./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/mult-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/mult-dist.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc --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 c22a326532494b0b5126a81d8882f3e958ed0a5a46e6da0f77df1a4da18ba846 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:37:07,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:37:07,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:37:07,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:37:07,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:37:07,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:37:07,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:37:07,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:37:07,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:37:07,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:37:07,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:37:07,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:37:07,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:37:07,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:37:07,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:37:07,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:37:07,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:37:07,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:37:07,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:37:07,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:37:07,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:37:07,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:37:07,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:37:07,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:37:07,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:37:07,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:37:07,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:37:07,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:37:07,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:37:07,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:37:07,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:37:07,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:37:07,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:37:07,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:37:07,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:37:07,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:37:07,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:37:07,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:37:07,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:37:07,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:37:07,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:37:07,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:37:07,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:37:07,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:37:07,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:37:07,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:37:07,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:37:07,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:37:07,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:37:07,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:37:07,209 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:37:07,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:37:07,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:37:07,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:37:07,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:37:07,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:37:07,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:37:07,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:37:07,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:37:07,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:37:07,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:37:07,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:37:07,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:37:07,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:37:07,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:37:07,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:37:07,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:37:07,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:37:07,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:37:07,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:37:07,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:37:07,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:37:07,215 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:37:07,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:37:07,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:37:07,216 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22a326532494b0b5126a81d8882f3e958ed0a5a46e6da0f77df1a4da18ba846 [2022-11-02 20:37:07,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:37:07,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:37:07,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:37:07,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:37:07,553 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:37:07,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/mult-dist.wvr.c [2022-11-02 20:37:07,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/data/38367de0c/6b10e670360c44de9abcc1e741189ecf/FLAG4ab344eb9 [2022-11-02 20:37:08,208 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:37:08,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/sv-benchmarks/c/weaver/mult-dist.wvr.c [2022-11-02 20:37:08,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/data/38367de0c/6b10e670360c44de9abcc1e741189ecf/FLAG4ab344eb9 [2022-11-02 20:37:08,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/data/38367de0c/6b10e670360c44de9abcc1e741189ecf [2022-11-02 20:37:08,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:37:08,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:37:08,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:37:08,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:37:08,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:37:08,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7b1ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08, skipping insertion in model container [2022-11-02 20:37:08,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:37:08,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:37:08,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/sv-benchmarks/c/weaver/mult-dist.wvr.c[2116,2129] [2022-11-02 20:37:08,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:37:08,832 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:37:08,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/sv-benchmarks/c/weaver/mult-dist.wvr.c[2116,2129] [2022-11-02 20:37:08,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:37:08,885 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:37:08,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08 WrapperNode [2022-11-02 20:37:08,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:37:08,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:37:08,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:37:08,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:37:08,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,943 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-02 20:37:08,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:37:08,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:37:08,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:37:08,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:37:08,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:08,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:37:08,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:37:08,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:37:08,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:37:08,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (1/1) ... [2022-11-02 20:37:09,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:37:09,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:09,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:37:09,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:37:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:37:09,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:37:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:37:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:37:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:37:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:37:09,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:37:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:37:09,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:37:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:37:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:37:09,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:37:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:37:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:37:09,074 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:37:09,180 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:37:09,183 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:37:09,448 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:37:09,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:37:09,457 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:37:09,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:09 BoogieIcfgContainer [2022-11-02 20:37:09,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:37:09,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:37:09,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:37:09,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:37:09,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:37:08" (1/3) ... [2022-11-02 20:37:09,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22721904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:09, skipping insertion in model container [2022-11-02 20:37:09,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:37:08" (2/3) ... [2022-11-02 20:37:09,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22721904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:37:09, skipping insertion in model container [2022-11-02 20:37:09,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:37:09" (3/3) ... [2022-11-02 20:37:09,484 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2022-11-02 20:37:09,509 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:37:09,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:37:09,520 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:37:09,520 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:37:09,656 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:37:09,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 107 transitions, 238 flow [2022-11-02 20:37:09,759 INFO L130 PetriNetUnfolder]: 7/104 cut-off events. [2022-11-02 20:37:09,760 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:37:09,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 7/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2022-11-02 20:37:09,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 107 transitions, 238 flow [2022-11-02 20:37:09,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 93 transitions, 204 flow [2022-11-02 20:37:09,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:37:09,811 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73c5cdb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:37:09,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-02 20:37:09,864 INFO L130 PetriNetUnfolder]: 7/92 cut-off events. [2022-11-02 20:37:09,865 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:37:09,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:09,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:09,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 314609791, now seen corresponding path program 1 times [2022-11-02 20:37:09,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:09,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499694991] [2022-11-02 20:37:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:09,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:10,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:10,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499694991] [2022-11-02 20:37:10,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499694991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:10,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:10,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:37:10,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987157493] [2022-11-02 20:37:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:10,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:37:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:10,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:37:10,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:37:10,263 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 107 [2022-11-02 20:37:10,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 204 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2022-11-02 20:37:10,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:10,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 107 [2022-11-02 20:37:10,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:10,313 INFO L130 PetriNetUnfolder]: 3/89 cut-off events. [2022-11-02 20:37:10,314 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-02 20:37:10,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 89 events. 