./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/indexer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/indexer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 14:56:14,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 14:56:14,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 14:56:14,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 14:56:14,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 14:56:14,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 14:56:14,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 14:56:14,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 14:56:14,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 14:56:14,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 14:56:14,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 14:56:14,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 14:56:14,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 14:56:14,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 14:56:14,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 14:56:14,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 14:56:14,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 14:56:14,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 14:56:14,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 14:56:14,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 14:56:14,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 14:56:14,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 14:56:14,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 14:56:14,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 14:56:14,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 14:56:14,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 14:56:14,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 14:56:14,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 14:56:14,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 14:56:14,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 14:56:14,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 14:56:14,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 14:56:14,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 14:56:14,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 14:56:14,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 14:56:14,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 14:56:14,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 14:56:14,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 14:56:14,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 14:56:14,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 14:56:14,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 14:56:14,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 14:56:14,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 14:56:14,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 14:56:14,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 14:56:14,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 14:56:14,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 14:56:14,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 14:56:14,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 14:56:14,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 14:56:14,202 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 14:56:14,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 14:56:14,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 14:56:14,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 14:56:14,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 14:56:14,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 14:56:14,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 14:56:14,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 14:56:14,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 14:56:14,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 14:56:14,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 14:56:14,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 14:56:14,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 14:56:14,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 14:56:14,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 14:56:14,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 14:56:14,206 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 14:56:14,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 14:56:14,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 14:56:14,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 14:56:14,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2021-12-21 14:56:14,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 14:56:14,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 14:56:14,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 14:56:14,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 14:56:14,413 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 14:56:14,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/indexer.i [2021-12-21 14:56:14,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28f8a549/7c5d85be8a80479f88072fea202e623f/FLAGd0ec1d7f1 [2021-12-21 14:56:14,912 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 14:56:14,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i [2021-12-21 14:56:14,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28f8a549/7c5d85be8a80479f88072fea202e623f/FLAGd0ec1d7f1 [2021-12-21 14:56:15,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b28f8a549/7c5d85be8a80479f88072fea202e623f [2021-12-21 14:56:15,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 14:56:15,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 14:56:15,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 14:56:15,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 14:56:15,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 14:56:15,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f1611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15, skipping insertion in model container [2021-12-21 14:56:15,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 14:56:15,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 14:56:15,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i[47556,47569] [2021-12-21 14:56:15,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 14:56:15,724 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 14:56:15,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/indexer.i[47556,47569] [2021-12-21 14:56:15,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 14:56:15,818 INFO L208 MainTranslator]: Completed translation [2021-12-21 14:56:15,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15 WrapperNode [2021-12-21 14:56:15,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 14:56:15,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 14:56:15,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 14:56:15,820 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 14:56:15,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,892 INFO L137 Inliner]: procedures = 269, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 114 [2021-12-21 14:56:15,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 14:56:15,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 14:56:15,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 14:56:15,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 14:56:15,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 14:56:15,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 14:56:15,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 14:56:15,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 14:56:15,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (1/1) ... [2021-12-21 14:56:15,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 14:56:15,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:15,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 14:56:16,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 14:56:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 14:56:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 14:56:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 14:56:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2021-12-21 14:56:16,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2021-12-21 14:56:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 14:56:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-21 14:56:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 14:56:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 14:56:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 14:56:16,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 14:56:16,036 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-21 14:56:16,182 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 14:56:16,186 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 14:56:16,357 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 