-15 23:59:20,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 120 transitions, 664 flow [2020-10-15 23:59:20,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 120 transitions, 636 flow, removed 5 selfloop flow, removed 3 redundant places. [2020-10-15 23:59:20,218 INFO L241 Difference]: Finished difference. Result has 76 places, 65 transitions, 420 flow [2020-10-15 23:59:20,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=420, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2020-10-15 23:59:20,219 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2020-10-15 23:59:20,219 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 420 flow [2020-10-15 23:59:20,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 23:59:20,219 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:20,219 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-15 23:59:20,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 23:59:20,220 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:20,221 INFO L82 PathProgramCache]: Analyzing trace with hash 934892785, now seen corresponding path program 2 times [2020-10-15 23:59:20,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:20,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467969447] [2020-10-15 23:59:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 23:59:20,334 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:20,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467969447] [2020-10-15 23:59:20,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119108156] [2020-10-15 23:59:20,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:20,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 23:59:20,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 23:59:20,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 23:59:20,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 23:59:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 23:59:20,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 23:59:20,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-15 23:59:20,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759442121] [2020-10-15 23:59:20,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 23:59:20,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 23:59:20,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 23:59:20,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-15 23:59:20,489 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 281 [2020-10-15 23:59:20,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 420 flow. Second operand 9 states. [2020-10-15 23:59:20,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-15 23:59:20,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 281 [2020-10-15 23:59:20,491 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-15 23:59:20,611 INFO L129 PetriNetUnfolder]: 36/257 cut-off events. [2020-10-15 23:59:20,611 INFO L130 PetriNetUnfolder]: For 439/439 co-relation queries the response was YES. [2020-10-15 23:59:20,613 INFO L80 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 257 events. 36/257 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1195 event pairs, 1 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 645. Up to 43 conditions per place. [2020-10-15 23:59:20,614 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 38 selfloop transitions, 15 changer transitions 0/83 dead transitions. [2020-10-15 23:59:20,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 648 flow [2020-10-15 23:59:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 23:59:20,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-15 23:59:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1580 transitions. [2020-10-15 23:59:20,620 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8032536858159633 [2020-10-15 23:59:20,620 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1580 transitions. [2020-10-15 23:59:20,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1580 transitions. [2020-10-15 23:59:20,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-15 23:59:20,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1580 transitions. [2020-10-15 23:59:20,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-15 23:59:20,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-15 23:59:20,629 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-15 23:59:20,629 INFO L185 Difference]: Start difference. First operand has 76 places, 65 transitions, 420 flow. Second operand 7 states and 1580 transitions. [2020-10-15 23:59:20,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 648 flow [2020-10-15 23:59:20,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 83 transitions, 644 flow, removed 2 selfloop flow, removed 0 redundant places. [2020-10-15 23:59:20,635 INFO L241 Difference]: Finished difference. Result has 84 places, 69 transitions, 498 flow [2020-10-15 23:59:20,635 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=498, PETRI_PLACES=84, PETRI_TRANSITIONS=69} [2020-10-15 23:59:20,636 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2020-10-15 23:59:20,636 INFO L481 AbstractCegarLoop]: Abstraction has has 84 places, 69 transitions, 498 flow [2020-10-15 23:59:20,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 23:59:20,636 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-15 23:59:20,636 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 