3/89 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 10/95 useless extension candidates. Maximal degree in co-relation 66. Up to 7 conditions per place. [2022-11-02 20:37:10,316 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 6 selfloop transitions, 0 changer transitions 1/89 dead transitions. [2022-11-02 20:37:10,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 89 transitions, 208 flow [2022-11-02 20:37:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:37:10,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:37:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-11-02 20:37:10,336 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2022-11-02 20:37:10,336 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-11-02 20:37:10,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-11-02 20:37:10,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:10,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-11-02 20:37:10,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 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) [2022-11-02 20:37:10,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2022-11-02 20:37:10,363 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2022-11-02 20:37:10,365 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 204 flow. Second operand 2 states and 202 transitions. [2022-11-02 20:37:10,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 89 transitions, 208 flow [2022-11-02 20:37:10,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:37:10,381 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 182 flow [2022-11-02 20:37:10,384 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=182, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2022-11-02 20:37:10,392 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, -5 predicate places. [2022-11-02 20:37:10,392 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 182 flow [2022-11-02 20:37:10,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2022-11-02 20:37:10,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:10,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:10,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:37:10,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:10,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:10,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1955065448, now seen corresponding path program 1 times [2022-11-02 20:37:10,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:10,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334806848] [2022-11-02 20:37:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:10,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:11,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:11,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334806848] [2022-11-02 20:37:11,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334806848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:11,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:11,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:37:11,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32194292] [2022-11-02 20:37:11,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:11,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:37:11,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:11,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:37:11,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:37:11,539 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2022-11-02 20:37:11,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 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) [2022-11-02 20:37:11,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:11,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2022-11-02 20:37:11,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:11,727 INFO L130 PetriNetUnfolder]: 53/322 cut-off events. [2022-11-02 20:37:11,727 INFO L131 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2022-11-02 20:37:11,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 322 events. 53/322 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1247 event pairs, 7 based on Foata normal form. 2/290 useless extension candidates. Maximal degree in co-relation 432. Up to 52 conditions per place. [2022-11-02 20:37:11,731 INFO L137 encePairwiseOnDemand]: 98/107 looper letters, 35 selfloop transitions, 9 changer transitions 4/120 dead transitions. [2022-11-02 20:37:11,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 354 flow [2022-11-02 20:37:11,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:37:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-02 20:37:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 644 transitions. [2022-11-02 20:37:11,736 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8598130841121495 [2022-11-02 20:37:11,737 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 644 transitions. [2022-11-02 20:37:11,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 644 transitions. [2022-11-02 20:37:11,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:11,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 644 transitions. [2022-11-02 20:37:11,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-02 20:37:11,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2022-11-02 20:37:11,757 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2022-11-02 20:37:11,757 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 182 flow. Second operand 7 states and 644 transitions. [2022-11-02 20:37:11,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 354 flow [2022-11-02 20:37:11,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 120 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:37:11,761 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 235 flow [2022-11-02 20:37:11,761 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=235, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2022-11-02 20:37:11,762 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2022-11-02 20:37:11,762 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 235 flow [2022-11-02 20:37:11,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 86.85714285714286) internal successors, (608), 7 states have internal predecessors, (608), 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) [2022-11-02 20:37:11,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:11,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:11,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:37:11,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:11,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash -804793571, now seen corresponding path program 1 times [2022-11-02 20:37:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:11,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366724453] [2022-11-02 20:37:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:11,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:12,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:12,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366724453] [2022-11-02 20:37:12,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366724453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:37:12,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:37:12,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:37:12,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391406346] [2022-11-02 20:37:12,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:12,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:37:12,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:12,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:37:12,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:37:12,421 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-11-02 20:37:12,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 235 flow. Second operand has 7 states, 7 states have (on average 79.71428571428571) internal successors, (558), 7 states have internal predecessors, (558), 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) [2022-11-02 20:37:12,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:12,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-11-02 20:37:12,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:13,240 INFO L130 PetriNetUnfolder]: 1426/3119 cut-off events. [2022-11-02 20:37:13,240 INFO L131 PetriNetUnfolder]: For 250/251 co-relation queries the response was YES. [2022-11-02 20:37:13,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5802 conditions, 3119 events. 1426/3119 cut-off events. For 250/251 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 23794 event pairs, 714 based on Foata normal form. 0/2590 useless extension candidates. Maximal degree in co-relation 5794. Up to 1285 conditions per place. [2022-11-02 20:37:13,272 INFO L137 encePairwiseOnDemand]: 96/107 looper letters, 61 selfloop transitions, 9 changer transitions 5/144 dead transitions. [2022-11-02 20:37:13,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 144 transitions, 497 flow [2022-11-02 20:37:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:13,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:37:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 770 transitions. [2022-11-02 20:37:13,277 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7995846313603323 [2022-11-02 20:37:13,277 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 770 transitions. [2022-11-02 20:37:13,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 770 transitions. [2022-11-02 20:37:13,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:13,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 770 transitions. [2022-11-02 20:37:13,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.55555555555556) internal successors, (770), 9 states have internal predecessors, (770), 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) [2022-11-02 20:37:13,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:37:13,284 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:37:13,284 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 235 flow. Second operand 9 states and 770 transitions. [2022-11-02 20:37:13,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 144 transitions, 497 flow [2022-11-02 20:37:13,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 144 transitions, 493 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-02 20:37:13,291 INFO L231 Difference]: Finished difference. Result has 109 places, 99 transitions, 285 flow [2022-11-02 20:37:13,291 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=285, PETRI_PLACES=109, PETRI_TRANSITIONS=99} [2022-11-02 20:37:13,292 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 13 predicate places. [2022-11-02 20:37:13,293 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 99 transitions, 285 flow [2022-11-02 20:37:13,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.71428571428571) internal successors, (558), 7 states have internal predecessors, (558), 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) [2022-11-02 20:37:13,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:13,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:13,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:37:13,294 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1429961801, now seen corresponding path program 2 times [2022-11-02 20:37:13,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:13,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771597746] [2022-11-02 20:37:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:13,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:13,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:13,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771597746] [2022-11-02 20:37:13,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771597746] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:37:13,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403500396] [2022-11-02 20:37:13,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:37:13,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:13,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:13,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:37:13,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:37:14,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:37:14,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:37:14,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:37:14,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:14,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:37:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:20,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403500396] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 20:37:20,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:37:20,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 12 [2022-11-02 20:37:20,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175849539] [2022-11-02 20:37:20,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:20,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:20,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:20,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:37:20,871 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2022-11-02 20:37:20,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 99 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:37:20,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:20,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2022-11-02 20:37:20,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:22,212 INFO L130 PetriNetUnfolder]: 1390/3242 cut-off events. [2022-11-02 20:37:22,212 INFO L131 PetriNetUnfolder]: For 1778/1868 co-relation queries the response was YES. [2022-11-02 20:37:22,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7269 conditions, 3242 events. 