./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8 --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 ecda181bd3fe1882667151a04232fb9d04292dd6ca3491d98fdc8de5d539856a --- 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-e04fb08 [2022-11-16 11:45:06,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:45:06,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:45:06,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:45:06,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:45:06,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:45:06,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:45:06,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:45:06,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:45:06,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:45:06,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:45:06,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:45:06,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:45:06,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:45:06,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:45:06,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:45:06,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:45:06,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:45:06,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:45:06,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:45:06,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:45:06,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:45:06,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:45:06,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:45:06,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:45:06,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:45:06,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:45:06,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:45:06,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:45:06,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:45:06,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:45:06,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:45:06,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:45:06,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:45:06,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:45:06,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:45:06,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:45:06,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:45:06,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:45:06,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:45:06,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:45:06,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:45:06,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:45:06,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:45:06,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:45:06,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:45:06,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:45:06,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:45:06,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:45:06,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:45:06,851 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:45:06,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:45:06,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:45:06,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:45:06,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:45:06,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:45:06,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:45:06,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:45:06,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:45:06,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:45:06,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:45:06,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:45:06,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:45:06,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:45:06,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:45:06,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:45:06,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:45:06,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:45:06,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:45:06,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:45:06,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:45:06,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:45:06,861 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:45:06,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:45:06,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:45:06,862 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_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecda181bd3fe1882667151a04232fb9d04292dd6ca3491d98fdc8de5d539856a [2022-11-16 11:45:07,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:45:07,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:45:07,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:45:07,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:45:07,209 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:45:07,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2022-11-16 11:45:07,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/data/2c4ed6676/125ff7840bff478f907501cb568b8770/FLAGb7580ae2a [2022-11-16 11:45:07,902 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:45:07,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2022-11-16 11:45:07,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/data/2c4ed6676/125ff7840bff478f907501cb568b8770/FLAGb7580ae2a [2022-11-16 11:45:08,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/data/2c4ed6676/125ff7840bff478f907501cb568b8770 [2022-11-16 11:45:08,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:45:08,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:45:08,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:45:08,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:45:08,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:45:08,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0d9da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08, skipping insertion in model container [2022-11-16 11:45:08,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:45:08,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:45:08,586 WARN L229 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_bda62943-8ddb-4c45-937f-7652d4475cab/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c[2924,2937] [2022-11-16 11:45:08,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:45:08,636 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:45:08,685 WARN L229 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_bda62943-8ddb-4c45-937f-7652d4475cab/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c[2924,2937] [2022-11-16 11:45:08,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:45:08,723 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:45:08,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08 WrapperNode [2022-11-16 11:45:08,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:45:08,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:45:08,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:45:08,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:45:08,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,814 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 191 [2022-11-16 11:45:08,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:45:08,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:45:08,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:45:08,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:45:08,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:45:08,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:45:08,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:45:08,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:45:08,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (1/1) ... [2022-11-16 