./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-8393723 [2022-11-18 20:53:06,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:53:06,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:53:06,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:53:06,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:53:06,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:53:06,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:53:06,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:53:06,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:53:06,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:53:06,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:53:06,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:53:06,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:53:06,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:53:06,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:53:06,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:53:06,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:53:06,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:53:06,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:53:06,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:53:06,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:53:06,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:53:06,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:53:06,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:53:06,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:53:06,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:53:06,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:53:06,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:53:06,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:53:06,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:53:06,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:53:06,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:53:06,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:53:06,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:53:06,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:53:06,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:53:06,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:53:06,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:53:06,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:53:06,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:53:06,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:53:06,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:53:06,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:53:06,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:53:06,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:53:06,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:53:07,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:53:07,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:53:07,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:53:07,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:53:07,001 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:53:07,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:53:07,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:53:07,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:53:07,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:53:07,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:53:07,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:53:07,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:53:07,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:53:07,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:53:07,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:53:07,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:53:07,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:53:07,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:53:07,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:53:07,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:53:07,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:07,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:53:07,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:53:07,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:53:07,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:53:07,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:53:07,007 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:53:07,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:53:07,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:53:07,007 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_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-18 20:53:07,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:53:07,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:53:07,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:53:07,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:53:07,349 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:53:07,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-18 20:53:07,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/data/908548a14/a810f71a59994d84956f6a641363e8fd/FLAG63c51a0ac [2022-11-18 20:53:08,107 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:53:08,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-18 20:53:08,118 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/data/908548a14/a810f71a59994d84956f6a641363e8fd/FLAG63c51a0ac [2022-11-18 20:53:08,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/data/908548a14/a810f71a59994d84956f6a641363e8fd [2022-11-18 20:53:08,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:53:08,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:53:08,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:08,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:53:08,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:53:08,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6867ffb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08, skipping insertion in model container [2022-11-18 20:53:08,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:53:08,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:53:08,728 WARN L234 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_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-18 20:53:08,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:08,747 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:53:08,780 WARN L234 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_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-18 20:53:08,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:08,799 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:53:08,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08 WrapperNode [2022-11-18 20:53:08,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:08,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:08,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:53:08,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:53:08,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,853 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 289 [2022-11-18 20:53:08,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:08,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:53:08,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:53:08,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:53:08,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,890 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:53:08,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:53:08,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:53:08,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:53:08,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (1/1) ... [2022-11-18 20:53:08,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:08,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:08,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:53:08,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:53:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:53:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:53:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:53:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:53:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:53:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:53:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:53:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:53:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:53:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:53:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:53:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:53:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:53:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:53:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:53:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-18 