1390/3242 cut-off events. For 1778/1868 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 27047 event pairs, 262 based on Foata normal form. 5/3175 useless extension candidates. Maximal degree in co-relation 7257. Up to 376 conditions per place. [2022-11-02 20:37:22,249 INFO L137 encePairwiseOnDemand]: 99/107 looper letters, 101 selfloop transitions, 26 changer transitions 1/200 dead transitions. [2022-11-02 20:37:22,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 200 transitions, 895 flow [2022-11-02 20:37:22,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:37:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:37:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 917 transitions. [2022-11-02 20:37:22,254 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8570093457943925 [2022-11-02 20:37:22,260 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 917 transitions. [2022-11-02 20:37:22,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 917 transitions. [2022-11-02 20:37:22,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:22,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 917 transitions. [2022-11-02 20:37:22,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.7) internal successors, (917), 10 states have internal predecessors, (917), 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) [2022-11-02 20:37:22,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2022-11-02 20:37:22,269 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 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) [2022-11-02 20:37:22,269 INFO L175 Difference]: Start difference. First operand has 109 places, 99 transitions, 285 flow. Second operand 10 states and 917 transitions. [2022-11-02 20:37:22,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 200 transitions, 895 flow [2022-11-02 20:37:22,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 200 transitions, 864 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-11-02 20:37:22,284 INFO L231 Difference]: Finished difference. Result has 122 places, 123 transitions, 501 flow [2022-11-02 20:37:22,285 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=501, PETRI_PLACES=122, PETRI_TRANSITIONS=123} [2022-11-02 20:37:22,286 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 26 predicate places. [2022-11-02 20:37:22,287 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 123 transitions, 501 flow [2022-11-02 20:37:22,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:37:22,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:22,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:22,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:22,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:22,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:22,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1102317343, now seen corresponding path program 3 times [2022-11-02 20:37:22,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:22,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815608996] [2022-11-02 20:37:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:22,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:23,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:23,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815608996] [2022-11-02 20:37:23,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815608996] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:37:23,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996063468] [2022-11-02 20:37:23,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:37:23,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:23,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:23,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:37:23,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:37:23,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:37:23,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:37:23,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:37:23,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:23,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:37:26,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:26,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996063468] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 20:37:26,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:37:26,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 10] total 17 [2022-11-02 20:37:26,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240812317] [2022-11-02 20:37:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:37:26,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:37:26,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:37:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:37:26,400 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2022-11-02 20:37:26,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:37:26,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:26,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2022-11-02 20:37:26,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:27,482 INFO L130 PetriNetUnfolder]: 1907/4220 cut-off events. [2022-11-02 20:37:27,483 INFO L131 PetriNetUnfolder]: For 7397/7490 co-relation queries the response was YES. [2022-11-02 20:37:27,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12233 conditions, 4220 events. 1907/4220 cut-off events. For 7397/7490 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 36842 event pairs, 526 based on Foata normal form. 4/4061 useless extension candidates. Maximal degree in co-relation 12214. Up to 845 conditions per place. [2022-11-02 20:37:27,549 INFO L137 encePairwiseOnDemand]: 99/107 looper letters, 118 selfloop transitions, 37 changer transitions 1/228 dead transitions. [2022-11-02 20:37:27,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 228 transitions, 1400 flow [2022-11-02 20:37:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:37:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:37:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 822 transitions. [2022-11-02 20:37:27,552 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8535825545171339 [2022-11-02 20:37:27,552 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 822 transitions. [2022-11-02 20:37:27,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 822 transitions. [2022-11-02 20:37:27,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:27,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 822 transitions. [2022-11-02 20:37:27,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.33333333333333) internal successors, (822), 9 states have internal predecessors, (822), 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) [2022-11-02 20:37:27,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:37:27,559 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:37:27,560 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 501 flow. Second operand 9 states and 822 transitions. [2022-11-02 20:37:27,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 228 transitions, 1400 flow [2022-11-02 20:37:27,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 228 transitions, 1394 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-02 20:37:27,594 INFO L231 Difference]: Finished difference. Result has 136 places, 151 transitions, 859 flow [2022-11-02 20:37:27,594 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=859, PETRI_PLACES=136, PETRI_TRANSITIONS=151} [2022-11-02 20:37:27,598 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 40 predicate places. [2022-11-02 20:37:27,598 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 151 transitions, 859 flow [2022-11-02 20:37:27,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:37:27,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:27,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:27,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:27,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:27,813 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:27,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:27,814 INFO L85 PathProgramCache]: Analyzing trace with hash -10521467, now seen corresponding path program 1 times [2022-11-02 20:37:27,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:27,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546301811] [2022-11-02 20:37:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:27,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:28,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546301811] [2022-11-02 20:37:28,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546301811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:37:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915708606] [2022-11-02 20:37:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:28,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:28,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:28,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:37:28,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:37:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:28,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:37:28,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:28,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:37:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:28,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915708606] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:37:28,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:37:28,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-11-02 20:37:28,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491631737] [2022-11-02 20:37:28,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:37:28,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:37:28,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:28,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:37:28,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:37:28,750 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-11-02 20:37:28,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 151 transitions, 859 flow. Second operand has 14 states, 14 states have (on average 79.42857142857143) internal successors, (1112), 14 states have internal predecessors, (1112), 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) [2022-11-02 20:37:28,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:28,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-11-02 20:37:28,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:30,855 INFO L130 PetriNetUnfolder]: 3423/7536 cut-off events. [2022-11-02 20:37:30,856 INFO L131 PetriNetUnfolder]: For 18336/18385 co-relation queries the response was YES. [2022-11-02 20:37:30,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22929 conditions, 7536 events. 3423/7536 cut-off events. For 18336/18385 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 68722 event pairs, 626 based on Foata normal form. 33/7430 useless extension candidates. Maximal degree in co-relation 22903. Up to 1216 conditions per place. [2022-11-02 20:37:30,962 INFO L137 encePairwiseOnDemand]: 94/107 looper letters, 212 selfloop transitions, 77 changer transitions 3/361 dead transitions. [2022-11-02 20:37:30,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 361 transitions, 2878 flow [2022-11-02 20:37:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:37:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 20:37:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1399 transitions. [2022-11-02 20:37:30,966 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8171728971962616 [2022-11-02 20:37:30,967 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1399 transitions. [2022-11-02 20:37:30,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1399 transitions. [2022-11-02 20:37:30,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:37:30,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1399 transitions. [2022-11-02 20:37:30,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 87.4375) internal successors, (1399), 16 states have internal predecessors, (1399), 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) [2022-11-02 20:37:30,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2022-11-02 20:37:30,975 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 107.0) internal successors, (1819), 17 states have internal predecessors, (1819), 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) [2022-11-02 20:37:30,975 INFO L175 Difference]: Start difference. First operand has 136 places, 151 transitions, 859 flow. Second operand 16 states and 1399 transitions. [2022-11-02 20:37:30,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 361 transitions, 2878 flow [2022-11-02 20:37:31,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 361 transitions, 2818 flow, removed 30 selfloop flow, removed 0 