11:45:08,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:45:08,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:45:08,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:45:08,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:45:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:45:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:45:08,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:45:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:45:08,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:45:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:45:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:45:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:45:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:45:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:45:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:45:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:45:09,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:45:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:45:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:45:09,002 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:45:09,172 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:45:09,175 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:45:09,749 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:45:09,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:45:09,902 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 11:45:09,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:45:09 BoogieIcfgContainer [2022-11-16 11:45:09,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:45:09,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:45:09,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:45:09,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:45:09,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:45:08" (1/3) ... [2022-11-16 11:45:09,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429b0375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:09, skipping insertion in model container [2022-11-16 11:45:09,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:08" (2/3) ... [2022-11-16 11:45:09,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429b0375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:09, skipping insertion in model container [2022-11-16 11:45:09,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:45:09" (3/3) ... [2022-11-16 11:45:09,923 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2022-11-16 11:45:09,934 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:45:09,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:45:09,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:45:09,948 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:45:10,027 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:45:10,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 189 transitions, 394 flow [2022-11-16 11:45:10,240 INFO L130 PetriNetUnfolder]: 15/187 cut-off events. [2022-11-16 11:45:10,240 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:45:10,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 187 events. 15/187 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2022-11-16 11:45:10,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 189 transitions, 394 flow [2022-11-16 11:45:10,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 178 transitions, 368 flow [2022-11-16 11:45:10,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:45:10,276 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;@4050b565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:45:10,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-16 11:45:10,365 INFO L130 PetriNetUnfolder]: 15/177 cut-off events. [2022-11-16 11:45:10,366 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:45:10,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:10,367 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:10,368 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash -192724351, now seen corresponding path program 1 times [2022-11-16 11:45:10,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:10,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046276299] [2022-11-16 11:45:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:10,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:10,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:10,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:10,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046276299] [2022-11-16 11:45:10,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046276299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:10,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:10,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:45:10,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389165678] [2022-11-16 11:45:10,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:10,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:45:10,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:10,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:45:10,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:45:10,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 189 [2022-11-16 11:45:10,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 178 transitions, 368 flow. Second operand has 2 states, 2 states have (on average 175.0) internal successors, (350), 2 states have internal predecessors, (350), 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) [2022-11-16 11:45:10,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:10,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 189 [2022-11-16 11:45:10,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:11,030 INFO L130 PetriNetUnfolder]: 14/193 cut-off events. [2022-11-16 11:45:11,033 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 11:45:11,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 193 events. 14/193 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 171 event pairs, 3 based on Foata normal form. 15/194 useless extension candidates. Maximal degree in co-relation 147. Up to 20 conditions per place. [2022-11-16 11:45:11,040 INFO L137 encePairwiseOnDemand]: 179/189 looper letters, 7 selfloop transitions, 0 changer transitions 6/168 dead transitions. [2022-11-16 11:45:11,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 168 transitions, 362 flow [2022-11-16 11:45:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:45:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:45:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 359 transitions. [2022-11-16 11:45:11,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497354497354498 [2022-11-16 11:45:11,067 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 359 transitions. [2022-11-16 11:45:11,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 359 transitions. [2022-11-16 11:45:11,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:11,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 359 transitions. [2022-11-16 11:45:11,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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) [2022-11-16 11:45:11,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2022-11-16 11:45:11,094 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2022-11-16 11:45:11,096 INFO L175 Difference]: Start difference. First operand has 170 places, 178 transitions, 368 flow. Second operand 2 states and 359 transitions. [2022-11-16 11:45:11,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 168 transitions, 362 flow [2022-11-16 11:45:11,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 168 transitions, 354 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:45:11,112 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 328 flow [2022-11-16 11:45:11,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=328, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-16 