./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 088f6c2624c9ef470b1e5d5938ff0e2c2948b61c2ac98da6e426747245a7aaad
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:13:15,666 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:13:15,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:13:15,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:13:15,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:13:15,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:13:15,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:13:15,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:13:15,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:13:15,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:13:15,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:13:15,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:13:15,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:13:15,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:13:15,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:13:15,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:13:15,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:13:15,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:13:15,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:13:15,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:13:15,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:13:15,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:13:15,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:13:15,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:13:15,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:13:15,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:13:15,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:13:15,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:13:15,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:13:15,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:13:15,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:13:15,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:13:15,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:13:15,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:13:15,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:13:15,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:13:15,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:13:15,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:13:15,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:13:15,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:13:15,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:13:15,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:13:15,888 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:13:15,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:13:15,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:13:15,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:13:15,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:13:15,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:13:15,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:13:15,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:13:15,892 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:13:15,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:13:15,892 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:13:15,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:13:15,893 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:13:15,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:13:15,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:13:15,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:13:15,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:13:15,902 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:13:15,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:13:15,903 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:13:15,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:13:15,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:13:15,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:13:15,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:13:15,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:13:15,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:13:15,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:13:15,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:13:15,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:13:15,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:13:15,908 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:13:15,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:13:15,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:13:15,909 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_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 088f6c2624c9ef470b1e5d5938ff0e2c2948b61c2ac98da6e426747245a7aaad
[2022-11-02 20:13:16,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:13:16,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:13:16,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:13:16,321 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:13:16,322 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:13:16,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c
[2022-11-02 20:13:16,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/data/28924a6b9/271f36be069c4f9aa552c8c4bfa737af/FLAGb9447456c
[2022-11-02 20:13:17,157 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:13:17,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c
[2022-11-02 20:13:17,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/data/28924a6b9/271f36be069c4f9aa552c8c4bfa737af/FLAGb9447456c
[2022-11-02 20:13:17,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/data/28924a6b9/271f36be069c4f9aa552c8c4bfa737af
[2022-11-02 20:13:17,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:13:17,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:13:17,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:13:17,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:13:17,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:13:17,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:13:17" (1/1) ...
[2022-11-02 20:13:17,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6734c054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:17, skipping insertion in model container
[2022-11-02 20:13:17,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:13:17" (1/1) ...
[2022-11-02 20:13:17,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:13:17,474 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:13:17,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c[19262,19275]
[2022-11-02 20:13:18,001 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:13:18,015 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:13:18,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/sv-benchmarks/c/weaver/chl-poker-hand-subst.wvr.c[19262,19275]
[2022-11-02 20:13:18,176 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:13:18,203 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:13:18,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18 WrapperNode
[2022-11-02 20:13:18,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:13:18,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:13:18,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:13:18,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:13:18,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,426 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2362
[2022-11-02 20:13:18,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:13:18,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:13:18,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:13:18,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:13:18,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,634 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:13:18,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:13:18,683 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:13:18,684 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:13:18,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (1/1) ...
[2022-11-02 20:13:18,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:13:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:13:18,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:13:18,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:13:18,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:13:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 20:13:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-11-02 20:13:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-11-02 20:13:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-11-02 20:13:18,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-11-02 20:13:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-11-02 20:13:18,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-11-02 20:13:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2022-11-02 20:13:18,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2022-11-02 20:13:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:13:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-11-02 20:13:18,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-11-02 20:13:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-02 20:13:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:13:18,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:13:18,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 20:13:18,792 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-11-02 20:13:19,218 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:13:19,237 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:13:21,938 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:13:25,545 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:13:25,545 INFO L300 CfgBuilder]: Removed 18 assume(true) statements.
[2022-11-02 20:13:25,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:13:25 BoogieIcfgContainer
[2022-11-02 20:13:25,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:13:25,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:13:25,553 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:13:25,557 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:13:25,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:13:17" (1/3) ...
[2022-11-02 20:13:25,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef62057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:13:25, skipping insertion in model container
[2022-11-02 20:13:25,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:13:18" (2/3) ...
[2022-11-02 20:13:25,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef62057 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:13:25, skipping insertion in model container
[2022-11-02 20:13:25,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:13:25" (3/3) ...
[2022-11-02 20:13:25,561 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c
[2022-11-02 20:13:25,575 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-11-02 20:13:25,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:13:25,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:13:25,588 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-11-02 20:13:26,251 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-11-02 20:13:26,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 671 places, 740 transitions, 1504 flow
[2022-11-02 20:13:26,818 INFO L130 PetriNetUnfolder]: 79/737 cut-off events.
[2022-11-02 20:13:26,818 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2022-11-02 20:13:26,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 737 events. 79/737 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 773 event pairs, 0 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 662. Up to 7 conditions per place.
[2022-11-02 20:13:26,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 671 places, 740 transitions, 1504 flow
[2022-11-02 20:13:26,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 657 places, 726 transitions, 1470 flow
[2022-11-02 20:13:26,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:13:26,883 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;@7a2a64e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:13:26,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-11-02 20:13:27,218 INFO L130 PetriNetUnfolder]: 79/725 cut-off events.