redundant places. [2022-11-02 20:37:31,124 INFO L231 Difference]: Finished difference. Result has 162 places, 207 transitions, 1559 flow [2022-11-02 20:37:31,125 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1559, PETRI_PLACES=162, PETRI_TRANSITIONS=207} [2022-11-02 20:37:31,125 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 66 predicate places. [2022-11-02 20:37:31,125 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 207 transitions, 1559 flow [2022-11-02 20:37:31,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 79.42857142857143) internal successors, (1112), 14 states have internal predecessors, (1112), 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) [2022-11-02 20:37:31,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:37:31,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:37:31,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:37:31,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:31,341 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:37:31,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:37:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1458883325, now seen corresponding path program 4 times [2022-11-02 20:37:31,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:37:31,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660843150] [2022-11-02 20:37:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:37:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:37:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:37:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:31,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:37:31,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660843150] [2022-11-02 20:37:31,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660843150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:37:31,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605542965] [2022-11-02 20:37:31,741 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:37:31,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:37:31,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:37:31,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:37:31,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:37:31,891 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:37:31,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:37:31,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:37:31,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:37:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:32,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:37:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:37:56,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605542965] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:37:56,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:37:56,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 13 [2022-11-02 20:37:56,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412481933] [2022-11-02 20:37:56,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:37:56,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:37:56,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:37:56,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:37:56,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=108, Unknown=8, NotChecked=0, Total=156 [2022-11-02 20:37:56,444 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-11-02 20:37:56,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 207 transitions, 1559 flow. Second operand has 13 states, 13 states have (on average 79.84615384615384) internal successors, (1038), 13 states have internal predecessors, (1038), 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) [2022-11-02 20:37:56,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:37:56,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-11-02 20:37:56,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:37:58,647 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_thread2Thread1of1ForFork2_~i~1 4294967296))) (and (forall ((aux_mod_~a~0_21 Int)) (or (>= aux_mod_~a~0_21 4294967296) (<= aux_mod_~a~0_21 (mod c_thread1Thread1of1ForFork1_~i~0 4294967296)) (let ((.cse0 (* 4294967295 aux_mod_~a~0_21))) (< (+ (* 4294967296 (div .cse0 4294967296)) .cse1) .cse0)))) (let ((.cse2 (* 4294967295 c_~a~0))) (< (+ .cse1 (* (div .cse2 4294967296) 4294967296)) .cse2)))) is different from false [2022-11-02 20:38:03,823 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((aux_mod_~a~0_21 Int)) (or (>= aux_mod_~a~0_21 4294967296) (<= aux_mod_~a~0_21 (mod c_thread1Thread1of1ForFork1_~i~0 4294967296)) (let ((.cse0 (* 4294967295 aux_mod_~a~0_21))) (< (+ (* 4294967296 (div .cse0 4294967296)) (mod c_thread2Thread1of1ForFork2_~i~1 4294967296)) .cse0)))) (< (mod c_thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ c_~b~0 c_~a~0) 4294967296))) is different from false [2022-11-02 20:38:25,545 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((aux_mod_~a~0_21 Int)) (or (>= aux_mod_~a~0_21 4294967296) (<= aux_mod_~a~0_21 (mod c_thread1Thread1of1ForFork1_~i~0 4294967296)) (let ((.cse0 (* 4294967295 aux_mod_~a~0_21))) (< (+ (* 4294967296 (div .cse0 4294967296)) (mod c_thread2Thread1of1ForFork2_~i~1 4294967296)) .cse0)))) (<= (div (+ c_~b~0 c_~a~0) 4294967296) (div (+ (- 1) c_~b~0 c_~a~0) 4294967296))) is different from false [2022-11-02 20:38:40,188 INFO L130 PetriNetUnfolder]: 7805/16126 cut-off events. [2022-11-02 20:38:40,188 INFO L131 PetriNetUnfolder]: For 67290/67307 co-relation queries the response was YES. [2022-11-02 20:38:40,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59277 conditions, 16126 events. 7805/16126 cut-off events. For 67290/67307 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 157426 event pairs, 1350 based on Foata normal form. 22/15851 useless extension candidates. Maximal degree in co-relation 59239. Up to 5974 conditions per place. [2022-11-02 20:38:40,474 INFO L137 encePairwiseOnDemand]: 90/107 looper letters, 292 selfloop transitions, 328 changer transitions 3/692 dead transitions. [2022-11-02 20:38:40,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 692 transitions, 7049 flow [2022-11-02 20:38:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-02 20:38:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-02 20:38:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2351 transitions. [2022-11-02 20:38:40,481 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8137763932156455 [2022-11-02 20:38:40,481 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2351 transitions. [2022-11-02 20:38:40,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2351 transitions. [2022-11-02 20:38:40,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:40,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2351 transitions. [2022-11-02 20:38:40,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 87.07407407407408) internal successors, (2351), 27 states have internal predecessors, (2351), 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) [2022-11-02 20:38:40,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 107.0) internal successors, (2996), 28 states have internal predecessors, (2996), 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) [2022-11-02 20:38:40,497 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 107.0) internal successors, (2996), 28 states have internal predecessors, (2996), 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) [2022-11-02 20:38:40,497 INFO L175 Difference]: Start difference. First operand has 162 places, 207 transitions, 1559 flow. Second operand 27 states and 2351 transitions. [2022-11-02 20:38:40,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 692 transitions, 7049 flow [2022-11-02 20:38:41,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 692 transitions, 6987 flow, removed 30 selfloop flow, removed 1 redundant places. [2022-11-02 20:38:41,090 INFO L231 Difference]: Finished difference. Result has 210 places, 513 transitions, 6026 flow [2022-11-02 20:38:41,090 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1511, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=6026, PETRI_PLACES=210, PETRI_TRANSITIONS=513} [2022-11-02 20:38:41,091 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 114 predicate places. [2022-11-02 20:38:41,091 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 513 transitions, 6026 flow [2022-11-02 20:38:41,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 79.84615384615384) internal successors, (1038), 13 states have internal predecessors, (1038), 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) [2022-11-02 20:38:41,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:41,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:41,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:41,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:38:41,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:38:41,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1435954547, now seen corresponding path program 5 times [2022-11-02 20:38:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:41,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034655639] [2022-11-02 20:38:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:41,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:41,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:41,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034655639] [2022-11-02 20:38:41,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034655639] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:38:41,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749151507] [2022-11-02 20:38:41,692 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:38:41,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:38:41,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:38:41,697 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:38:41,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:38:41,880 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:38:41,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:38:41,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:38:41,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:42,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:42,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749151507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:38:42,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:38:42,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2022-11-02 20:38:42,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130843835] [2022-11-02 20:38:42,368 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:38:42,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:38:42,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:42,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:38:42,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:38:42,370 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-11-02 20:38:42,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 513 transitions, 6026 flow. Second operand has 14 states, 14 states have (on average 79.71428571428571) internal successors, (1116), 14 states have internal predecessors, (1116), 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) [2022-11-02 20:38:42,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:42,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-11-02 20:38:42,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:38:49,038 INFO L130 PetriNetUnfolder]: 9511/19930 cut-off events. [2022-11-02 20:38:49,038 INFO L131 PetriNetUnfolder]: For 198997/200211 co-relation queries the response was YES. [2022-11-02 20:38:49,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106091 conditions, 19930 events. 