11:45:11,126 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, -3 predicate places. [2022-11-16 11:45:11,127 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 328 flow [2022-11-16 11:45:11,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.0) internal successors, (350), 2 states have internal predecessors, (350), 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) [2022-11-16 11:45:11,128 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:11,129 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:11,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:45:11,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:11,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:11,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1161279415, now seen corresponding path program 1 times [2022-11-16 11:45:11,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:11,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398035508] [2022-11-16 11:45:11,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:11,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:11,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:11,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398035508] [2022-11-16 11:45:11,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398035508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:11,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:11,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:45:11,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904653165] [2022-11-16 11:45:11,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:11,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:45:11,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:11,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:45:11,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:11,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 189 [2022-11-16 11:45:11,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 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) [2022-11-16 11:45:11,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:11,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 189 [2022-11-16 11:45:11,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:12,210 INFO L130 PetriNetUnfolder]: 56/309 cut-off events. [2022-11-16 11:45:12,210 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:45:12,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 309 events. 56/309 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 851 event pairs, 12 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 445. Up to 64 conditions per place. [2022-11-16 11:45:12,217 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 45 selfloop transitions, 5 changer transitions 0/171 dead transitions. [2022-11-16 11:45:12,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 171 transitions, 447 flow [2022-11-16 11:45:12,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:45:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:45:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2022-11-16 11:45:12,226 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2022-11-16 11:45:12,226 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2022-11-16 11:45:12,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2022-11-16 11:45:12,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:12,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2022-11-16 11:45:12,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2022-11-16 11:45:12,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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) [2022-11-16 11:45:12,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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) [2022-11-16 11:45:12,239 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 328 flow. Second operand 6 states and 837 transitions. [2022-11-16 11:45:12,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 171 transitions, 447 flow [2022-11-16 11:45:12,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 171 transitions, 447 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:45:12,248 INFO L231 Difference]: Finished difference. Result has 167 places, 163 transitions, 346 flow [2022-11-16 11:45:12,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=167, PETRI_TRANSITIONS=163} [2022-11-16 11:45:12,250 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, -3 predicate places. [2022-11-16 11:45:12,250 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 163 transitions, 346 flow [2022-11-16 11:45:12,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 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) [2022-11-16 11:45:12,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:12,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:12,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:45:12,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:12,256 INFO L85 PathProgramCache]: Analyzing trace with hash 976584769, now seen corresponding path program 1 times [2022-11-16 11:45:12,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:12,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53998498] [2022-11-16 11:45:12,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:12,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:12,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:12,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53998498] [2022-11-16 11:45:12,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53998498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:12,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:12,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:45:12,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909624220] [2022-11-16 11:45:12,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:12,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:45:12,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:12,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:45:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:45:12,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 189 [2022-11-16 11:45:12,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 163 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 141.14285714285714) internal successors, (988), 7 states have internal predecessors, (988), 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) [2022-11-16 11:45:12,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:12,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 189 [2022-11-16 11:45:12,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:12,955 INFO L130 PetriNetUnfolder]: 57/353 cut-off events. [2022-11-16 11:45:12,955 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 11:45:12,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 353 events. 