[2022-11-02 20:13:27,219 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2022-11-02 20:13:27,219 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:27,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:27,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:27,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1432240464, now seen corresponding path program 1 times
[2022-11-02 20:13:27,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:27,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646021289]
[2022-11-02 20:13:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:13:28,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:28,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646021289]
[2022-11-02 20:13:28,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646021289] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:13:28,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:13:28,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:13:28,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351964909]
[2022-11-02 20:13:28,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:13:28,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:13:28,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:13:28,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:13:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:13:28,157 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 657 out of 740
[2022-11-02 20:13:28,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 726 transitions, 1470 flow. Second operand has 2 states, 2 states have (on average 666.5) internal successors, (1333), 2 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:28,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:13:28,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 657 of 740
[2022-11-02 20:13:28,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:13:30,142 INFO L130 PetriNetUnfolder]: 675/1826 cut-off events.
[2022-11-02 20:13:30,143 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES.
[2022-11-02 20:13:30,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2662 conditions, 1826 events. 675/1826 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6941 event pairs, 135 based on Foata normal form. 169/1747 useless extension candidates. Maximal degree in co-relation 1817. Up to 769 conditions per place.
[2022-11-02 20:13:30,171 INFO L137 encePairwiseOnDemand]: 697/740 looper letters, 39 selfloop transitions, 0 changer transitions 25/683 dead transitions.
[2022-11-02 20:13:30,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 683 transitions, 1462 flow
[2022-11-02 20:13:30,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:13:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2022-11-02 20:13:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1396 transitions.
[2022-11-02 20:13:30,207 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9432432432432433
[2022-11-02 20:13:30,208 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1396 transitions.
[2022-11-02 20:13:30,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1396 transitions.
[2022-11-02 20:13:30,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:13:30,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1396 transitions.
[2022-11-02 20:13:30,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 698.0) internal successors, (1396), 2 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:30,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 740.0) internal successors, (2220), 3 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:30,242 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 740.0) internal successors, (2220), 3 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:30,245 INFO L175 Difference]: Start difference. First operand has 657 places, 726 transitions, 1470 flow. Second operand 2 states and 1396 transitions.
[2022-11-02 20:13:30,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 683 transitions, 1462 flow
[2022-11-02 20:13:30,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 683 transitions, 1450 flow, removed 0 selfloop flow, removed 6 redundant places.
[2022-11-02 20:13:30,277 INFO L231 Difference]: Finished difference. Result has 652 places, 658 transitions, 1322 flow
[2022-11-02 20:13:30,280 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=651, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1322, PETRI_PLACES=652, PETRI_TRANSITIONS=658}
[2022-11-02 20:13:30,290 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, -5 predicate places.
[2022-11-02 20:13:30,291 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 658 transitions, 1322 flow
[2022-11-02 20:13:30,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 666.5) internal successors, (1333), 2 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:30,292 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:30,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:30,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:13:30,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:30,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:30,295 INFO L85 PathProgramCache]: Analyzing trace with hash -618069868, now seen corresponding path program 1 times
[2022-11-02 20:13:30,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:30,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046994973]
[2022-11-02 20:13:30,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:30,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:13:31,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:31,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046994973]
[2022-11-02 20:13:31,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046994973] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:13:31,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:13:31,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:13:31,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849963847]
[2022-11-02 20:13:31,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:13:31,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:13:31,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:13:31,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:13:31,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:13:31,231 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 740
[2022-11-02 20:13:31,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 658 transitions, 1322 flow. Second operand has 5 states, 5 states have (on average 534.0) internal successors, (2670), 5 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:31,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:13:31,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 740
[2022-11-02 20:13:31,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:13:33,692 INFO L130 PetriNetUnfolder]: 675/1837 cut-off events.
[2022-11-02 20:13:33,693 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES.
[2022-11-02 20:13:33,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2797 conditions, 1837 events. 675/1837 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6886 event pairs, 135 based on Foata normal form. 0/1614 useless extension candidates. Maximal degree in co-relation 2794. Up to 833 conditions per place.
[2022-11-02 20:13:33,717 INFO L137 encePairwiseOnDemand]: 710/740 looper letters, 183 selfloop transitions, 24 changer transitions 0/682 dead transitions.
[2022-11-02 20:13:33,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 682 transitions, 1784 flow
[2022-11-02 20:13:33,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:13:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-11-02 20:13:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2778 transitions.
[2022-11-02 20:13:33,725 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7508108108108108
[2022-11-02 20:13:33,726 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2778 transitions.
[2022-11-02 20:13:33,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2778 transitions.
[2022-11-02 20:13:33,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:13:33,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2778 transitions.
[2022-11-02 20:13:33,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 555.6) internal successors, (2778), 5 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:33,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 740.0) internal successors, (4440), 6 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:33,750 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 740.0) internal successors, (4440), 6 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:33,750 INFO L175 Difference]: Start difference. First operand has 652 places, 658 transitions, 1322 flow. Second operand 5 states and 2778 transitions.
[2022-11-02 20:13:33,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 682 transitions, 1784 flow
[2022-11-02 20:13:33,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 682 transitions, 1784 flow, removed 0 selfloop flow, removed 0 redundant places.