9511/19930 cut-off events. For 198997/200211 co-relation queries the response was YES. Maximal size of possible extension queue 1268. Compared 201685 event pairs, 1587 based on Foata normal form. 107/19698 useless extension candidates. Maximal degree in co-relation 106030. Up to 5046 conditions per place. [2022-11-02 20:38:49,550 INFO L137 encePairwiseOnDemand]: 94/107 looper letters, 360 selfloop transitions, 474 changer transitions 1/904 dead transitions. [2022-11-02 20:38:49,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 904 transitions, 12890 flow [2022-11-02 20:38:49,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:38:49,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:38:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1128 transitions. [2022-11-02 20:38:49,554 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8109273903666427 [2022-11-02 20:38:49,554 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1128 transitions. [2022-11-02 20:38:49,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1128 transitions. [2022-11-02 20:38:49,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:38:49,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1128 transitions. [2022-11-02 20:38:49,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 86.76923076923077) internal successors, (1128), 13 states have internal predecessors, (1128), 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) [2022-11-02 20:38:49,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2022-11-02 20:38:49,562 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 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) [2022-11-02 20:38:49,562 INFO L175 Difference]: Start difference. First operand has 210 places, 513 transitions, 6026 flow. Second operand 13 states and 1128 transitions. [2022-11-02 20:38:49,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 904 transitions, 12890 flow [2022-11-02 20:38:51,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 904 transitions, 12378 flow, removed 256 selfloop flow, removed 0 redundant places. [2022-11-02 20:38:51,384 INFO L231 Difference]: Finished difference. Result has 230 places, 722 transitions, 10567 flow [2022-11-02 20:38:51,385 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=5672, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10567, PETRI_PLACES=230, PETRI_TRANSITIONS=722} [2022-11-02 20:38:51,386 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 134 predicate places. [2022-11-02 20:38:51,386 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 722 transitions, 10567 flow [2022-11-02 20:38:51,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 79.71428571428571) internal successors, (1116), 14 states have internal predecessors, (1116), 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) [2022-11-02 20:38:51,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:38:51,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:38:51,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:38:51,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:38:51,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:38:51,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:38:51,588 INFO L85 PathProgramCache]: Analyzing trace with hash -721287095, now seen corresponding path program 6 times [2022-11-02 20:38:51,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:38:51,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988245274] [2022-11-02 20:38:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:38:51,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:38:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:38:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:52,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:38:52,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988245274] [2022-11-02 20:38:52,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988245274] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:38:52,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133347941] [2022-11-02 20:38:52,101 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 20:38:52,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:38:52,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:38:52,103 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:38:52,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:38:52,298 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-02 20:38:52,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:38:52,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:38:52,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:38:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:52,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:38:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:38:54,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133347941] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 20:38:54,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:38:54,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 13 [2022-11-02 20:38:54,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432520665] [2022-11-02 20:38:54,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:38:54,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:38:54,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:38:54,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:38:54,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:38:54,440 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2022-11-02 20:38:54,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 722 transitions, 10567 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:38:54,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:38:54,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2022-11-02 20:38:54,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:01,855 INFO L130 PetriNetUnfolder]: 8322/18479 cut-off events. [2022-11-02 20:39:01,855 INFO L131 PetriNetUnfolder]: For 234701/235993 co-relation queries the response was YES. [2022-11-02 20:39:02,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103360 conditions, 18479 events. 8322/18479 cut-off events. For 234701/235993 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 195021 event pairs, 2071 based on Foata normal form. 204/18052 useless extension candidates. Maximal degree in co-relation 103290. Up to 4452 conditions per place. [2022-11-02 20:39:02,455 INFO L137 encePairwiseOnDemand]: 99/107 looper letters, 703 selfloop transitions, 160 changer transitions 1/963 dead transitions. [2022-11-02 20:39:02,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 963 transitions, 15781 flow [2022-11-02 20:39:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:39:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:39:02,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 824 transitions. [2022-11-02 20:39:02,462 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8556593977154725 [2022-11-02 20:39:02,462 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 824 transitions. [2022-11-02 20:39:02,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 824 transitions. [2022-11-02 20:39:02,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:02,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 824 transitions. [2022-11-02 20:39:02,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.55555555555556) internal successors, (824), 9 states have internal predecessors, (824), 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) [2022-11-02 20:39:02,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:39:02,478 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:39:02,478 INFO L175 Difference]: Start difference. First operand has 230 places, 722 transitions, 10567 flow. Second operand 9 states and 824 transitions. [2022-11-02 20:39:02,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 963 transitions, 15781 flow [2022-11-02 20:39:04,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 963 transitions, 15525 flow, removed 127 selfloop flow, removed 1 redundant places. [2022-11-02 20:39:04,781 INFO L231 Difference]: Finished difference. Result has 241 places, 742 transitions, 11085 flow [2022-11-02 20:39:04,782 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=10397, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11085, PETRI_PLACES=241, PETRI_TRANSITIONS=742} [2022-11-02 20:39:04,783 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 145 predicate places. [2022-11-02 20:39:04,783 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 742 transitions, 11085 flow [2022-11-02 20:39:04,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:39:04,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:04,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:04,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:04,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-02 20:39:04,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:39:04,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1748718723, now seen corresponding path program 7 times [2022-11-02 20:39:04,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:04,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859179243] [2022-11-02 20:39:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:05,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:05,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859179243] [2022-11-02 20:39:05,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859179243] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:39:05,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309891849] [2022-11-02 20:39:05,493 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-02 20:39:05,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:39:05,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:05,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:39:05,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:39:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:05,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:39:05,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:06,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:39:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:12,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309891849] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 20:39:12,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:39:12,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 10] total 17 [2022-11-02 20:39:12,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880066645] [2022-11-02 20:39:12,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:12,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:39:12,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:12,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:39:12,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:39:12,237 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2022-11-02 20:39:12,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 742 transitions, 11085 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:39:12,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:12,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2022-11-02 20:39:12,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:18,389 INFO L130 PetriNetUnfolder]: 8377/18484 cut-off events. [2022-11-02 20:39:18,390 INFO L131 PetriNetUnfolder]: For 245105/246265 co-relation queries the response was YES. [2022-11-02 20:39:18,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105860 conditions, 18484 events. 8377/18484 cut-off events. For 245105/246265 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 194655 event pairs, 1885 based on Foata normal form. 210/18150 useless extension candidates. Maximal degree in co-relation 105785. Up to 4510 conditions per place. [2022-11-02 20:39:18,758 INFO L137 encePairwiseOnDemand]: 99/107 looper letters, 326 selfloop transitions, 434 changer transitions 1/860 dead transitions. [2022-11-02 20:39:18,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 860 transitions, 14054 flow [2022-11-02 20:39:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:39:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:39:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 822 transitions. [2022-11-02 20:39:18,762 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8535825545171339 [2022-11-02 20:39:18,762 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 822 transitions. [2022-11-02 20:39:18,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 822 transitions. [2022-11-02 20:39:18,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:18,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 822 transitions. [2022-11-02 20:39:18,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.33333333333333) internal successors, (822), 9 states have internal predecessors, (822), 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) [2022-11-02 20:39:18,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:39:18,769 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 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) [2022-11-02 20:39:18,769 INFO L175 Difference]: Start difference. First operand has 241 places, 742 transitions, 11085 flow. Second operand 9 states and 822 transitions. [2022-11-02 20:39:18,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 860 transitions, 14054 flow [2022-11-02 20:39:20,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 860 transitions, 13923 flow, removed 13 selfloop flow, removed 2 redundant places. [2022-11-02 20:39:20,937 INFO L231 Difference]: Finished difference. Result has 250 places, 755 transitions, 12234 flow [2022-11-02 20:39:20,938 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=10968, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=421, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12234, PETRI_PLACES=250, PETRI_TRANSITIONS=755} [2022-11-02 20:39:20,939 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 154 predicate places. [2022-11-02 20:39:20,939 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 755 transitions, 12234 flow [2022-11-02 20:39:20,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-02 20:39:20,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:20,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:20,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:39:21,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:39:21,142 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:39:21,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:21,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2099302305, now seen corresponding path program 8 times [2022-11-02 20:39:21,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:21,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645724033] [2022-11-02 20:39:21,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:21,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:21,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:21,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645724033] [2022-11-02 20:39:21,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645724033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:39:21,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:39:21,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:39:21,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777163005] [2022-11-02 20:39:21,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:39:21,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:39:21,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:21,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:39:21,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:39:21,505 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-11-02 20:39:21,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 755 transitions, 12234 flow. Second operand has 7 states, 7 states have (on average 79.71428571428571) internal successors, (558), 7 states have internal predecessors, (558), 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) [2022-11-02 20:39:21,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:21,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-11-02 20:39:21,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:39:28,907 INFO L130 PetriNetUnfolder]: 10712/22847 cut-off events. [2022-11-02 20:39:28,907 INFO L131 PetriNetUnfolder]: For 326291/327586 co-relation queries the response was YES. [2022-11-02 20:39:29,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135532 conditions, 22847 events. 