14:56:16,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 14:56:16,363 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-21 14:56:16,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:56:16 BoogieIcfgContainer [2021-12-21 14:56:16,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 14:56:16,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 14:56:16,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 14:56:16,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 14:56:16,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:56:15" (1/3) ... [2021-12-21 14:56:16,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af547b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:56:16, skipping insertion in model container [2021-12-21 14:56:16,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:56:15" (2/3) ... [2021-12-21 14:56:16,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af547b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:56:16, skipping insertion in model container [2021-12-21 14:56:16,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:56:16" (3/3) ... [2021-12-21 14:56:16,375 INFO L111 eAbstractionObserver]: Analyzing ICFG indexer.i [2021-12-21 14:56:16,380 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-21 14:56:16,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 14:56:16,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 14:56:16,381 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-21 14:56:16,415 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,415 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,415 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,415 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,416 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,417 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,418 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,418 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,418 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,418 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,418 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,418 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,419 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,419 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,419 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,419 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,419 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,419 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,420 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,420 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,420 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,420 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,420 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,421 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,421 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,421 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,421 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,421 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,421 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,422 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,422 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,422 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,422 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,422 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,422 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,423 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,423 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,423 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,423 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,423 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,423 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,424 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,424 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,424 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,425 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,425 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,425 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,425 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,425 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,426 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,426 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,426 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,426 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,426 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,426 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,427 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,428 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,429 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,430 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,431 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,432 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,433 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,433 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,433 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,433 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,433 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,434 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,434 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,434 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,434 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,434 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,435 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,436 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,436 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,436 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,436 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,436 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,436 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,437 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,438 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,438 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,438 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,439 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,439 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,439 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,439 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,439 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,440 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,440 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,440 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,440 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,440 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,440 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,441 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,441 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,441 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,441 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,441 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,441 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,442 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,442 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,442 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,443 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,443 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,443 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,443 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,443 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,443 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,444 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,444 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,444 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,444 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,447 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,447 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~pre6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~tid~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~h~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,448 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~m~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#in~new_val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~val#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,449 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~w~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_#t~ret7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~h#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,450 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,451 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~ret_val~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,451 WARN L322 ript$VariableManager]: TermVariabe |thread_routineThread1of1ForFork0_cas_~tab#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-21 14:56:16,453 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-21 14:56:16,483 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 14:56:16,488 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 14:56:16,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-21 14:56:16,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 122 transitions, 252 flow [2021-12-21 14:56:16,539 INFO L129 PetriNetUnfolder]: 18/146 cut-off events. [2021-12-21 14:56:16,539 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-21 14:56:16,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 146 events. 