[2022-11-02 20:13:33,768 INFO L231 Difference]: Finished difference. Result has 632 places, 664 transitions, 1418 flow
[2022-11-02 20:13:33,769 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1418, PETRI_PLACES=632, PETRI_TRANSITIONS=664}
[2022-11-02 20:13:33,770 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, -25 predicate places.
[2022-11-02 20:13:33,771 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 664 transitions, 1418 flow
[2022-11-02 20:13:33,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 534.0) internal successors, (2670), 5 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:33,774 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:33,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:33,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:13:33,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash -750912290, now seen corresponding path program 1 times
[2022-11-02 20:13:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:33,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385965905]
[2022-11-02 20:13:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:33,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-02 20:13:34,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:34,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385965905]
[2022-11-02 20:13:34,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385965905] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:13:34,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491455888]
[2022-11-02 20:13:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:34,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:34,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:13:34,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:13:34,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 20:13:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:35,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:13:35,698 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:13:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2022-11-02 20:13:35,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:13:35,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491455888] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:13:35,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:13:35,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2022-11-02 20:13:35,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125792504]
[2022-11-02 20:13:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:13:35,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:13:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:13:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:13:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2022-11-02 20:13:35,880 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 740
[2022-11-02 20:13:35,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 664 transitions, 1418 flow. Second operand has 5 states, 5 states have (on average 538.8) internal successors, (2694), 5 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:35,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:13:35,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 740
[2022-11-02 20:13:35,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:13:37,791 INFO L130 PetriNetUnfolder]: 675/1873 cut-off events.
[2022-11-02 20:13:37,791 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES.
[2022-11-02 20:13:37,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2901 conditions, 1873 events. 675/1873 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6827 event pairs, 135 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 2896. Up to 864 conditions per place.
[2022-11-02 20:13:37,813 INFO L137 encePairwiseOnDemand]: 708/740 looper letters, 187 selfloop transitions, 26 changer transitions 0/688 dead transitions.
[2022-11-02 20:13:37,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 688 transitions, 1892 flow
[2022-11-02 20:13:37,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 20:13:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2022-11-02 20:13:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3291 transitions.
[2022-11-02 20:13:37,822 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7412162162162163
[2022-11-02 20:13:37,822 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3291 transitions.
[2022-11-02 20:13:37,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3291 transitions.
[2022-11-02 20:13:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:13:37,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3291 transitions.
[2022-11-02 20:13:37,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 548.5) internal successors, (3291), 6 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:37,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 740.0) internal successors, (5180), 7 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:37,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 740.0) internal successors, (5180), 7 states have internal predecessors, (5180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:37,850 INFO L175 Difference]: Start difference. First operand has 632 places, 664 transitions, 1418 flow. Second operand 6 states and 3291 transitions.
[2022-11-02 20:13:37,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 688 transitions, 1892 flow
[2022-11-02 20:13:37,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 688 transitions, 1856 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-11-02 20:13:37,869 INFO L231 Difference]: Finished difference. Result has 635 places, 670 transitions, 1482 flow
[2022-11-02 20:13:37,871 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=635, PETRI_TRANSITIONS=670}
[2022-11-02 20:13:37,872 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, -22 predicate places.
[2022-11-02 20:13:37,872 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 670 transitions, 1482 flow
[2022-11-02 20:13:37,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 538.8) internal successors, (2694), 5 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:37,875 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:37,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:37,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:13:38,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:38,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash 390848480, now seen corresponding path program 1 times
[2022-11-02 20:13:38,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:38,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879394326]
[2022-11-02 20:13:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:38,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-11-02 20:13:38,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:38,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879394326]
[2022-11-02 20:13:38,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879394326] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:13:38,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607116022]
[2022-11-02 20:13:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:38,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:38,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:13:38,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:13:38,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 20:13:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:39,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-02 20:13:39,966 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:13:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-11-02 20:13:40,165 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:13:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2022-11-02 20:13:40,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607116022] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:13:40,380 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 20:13:40,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17
[2022-11-02 20:13:40,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128856695]
[2022-11-02 20:13:40,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:13:40,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2022-11-02 20:13:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:13:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2022-11-02 20:13:40,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272
[2022-11-02 20:13:40,397 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 740
[2022-11-02 20:13:40,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 670 transitions, 1482 flow. Second operand has 17 states, 17 states have (on average 516.8235294117648) internal successors, (8786), 17 states have internal predecessors, (8786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:40,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:13:40,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 740
[2022-11-02 20:13:40,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:13:43,360 INFO L130 PetriNetUnfolder]: 675/1981 cut-off events.
[2022-11-02 20:13:43,360 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES.
[2022-11-02 20:13:43,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3144 conditions, 1981 events. 675/1981 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6743 event pairs, 135 based on Foata normal form. 24/1794 useless extension candidates. Maximal degree in co-relation 3138. Up to 815 conditions per place.
[2022-11-02 20:13:43,385 INFO L137 encePairwiseOnDemand]: 643/740 looper letters, 194 selfloop transitions, 133 changer transitions 0/790 dead transitions.