10712/22847 cut-off events. For 326291/327586 co-relation queries the response was YES. Maximal size of possible extension queue 1466. Compared 240447 event pairs, 2832 based on Foata normal form. 70/22434 useless extension candidates. Maximal degree in co-relation 135454. Up to 8087 conditions per place. [2022-11-02 20:39:29,390 INFO L137 encePairwiseOnDemand]: 96/107 looper letters, 778 selfloop transitions, 214 changer transitions 4/1065 dead transitions. [2022-11-02 20:39:29,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 1065 transitions, 18624 flow [2022-11-02 20:39:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:39:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-02 20:39:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 713 transitions. [2022-11-02 20:39:29,393 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8329439252336449 [2022-11-02 20:39:29,393 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 713 transitions. [2022-11-02 20:39:29,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 713 transitions. [2022-11-02 20:39:29,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:39:29,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 713 transitions. [2022-11-02 20:39:29,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.125) internal successors, (713), 8 states have internal predecessors, (713), 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) [2022-11-02 20:39:29,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 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) [2022-11-02 20:39:29,398 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 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) [2022-11-02 20:39:29,399 INFO L175 Difference]: Start difference. First operand has 250 places, 755 transitions, 12234 flow. Second operand 8 states and 713 transitions. [2022-11-02 20:39:29,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 1065 transitions, 18624 flow [2022-11-02 20:39:32,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 1065 transitions, 17926 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-11-02 20:39:32,349 INFO L231 Difference]: Finished difference. Result has 259 places, 846 transitions, 14238 flow [2022-11-02 20:39:32,350 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=11727, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14238, PETRI_PLACES=259, PETRI_TRANSITIONS=846} [2022-11-02 20:39:32,350 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 163 predicate places. [2022-11-02 20:39:32,350 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 846 transitions, 14238 flow [2022-11-02 20:39:32,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.71428571428571) internal successors, (558), 7 states have internal predecessors, (558), 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) [2022-11-02 20:39:32,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:39:32,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:39:32,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:39:32,351 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:39:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:39:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash 972292161, now seen corresponding path program 9 times [2022-11-02 20:39:32,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:39:32,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083455258] [2022-11-02 20:39:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:39:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:39:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:39:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:32,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:39:32,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083455258] [2022-11-02 20:39:32,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083455258] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:39:32,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653757518] [2022-11-02 20:39:32,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:39:32,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:39:32,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:39:32,917 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:39:32,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:39:33,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-02 20:39:33,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:39:33,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:39:33,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:39:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:33,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:39:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:39:54,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653757518] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:39:54,255 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:39:54,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 22 [2022-11-02 20:39:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210656715] [2022-11-02 20:39:54,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:39:54,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:39:54,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:39:54,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:39:54,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=347, Unknown=10, NotChecked=0, Total=462 [2022-11-02 20:39:54,259 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2022-11-02 20:39:54,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 846 transitions, 14238 flow. Second operand has 22 states, 22 states have (on average 77.95454545454545) internal successors, (1715), 22 states have internal predecessors, (1715), 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) [2022-11-02 20:39:54,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:39:54,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2022-11-02 20:39:54,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:40:02,478 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_thread3Thread1of1ForFork0_~i~2 4294967296))) (and (let ((.cse1 (* 4294967296 (div c_~b~0 4294967296))) (.cse0 (* 4294967296 (div (+ c_~b~0 c_~a~0) 4294967296)))) (or (and (<= (+ .cse0 1) (+ .cse1 (* (div c_thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) c_~a~0)) (= c_thread3Thread1of1ForFork0_~i~2 0)) (<= (+ .cse1 c_~a~0 1) .cse0))) (let ((.cse2 (* 4294967295 c_~a~0))) (< (* (div (+ .cse2 .cse3) 4294967296) 4294967296) .cse2)) (forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (let ((.cse5 (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296)))) (or (let ((.cse4 (* aux_mod_aux_mod_~a~0_21_32 4294967295))) (< (* (div (+ .cse4 .cse3) 4294967296) 4294967296) .cse4)) (<= aux_mod_aux_mod_~a~0_21_32 (mod c_thread1Thread1of1ForFork1_~i~0 4294967296)) (< (mod (+ c_thread1Thread1of1ForFork1_~i~0 1) 4294967296) .cse5) (< .cse5 0) (>= aux_mod_aux_mod_~a~0_21_32 4294967296)))))) is different from false [2022-11-02 20:40:04,517 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_thread3Thread1of1ForFork0_~i~2 4294967296))) (let ((.cse1 (mod (+ c_thread1Thread1of1ForFork1_~i~0 1) 4294967296)) (.cse0 (let ((.cse7 (* 4294967295 c_~a~0))) (< (* (div (+ .cse7 .cse4) 4294967296) 4294967296) .cse7))) (.cse5 (mod c_thread1Thread1of1ForFork1_~i~0 4294967296)) (.cse2 (mod c_~a~0 4294967296))) (and (or .cse0 (< .cse1 .cse2)) (forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (let ((.cse6 (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296)))) (or (let ((.cse3 (* aux_mod_aux_mod_~a~0_21_32 4294967295))) (< (* (div (+ .cse3 .cse4) 4294967296) 4294967296) .cse3)) (<= aux_mod_aux_mod_~a~0_21_32 .cse5) (< .cse1 .cse6) (< .cse6 0) (>= aux_mod_aux_mod_~a~0_21_32 4294967296)))) (or .cse0 (< .cse5 .cse2))))) is different from false [2022-11-02 20:40:29,986 INFO L130 PetriNetUnfolder]: 20848/41309 cut-off events. [2022-11-02 20:40:29,986 INFO L131 PetriNetUnfolder]: For 705703/708048 co-relation queries the response was YES. [2022-11-02 20:40:30,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265837 conditions, 41309 events. 20848/41309 cut-off events. For 705703/708048 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 435589 event pairs, 3177 based on Foata normal form. 193/40782 useless extension candidates. Maximal degree in co-relation 265754. Up to 19919 conditions per place. [2022-11-02 20:40:31,107 INFO L137 encePairwiseOnDemand]: 91/107 looper letters, 1406 selfloop transitions, 954 changer transitions 2/2430 dead transitions. [2022-11-02 20:40:31,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 2430 transitions, 45191 flow [2022-11-02 20:40:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-02 20:40:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-02 20:40:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 3234 transitions. [2022-11-02 20:40:31,114 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7953762911952779 [2022-11-02 20:40:31,114 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 3234 transitions. [2022-11-02 20:40:31,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 3234 transitions. [2022-11-02 20:40:31,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:40:31,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 3234 transitions. [2022-11-02 20:40:31,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 85.10526315789474) internal successors, (3234), 38 states have internal predecessors, (3234), 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) [2022-11-02 20:40:31,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 107.0) internal successors, (4173), 39 states have internal predecessors, (4173), 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) [2022-11-02 20:40:31,132 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 107.0) internal successors, (4173), 39 states have internal predecessors, (4173), 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) [2022-11-02 20:40:31,132 INFO L175 Difference]: Start difference. First operand has 259 places, 846 transitions, 14238 flow. Second operand 38 states and 3234 transitions. [2022-11-02 20:40:31,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 2430 transitions, 45191 flow [2022-11-02 20:40:42,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 2430 transitions, 44673 flow, removed 155 selfloop flow, removed 1 redundant places. [2022-11-02 20:40:42,599 INFO L231 Difference]: Finished difference. Result has 318 places, 1693 transitions, 33683 flow [2022-11-02 20:40:42,600 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=14117, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=33683, PETRI_PLACES=318, PETRI_TRANSITIONS=1693} [2022-11-02 20:40:42,602 INFO L287 CegarLoopForPetriNet]: 96 programPoint places, 222 predicate places. [2022-11-02 20:40:42,602 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 1693 transitions, 33683 flow [2022-11-02 20:40:42,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 77.95454545454545) internal successors, (1715), 22 states have internal predecessors, (1715), 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) [2022-11-02 20:40:42,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:40:42,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:40:42,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:40:42,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:40:42,822 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-02 20:40:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:40:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2045901889, now seen corresponding path program 10 times [2022-11-02 20:40:42,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:40:42,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373511440] [2022-11-02 20:40:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:40:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:40:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:40:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:43,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:40:43,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373511440] [2022-11-02 