18/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2021-12-21 14:56:16,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 122 transitions, 252 flow [2021-12-21 14:56:16,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 117 transitions, 239 flow [2021-12-21 14:56:16,570 INFO L129 PetriNetUnfolder]: 11/93 cut-off events. [2021-12-21 14:56:16,571 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 14:56:16,572 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:16,574 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:16,574 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:16,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1129507411, now seen corresponding path program 1 times [2021-12-21 14:56:16,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514700859] [2021-12-21 14:56:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:16,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:16,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:16,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514700859] [2021-12-21 14:56:16,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514700859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 14:56:16,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 14:56:16,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 14:56:16,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305982187] [2021-12-21 14:56:16,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 14:56:16,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 14:56:16,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 14:56:16,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 14:56:16,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 14:56:16,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 122 [2021-12-21 14:56:16,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 117 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:16,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 14:56:16,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 122 [2021-12-21 14:56:16,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 14:56:16,899 INFO L129 PetriNetUnfolder]: 4/105 cut-off events. [2021-12-21 14:56:16,900 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-21 14:56:16,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 8/107 useless extension candidates. Maximal degree in co-relation 72. Up to 14 conditions per place. [2021-12-21 14:56:16,902 INFO L132 encePairwiseOnDemand]: 107/122 looper letters, 21 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2021-12-21 14:56:16,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 103 transitions, 263 flow [2021-12-21 14:56:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 14:56:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-21 14:56:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2021-12-21 14:56:16,922 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8114754098360656 [2021-12-21 14:56:16,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2021-12-21 14:56:16,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2021-12-21 14:56:16,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 14:56:16,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2021-12-21 14:56:16,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:16,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:16,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:16,939 INFO L186 Difference]: Start difference. First operand has 107 places, 117 transitions, 239 flow. Second operand 3 states and 297 transitions. [2021-12-21 14:56:16,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 103 transitions, 263 flow [2021-12-21 14:56:16,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 263 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-21 14:56:16,948 INFO L242 Difference]: Finished difference. Result has 98 places, 97 transitions, 220 flow [2021-12-21 14:56:16,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=98, PETRI_TRANSITIONS=97} [2021-12-21 14:56:16,954 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, -9 predicate places. [2021-12-21 14:56:16,955 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 97 transitions, 220 flow [2021-12-21 14:56:16,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:16,955 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:16,956 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:16,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 14:56:16,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:16,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:16,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1175273194, now seen corresponding path program 1 times [2021-12-21 14:56:16,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:16,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496698016] [2021-12-21 14:56:16,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:16,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:17,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:17,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496698016] [2021-12-21 14:56:17,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496698016] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 14:56:17,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071976728] [2021-12-21 14:56:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:17,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:17,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:17,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 14:56:17,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 14:56:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:17,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 14:56:17,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 14:56:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:17,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 14:56:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:17,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071976728] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 14:56:17,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 14:56:17,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-21 14:56:17,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041988010] [2021-12-21 14:56:17,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 14:56:17,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 14:56:17,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 14:56:17,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 14:56:17,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-21 14:56:17,318 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-12-21 14:56:17,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 220 flow. Second operand has 10 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:17,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 14:56:17,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-12-21 14:56:17,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 14:56:17,397 INFO L129 PetriNetUnfolder]: 4/112 cut-off events. [2021-12-21 14:56:17,398 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-21 14:56:17,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 112 events. 