[2022-11-02 20:13:43,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 790 transitions, 2400 flow
[2022-11-02 20:13:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-11-02 20:13:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2022-11-02 20:13:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 10872 transitions.
[2022-11-02 20:13:43,418 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6996138996138996
[2022-11-02 20:13:43,418 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 10872 transitions.
[2022-11-02 20:13:43,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 10872 transitions.
[2022-11-02 20:13:43,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:13:43,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 10872 transitions.
[2022-11-02 20:13:43,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 517.7142857142857) internal successors, (10872), 21 states have internal predecessors, (10872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:43,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 740.0) internal successors, (16280), 22 states have internal predecessors, (16280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:43,589 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 740.0) internal successors, (16280), 22 states have internal predecessors, (16280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:43,589 INFO L175 Difference]: Start difference. First operand has 635 places, 670 transitions, 1482 flow. Second operand 21 states and 10872 transitions.
[2022-11-02 20:13:43,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 790 transitions, 2400 flow
[2022-11-02 20:13:43,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 651 places, 790 transitions, 2360 flow, removed 0 selfloop flow, removed 4 redundant places.
[2022-11-02 20:13:43,624 INFO L231 Difference]: Finished difference. Result has 657 places, 742 transitions, 2115 flow
[2022-11-02 20:13:43,626 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=1442, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2115, PETRI_PLACES=657, PETRI_TRANSITIONS=742}
[2022-11-02 20:13:43,628 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 0 predicate places.
[2022-11-02 20:13:43,629 INFO L495 AbstractCegarLoop]: Abstraction has has 657 places, 742 transitions, 2115 flow
[2022-11-02 20:13:43,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 516.8235294117648) internal successors, (8786), 17 states have internal predecessors, (8786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:43,633 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:43,637 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:43,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:13:43,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:43,851 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:43,852 INFO L85 PathProgramCache]: Analyzing trace with hash 54267058, now seen corresponding path program 2 times
[2022-11-02 20:13:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:43,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785985185]
[2022-11-02 20:13:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:43,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2022-11-02 20:13:45,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:45,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785985185]
[2022-11-02 20:13:45,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785985185] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:13:45,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672559778]
[2022-11-02 20:13:45,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-02 20:13:45,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:45,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:13:45,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:13:45,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-02 20:13:46,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2022-11-02 20:13:46,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:13:46,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 41 conjunts are in the unsatisfiable core
[2022-11-02 20:13:46,632 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:13:46,997 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-11-02 20:13:46,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 52
[2022-11-02 20:13:47,585 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2022-11-02 20:13:47,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:13:47,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672559778] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:13:47,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:13:47,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16
[2022-11-02 20:13:47,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337789872]
[2022-11-02 20:13:47,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:13:47,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:13:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:13:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:13:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240
[2022-11-02 20:13:47,599 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 740
[2022-11-02 20:13:47,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 742 transitions, 2115 flow. Second operand has 7 states, 7 states have (on average 520.1428571428571) internal successors, (3641), 7 states have internal predecessors, (3641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:47,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:13:47,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 740
[2022-11-02 20:13:47,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:13:51,142 INFO L130 PetriNetUnfolder]: 1623/3498 cut-off events.
[2022-11-02 20:13:51,142 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES.
[2022-11-02 20:13:51,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5911 conditions, 3498 events. 1623/3498 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 16230 event pairs, 333 based on Foata normal form. 1/3099 useless extension candidates. Maximal degree in co-relation 5899. Up to 1666 conditions per place.
[2022-11-02 20:13:51,184 INFO L137 encePairwiseOnDemand]: 722/740 looper letters, 203 selfloop transitions, 14 changer transitions 10/798 dead transitions.
[2022-11-02 20:13:51,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 798 transitions, 2689 flow
[2022-11-02 20:13:51,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-02 20:13:51,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2022-11-02 20:13:51,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3728 transitions.
[2022-11-02 20:13:51,195 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7196911196911197
[2022-11-02 20:13:51,196 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3728 transitions.
[2022-11-02 20:13:51,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3728 transitions.
[2022-11-02 20:13:51,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:13:51,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3728 transitions.
[2022-11-02 20:13:51,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 532.5714285714286) internal successors, (3728), 7 states have internal predecessors, (3728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:51,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 740.0) internal successors, (5920), 8 states have internal predecessors, (5920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:51,221 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 740.0) internal successors, (5920), 8 states have internal predecessors, (5920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:51,221 INFO L175 Difference]: Start difference. First operand has 657 places, 742 transitions, 2115 flow. Second operand 7 states and 3728 transitions.
[2022-11-02 20:13:51,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 798 transitions, 2689 flow
[2022-11-02 20:13:51,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 798 transitions, 2590 flow, removed 24 selfloop flow, removed 6 redundant places.
[2022-11-02 20:13:51,251 INFO L231 Difference]: Finished difference. Result has 662 places, 754 transitions, 2127 flow
[2022-11-02 20:13:51,253 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=651, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2127, PETRI_PLACES=662, PETRI_TRANSITIONS=754}
[2022-11-02 20:13:51,256 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 5 predicate places.