20:53:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-18 20:53:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:53:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:53:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:53:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:53:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:53:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:53:09,008 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:53:09,174 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:53:09,176 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:53:09,964 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:53:10,250 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:53:10,251 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:53:10,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:10 BoogieIcfgContainer [2022-11-18 20:53:10,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:53:10,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:53:10,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:53:10,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:53:10,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:53:08" (1/3) ... [2022-11-18 20:53:10,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6404b183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:10, skipping insertion in model container [2022-11-18 20:53:10,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:08" (2/3) ... [2022-11-18 20:53:10,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6404b183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:10, skipping insertion in model container [2022-11-18 20:53:10,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:10" (3/3) ... [2022-11-18 20:53:10,266 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-18 20:53:10,275 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:53:10,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:53:10,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:53:10,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:53:10,505 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-18 20:53:10,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 260 transitions, 592 flow [2022-11-18 20:53:10,696 INFO L130 PetriNetUnfolder]: 18/232 cut-off events. [2022-11-18 20:53:10,696 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:53:10,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 232 events. 18/232 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 283 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 200. Up to 3 conditions per place. [2022-11-18 20:53:10,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 260 transitions, 592 flow [2022-11-18 20:53:10,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 223 transitions, 494 flow [2022-11-18 20:53:10,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:53:10,734 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;@239ca593, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:53:10,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-18 20:53:10,790 INFO L130 PetriNetUnfolder]: 18/222 cut-off events. [2022-11-18 20:53:10,790 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 20:53:10,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:10,791 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:10,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:10,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:10,797 INFO L85 PathProgramCache]: Analyzing trace with hash -228046651, now seen corresponding path program 1 times [2022-11-18 20:53:10,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:10,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101804726] [2022-11-18 20:53:10,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:10,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:11,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:11,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101804726] [2022-11-18 20:53:11,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101804726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:11,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:11,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:11,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913809296] [2022-11-18 20:53:11,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:11,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:53:11,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:53:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:53:11,317 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 264 [2022-11-18 20:53:11,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 223 transitions, 494 flow. Second operand has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 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) [2022-11-18 20:53:11,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:11,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 264 [2022-11-18 20:53:11,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:12,125 INFO L130 PetriNetUnfolder]: 1084/2340 cut-off events. [2022-11-18 20:53:12,125 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2022-11-18 20:53:12,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4457 conditions, 2340 events. 1084/2340 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13109 event pairs, 627 based on Foata normal form. 309/2437 useless extension candidates. Maximal degree in co-relation 4157. Up to 1445 conditions per place. [2022-11-18 20:53:12,158 INFO L137 encePairwiseOnDemand]: 255/264 looper letters, 30 selfloop transitions, 0 changer transitions 4/214 dead transitions. [2022-11-18 20:53:12,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 214 transitions, 536 flow [2022-11-18 20:53:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:53:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:53:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 471 transitions. [2022-11-18 20:53:12,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8920454545454546 [2022-11-18 20:53:12,184 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 471 transitions. [2022-11-18 20:53:12,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 471 transitions. [2022-11-18 20:53:12,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:12,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 471 transitions. [2022-11-18 20:53:12,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 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) [2022-11-18 20:53:12,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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) [2022-11-18 20:53:12,204 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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) [2022-11-18 20:53:12,206 INFO L175 Difference]: Start difference. First operand has 224 places, 223 transitions, 494 flow. Second operand 2 states and 471 transitions. [2022-11-18 20:53:12,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 214 transitions, 536 flow [2022-11-18 20:53:12,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 214 transitions, 504 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-18 20:53:12,220 INFO L231 Difference]: Finished difference. Result has 213 places, 210 transitions, 436 flow [2022-11-18 20:53:12,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=436, PETRI_PLACES=213, PETRI_TRANSITIONS=210} [2022-11-18 20:53:12,229 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -11 predicate places. [2022-11-18 20:53:12,229 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 210 transitions, 436 flow [2022-11-18 20:53:12,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 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) [2022-11-18 20:53:12,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:12,230 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:12,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:53:12,231 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:12,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:12,232 INFO L85 PathProgramCache]: Analyzing trace with hash -879713951, now seen corresponding path program 1 times [2022-11-18 20:53:12,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:12,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283442691] [2022-11-18 20:53:12,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:13,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:13,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283442691] [2022-11-18 20:53:13,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283442691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:13,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:13,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:53:13,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486578587] [2022-11-18 20:53:13,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:13,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:13,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:13,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:13,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:13,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 264 [2022-11-18 20:53:13,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 210 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-18 20:53:13,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:13,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 264 [2022-11-18 20:53:13,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:14,905 INFO L130 PetriNetUnfolder]: 3024/6404 cut-off events. [2022-11-18 20:53:14,906 INFO L131 PetriNetUnfolder]: For 486/486 co-relation queries the response was YES. [2022-11-18 20:53:14,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 6404 events. 