4/112 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 78. Up to 12 conditions per place. [2021-12-21 14:56:17,399 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 21 selfloop transitions, 13 changer transitions 0/110 dead transitions. [2021-12-21 14:56:17,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 110 transitions, 316 flow [2021-12-21 14:56:17,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 14:56:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-21 14:56:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 876 transitions. [2021-12-21 14:56:17,401 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7180327868852459 [2021-12-21 14:56:17,401 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 876 transitions. [2021-12-21 14:56:17,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 876 transitions. [2021-12-21 14:56:17,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 14:56:17,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 876 transitions. [2021-12-21 14:56:17,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.6) internal successors, (876), 10 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:17,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:17,407 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:17,408 INFO L186 Difference]: Start difference. First operand has 98 places, 97 transitions, 220 flow. Second operand 10 states and 876 transitions. [2021-12-21 14:56:17,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 110 transitions, 316 flow [2021-12-21 14:56:17,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 110 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-21 14:56:17,410 INFO L242 Difference]: Finished difference. Result has 109 places, 104 transitions, 281 flow [2021-12-21 14:56:17,411 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=281, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2021-12-21 14:56:17,411 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2021-12-21 14:56:17,411 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 281 flow [2021-12-21 14:56:17,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:17,412 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:17,412 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:17,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-21 14:56:17,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:17,629 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1677055178, now seen corresponding path program 2 times [2021-12-21 14:56:17,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:17,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527341276] [2021-12-21 14:56:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:17,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:17,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:17,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527341276] [2021-12-21 14:56:17,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527341276] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 14:56:17,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658743533] [2021-12-21 14:56:17,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 14:56:17,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:17,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 14:56:17,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 14:56:17,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 14:56:17,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 14:56:17,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 14:56:17,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 14:56:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:17,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 14:56:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:18,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658743533] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 14:56:18,061 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 14:56:18,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-21 14:56:18,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26720070] [2021-12-21 14:56:18,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 14:56:18,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-21 14:56:18,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 14:56:18,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-21 14:56:18,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-12-21 14:56:18,067 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-12-21 14:56:18,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 281 flow. Second operand has 18 states, 18 states have (on average 86.66666666666667) internal successors, (1560), 18 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:18,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 14:56:18,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-12-21 14:56:18,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 14:56:18,247 INFO L129 PetriNetUnfolder]: 4/132 cut-off events. [2021-12-21 14:56:18,248 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-12-21 14:56:18,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 132 events. 4/132 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 4/132 useless extension candidates. Maximal degree in co-relation 168. Up to 13 conditions per place. [2021-12-21 14:56:18,249 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 29 selfloop transitions, 25 changer transitions 0/130 dead transitions. [2021-12-21 14:56:18,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 501 flow [2021-12-21 14:56:18,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-21 14:56:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-12-21 14:56:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1906 transitions. [2021-12-21 14:56:18,252 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.710134128166915 [2021-12-21 14:56:18,253 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1906 transitions. [2021-12-21 14:56:18,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1906 transitions. [2021-12-21 14:56:18,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 14:56:18,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1906 transitions. [2021-12-21 14:56:18,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 86.63636363636364) internal successors, (1906), 22 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:18,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 122.0) internal successors, (2806), 23 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:18,261 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 122.0) internal successors, (2806), 23 states have internal predecessors, (2806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:18,261 INFO L186 Difference]: Start difference. First operand has 109 places, 104 transitions, 281 flow. Second operand 22 states and 1906 transitions. [2021-12-21 14:56:18,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 501 flow [2021-12-21 14:56:18,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 484 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-12-21 14:56:18,266 INFO L242 Difference]: Finished difference. Result has 134 places, 117 transitions, 414 flow [2021-12-21 14:56:18,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=414, PETRI_PLACES=134, PETRI_TRANSITIONS=117} [2021-12-21 14:56:18,266 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 27 predicate places. [2021-12-21 14:56:18,267 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 117 transitions, 414 flow [2021-12-21 14:56:18,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 86.66666666666667) internal successors, (1560), 18 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:18,267 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:18,268 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:18,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 14:56:18,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-21 14:56:18,487 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 894994294, now seen corresponding path program 3 times [2021-12-21 14:56:18,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363894840] [2021-12-21 14:56:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:18,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:18,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363894840] [2021-12-21 14:56:18,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363894840] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 14:56:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849795596] [2021-12-21 14:56:18,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-21 14:56:18,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:18,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:18,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 14:56:18,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 14:56:18,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-12-21 14:56:18,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 14:56:18,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-21 14:56:18,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 14:56:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:18,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 14:56:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:19,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849795596] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 14:56:19,158 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 14:56:19,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2021-12-21 14:56:19,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318255865] [2021-12-21 14:56:19,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 14:56:19,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-12-21 14:56:19,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 14:56:19,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-21 14:56:19,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-12-21 14:56:19,161 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-12-21 14:56:19,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 117 transitions, 414 flow. Second operand has 34 states, 34 states have (on average 86.58823529411765) internal successors, (2944), 34 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:19,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 14:56:19,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-12-21 14:56:19,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 14:56:19,659 INFO L129 PetriNetUnfolder]: 4/172 cut-off events. [2021-12-21 14:56:19,659 INFO L130 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2021-12-21 14:56:19,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 172 events. 