[2022-11-02 20:13:51,257 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 754 transitions, 2127 flow
[2022-11-02 20:13:51,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 520.1428571428571) internal successors, (3641), 7 states have internal predecessors, (3641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:51,258 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:51,261 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:51,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:13:51,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:51,475 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:51,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1454663492, now seen corresponding path program 3 times
[2022-11-02 20:13:51,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:51,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100380043]
[2022-11-02 20:13:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:51,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2022-11-02 20:13:52,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:52,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100380043]
[2022-11-02 20:13:52,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100380043] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:13:52,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057379293]
[2022-11-02 20:13:52,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-11-02 20:13:52,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:52,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:13:52,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:13:52,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-02 20:13:53,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2022-11-02 20:13:53,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:13:53,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 19 conjunts are in the unsatisfiable core
[2022-11-02 20:13:53,782 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:13:53,926 INFO L356 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size
[2022-11-02 20:13:53,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 19
[2022-11-02 20:13:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2022-11-02 20:13:54,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:13:54,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057379293] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:13:54,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:13:54,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14
[2022-11-02 20:13:54,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205601866]
[2022-11-02 20:13:54,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:13:54,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:13:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:13:54,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:13:54,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182
[2022-11-02 20:13:54,136 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 740
[2022-11-02 20:13:54,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 754 transitions, 2127 flow. Second operand has 5 states, 5 states have (on average 552.2) internal successors, (2761), 5 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:54,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:13:54,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 740
[2022-11-02 20:13:54,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:13:57,012 INFO L130 PetriNetUnfolder]: 975/2662 cut-off events.
[2022-11-02 20:13:57,013 INFO L131 PetriNetUnfolder]: For 811/811 co-relation queries the response was YES.
[2022-11-02 20:13:57,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4845 conditions, 2662 events. 975/2662 cut-off events. For 811/811 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 12224 event pairs, 217 based on Foata normal form. 2/2374 useless extension candidates. Maximal degree in co-relation 4828. Up to 880 conditions per place.
[2022-11-02 20:13:57,044 INFO L137 encePairwiseOnDemand]: 733/740 looper letters, 137 selfloop transitions, 0 changer transitions 46/784 dead transitions.
[2022-11-02 20:13:57,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 784 transitions, 2592 flow
[2022-11-02 20:13:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:13:57,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2022-11-02 20:13:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2822 transitions.
[2022-11-02 20:13:57,055 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7627027027027027
[2022-11-02 20:13:57,055 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2822 transitions.
[2022-11-02 20:13:57,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2822 transitions.
[2022-11-02 20:13:57,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:13:57,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2822 transitions.
[2022-11-02 20:13:57,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 564.4) internal successors, (2822), 5 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:57,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 740.0) internal successors, (4440), 6 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:57,080 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 740.0) internal successors, (4440), 6 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:57,080 INFO L175 Difference]: Start difference. First operand has 662 places, 754 transitions, 2127 flow. Second operand 5 states and 2822 transitions.
[2022-11-02 20:13:57,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 784 transitions, 2592 flow
[2022-11-02 20:13:57,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 784 transitions, 2578 flow, removed 5 selfloop flow, removed 4 redundant places.
[2022-11-02 20:13:57,112 INFO L231 Difference]: Finished difference. Result has 662 places, 738 transitions, 2042 flow
[2022-11-02 20:13:57,114 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=2119, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=754, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2042, PETRI_PLACES=662, PETRI_TRANSITIONS=738}
[2022-11-02 20:13:57,117 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 5 predicate places.
[2022-11-02 20:13:57,118 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 738 transitions, 2042 flow
[2022-11-02 20:13:57,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 552.2) internal successors, (2761), 5 states have internal predecessors, (2761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:13:57,120 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:13:57,123 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:13:57,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:13:57,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:57,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:13:57,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:13:57,340 INFO L85 PathProgramCache]: Analyzing trace with hash 548993718, now seen corresponding path program 1 times
[2022-11-02 20:13:57,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:13:57,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447091453]
[2022-11-02 20:13:57,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:57,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:13:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:58,753 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2022-11-02 20:13:58,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:13:58,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447091453]
[2022-11-02 20:13:58,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447091453] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:13:58,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257593181]
[2022-11-02 20:13:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:13:58,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:13:58,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:13:58,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:13:58,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-11-02 20:13:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:13:59,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 10 conjunts are in the unsatisfiable core
[2022-11-02 20:13:59,882 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:14:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2022-11-02 20:14:00,180 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:14:00,420 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2022-11-02 20:14:00,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257593181] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:14:00,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 20:14:00,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22
[2022-11-02 20:14:00,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845888015]
[2022-11-02 20:14:00,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:14:00,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-11-02 20:14:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:14:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-11-02 20:14:00,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462
[2022-11-02 20:14:00,445 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 740
[2022-11-02 20:14:00,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 738 transitions, 2042 flow. Second operand has 22 states, 22 states have (on average 510.3636363636364) internal successors, (11228), 22 states have internal predecessors, (11228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:00,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:14:00,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 740
[2022-11-02 20:14:00,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:14:04,142 INFO L130 PetriNetUnfolder]: 658/2174 cut-off events.
[2022-11-02 20:14:04,142 INFO L131 PetriNetUnfolder]: For 589/589 co-relation queries the response was YES.