23:59:20,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 23:59:20,851 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 23:59:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 23:59:20,851 INFO L82 PathProgramCache]: Analyzing trace with hash -388874381, now seen corresponding path program 1 times [2020-10-15 23:59:20,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 23:59:20,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168612699] [2020-10-15 23:59:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 23:59:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 23:59:20,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 23:59:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 23:59:20,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 23:59:20,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 23:59:20,962 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 23:59:20,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 23:59:20,963 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 23:59:20,964 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 23:59:20,970 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [583] [583] L973-6-->L941-1: Formula: (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_Out968630640 4294967296)) (.cse1 (select |#pthreadsMutex_In968630640| |~#m~0.base_In968630640|))) (and (= t1Thread1of1ForFork0_~tmp~0_Out968630640 |t1Thread1of1ForFork0_#t~nondet43_In968630640|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out968630640| t1Thread1of1ForFork0_push_~stack.base_Out968630640) (= t1Thread1of1ForFork0_push_~stack.offset_Out968630640 |t1Thread1of1ForFork0_push_#in~stack.offset_Out968630640|) (= .cse0 |t1Thread1of1ForFork0_push_#in~x_Out968630640|) (= |~#arr~0.offset_In968630640| |t1Thread1of1ForFork0_push_#in~stack.offset_Out968630640|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out968630640| |~#arr~0.base_In968630640|) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out968630640 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out968630640|) (= |#pthreadsMutex_Out968630640| (store |#pthreadsMutex_In968630640| |~#m~0.base_In968630640| (store .cse1 |~#m~0.offset_In968630640| 1))) (< .cse0 5) (= (select .cse1 |~#m~0.offset_In968630640|) 0) (< t1Thread1of1ForFork0_~i~0_In968630640 5) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out968630640| 1))) InVars {~#arr~0.offset=|~#arr~0.offset_In968630640|, #pthreadsMutex=|#pthreadsMutex_In968630640|, ~#m~0.base=|~#m~0.base_In968630640|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In968630640, ~#m~0.offset=|~#m~0.offset_In968630640|, ~#arr~0.base=|~#arr~0.base_In968630640|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_In968630640|} OutVars{t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out968630640|, #pthreadsMutex=|#pthreadsMutex_Out968630640|, ~#arr~0.offset=|~#arr~0.offset_In968630640|, t1Thread1of1ForFork0_~i~0=t1Thread1of1ForFork0_~i~0_In968630640, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out968630640, t1Thread1of1ForFork0_push_#t~ret35=|t1Thread1of1ForFork0_push_#t~ret35_Out968630640|, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out968630640|, ~#m~0.base=|~#m~0.base_In968630640|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out968630640, t1Thread1of1ForFork0_push_#t~nondet33=|t1Thread1of1ForFork0_push_#t~nondet33_Out968630640|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out968630640, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out968630640|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_Out968630640, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out968630640, ~#m~0.offset=|~#m~0.offset_In968630640|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out968630640|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out968630640|, t1Thread1of1ForFork0_#t~nondet42=|t1Thread1of1ForFork0_#t~nondet42_Out968630640|, t1Thread1of1ForFork0_#t~nondet43=|t1Thread1of1ForFork0_#t~nondet43_Out968630640|, ~#arr~0.base=|~#arr~0.base_In968630640|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, #pthreadsMutex, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#t~ret35, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_push_#t~nondet33, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_~tmp~0, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_#t~nondet42, t1Thread1of1ForFork0_#t~nondet43] because there is no mapped edge [2020-10-15 23:59:20,979 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [577] [577] L993-3-->L988-6: Formula: (and (= (store |#pthreadsMutex_In-224656869| |~#m~0.base_In-224656869| (store (select |#pthreadsMutex_In-224656869| |~#m~0.base_In-224656869|) |~#m~0.offset_In-224656869| 0)) |#pthreadsMutex_Out-224656869|) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret47_In-224656869| 2147483648)) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret47_In-224656869|)) (<= |t2Thread1of1ForFork1_#t~ret47_In-224656869| 2147483647) (= t2Thread1of1ForFork1_~i~1_Out-224656869 (+ t2Thread1of1ForFork1_~i~1_In-224656869 1))) InVars {#pthreadsMutex=|#pthreadsMutex_In-224656869|, ~#m~0.base=|~#m~0.base_In-224656869|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In-224656869|, ~#m~0.offset=|~#m~0.offset_In-224656869|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-224656869} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-224656869|, ~#m~0.base=|~#m~0.base_In-224656869|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out-224656869|, ~#m~0.offset=|~#m~0.offset_In-224656869|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out-224656869|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-224656869} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-15 