57/353 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 969 event pairs, 12 based on Foata normal form. 4/338 useless extension candidates. Maximal degree in co-relation 525. Up to 60 conditions per place. [2022-11-16 11:45:12,958 INFO L137 encePairwiseOnDemand]: 179/189 looper letters, 46 selfloop transitions, 8 changer transitions 7/182 dead transitions. [2022-11-16 11:45:12,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 182 transitions, 511 flow [2022-11-16 11:45:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:45:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:45:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1158 transitions. [2022-11-16 11:45:12,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7658730158730159 [2022-11-16 11:45:12,963 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1158 transitions. [2022-11-16 11:45:12,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1158 transitions. [2022-11-16 11:45:12,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:12,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1158 transitions. [2022-11-16 11:45:12,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 144.75) internal successors, (1158), 8 states have internal predecessors, (1158), 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) [2022-11-16 11:45:12,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 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) [2022-11-16 11:45:12,975 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 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) [2022-11-16 11:45:12,976 INFO L175 Difference]: Start difference. First operand has 167 places, 163 transitions, 346 flow. Second operand 8 states and 1158 transitions. [2022-11-16 11:45:12,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 182 transitions, 511 flow [2022-11-16 11:45:12,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 182 transitions, 501 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:45:12,984 INFO L231 Difference]: Finished difference. Result has 172 places, 164 transitions, 364 flow [2022-11-16 11:45:12,985 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=364, PETRI_PLACES=172, PETRI_TRANSITIONS=164} [2022-11-16 11:45:12,988 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 2 predicate places. [2022-11-16 11:45:12,988 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 164 transitions, 364 flow [2022-11-16 11:45:12,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 141.14285714285714) internal successors, (988), 7 states have internal predecessors, (988), 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) [2022-11-16 11:45:12,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:12,989 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:12,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:45:12,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:12,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash 732931276, now seen corresponding path program 1 times [2022-11-16 11:45:12,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:12,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725328323] [2022-11-16 11:45:12,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:12,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:45:13,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:13,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725328323] [2022-11-16 11:45:13,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725328323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:13,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:13,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:45:13,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027097453] [2022-11-16 11:45:13,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:13,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:45:13,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:13,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:45:13,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:45:13,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2022-11-16 11:45:13,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 164 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 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) [2022-11-16 11:45:13,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:13,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2022-11-16 11:45:13,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:13,615 INFO L130 PetriNetUnfolder]: 119/471 cut-off events. [2022-11-16 11:45:13,615 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-11-16 11:45:13,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 471 events. 119/471 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1854 event pairs, 14 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 760. Up to 80 conditions per place. [2022-11-16 11:45:13,622 INFO L137 encePairwiseOnDemand]: 184/189 looper letters, 32 selfloop transitions, 9 changer transitions 0/184 dead transitions. [2022-11-16 11:45:13,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 184 transitions, 498 flow [2022-11-16 11:45:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:45:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:45:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 831 transitions. [2022-11-16 11:45:13,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8793650793650793 [2022-11-16 11:45:13,626 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 831 transitions. [2022-11-16 11:45:13,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 831 transitions. [2022-11-16 11:45:13,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:13,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 831 transitions. [2022-11-16 11:45:13,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 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) [2022-11-16 11:45:13,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 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) [2022-11-16 11:45:13,639 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 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) [2022-11-16 11:45:13,639 INFO L175 Difference]: Start difference. First operand has 172 places, 164 transitions, 364 flow. Second operand 5 states and 831 transitions. [2022-11-16 11:45:13,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 184 transitions, 498 flow [2022-11-16 11:45:13,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 184 transitions, 478 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-16 11:45:13,647 INFO L231 Difference]: Finished difference. Result has 172 places, 170 transitions, 406 flow [2022-11-16 11:45:13,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=406, PETRI_PLACES=172, PETRI_TRANSITIONS=170} [2022-11-16 11:45:13,649 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 2 predicate places. [2022-11-16 11:45:13,654 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 170 transitions, 406 flow [2022-11-16 11:45:13,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 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) [2022-11-16 11:45:13,655 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:13,655 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:13,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:45:13,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:13,657 INFO L85 PathProgramCache]: Analyzing trace with hash 276976172, now seen corresponding path program 2 times [2022-11-16 11:45:13,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:13,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135314903] [2022-11-16 11:45:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:13,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:45:14,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:14,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135314903] [2022-11-16 11:45:14,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135314903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:14,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:14,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:14,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130959639] [2022-11-16 11:45:14,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:14,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:14,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:14,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:14,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:14,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2022-11-16 11:45:14,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 170 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 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) [2022-11-16 11:45:14,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:14,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2022-11-16 11:45:14,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:14,276 INFO L130 PetriNetUnfolder]: 77/411 cut-off events. [2022-11-16 11:45:14,276 INFO L131 PetriNetUnfolder]: For 165/166 co-relation queries the response was YES. [2022-11-16 11:45:14,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 411 events. 