[2022-11-02 20:14:04,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4130 conditions, 2174 events. 658/2174 cut-off events. For 589/589 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7833 event pairs, 167 based on Foata normal form. 18/1985 useless extension candidates. Maximal degree in co-relation 4113. Up to 820 conditions per place.
[2022-11-02 20:14:04,164 INFO L137 encePairwiseOnDemand]: 643/740 looper letters, 226 selfloop transitions, 187 changer transitions 0/876 dead transitions.
[2022-11-02 20:14:04,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 876 transitions, 3408 flow
[2022-11-02 20:14:04,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states.
[2022-11-02 20:14:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2022-11-02 20:14:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 15461 transitions.
[2022-11-02 20:14:04,219 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6964414414414415
[2022-11-02 20:14:04,219 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 15461 transitions.
[2022-11-02 20:14:04,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 15461 transitions.
[2022-11-02 20:14:04,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:14:04,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 15461 transitions.
[2022-11-02 20:14:04,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 515.3666666666667) internal successors, (15461), 30 states have internal predecessors, (15461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:04,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 740.0) internal successors, (22940), 31 states have internal predecessors, (22940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:04,319 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 740.0) internal successors, (22940), 31 states have internal predecessors, (22940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:04,319 INFO L175 Difference]: Start difference. First operand has 662 places, 738 transitions, 2042 flow. Second operand 30 states and 15461 transitions.
[2022-11-02 20:14:04,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 687 places, 876 transitions, 3408 flow
[2022-11-02 20:14:04,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 682 places, 876 transitions, 3376 flow, removed 15 selfloop flow, removed 5 redundant places.
[2022-11-02 20:14:04,355 INFO L231 Difference]: Finished difference. Result has 689 places, 804 transitions, 2947 flow
[2022-11-02 20:14:04,357 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=2010, PETRI_DIFFERENCE_MINUEND_PLACES=653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=738, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2947, PETRI_PLACES=689, PETRI_TRANSITIONS=804}
[2022-11-02 20:14:04,358 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 32 predicate places.
[2022-11-02 20:14:04,358 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 804 transitions, 2947 flow
[2022-11-02 20:14:04,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 510.3636363636364) internal successors, (11228), 22 states have internal predecessors, (11228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:04,363 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:14:04,364 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:14:04,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:14:04,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2022-11-02 20:14:04,591 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:14:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:14:04,592 INFO L85 PathProgramCache]: Analyzing trace with hash 359391094, now seen corresponding path program 2 times
[2022-11-02 20:14:04,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:14:04,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374274235]
[2022-11-02 20:14:04,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:14:04,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:14:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:14:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked.
[2022-11-02 20:14:06,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:14:06,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374274235]
[2022-11-02 20:14:06,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374274235] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:14:06,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775257824]
[2022-11-02 20:14:06,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-02 20:14:06,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:14:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:14:06,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:14:06,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-11-02 20:14:07,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2022-11-02 20:14:07,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:14:07,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-11-02 20:14:07,664 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:14:08,018 INFO L356 Elim1Store]: treesize reduction 18, result has 51.4 percent of original size
[2022-11-02 20:14:08,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 42
[2022-11-02 20:14:08,353 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked.
[2022-11-02 20:14:08,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:14:08,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775257824] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:14:08,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:14:08,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20
[2022-11-02 20:14:08,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685071866]
[2022-11-02 20:14:08,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:14:08,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:14:08,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:14:08,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:14:08,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380
[2022-11-02 20:14:08,361 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 740
[2022-11-02 20:14:08,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 804 transitions, 2947 flow. Second operand has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:08,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:14:08,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 740
[2022-11-02 20:14:08,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:14:11,835 INFO L130 PetriNetUnfolder]: 1452/3495 cut-off events.
[2022-11-02 20:14:11,835 INFO L131 PetriNetUnfolder]: For 290/290 co-relation queries the response was YES.
[2022-11-02 20:14:11,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6222 conditions, 3495 events. 1452/3495 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 16559 event pairs, 333 based on Foata normal form. 1/3098 useless extension candidates. Maximal degree in co-relation 6202. Up to 1514 conditions per place.
[2022-11-02 20:14:11,883 INFO L137 encePairwiseOnDemand]: 720/740 looper letters, 192 selfloop transitions, 16 changer transitions 12/859 dead transitions.
[2022-11-02 20:14:11,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 695 places, 859 transitions, 3504 flow
[2022-11-02 20:14:11,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-02 20:14:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2022-11-02 20:14:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3735 transitions.
[2022-11-02 20:14:11,895 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.721042471042471
[2022-11-02 20:14:11,895 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3735 transitions.
[2022-11-02 20:14:11,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3735 transitions.
[2022-11-02 20:14:11,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:14:11,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3735 transitions.
[2022-11-02 20:14:11,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 533.5714285714286) internal successors, (3735), 7 states have internal predecessors, (3735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:11,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 740.0) internal successors, (5920), 8 states have internal predecessors, (5920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:11,914 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 740.0) internal successors, (5920), 8 states have internal predecessors, (5920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:11,914 INFO L175 Difference]: Start difference. First operand has 689 places, 804 transitions, 2947 flow. Second operand 7 states and 3735 transitions.