3024/6404 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 47623 event pairs, 1153 based on Foata normal form. 1/5769 useless extension candidates. Maximal degree in co-relation 10859. Up to 1683 conditions per place. [2022-11-18 20:53:14,977 INFO L137 encePairwiseOnDemand]: 253/264 looper letters, 95 selfloop transitions, 10 changer transitions 4/269 dead transitions. [2022-11-18 20:53:14,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 269 transitions, 799 flow [2022-11-18 20:53:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:53:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:53:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2022-11-18 20:53:14,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7967171717171717 [2022-11-18 20:53:14,981 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2022-11-18 20:53:14,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2022-11-18 20:53:14,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:14,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2022-11-18 20:53:14,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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) [2022-11-18 20:53:14,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-18 20:53:14,993 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-18 20:53:14,993 INFO L175 Difference]: Start difference. First operand has 213 places, 210 transitions, 436 flow. Second operand 6 states and 1262 transitions. [2022-11-18 20:53:14,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 269 transitions, 799 flow [2022-11-18 20:53:14,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 269 transitions, 799 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:53:15,005 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 499 flow [2022-11-18 20:53:15,006 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=499, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2022-11-18 20:53:15,007 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -6 predicate places. [2022-11-18 20:53:15,007 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 499 flow [2022-11-18 20:53:15,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-18 20:53:15,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:15,008 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:15,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:53:15,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:15,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:15,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1376344111, now seen corresponding path program 2 times [2022-11-18 20:53:15,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:15,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80415122] [2022-11-18 20:53:15,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:15,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:15,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:15,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80415122] [2022-11-18 20:53:15,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80415122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:15,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:15,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:53:15,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740781297] [2022-11-18 20:53:15,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:15,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:53:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:53:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:53:15,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 264 [2022-11-18 20:53:15,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-18 20:53:15,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:15,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 264 [2022-11-18 20:53:15,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:18,289 INFO L130 PetriNetUnfolder]: 4929/10331 cut-off events. [2022-11-18 20:53:18,290 INFO L131 PetriNetUnfolder]: For 2189/2189 co-relation queries the response was YES. [2022-11-18 20:53:18,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19625 conditions, 10331 events. 4929/10331 cut-off events. For 2189/2189 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 85348 event pairs, 1899 based on Foata normal form. 1/9262 useless extension candidates. Maximal degree in co-relation 19617. Up to 3014 conditions per place. [2022-11-18 20:53:18,421 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 99 selfloop transitions, 14 changer transitions 4/277 dead transitions. [2022-11-18 20:53:18,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 277 transitions, 912 flow [2022-11-18 20:53:18,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:53:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:53:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1263 transitions. [2022-11-18 20:53:18,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7973484848484849 [2022-11-18 20:53:18,426 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1263 transitions. [2022-11-18 20:53:18,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1263 transitions. [2022-11-18 20:53:18,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:18,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1263 transitions. [2022-11-18 20:53:18,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.5) internal successors, (1263), 6 states have internal predecessors, (1263), 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) [2022-11-18 20:53:18,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-18 20:53:18,437 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-18 20:53:18,437 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 499 flow. Second operand 6 states and 1263 transitions. [2022-11-18 20:53:18,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 277 transitions, 912 flow [2022-11-18 20:53:18,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 277 transitions, 902 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:18,447 INFO L231 Difference]: Finished difference. Result has 223 places, 224 transitions, 588 flow [2022-11-18 20:53:18,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=588, PETRI_PLACES=223, PETRI_TRANSITIONS=224} [2022-11-18 20:53:18,449 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -1 predicate places. [2022-11-18 20:53:18,449 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 224 transitions, 588 flow [2022-11-18 20:53:18,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-18 20:53:18,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:18,451 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:18,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:53:18,451 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:18,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2126041498, now seen corresponding path program 1 times [2022-11-18 20:53:18,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:18,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945133698] [2022-11-18 20:53:18,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:18,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:19,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:19,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945133698] [2022-11-18 20:53:19,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945133698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:19,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:19,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:53:19,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890206420] [2022-11-18 20:53:19,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:19,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:53:19,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:53:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:53:19,115 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 264 [2022-11-18 20:53:19,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 224 transitions, 588 flow. Second operand has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-18 20:53:19,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:19,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 264 [2022-11-18 20:53:19,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:22,175 INFO L130 PetriNetUnfolder]: 6200/14218 cut-off events. [2022-11-18 20:53:22,175 INFO L131 PetriNetUnfolder]: For 6253/6253 co-relation queries the response was YES. [2022-11-18 20:53:22,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28095 conditions, 14218 events. 