20:40:43,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373511440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:40:43,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881289020] [2022-11-02 20:40:43,161 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:40:43,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:40:43,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:40:43,165 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:40:43,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220c30ff-7631-4c2d-8aef-ad3ec1616350/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:40:43,317 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:40:43,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:40:43,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 20:40:43,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:40:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:43,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:40:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:40:45,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881289020] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 20:40:45,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:40:45,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2022-11-02 20:40:45,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288042039] [2022-11-02 20:40:45,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:40:45,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:40:45,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:40:45,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:40:45,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:40:45,491 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 107 [2022-11-02 20:40:45,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 1693 transitions, 33683 flow. Second operand has 8 states, 8 states have (on average 77.5) internal successors, (620), 8 states have internal predecessors, (620), 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) [2022-11-02 20:40:45,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:40:45,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 107 [2022-11-02 20:40:45,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:40:58,041 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([268] L57-2-->L57-3: Formula: (= v_thread3Thread1of1ForFork0_~i~2_7 |v_thread3Thread1of1ForFork0_#t~post3_1|) InVars {thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7} OutVars{thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7, thread3Thread1of1ForFork0_#t~post3=|v_thread3Thread1of1ForFork0_#t~post3_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~post3][1254], [60#L74-4true, 21#L57-3true, 3681#true, 116#true, Black: 3655#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3481#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3477#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), 633#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3668#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3672#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0) (<= (+ (* (div thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296) ~a~0) (* (div ~a~0 4294967296) 4294967296)) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3663#(and (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3165#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), Black: 3662#(= thread2Thread1of1ForFork2_~i~1 0), Black: 3009#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3670#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3161#(and (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296)) (< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0))), Black: 3005#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), Black: 1142#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1622#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (< 0 (mod ~b~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 1639#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 1620#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 1635#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0) (<= (+ (* (div ~a~0 4294967296) 4294967296) thread2Thread1of1ForFork2_~i~1 (* (div ~b~0 4294967296) 4294967296) 1) (+ (* 4294967296 (div thread2Thread1of1ForFork2_~i~1 4294967296)) ~b~0 ~a~0)) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1633#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (< 0 (mod ~b~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1128#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), Black: 954#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), Black: 1631#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 2150#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 1624#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0) (<= (+ (* (div ~a~0 4294967296) 4294967296) thread2Thread1of1ForFork2_~i~1 (* (div ~b~0 4294967296) 4294967296) 1) (+ (* 4294967296 (div thread2Thread1of1ForFork2_~i~1 4294967296)) ~b~0 ~a~0))), Black: 1130#(and (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0)) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), Black: 1617#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 1132#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), Black: 1657#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 1637#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 976#(< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0)), Black: 1853#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (not (< 0 (mod ~b~0 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1629#(and (= thread1Thread1of1ForFork1_~i~0 0) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 2128#(and (forall ((aux_mod_~a~0_21 Int)) (or (< (+ (* 4294967296 (div (* 4294967295 aux_mod_~a~0_21) 4294967296)) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 aux_mod_~a~0_21)) (<= aux_mod_~a~0_21 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (>= aux_mod_~a~0_21 4294967296))) (< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0))), Black: 2669#(and (< 0 (mod ~a~0 4294967296)) (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 2012#(forall ((aux_mod_~a~0_21 Int)) (or (< (+ (* 4294967296 (div (* 4294967295 aux_mod_~a~0_21) 4294967296)) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 aux_mod_~a~0_21)) (<= aux_mod_~a~0_21 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (>= aux_mod_~a~0_21 4294967296))), Black: 2139#(and (not (< 0 (mod ~b~0 4294967296))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 2660#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 2135#(and (= thread1Thread1of1ForFork1_~i~0 0) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 2667#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1798#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (not (< 0 (mod ~b~0 4294967296)))), Black: 2671#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 2663#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 2132#(and (forall ((aux_mod_~a~0_21 Int)) (or (< (+ (* 4294967296 (div (* 4294967295 aux_mod_~a~0_21) 4294967296)) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 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4294967296))), 1424#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 17#L41-4true]) [2022-11-02 20:40:58,042 INFO L383 tUnfolder$Statistics]: this new event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,043 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,043 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,043 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,044 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([268] L57-2-->L57-3: Formula: (= v_thread3Thread1of1ForFork0_~i~2_7 |v_thread3Thread1of1ForFork0_#t~post3_1|) InVars {thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7} OutVars{thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7, thread3Thread1of1ForFork0_#t~post3=|v_thread3Thread1of1ForFork0_#t~post3_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~post3][531], [60#L74-4true, 4723#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), 21#L57-3true, 3681#true, 116#true, Black: 3655#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3481#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3477#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod 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~b~0 ~a~0) 4294967296)), Black: 119#(and (= ~x_2~0 0) (= ~x_1~0 0)), Black: 4194#(and (= |thread1Thread1of1ForFork1_#t~post1| 0) (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~b~0 ~a~0)) (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 637#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296))), Black: 2141#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 2153#(and (<= (+ (* (div ~a~0 4294967296) 4294967296) thread1Thread1of1ForFork1_~i~0 1) (+ (* (div thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296) ~a~0)) (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 4201#(and (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~b~0 ~a~0)) (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 438#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 3163#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) 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aux_div_aux_mod_~a~0_21_32 4294967296)) 0) (>= aux_mod_aux_mod_~a~0_21_32 4294967296)))), Black: 4185#(and (= |thread1Thread1of1ForFork1_#t~post1| 0) (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), 134#(= thread3Thread1of1ForFork0_~i~2 0), Black: 3828#(and (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 4014#(or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))), Black: 4032#(forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (or (<= aux_mod_aux_mod_~a~0_21_32 (mod 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(= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 144#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 142#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)), 1652#true, 3651#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), 113#true, 3#L50true, 1424#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 17#L41-4true]) [2022-11-02 20:40:58,046 INFO L383 tUnfolder$Statistics]: this new event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,046 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,046 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:40:58,047 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:00,935 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([268] L57-2-->L57-3: Formula: (= v_thread3Thread1of1ForFork0_~i~2_7 |v_thread3Thread1of1ForFork0_#t~post3_1|) InVars {thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7} OutVars{thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7, thread3Thread1of1ForFork0_#t~post3=|v_thread3Thread1of1ForFork0_#t~post3_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~post3][1254], [60#L74-4true, 21#L57-3true, 3681#true, 116#true, 44#L49-4true, Black: 3655#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3481#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3477#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), 633#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3668#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3672#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0) (<= 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aux_div_aux_mod_~a~0_21_32 4294967296))) (< (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296)) 0) (>= aux_mod_aux_mod_~a~0_21_32 4294967296)))), Black: 4215#(and (or (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)) (or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 146#(and (<= (+ (* 4294967296 (div thread2Thread1of1ForFork2_~i~1 4294967296)) ~b~0 ~a~0) (+ (* (div ~a~0 4294967296) 4294967296) (* (div ~b~0 4294967296) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 144#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 142#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)), 3651#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), 113#true, 4725#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (<= (+ (* (div ~b~0 4294967296) 4294967296) 1) ~b~0)), 2689#(or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))), 652#(or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))), 1424#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 17#L41-4true, 1935#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))]) [2022-11-02 20:41:00,936 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-02 20:41:00,936 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is cut-off event [2022-11-02 20:41:00,937 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is cut-off event [2022-11-02 20:41:00,937 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is cut-off event [2022-11-02 20:41:01,049 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([268] L57-2-->L57-3: Formula: (= v_thread3Thread1of1ForFork0_~i~2_7 |v_thread3Thread1of1ForFork0_#t~post3_1|) InVars {thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7} OutVars{thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7, thread3Thread1of1ForFork0_#t~post3=|v_thread3Thread1of1ForFork0_#t~post3_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~post3][1254], [60#L74-4true, 21#L57-3true, 3681#true, 116#true, Black: 3655#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3481#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3477#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), 