[2022-11-02 20:14:11,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 695 places, 859 transitions, 3504 flow
[2022-11-02 20:14:11,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 859 transitions, 3261 flow, removed 36 selfloop flow, removed 16 redundant places.
[2022-11-02 20:14:11,942 INFO L231 Difference]: Finished difference. Result has 684 places, 818 transitions, 2830 flow
[2022-11-02 20:14:11,944 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=2704, PETRI_DIFFERENCE_MINUEND_PLACES=673, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2830, PETRI_PLACES=684, PETRI_TRANSITIONS=818}
[2022-11-02 20:14:11,947 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 27 predicate places.
[2022-11-02 20:14:11,947 INFO L495 AbstractCegarLoop]: Abstraction has has 684 places, 818 transitions, 2830 flow
[2022-11-02 20:14:11,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:11,949 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:14:11,950 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:14:12,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-11-02 20:14:12,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:14:12,166 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:14:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:14:12,166 INFO L85 PathProgramCache]: Analyzing trace with hash -235132502, now seen corresponding path program 3 times
[2022-11-02 20:14:12,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:14:12,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198719835]
[2022-11-02 20:14:12,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:14:12,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:14:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:14:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked.
[2022-11-02 20:14:13,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:14:13,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198719835]
[2022-11-02 20:14:13,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198719835] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:14:13,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720749511]
[2022-11-02 20:14:13,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-11-02 20:14:13,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:14:13,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:14:14,000 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:14:14,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-11-02 20:14:15,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2022-11-02 20:14:15,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:14:15,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 58 conjunts are in the unsatisfiable core
[2022-11-02 20:14:15,065 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:14:20,278 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:14:20,280 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:14:20,307 INFO L356 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size
[2022-11-02 20:14:20,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 61
[2022-11-02 20:14:20,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 43 treesize of output 31
[2022-11-02 20:14:20,553 INFO L356 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size
[2022-11-02 20:14:20,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 20
[2022-11-02 20:14:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked.
[2022-11-02 20:14:20,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:14:20,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720749511] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:14:20,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 20:14:20,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [15] total 37
[2022-11-02 20:14:20,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121013731]
[2022-11-02 20:14:20,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:14:20,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2022-11-02 20:14:20,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:14:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2022-11-02 20:14:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1220, Unknown=0, NotChecked=0, Total=1332
[2022-11-02 20:14:20,879 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 740
[2022-11-02 20:14:20,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 818 transitions, 2830 flow. Second operand has 24 states, 24 states have (on average 370.7083333333333) internal successors, (8897), 24 states have internal predecessors, (8897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:20,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:14:20,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 740
[2022-11-02 20:14:20,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:14:34,364 INFO L130 PetriNetUnfolder]: 3743/7952 cut-off events.
[2022-11-02 20:14:34,365 INFO L131 PetriNetUnfolder]: For 3075/3417 co-relation queries the response was YES.
[2022-11-02 20:14:34,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16542 conditions, 7952 events. 3743/7952 cut-off events. For 3075/3417 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 54417 event pairs, 325 based on Foata normal form. 3/7175 useless extension candidates. Maximal degree in co-relation 16517. Up to 2133 conditions per place.
[2022-11-02 20:14:34,472 INFO L137 encePairwiseOnDemand]: 599/740 looper letters, 355 selfloop transitions, 204 changer transitions 42/1075 dead transitions.
[2022-11-02 20:14:34,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 743 places, 1075 transitions, 4811 flow
[2022-11-02 20:14:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-11-02 20:14:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states.
[2022-11-02 20:14:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 23183 transitions.
[2022-11-02 20:14:34,511 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4972758472758473
[2022-11-02 20:14:34,512 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 23183 transitions.
[2022-11-02 20:14:34,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 23183 transitions.
[2022-11-02 20:14:34,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:14:34,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 23183 transitions.
[2022-11-02 20:14:34,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 367.984126984127) internal successors, (23183), 63 states have internal predecessors, (23183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:34,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 740.0) internal successors, (47360), 64 states have internal predecessors, (47360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:34,641 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 740.0) internal successors, (47360), 64 states have internal predecessors, (47360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:34,641 INFO L175 Difference]: Start difference. First operand has 684 places, 818 transitions, 2830 flow. Second operand 63 states and 23183 transitions.
[2022-11-02 20:14:34,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 743 places, 1075 transitions, 4811 flow
[2022-11-02 20:14:34,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 739 places, 1075 transitions, 4745 flow, removed 25 selfloop flow, removed 4 redundant places.
[2022-11-02 20:14:34,681 INFO L231 Difference]: Finished difference. Result has 757 places, 927 transitions, 3780 flow
[2022-11-02 20:14:34,683 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=2822, PETRI_DIFFERENCE_MINUEND_PLACES=677, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=3780, PETRI_PLACES=757, PETRI_TRANSITIONS=927}
[2022-11-02 20:14:34,683 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 100 predicate places.