4/172 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 8/176 useless extension candidates. Maximal degree in co-relation 375. Up to 28 conditions per place. [2021-12-21 14:56:19,660 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 45 selfloop transitions, 49 changer transitions 0/170 dead transitions. [2021-12-21 14:56:19,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 170 transitions, 922 flow [2021-12-21 14:56:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-21 14:56:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-12-21 14:56:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 3966 transitions. [2021-12-21 14:56:19,666 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7066999287241625 [2021-12-21 14:56:19,666 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 3966 transitions. [2021-12-21 14:56:19,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 3966 transitions. [2021-12-21 14:56:19,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 14:56:19,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 3966 transitions. [2021-12-21 14:56:19,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 86.21739130434783) internal successors, (3966), 46 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:19,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 122.0) internal successors, (5734), 47 states have internal predecessors, (5734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:19,681 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 122.0) internal successors, (5734), 47 states have internal predecessors, (5734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:19,681 INFO L186 Difference]: Start difference. First operand has 134 places, 117 transitions, 414 flow. Second operand 46 states and 3966 transitions. [2021-12-21 14:56:19,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 170 transitions, 922 flow [2021-12-21 14:56:19,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 170 transitions, 879 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-12-21 14:56:19,686 INFO L242 Difference]: Finished difference. Result has 182 places, 142 transitions, 701 flow [2021-12-21 14:56:19,686 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=701, PETRI_PLACES=182, PETRI_TRANSITIONS=142} [2021-12-21 14:56:19,687 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 75 predicate places. [2021-12-21 14:56:19,687 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 142 transitions, 701 flow [2021-12-21 14:56:19,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 86.58823529411765) internal successors, (2944), 34 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:19,688 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:19,688 INFO L254 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:19,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 14:56:19,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:19,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:19,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1528078346, now seen corresponding path program 4 times [2021-12-21 14:56:19,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:19,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845011323] [2021-12-21 14:56:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:19,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:20,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:20,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845011323] [2021-12-21 14:56:20,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845011323] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 14:56:20,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624171400] [2021-12-21 14:56:20,263 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-21 14:56:20,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:20,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:20,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 14:56:20,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 14:56:20,358 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-21 14:56:20,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 14:56:20,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-21 14:56:20,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 14:56:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:20,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 14:56:21,349 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:21,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624171400] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 14:56:21,350 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 14:56:21,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2021-12-21 14:56:21,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508995977] [2021-12-21 14:56:21,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 14:56:21,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-12-21 14:56:21,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 14:56:21,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-12-21 14:56:21,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2021-12-21 14:56:21,357 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-12-21 14:56:21,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 142 transitions, 701 flow. Second operand has 66 states, 66 states have (on average 86.54545454545455) internal successors, (5712), 66 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:21,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 14:56:21,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-12-21 14:56:21,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 14:56:22,742 INFO L129 PetriNetUnfolder]: 4/252 cut-off events. [2021-12-21 14:56:22,742 INFO L130 PetriNetUnfolder]: For 2127/2127 co-relation queries the response was YES. [2021-12-21 14:56:22,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 252 events. 4/252 cut-off events. For 2127/2127 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 16/264 useless extension candidates. Maximal degree in co-relation 861. Up to 58 conditions per place. [2021-12-21 14:56:22,743 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 77 selfloop transitions, 97 changer transitions 0/250 dead transitions. [2021-12-21 14:56:22,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 250 transitions, 1901 flow [2021-12-21 14:56:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-12-21 14:56:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-12-21 14:56:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 8002 transitions. [2021-12-21 14:56:22,752 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.705270579940067 [2021-12-21 14:56:22,753 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 8002 transitions. [2021-12-21 14:56:22,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 8002 transitions. [2021-12-21 14:56:22,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 14:56:22,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 8002 transitions. [2021-12-21 14:56:22,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 86.04301075268818) internal successors, (8002), 93 states have internal predecessors, (8002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:22,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 122.0) internal successors, (11468), 94 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:22,786 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 122.0) internal successors, (11468), 94 states have internal predecessors, (11468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:22,786 INFO L186 Difference]: Start difference. First operand has 182 places, 142 transitions, 701 flow. Second operand 93 states and 8002 transitions. [2021-12-21 14:56:22,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 250 transitions, 1901 flow [2021-12-21 14:56:22,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 250 transitions, 1810 