6200/14218 cut-off events. For 6253/6253 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 130027 event pairs, 1544 based on Foata normal form. 573/13424 useless extension candidates. Maximal degree in co-relation 28084. Up to 3830 conditions per place. [2022-11-18 20:53:22,366 INFO L137 encePairwiseOnDemand]: 254/264 looper letters, 136 selfloop transitions, 9 changer transitions 0/308 dead transitions. [2022-11-18 20:53:22,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 308 transitions, 1227 flow [2022-11-18 20:53:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:53:22,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 20:53:22,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1707 transitions. [2022-11-18 20:53:22,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8082386363636364 [2022-11-18 20:53:22,373 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1707 transitions. [2022-11-18 20:53:22,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1707 transitions. [2022-11-18 20:53:22,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:22,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1707 transitions. [2022-11-18 20:53:22,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 213.375) internal successors, (1707), 8 states have internal predecessors, (1707), 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) [2022-11-18 20:53:22,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-18 20:53:22,387 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-18 20:53:22,387 INFO L175 Difference]: Start difference. First operand has 223 places, 224 transitions, 588 flow. Second operand 8 states and 1707 transitions. [2022-11-18 20:53:22,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 308 transitions, 1227 flow [2022-11-18 20:53:22,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 308 transitions, 1215 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:22,405 INFO L231 Difference]: Finished difference. Result has 231 places, 230 transitions, 657 flow [2022-11-18 20:53:22,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=657, PETRI_PLACES=231, PETRI_TRANSITIONS=230} [2022-11-18 20:53:22,407 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 7 predicate places. [2022-11-18 20:53:22,407 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 230 transitions, 657 flow [2022-11-18 20:53:22,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-18 20:53:22,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:22,409 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:22,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:53:22,409 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:22,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1388435538, now seen corresponding path program 1 times [2022-11-18 20:53:22,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:22,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637836613] [2022-11-18 20:53:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:22,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637836613] [2022-11-18 20:53:22,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637836613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:22,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:22,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:53:22,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176031814] [2022-11-18 20:53:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:22,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:53:22,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:53:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:53:22,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 264 [2022-11-18 20:53:22,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 657 flow. Second operand has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-18 20:53:22,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:22,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 264 [2022-11-18 20:53:22,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:25,446 INFO L130 PetriNetUnfolder]: 4877/12045 cut-off events. [2022-11-18 20:53:25,447 INFO L131 PetriNetUnfolder]: For 8228/8228 co-relation queries the response was YES. [2022-11-18 20:53:25,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25455 conditions, 12045 events. 4877/12045 cut-off events. For 8228/8228 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 112235 event pairs, 1256 based on Foata normal form. 408/11194 useless extension candidates. Maximal degree in co-relation 25440. Up to 3505 conditions per place. [2022-11-18 20:53:25,586 INFO L137 encePairwiseOnDemand]: 254/264 looper letters, 95 selfloop transitions, 6 changer transitions 34/298 dead transitions. [2022-11-18 20:53:25,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 298 transitions, 1222 flow [2022-11-18 20:53:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:53:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 20:53:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1699 transitions. [2022-11-18 20:53:25,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8044507575757576 [2022-11-18 20:53:25,593 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1699 transitions. [2022-11-18 20:53:25,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1699 transitions. [2022-11-18 20:53:25,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:25,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1699 transitions. [2022-11-18 20:53:25,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 212.375) internal successors, (1699), 8 states have internal predecessors, (1699), 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) [2022-11-18 20:53:25,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-18 20:53:25,606 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-18 20:53:25,606 INFO L175 Difference]: Start difference. First operand has 231 places, 230 transitions, 657 flow. Second operand 8 states and 1699 transitions. [2022-11-18 20:53:25,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 298 transitions, 1222 flow [2022-11-18 20:53:25,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 298 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:53:25,622 INFO L231 Difference]: Finished difference. Result has 240 places, 229 transitions, 663 flow [2022-11-18 20:53:25,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=663, PETRI_PLACES=240, PETRI_TRANSITIONS=229} [2022-11-18 20:53:25,626 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 16 predicate places. [2022-11-18 20:53:25,626 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 229 transitions, 663 flow [2022-11-18 20:53:25,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-18 20:53:25,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:25,628 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:25,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:53:25,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:25,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:25,630 INFO L85 PathProgramCache]: Analyzing trace with hash 506259595, now seen corresponding path program 1 times [2022-11-18 20:53:25,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:25,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114558576] [2022-11-18 20:53:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:25,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:26,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:26,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114558576] [2022-11-18 20:53:26,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114558576] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:26,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128428198] [2022-11-18 