[2022-11-02 20:14:34,684 INFO L495 AbstractCegarLoop]: Abstraction has has 757 places, 927 transitions, 3780 flow
[2022-11-02 20:14:34,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 370.7083333333333) internal successors, (8897), 24 states have internal predecessors, (8897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:14:34,687 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:14:34,688 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:14:34,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2022-11-02 20:14:34,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:14:34,903 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:14:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:14:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1060516490, now seen corresponding path program 4 times
[2022-11-02 20:14:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:14:34,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108269135]
[2022-11-02 20:14:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:14:34,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:14:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:14:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked.
[2022-11-02 20:14:36,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:14:36,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108269135]
[2022-11-02 20:14:36,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108269135] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:14:36,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884660069]
[2022-11-02 20:14:36,626 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-11-02 20:14:36,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:14:36,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:14:36,628 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:14:36,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2022-11-02 20:15:06,503 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-11-02 20:15:06,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-02 20:15:06,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-11-02 20:15:06,543 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:15:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked.
[2022-11-02 20:15:06,921 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:15:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked.
[2022-11-02 20:15:07,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884660069] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:15:07,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 20:15:07,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 39
[2022-11-02 20:15:07,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705088980]
[2022-11-02 20:15:07,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:15:07,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states
[2022-11-02 20:15:07,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:15:07,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants.
[2022-11-02 20:15:07,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482
[2022-11-02 20:15:07,347 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 740
[2022-11-02 20:15:07,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 757 places, 927 transitions, 3780 flow. Second operand has 39 states, 39 states have (on average 507.3076923076923) internal successors, (19785), 39 states have internal predecessors, (19785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:15:07,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 20:15:07,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 740
[2022-11-02 20:15:07,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 20:15:18,029 INFO L130 PetriNetUnfolder]: 3420/7973 cut-off events.
[2022-11-02 20:15:18,029 INFO L131 PetriNetUnfolder]: For 13528/14156 co-relation queries the response was YES.
[2022-11-02 20:15:18,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22337 conditions, 7973 events. 3420/7973 cut-off events. For 13528/14156 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 57300 event pairs, 594 based on Foata normal form. 18/6901 useless extension candidates. Maximal degree in co-relation 22297. Up to 4101 conditions per place.
[2022-11-02 20:15:18,212 INFO L137 encePairwiseOnDemand]: 696/740 looper letters, 384 selfloop transitions, 173 changer transitions 0/1038 dead transitions.
[2022-11-02 20:15:18,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 784 places, 1038 transitions, 5542 flow
[2022-11-02 20:15:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states.
[2022-11-02 20:15:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2022-11-02 20:15:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 18899 transitions.
[2022-11-02 20:15:18,237 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6902483564645727
[2022-11-02 20:15:18,238 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 18899 transitions.
[2022-11-02 20:15:18,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 18899 transitions.
[2022-11-02 20:15:18,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:15:18,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 18899 transitions.
[2022-11-02 20:15:18,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 510.7837837837838) internal successors, (18899), 37 states have internal predecessors, (18899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:15:18,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 740.0) internal successors, (28120), 38 states have internal predecessors, (28120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:15:18,315 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 740.0) internal successors, (28120), 38 states have internal predecessors, (28120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:15:18,315 INFO L175 Difference]: Start difference. First operand has 757 places, 927 transitions, 3780 flow. Second operand 37 states and 18899 transitions.
[2022-11-02 20:15:18,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 784 places, 1038 transitions, 5542 flow
[2022-11-02 20:15:18,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 737 places, 1038 transitions, 5306 flow, removed 15 selfloop flow, removed 47 redundant places.
[2022-11-02 20:15:18,383 INFO L231 Difference]: Finished difference. Result has 744 places, 984 transitions, 4388 flow
[2022-11-02 20:15:18,386 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=740, PETRI_DIFFERENCE_MINUEND_FLOW=3544, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=4388, PETRI_PLACES=744, PETRI_TRANSITIONS=984}
[2022-11-02 20:15:18,387 INFO L287 CegarLoopForPetriNet]: 657 programPoint places, 87 predicate places.
[2022-11-02 20:15:18,387 INFO L495 AbstractCegarLoop]: Abstraction has has 744 places, 984 transitions, 4388 flow
[2022-11-02 20:15:18,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 507.3076923076923) internal successors, (19785), 39 states have internal predecessors, (19785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:15:18,392 INFO L200 CegarLoopForPetriNet]: Found error trace
[2022-11-02 20:15:18,393 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:15:18,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2022-11-02 20:15:18,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2022-11-02 20:15:18,607 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2022-11-02 20:15:18,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:15:18,608 INFO L85 PathProgramCache]: Analyzing trace with hash 231207630, now seen corresponding path program 5 times
[2022-11-02 20:15:18,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:15:18,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200689999]
[2022-11-02 20:15:18,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:15:18,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:15:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:15:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1689 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked.
[2022-11-02 20:15:21,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:15:21,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200689999]
[2022-11-02 20:15:21,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200689999] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 20:15:21,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179730808]
[2022-11-02 20:15:21,650 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-11-02 20:15:21,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:15:21,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:15:21,655 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:15:21,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68d888d-83e7-445d-a59d-bdbe7030fde9/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process