633#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) 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~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 1798#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (not (< 0 (mod ~b~0 4294967296)))), Black: 2671#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 2663#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 2132#(and (forall ((aux_mod_~a~0_21 Int)) (or (< (+ (* 4294967296 (div (* 4294967295 aux_mod_~a~0_21) 4294967296)) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 aux_mod_~a~0_21)) (<= aux_mod_~a~0_21 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (>= aux_mod_~a~0_21 4294967296))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 2185#(= thread2Thread1of1ForFork2_~i~1 0), Black: 1655#(and (= 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4294967296) ~b~0 ~a~0))), Black: 2148#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 3683#(= thread1Thread1of1ForFork1_~i~0 0), Black: 2665#(and (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 4173#(and (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~b~0 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 0) (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1656#(and (<= (+ (* (div ~a~0 4294967296) 4294967296) thread1Thread1of1ForFork1_~i~0 1) (+ (* (div thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296) ~a~0)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 1658#(<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)), Black: 4179#(and (< 0 (mod ~a~0 4294967296)) (= |thread1Thread1of1ForFork1_#t~post1| 0) (= thread1Thread1of1ForFork1_~i~0 1) (= thread3Thread1of1ForFork0_~i~2 0)), 2466#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), Black: 460#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3687#(and (or (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (and (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~a~0 (* (div ~b~0 4294967296) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0))) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 2137#(and (<= (+ (* (div ~a~0 4294967296) 4294967296) thread1Thread1of1ForFork1_~i~0 1) (+ (* (div thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296) ~a~0)) (= thread1Thread1of1ForFork1_~i~0 0) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 2144#(and (forall ((aux_mod_~a~0_21 Int)) (or (< (+ (* 4294967296 (div (* 4294967295 aux_mod_~a~0_21) 4294967296)) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 aux_mod_~a~0_21)) (<= aux_mod_~a~0_21 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (>= aux_mod_~a~0_21 4294967296))) (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296))), Black: 4211#(and (or (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)) (or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0)))), Black: 120#(and (= ~x_2~0 0) (= ~x_3~0 0) (= ~x_1~0 0)), Black: 1659#(and (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~b~0 ~a~0)) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 630#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0))), Black: 161#(<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)), Black: 3839#(and (< 0 (mod ~a~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1935#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), Black: 637#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div 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(<= (+ (* (div ~a~0 4294967296) 4294967296) thread1Thread1of1ForFork1_~i~0 1) (+ (* (div thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296) ~a~0)) (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 4201#(and (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~b~0 ~a~0)) (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 2146#(and (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0))), Black: 3686#(or (<= (+ 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4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3828#(and (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 4014#(or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))), Black: 4032#(forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (or (<= aux_mod_aux_mod_~a~0_21_32 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* aux_mod_aux_mod_~a~0_21_32 4294967295)) 4294967296) 4294967296) (* aux_mod_aux_mod_~a~0_21_32 4294967295)) (< (mod (+ thread1Thread1of1ForFork1_~i~0 1) 4294967296) (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296))) (< (+ 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(mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 146#(and (<= (+ (* 4294967296 (div thread2Thread1of1ForFork2_~i~1 4294967296)) ~b~0 ~a~0) (+ (* (div ~a~0 4294967296) 4294967296) (* (div ~b~0 4294967296) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), 39#L49-6true, Black: 144#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 142#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)), 1652#true, 3651#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), 113#true, 4725#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (<= (+ (* (div ~b~0 4294967296) 4294967296) 1) ~b~0)), 2689#(or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))), 652#(or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))), 1424#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 17#L41-4true]) [2022-11-02 20:41:01,050 INFO L383 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-11-02 20:41:01,050 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,051 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,051 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,051 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,054 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([268] L57-2-->L57-3: Formula: (= v_thread3Thread1of1ForFork0_~i~2_7 |v_thread3Thread1of1ForFork0_#t~post3_1|) InVars {thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7} OutVars{thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_7, thread3Thread1of1ForFork0_#t~post3=|v_thread3Thread1of1ForFork0_#t~post3_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~post3][531], [60#L74-4true, 4723#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 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4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0))), Black: 3686#(or (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (and (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ (* (div thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) ~a~0 (* (div ~b~0 4294967296) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0))), Black: 159#(or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))), Black: 155#true, Black: 4198#(and (< 0 (mod ~a~0 4294967296)) (not (< 1 (mod ~a~0 4294967296))) (= thread1Thread1of1ForFork1_~i~0 1) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 1654#(= thread1Thread1of1ForFork1_~i~0 0), Black: 4183#(and (or (<= (+ ~a~0 (* (div ~b~0 4294967296) 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0) (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3828#(and (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 4014#(or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))), Black: 4032#(forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (or (<= aux_mod_aux_mod_~a~0_21_32 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* aux_mod_aux_mod_~a~0_21_32 4294967295)) 4294967296) 4294967296) (* 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4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)) (or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))) (= thread2Thread1of1ForFork2_~i~1 0)), 1128#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), Black: 146#(and (<= (+ (* 4294967296 (div thread2Thread1of1ForFork2_~i~1 4294967296)) ~b~0 ~a~0) (+ (* (div ~a~0 4294967296) 4294967296) (* (div ~b~0 4294967296) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 144#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 142#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)), 1652#true, 3651#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), 113#true, 3#L50true, 1424#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 17#L41-4true]) [2022-11-02 20:41:01,055 INFO L383 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-11-02 20:41:01,056 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,056 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,056 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:01,056 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:41:03,595 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([258] L49-2-->L49-3: Formula: (= v_thread2Thread1of1ForFork2_~i~1_7 |v_thread2Thread1of1ForFork2_#t~post2_1|) InVars {thread2Thread1of1ForFork2_~i~1=v_thread2Thread1of1ForFork2_~i~1_7} OutVars{thread2Thread1of1ForFork2_~i~1=v_thread2Thread1of1ForFork2_~i~1_7, thread2Thread1of1ForFork2_#t~post2=|v_thread2Thread1of1ForFork2_#t~post2_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#t~post2][91], [60#L74-4true, 30#L49-3true, 4723#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), 3681#true, 116#true, 40#L41-3true, Black: 3655#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3481#(< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0)), Black: 3477#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), 633#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), Black: 3668#(and (<= ~b~0 (* (div ~b~0 4294967296) 4294967296)) (= 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thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 3161#(and (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296)) (< (+ (* (div (* 4294967295 ~a~0) 4294967296) 4294967296) (mod thread2Thread1of1ForFork2_~i~1 4294967296)) (* 4294967295 ~a~0))), Black: 3005#(< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)), Black: 1142#(= thread1Thread1of1ForFork1_~i~0 0), Black: 1622#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (< 0 (mod ~b~0 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 1639#(and (<= (div (+ ~b~0 ~a~0) 4294967296) (div (+ (- 1) ~b~0 ~a~0) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 1620#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) (= thread1Thread1of1ForFork1_~i~0 0) (= thread2Thread1of1ForFork2_~i~1 0)), Black: 1635#(and (<= ~a~0 (* (div ~a~0 4294967296) 4294967296)) 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4196#(and (< (+ (mod thread2Thread1of1ForFork2_~i~1 4294967296) (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296)) (* 4294967295 ~a~0)) (= thread1Thread1of1ForFork1_~i~0 1) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 4189#(and (or (< (mod (+ thread1Thread1of1ForFork1_~i~0 1) 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))) (or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))) (forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (or (<= aux_mod_aux_mod_~a~0_21_32 (mod thread1Thread1of1ForFork1_~i~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* aux_mod_aux_mod_~a~0_21_32 4294967295)) 4294967296) 4294967296) (* aux_mod_aux_mod_~a~0_21_32 4294967295)) (< (mod (+ thread1Thread1of1ForFork1_~i~0 1) 4294967296) (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296))) (< (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296)) 0) (>= aux_mod_aux_mod_~a~0_21_32 4294967296)))), Black: 4215#(and (or (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)) (or (< (mod thread1Thread1of1ForFork1_~i~0 4294967296) (mod ~a~0 4294967296)) (< (* (div (+ (mod thread3Thread1of1ForFork0_~i~2 4294967296) (* 4294967295 ~a~0)) 4294967296) 4294967296) (* 4294967295 ~a~0))) (= thread2Thread1of1ForFork2_~i~1 0)), 1128#(and (or (<= (+ (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)) 1) (+ ~a~0 (* (div ~b~0 4294967296) 4294967296))) (<= (+ (div ~b~0 4294967296) (div ~a~0 4294967296) 1) (div (+ ~b~0 ~a~0) 4294967296))) (< (mod thread2Thread1of1ForFork2_~i~1 4294967296) (mod ~b~0 4294967296))), Black: 146#(and (<= (+ (* 4294967296 (div thread2Thread1of1ForFork2_~i~1 4294967296)) ~b~0 ~a~0) (+ (* (div ~a~0 4294967296) 4294967296) (* (div ~b~0 4294967296) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 134#(= thread3Thread1of1ForFork0_~i~2 0), Black: 144#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread2Thread1of1ForFork2_~i~1 0) (= thread3Thread1of1ForFork0_~i~2 0)), Black: 142#(and (<= (+ ~b~0 ~a~0) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296))) (= thread3Thread1of1ForFork0_~i~2 0)), 2665#(and (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)) (= thread2Thread1of1ForFork2_~i~1 0)), 3651#(and (or (<= (div (+ ~b~0 ~a~0) 4294967296) (+ (div ~b~0 4294967296) (div (+ (- 1) ~a~0) 4294967296))) (<= (+ ~a~0 (* (div ~b~0 4294967296) 4294967296) 1) (* 4294967296 (div (+ ~b~0 ~a~0) 4294967296)))) (< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))), 113#true, 1424#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296)), 35#L58true, 1935#(< (mod thread3Thread1of1ForFork0_~i~2 4294967296) (mod (+ ~b~0 ~a~0) 4294967296))]) [2022-11-02 20:41:03,595 INFO L383 tUnfolder$Statistics]: this new event has 63 ancestors and is not cut-off event [2022-11-02 20:41:03,596 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is not cut-off event [2022-11-02 20:41:03,596 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is not cut-off event [2022-11-02 20:41:03,596 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is not cut-off event