77/411 cut-off events. For 165/166 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1480 event pairs, 16 based on Foata normal form. 1/393 useless extension candidates. Maximal degree in co-relation 713. Up to 70 conditions per place. [2022-11-16 11:45:14,280 INFO L137 encePairwiseOnDemand]: 184/189 looper letters, 43 selfloop transitions, 2 changer transitions 4/182 dead transitions. [2022-11-16 11:45:14,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 182 transitions, 552 flow [2022-11-16 11:45:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:45:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:45:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 734 transitions. [2022-11-16 11:45:14,283 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7767195767195767 [2022-11-16 11:45:14,284 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 734 transitions. [2022-11-16 11:45:14,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 734 transitions. [2022-11-16 11:45:14,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:14,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 734 transitions. [2022-11-16 11:45:14,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 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) [2022-11-16 11:45:14,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 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) [2022-11-16 11:45:14,290 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 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) [2022-11-16 11:45:14,291 INFO L175 Difference]: Start difference. First operand has 172 places, 170 transitions, 406 flow. Second operand 5 states and 734 transitions. [2022-11-16 11:45:14,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 182 transitions, 552 flow [2022-11-16 11:45:14,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 182 transitions, 552 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:45:14,299 INFO L231 Difference]: Finished difference. Result has 179 places, 171 transitions, 422 flow [2022-11-16 11:45:14,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=179, PETRI_TRANSITIONS=171} [2022-11-16 11:45:14,302 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 9 predicate places. [2022-11-16 11:45:14,303 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 171 transitions, 422 flow [2022-11-16 11:45:14,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.2) internal successors, (721), 5 states have internal predecessors, (721), 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) [2022-11-16 11:45:14,304 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:14,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:14,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:45:14,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1936409550, now seen corresponding path program 1 times [2022-11-16 11:45:14,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:14,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881558399] [2022-11-16 11:45:14,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:14,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:45:14,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:14,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881558399] [2022-11-16 11:45:14,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881558399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:14,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:14,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:45:14,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325833120] [2022-11-16 11:45:14,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:14,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:45:14,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:14,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:45:14,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:45:14,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 189 [2022-11-16 11:45:14,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 171 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2022-11-16 11:45:14,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:14,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 189 [2022-11-16 11:45:14,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:14,762 INFO L130 PetriNetUnfolder]: 62/418 cut-off events. [2022-11-16 11:45:14,762 INFO L131 PetriNetUnfolder]: For 163/166 co-relation queries the response was YES. [2022-11-16 11:45:14,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 418 events. 62/418 cut-off events. For 163/166 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1487 event pairs, 12 based on Foata normal form. 7/403 useless extension candidates. Maximal degree in co-relation 709. Up to 86 conditions per place. [2022-11-16 11:45:14,766 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 25 selfloop transitions, 2 changer transitions 2/181 dead transitions. [2022-11-16 11:45:14,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 181 transitions, 531 flow [2022-11-16 11:45:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:45:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:45:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2022-11-16 11:45:14,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.908289241622575 [2022-11-16 11:45:14,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 515 transitions. [2022-11-16 11:45:14,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 515 transitions. [2022-11-16 11:45:14,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:14,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 515 transitions. [2022-11-16 11:45:14,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2022-11-16 11:45:14,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2022-11-16 11:45:14,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2022-11-16 11:45:14,774 INFO L175 Difference]: Start difference. First operand has 179 places, 171 transitions, 422 flow. Second operand 3 states and 515 transitions. [2022-11-16 11:45:14,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 181 transitions, 531 flow [2022-11-16 11:45:14,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 181 transitions, 525 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-16 11:45:14,783 INFO L231 Difference]: Finished difference. Result has 177 places, 172 transitions, 428 flow [2022-11-16 11:45:14,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=177, PETRI_TRANSITIONS=172} [2022-11-16 11:45:14,787 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 7 predicate places. [2022-11-16 11:45:14,787 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 172 transitions, 428 flow [2022-11-16 11:45:14,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2022-11-16 11:45:14,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:14,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:14,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:45:14,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:14,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash 614307297, now seen corresponding path program 1 times [2022-11-16 11:45:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:14,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224118110] [2022-11-16 11:45:14,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:14,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:45:15,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:15,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224118110] [2022-11-16 11:45:15,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224118110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:15,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:15,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:45:15,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483341036] [2022-11-16 11:45:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:45:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:15,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:45:15,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:15,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 189 [2022-11-16 11:45:15,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 172 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 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) [2022-11-16 11:45:15,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:15,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 189 [2022-11-16 11:45:15,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:45:15,357 INFO L130 PetriNetUnfolder]: 63/552 cut-off events. [2022-11-16 11:45:15,357 INFO L131 PetriNetUnfolder]: For 211/217 co-relation queries the response was YES. [2022-11-16 11:45:15,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 552 events. 