23:59:21,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 11:59:21 BasicIcfg [2020-10-15 23:59:21,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 23:59:21,027 INFO L168 Benchmark]: Toolchain (without parser) took 10830.93 ms. Allocated memory was 250.6 MB in the beginning and 486.0 MB in the end (delta: 235.4 MB). Free memory was 205.7 MB in the beginning and 389.6 MB in the end (delta: -184.0 MB). Peak memory consumption was 51.4 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:21,028 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 250.6 MB. Free memory was 228.7 MB in the beginning and 227.8 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-15 23:59:21,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 867.79 ms. Allocated memory was 250.6 MB in the beginning and 312.5 MB in the end (delta: 61.9 MB). Free memory was 204.8 MB in the beginning and 240.5 MB in the end (delta: -35.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:21,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.88 ms. Allocated memory is still 312.5 MB. Free memory was 240.5 MB in the beginning and 238.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:21,031 INFO L168 Benchmark]: Boogie Preprocessor took 36.02 ms. Allocated memory is still 312.5 MB. Free memory was 238.0 MB in the beginning and 235.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:21,031 INFO L168 Benchmark]: RCFGBuilder took 600.56 ms. Allocated memory is still 312.5 MB. Free memory was 235.4 MB in the beginning and 201.7 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. [2020-10-15 23:59:21,032 INFO L168 Benchmark]: TraceAbstraction took 9238.84 ms. Allocated memory was 312.5 MB in the beginning and 486.0 MB in the end (delta: 173.5 MB). Free memory was 200.9 MB in the beginning and 389.6 MB in the end (delta: -188.7 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 23:59:21,036 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 250.6 MB. Free memory was 228.7 MB in the beginning and 227.8 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 867.79 ms. Allocated memory was 250.6 MB in the beginning and 312.5 MB in the end (delta: 61.9 MB). Free memory was 204.8 MB in the beginning and 240.5 MB in the end (delta: -35.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 80.88 ms. Allocated memory is still 312.5 MB. Free memory was 240.5 MB in the beginning and 238.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 36.02 ms. Allocated memory is still 312.5 MB. Free memory was 238.0 MB in the beginning and 235.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 600.56 ms. Allocated memory is still 312.5 MB. Free memory was 235.4 MB in the beginning and 201.7 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 9238.84 ms. Allocated memory was 312.5 MB in the beginning and 486.0 MB in the end (delta: 173.5 MB). Free memory was 200.9 MB in the beginning and 389.6 MB in the end (delta: -188.7 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4839 VarBasedMoverChecksPositive, 90 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 61 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 293 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.1s, 133 PlacesBefore, 35 PlacesAfterwards, 137 TransitionsBefore, 35 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 4 ChoiceCompositions, 132 TotalNumberOfCompositions, 10121 MoverChecksTotal - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(5)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1002] 0 pthread_t id1, id2; [L1004] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={9:0}, flag=0, m={10:0}, top=0] [L971] 1 int i; [L972] 1 unsigned int tmp; [L973] 1 i=0 VAL [arr={9:0}, flag=0, m={10:0}, top=0] [L943] COND FALSE 1 !(top==(5)) [L935] 1 return top; [L950] 1 stack[get_top()] = x VAL [arr={9:0}, flag=0, m={10:0}, top=0] [L927] 1 top++ [L953] 1 return 0; [L978] COND FALSE 1 !(push(arr,tmp)==(-1)) [L980] 1 flag=(1) VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L973] 1 i++ VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L1005] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L987] 2 int i; [L988] 2 i=0 VAL [arr={9:0}, flag=1, m={10:0}, top=1] [L988] COND TRUE 2 i<(5) [L991] COND TRUE 2 \read(flag) [L935] 2 return top; [L957] COND FALSE 2 !(get_top()==0) [L931] 2 top-- [L935] 2 return top; [L965] EXPR 2 stack[get_top()] [L965] 2 return stack[get_top()]; [L988] COND TRUE 2 i<(5) [L991] COND TRUE 2 \read(flag) [L935] 2 return top; [L957] COND TRUE 2 get_top()==0 [L960] 2 return (-2); [L993] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={9:0}, flag=1, m={10:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 138 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 8.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 47 SDtfs, 104 SDslu, 61 SDs, 0 SdLazy, 783 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=498occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 14452 SizeOfPredicates, 5 NumberOfNonLiveVariables, 357 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 6/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...