flow, removed 26 selfloop flow, removed 18 redundant places. [2021-12-21 14:56:22,796 INFO L242 Difference]: Finished difference. Result has 273 places, 191 transitions, 1344 flow [2021-12-21 14:56:22,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=1344, PETRI_PLACES=273, PETRI_TRANSITIONS=191} [2021-12-21 14:56:22,797 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 166 predicate places. [2021-12-21 14:56:22,797 INFO L470 AbstractCegarLoop]: Abstraction has has 273 places, 191 transitions, 1344 flow [2021-12-21 14:56:22,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 86.54545454545455) internal successors, (5712), 66 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:22,799 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:22,799 INFO L254 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:22,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-21 14:56:23,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:23,019 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:23,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:23,019 INFO L85 PathProgramCache]: Analyzing trace with hash 665424118, now seen corresponding path program 5 times [2021-12-21 14:56:23,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:23,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248720667] [2021-12-21 14:56:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:23,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:24,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:24,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248720667] [2021-12-21 14:56:24,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248720667] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 14:56:24,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123129968] [2021-12-21 14:56:24,093 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-21 14:56:24,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:24,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:24,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 14:56:24,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 14:56:29,069 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2021-12-21 14:56:29,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 14:56:29,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-21 14:56:29,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 14:56:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:29,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 14:56:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:32,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123129968] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 14:56:32,152 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 14:56:32,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2021-12-21 14:56:32,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864590838] [2021-12-21 14:56:32,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 14:56:32,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2021-12-21 14:56:32,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 14:56:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2021-12-21 14:56:32,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2021-12-21 14:56:32,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 122 [2021-12-21 14:56:32,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 191 transitions, 1344 flow. Second operand has 130 states, 130 states have (on average 86.52307692307693) internal successors, (11248), 130 states have internal predecessors, (11248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:32,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-21 14:56:32,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 122 [2021-12-21 14:56:32,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-21 14:56:37,264 INFO L129 PetriNetUnfolder]: 4/412 cut-off events. [2021-12-21 14:56:37,264 INFO L130 PetriNetUnfolder]: For 16833/16833 co-relation queries the response was YES. [2021-12-21 14:56:37,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2123 conditions, 412 events. 4/412 cut-off events. For 16833/16833 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 32/440 useless extension candidates. Maximal degree in co-relation 1987. Up to 122 conditions per place. [2021-12-21 14:56:37,267 INFO L132 encePairwiseOnDemand]: 112/122 looper letters, 141 selfloop transitions, 193 changer transitions 0/410 dead transitions. [2021-12-21 14:56:37,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 410 transitions, 4160 flow [2021-12-21 14:56:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2021-12-21 14:56:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-12-21 14:56:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 16242 transitions. [2021-12-21 14:56:37,302 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7043976060369503 [2021-12-21 14:56:37,302 INFO L72 ComplementDD]: Start complementDD. Operand 189 states and 16242 transitions. [2021-12-21 14:56:37,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 16242 transitions. [2021-12-21 14:56:37,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 14:56:37,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 189 states and 16242 transitions. [2021-12-21 14:56:37,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 190 states, 189 states have (on average 85.93650793650794) internal successors, (16242), 189 states have internal predecessors, (16242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:37,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 190 states, 190 states have (on average 122.0) internal successors, (23180), 190 states have internal predecessors, (23180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:37,357 INFO L81 ComplementDD]: Finished complementDD. Result has 190 states, 190 states have (on average 122.0) internal successors, (23180), 190 states have internal predecessors, (23180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:37,357 INFO L186 Difference]: Start difference. First operand has 273 places, 191 transitions, 1344 flow. Second operand 189 states and 16242 transitions. [2021-12-21 14:56:37,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 410 transitions, 4160 flow [2021-12-21 14:56:37,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 410 transitions, 3972 flow, removed 50 selfloop flow, removed 42 redundant places. [2021-12-21 14:56:37,380 INFO L242 Difference]: Finished difference. Result has 452 places, 288 transitions, 2790 flow [2021-12-21 14:56:37,380 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=189, PETRI_FLOW=2790, PETRI_PLACES=452, PETRI_TRANSITIONS=288} [2021-12-21 14:56:37,382 INFO L334 CegarLoopForPetriNet]: 107 programPoint places, 345 predicate places. [2021-12-21 14:56:37,382 INFO L470 AbstractCegarLoop]: Abstraction has has 452 places, 288 transitions, 2790 flow [2021-12-21 14:56:37,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 86.52307692307693) internal successors, (11248), 130 states have internal predecessors, (11248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 14:56:37,385 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-21 14:56:37,385 INFO L254 CegarLoopForPetriNet]: trace histogram [63, 63, 63, 63, 63, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 14:56:37,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-21 14:56:37,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:37,600 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread_routineErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 14:56:37,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 14:56:37,600 INFO L85 PathProgramCache]: Analyzing trace with hash -108530954, now seen corresponding path program 6 times [2021-12-21 14:56:37,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 14:56:37,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846891766] [2021-12-21 14:56:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 14:56:37,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 14:56:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 14:56:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9834 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 14:56:41,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 14:56:41,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846891766] [2021-12-21 14:56:41,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846891766] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 14:56:41,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171343814] [2021-12-21 14:56:41,305 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-21 14:56:41,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 14:56:41,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 14:56:41,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 14:56:41,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process