63/552 cut-off events. For 211/217 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2124 event pairs, 19 based on Foata normal form. 6/531 useless extension candidates. Maximal degree in co-relation 952. Up to 94 conditions per place. [2022-11-16 11:45:15,361 INFO L137 encePairwiseOnDemand]: 179/189 looper letters, 34 selfloop transitions, 8 changer transitions 22/198 dead transitions. [2022-11-16 11:45:15,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 198 transitions, 642 flow [2022-11-16 11:45:15,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:45:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:45:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1361 transitions. [2022-11-16 11:45:15,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8001175778953556 [2022-11-16 11:45:15,366 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1361 transitions. [2022-11-16 11:45:15,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1361 transitions. [2022-11-16 11:45:15,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:45:15,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1361 transitions. [2022-11-16 11:45:15,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 151.22222222222223) internal successors, (1361), 9 states have internal predecessors, (1361), 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) [2022-11-16 11:45:15,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 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) [2022-11-16 11:45:15,375 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 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) [2022-11-16 11:45:15,376 INFO L175 Difference]: Start difference. First operand has 177 places, 172 transitions, 428 flow. Second operand 9 states and 1361 transitions. [2022-11-16 11:45:15,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 198 transitions, 642 flow [2022-11-16 11:45:15,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 198 transitions, 640 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:45:15,382 INFO L231 Difference]: Finished difference. Result has 186 places, 173 transitions, 454 flow [2022-11-16 11:45:15,383 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=454, PETRI_PLACES=186, PETRI_TRANSITIONS=173} [2022-11-16 11:45:15,384 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 16 predicate places. [2022-11-16 11:45:15,384 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 173 transitions, 454 flow [2022-11-16 11:45:15,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 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) [2022-11-16 11:45:15,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:45:15,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:15,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:45:15,385 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:45:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:15,386 INFO L85 PathProgramCache]: Analyzing trace with hash 279596056, now seen corresponding path program 1 times [2022-11-16 11:45:15,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:15,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85605887] [2022-11-16 11:45:15,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:15,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:45:18,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:18,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85605887] [2022-11-16 11:45:18,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85605887] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:45:18,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023890396] [2022-11-16 11:45:18,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:18,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:45:18,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:45:18,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:45:18,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:45:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:18,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-16 11:45:18,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:45:18,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:45:19,139 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:45:19,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:45:19,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:45:20,653 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-16 11:45:20,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:45:20,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:45:21,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:45:21,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:45:22,690 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-16 11:45:22,691 INFO L350 Elim1Store]: Elim1 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 42 treesize of output 10 [2022-11-16 11:45:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:22,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:45:31,113 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:31,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 90 [2022-11-16 11:45:31,224 INFO L321 Elim1Store]: treesize reduction 9, result has 82.4 percent of original size [2022-11-16 11:45:31,226 INFO L350 Elim1Store]: Elim1 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 13804 treesize of output 12821 [2022-11-16 11:45:31,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:45:31,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:31,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 12780 treesize of output 11276 [2022-11-16 11:45:31,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:45:31,667 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:31,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 11244 treesize of output 10508 [2022-11-16 11:45:31,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:45:31,847 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:31,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 10476 treesize of output 7436 [2022-11-16 11:45:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:45:47,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023890396] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:45:47,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:45:47,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 33, 30] total 77 [2022-11-16 11:45:47,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888924542] [2022-11-16 11:45:47,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:45:47,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-11-16 11:45:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:47,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-11-16 11:45:47,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=888, Invalid=4878, Unknown=86, NotChecked=0, Total=5852 [2022-11-16 11:45:47,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 189 [2022-11-16 11:45:47,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 173 transitions, 454 flow. Second operand has 77 states, 77 states have (on average 58.753246753246756) internal successors, (4524), 77 states have internal predecessors, (4524), 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) [2022-11-16 11:45:47,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:45:47,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 189 [2022-11-16 11:45:47,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:00,780 INFO L130 PetriNetUnfolder]: 3762/7257 cut-off events. [2022-11-16 11:46:00,781 INFO L131 PetriNetUnfolder]: For 3910/3910 co-relation queries the response was YES. [2022-11-16 11:46:00,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17844 conditions, 7257 events. 