20:53:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:26,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:26,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:26,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:26,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:53:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:26,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:53:26,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:26,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:27,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128428198] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:27,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:53:27,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-18 20:53:27,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680780455] [2022-11-18 20:53:27,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:27,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:53:27,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:27,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:53:27,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:53:27,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-18 20:53:27,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 229 transitions, 663 flow. Second operand has 19 states, 19 states have (on average 201.47368421052633) internal successors, (3828), 19 states have internal predecessors, (3828), 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) [2022-11-18 20:53:27,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:27,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-18 20:53:27,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:30,377 INFO L130 PetriNetUnfolder]: 5825/13561 cut-off events. [2022-11-18 20:53:30,377 INFO L131 PetriNetUnfolder]: For 13694/13694 co-relation queries the response was YES. [2022-11-18 20:53:30,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32409 conditions, 13561 events. 5825/13561 cut-off events. For 13694/13694 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 125073 event pairs, 1750 based on Foata normal form. 156/12386 useless extension candidates. Maximal degree in co-relation 32390. Up to 3665 conditions per place. [2022-11-18 20:53:30,535 INFO L137 encePairwiseOnDemand]: 248/264 looper letters, 144 selfloop transitions, 17 changer transitions 0/323 dead transitions. [2022-11-18 20:53:30,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 323 transitions, 1438 flow [2022-11-18 20:53:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:53:30,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 20:53:30,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2891 transitions. [2022-11-18 20:53:30,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7821969696969697 [2022-11-18 20:53:30,545 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2891 transitions. [2022-11-18 20:53:30,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2891 transitions. [2022-11-18 20:53:30,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:30,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2891 transitions. [2022-11-18 20:53:30,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.5) internal successors, (2891), 14 states have internal predecessors, (2891), 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) [2022-11-18 20:53:30,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 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) [2022-11-18 20:53:30,562 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 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) [2022-11-18 20:53:30,563 INFO L175 Difference]: Start difference. First operand has 240 places, 229 transitions, 663 flow. Second operand 14 states and 2891 transitions. [2022-11-18 20:53:30,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 323 transitions, 1438 flow [2022-11-18 20:53:30,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 323 transitions, 1393 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-18 20:53:30,583 INFO L231 Difference]: Finished difference. Result has 248 places, 238 transitions, 757 flow [2022-11-18 20:53:30,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=757, PETRI_PLACES=248, PETRI_TRANSITIONS=238} [2022-11-18 20:53:30,586 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 24 predicate places. [2022-11-18 20:53:30,587 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 238 transitions, 757 flow [2022-11-18 20:53:30,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 201.47368421052633) internal successors, (3828), 19 states have internal predecessors, (3828), 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) [2022-11-18 20:53:30,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:30,592 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:30,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:53:30,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:53:30,798 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:30,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:30,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1061539039, now seen corresponding path program 1 times [2022-11-18 20:53:30,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:30,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099033707] [2022-11-18 20:53:30,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:30,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:31,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:31,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099033707] [2022-11-18 20:53:31,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099033707] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:31,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664524891] [2022-11-18 20:53:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:31,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:31,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:31,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:31,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:53:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:31,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:53:31,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:32,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:32,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664524891] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:53:32,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:53:32,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:53:32,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941105059] [2022-11-18 20:53:32,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:53:32,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:53:32,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:32,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:53:32,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:53:32,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-18 20:53:32,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 238 transitions, 757 flow. Second operand has 18 states, 18 states have (on average 201.72222222222223) internal successors, (3631), 18 states have internal predecessors, (3631), 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) [2022-11-18 20:53:32,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:32,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-18 20:53:32,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:35,037 INFO L130 PetriNetUnfolder]: 4877/11611 cut-off events. [2022-11-18 20:53:35,037 INFO L131 PetriNetUnfolder]: For 11880/11880 co-relation queries the response was YES. [2022-11-18 20:53:35,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27889 conditions, 11611 events. 4877/11611 cut-off events. For 11880/11880 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 104826 event pairs, 1230 based on Foata normal form. 69/10590 useless extension candidates. Maximal degree in co-relation 27868. Up to 3505 conditions per place. [2022-11-18 20:53:35,152 INFO L137 encePairwiseOnDemand]: 249/264 looper letters, 94 selfloop transitions, 13 changer transitions 40/309 dead transitions. [2022-11-18 20:53:35,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 309 transitions, 1386 flow [2022-11-18 20:53:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:53:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:53:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2685 transitions. [2022-11-18 20:53:35,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7823426573426573 [2022-11-18 20:53:35,159 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2685 transitions. [2022-11-18 20:53:35,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2685 transitions. [2022-11-18 20:53:35,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:35,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2685 transitions. [2022-11-18 20:53:35,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 206.53846153846155) internal successors, (2685), 13 states have internal predecessors, (2685), 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) [2022-11-18 20:53:35,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 264.0) internal successors, (3696), 14 states have internal predecessors, (3696), 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) [2022-11-18 20:53:35,175 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 264.0) internal successors, (3696), 14 states have internal predecessors, (3696), 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) [2022-11-18 20:53:35,176 INFO L175 Difference]: Start difference. First operand has 248 places, 238 transitions, 757 flow. Second operand 13 states and 2685 transitions. [2022-11-18 20:53:35,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 309 transitions, 1386 flow [2022-11-18 20:53:35,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 309 transitions, 1369 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-18 20:53:35,189 INFO L231 Difference]: Finished difference. Result has 257 places, 233 transitions, 728 flow [2022-11-18 20:53:35,190 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=728, PETRI_PLACES=257, PETRI_TRANSITIONS=233} [2022-11-18 20:53:35,190 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 33 predicate places. [2022-11-18 20:53:35,190 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 233 transitions, 728 flow [2022-11-18 20:53:35,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 201.72222222222223) internal successors, (3631), 18 states have internal predecessors, (3631), 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) [2022-11-18 20:53:35,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:35,193 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:35,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:35,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:35,401 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:35,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:35,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1580646018, now seen corresponding path program 2 times [2022-11-18 20:53:35,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:35,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750033793] [2022-11-18 20:53:35,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:35,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:35,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:35,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750033793] [2022-11-18 20:53:35,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750033793] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:35,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861947938] [2022-11-18 20:53:35,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:53:35,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:35,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:35,912 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:35,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:53:36,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:53:36,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:53:36,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:53:36,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:36,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:36,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861947938] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:36,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:53:36,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-11-18 20:53:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168044258] [2022-11-18 20:53:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:36,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:53:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:36,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:53:36,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:53:36,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-18 20:53:36,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 233 transitions, 728 flow. Second operand has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-18 20:53:36,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:36,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-18 20:53:36,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:38,693 INFO L130 PetriNetUnfolder]: 3360/7807 cut-off events. [2022-11-18 20:53:38,693 INFO L131 PetriNetUnfolder]: For 10762/10762 co-relation queries the response was YES. [2022-11-18 20:53:38,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20209 conditions, 7807 events. 3360/7807 cut-off events. For 10762/10762 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 64718 event pairs, 1268 based on Foata normal form. 162/7253 useless extension candidates. Maximal degree in co-relation 20186. Up to 4107 conditions per place. [2022-11-18 20:53:38,788 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 85 selfloop transitions, 11 changer transitions 0/258 dead transitions. [2022-11-18 20:53:38,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 258 transitions, 1051 flow [2022-11-18 20:53:38,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:53:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:53:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2053 transitions. [2022-11-18 20:53:38,794 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776515151515152 [2022-11-18 20:53:38,794 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2053 transitions. [2022-11-18 20:53:38,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2053 transitions. [2022-11-18 20:53:38,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:38,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2053 transitions. [2022-11-18 20:53:38,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.3) internal successors, (2053), 10 states have internal predecessors, (2053), 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) [2022-11-18 20:53:38,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-18 20:53:38,807 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-18 20:53:38,807 INFO L175 Difference]: Start difference. First operand has 257 places, 233 transitions, 728 flow. Second operand 10 states and 2053 transitions. [2022-11-18 20:53:38,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 258 transitions, 1051 flow [2022-11-18 20:53:38,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 258 transitions, 992 flow, removed 15 selfloop flow, removed 14 redundant places. [2022-11-18 20:53:38,819 INFO L231 Difference]: Finished difference. Result has 250 places, 236 transitions, 731 flow [2022-11-18 20:53:38,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=731, PETRI_PLACES=250, PETRI_TRANSITIONS=236} [2022-11-18 20:53:38,820 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 26 predicate places. [2022-11-18 20:53:38,820 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 236 transitions, 731 flow [2022-11-18 20:53:38,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-18 20:53:38,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:38,822 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:38,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:39,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-18 20:53:39,029 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:39,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1555034670, now seen corresponding path program 2 times [2022-11-18 20:53:39,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:39,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617921766] [2022-11-18 20:53:39,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:39,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:39,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:39,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617921766] [2022-11-18 20:53:39,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617921766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:39,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801332037] [2022-11-18 20:53:39,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:53:39,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:39,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:39,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:39,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:53:39,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:53:39,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:53:39,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:53:39,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:40,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:53:40,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801332037] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:40,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:53:40,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-11-18 20:53:40,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324978650] [2022-11-18 20:53:40,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:40,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:53:40,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:53:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:53:40,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:53:40,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-18 20:53:40,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 236 transitions, 731 flow. Second operand has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-18 20:53:40,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:53:40,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-18 20:53:40,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:53:41,756 INFO L130 PetriNetUnfolder]: 2541/5519 cut-off events. [2022-11-18 20:53:41,756 INFO L131 PetriNetUnfolder]: For 6558/6558 co-relation queries the response was YES. [2022-11-18 20:53:41,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15114 conditions, 5519 events. 2541/5519 cut-off events. For 6558/6558 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 40001 event pairs, 884 based on Foata normal form. 114/5178 useless extension candidates. Maximal degree in co-relation 15093. Up to 3108 conditions per place. [2022-11-18 20:53:41,826 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 89 selfloop transitions, 11 changer transitions 0/262 dead transitions. [2022-11-18 20:53:41,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 262 transitions, 1065 flow [2022-11-18 20:53:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:53:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:53:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2053 transitions. [2022-11-18 20:53:41,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776515151515152 [2022-11-18 20:53:41,833 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2053 transitions. [2022-11-18 20:53:41,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2053 transitions. [2022-11-18 20:53:41,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:53:41,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2053 transitions. [2022-11-18 20:53:41,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.3) internal successors, (2053), 10 states have internal predecessors, (2053), 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) [2022-11-18 20:53:41,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-18 20:53:41,845 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-18 20:53:41,845 INFO L175 Difference]: Start difference. First operand has 250 places, 236 transitions, 731 flow. Second operand 10 states and 2053 transitions. [2022-11-18 20:53:41,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 262 transitions, 1065 flow [2022-11-18 20:53:41,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 262 transitions, 1032 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-18 20:53:41,858 INFO L231 Difference]: Finished difference. Result has 253 places, 238 transitions, 747 flow [2022-11-18 20:53:41,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=747, PETRI_PLACES=253, PETRI_TRANSITIONS=238} [2022-11-18 20:53:41,859 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 29 predicate places. [2022-11-18 20:53:41,859 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 238 transitions, 747 flow [2022-11-18 20:53:41,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-18 20:53:41,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:53:41,861 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:41,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-18 20:53:42,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:53:42,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-18 20:53:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:42,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1618733321, now seen corresponding path program 1 times [2022-11-18 20:53:42,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:53:42,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306331497] [2022-11-18 20:53:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:42,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:53:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 20:53:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:53:44,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306331497] [2022-11-18 20:53:44,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306331497] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:53:44,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119597287] [2022-11-18 20:53:44,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:44,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:53:44,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:44,875 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:53:44,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddf2aaf7-3932-42cc-ab6c-96e691897b4d/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:53:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:45,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-18 20:53:45,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:45,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:53:46,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:53:46,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:53:46,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:53:46,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:53:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:53:47,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:53:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:53:47,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-18 20:53:47,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:53:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:47,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:53:47,827 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (and (forall ((v_ArrVal_490 (Array Int Int))) (<= c_~s_2~0 (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_490) c_~X_0~0.base) .cse0)))) (forall ((v_ArrVal_490 (Array Int Int))) (< (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_490) c_~X_0~0.base) .cse0)) (+ 1 c_~s_2~0))))) is different from false [2022-11-18 20:53:48,281 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))))))) is different from false [2022-11-18 20:53:49,841 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))))) is different from false [2022-11-18 20:53:52,351 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ c_~t_4~0 1 c_~s_2~0))))))))) is different from false [2022-11-18 20:53:54,402 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~X_0~0.offset 4)) (.cse0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= (+ .cse0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1) (+ .cse0 1 c_~s_2~0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))))) is different from false [2022-11-18 20:53:54,700 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) (.cse1 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (< (select (select (store (store .cse0 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1) (+ (select (select .cse0 c_~X_0~0.base) .cse2) 1 c_~s_2~0)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (<= (+ (select (select .cse3 c_~X_0~0.base) .cse2) c_~s_2~0) (select (select (store (store .cse3 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))))) is different from false [2022-11-18 20:53:54,955 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~X_0~0.offset 4)) (.cse1 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0)))) (and (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_487) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (<= (+ (select (select .cse0 c_~X_0~0.base) .cse1) c_~s_2~0) (select (select (store (store .cse0 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse2)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_487) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (< (select (select (store (store .cse3 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse2) (+ (select (select .cse3 c_~X_0~0.base) .cse1) 1 c_~s_2~0)))))))))) is different from false [2022-11-18 20:55:06,184 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:06,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 58 [2022-11-18 20:55:06,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 764755836918 treesize of output 747039096822