3762/7257 cut-off events. For 3910/3910 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 55991 event pairs, 692 based on Foata normal form. 1/6958 useless extension candidates. Maximal degree in co-relation 17830. Up to 1755 conditions per place. [2022-11-16 11:46:00,853 INFO L137 encePairwiseOnDemand]: 139/189 looper letters, 420 selfloop transitions, 159 changer transitions 61/689 dead transitions. [2022-11-16 11:46:00,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 689 transitions, 3577 flow [2022-11-16 11:46:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-11-16 11:46:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2022-11-16 11:46:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 4533 transitions. [2022-11-16 11:46:00,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.33311287477954143 [2022-11-16 11:46:00,875 INFO L72 ComplementDD]: Start complementDD. Operand 72 states and 4533 transitions. [2022-11-16 11:46:00,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 4533 transitions. [2022-11-16 11:46:00,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:00,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 72 states and 4533 transitions. [2022-11-16 11:46:00,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 73 states, 72 states have (on average 62.958333333333336) internal successors, (4533), 72 states have internal predecessors, (4533), 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) [2022-11-16 11:46:00,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 73 states, 73 states have (on average 189.0) internal successors, (13797), 73 states have internal predecessors, (13797), 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) [2022-11-16 11:46:00,929 INFO L81 ComplementDD]: Finished complementDD. Result has 73 states, 73 states have (on average 189.0) internal successors, (13797), 73 states have internal predecessors, (13797), 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) [2022-11-16 11:46:00,929 INFO L175 Difference]: Start difference. First operand has 186 places, 173 transitions, 454 flow. Second operand 72 states and 4533 transitions. [2022-11-16 11:46:00,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 689 transitions, 3577 flow [2022-11-16 11:46:00,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 689 transitions, 3545 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:46:00,965 INFO L231 Difference]: Finished difference. Result has 296 places, 325 transitions, 1735 flow [2022-11-16 11:46:00,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=72, PETRI_FLOW=1735, PETRI_PLACES=296, PETRI_TRANSITIONS=325} [2022-11-16 11:46:00,968 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 126 predicate places. [2022-11-16 11:46:00,968 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 325 transitions, 1735 flow [2022-11-16 11:46:00,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 58.753246753246756) internal successors, (4524), 77 states have internal predecessors, (4524), 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) [2022-11-16 11:46:00,971 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:00,971 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:00,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:46:01,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 11:46:01,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:46:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -405816998, now seen corresponding path program 2 times [2022-11-16 11:46:01,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:01,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27357054] [2022-11-16 11:46:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:46:03,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:03,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27357054] [2022-11-16 11:46:03,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27357054] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:46:03,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148352672] [2022-11-16 11:46:03,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:46:03,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:46:03,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:46:03,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:46:03,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:46:04,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:46:04,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:46:04,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-16 11:46:04,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:46:06,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:46:06,726 INFO L321 Elim1Store]: treesize reduction 39, result has 7.1 percent of original size [2022-11-16 11:46:06,726 INFO L350 Elim1Store]: Elim1 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 42 treesize of output 13 [2022-11-16 11:46:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:46:06,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:46:07,705 INFO L321 Elim1Store]: treesize reduction 15, result has 83.9 percent of original size [2022-11-16 11:46:07,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 103 [2022-11-16 11:46:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:46:10,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148352672] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:46:10,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:46:10,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 18] total 54 [2022-11-16 11:46:10,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878620299] [2022-11-16 11:46:10,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:46:10,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-16 11:46:10,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-16 11:46:10,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=523, Invalid=2339, Unknown=0, NotChecked=0, Total=2862 [2022-11-16 11:46:10,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 189 [2022-11-16 11:46:10,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 325 transitions, 1735 flow. Second operand has 54 states, 54 states have (on average 72.05555555555556) internal successors, (3891), 54 states have internal predecessors, (3891), 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) [2022-11-16 11:46:10,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:10,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 189 [2022-11-16 11:46:10,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:21,438 INFO L130 PetriNetUnfolder]: 8921/16153 cut-off events. [2022-11-16 11:46:21,438 INFO L131 PetriNetUnfolder]: For 142606/143563 co-relation queries the response was YES. [2022-11-16 11:46:21,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92216 conditions, 16153 events. 8921/16153 cut-off events. For 142606/143563 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 133006 event pairs, 1362 based on Foata normal form. 24/16066 useless extension candidates. Maximal degree in co-relation 92156. Up to 5290 conditions per place. [2022-11-16 11:46:21,680 INFO L137 encePairwiseOnDemand]: 141/189 looper letters, 592 selfloop transitions, 403 changer transitions 22/1074 dead transitions. [2022-11-16 11:46:21,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1074 transitions, 10234 flow [2022-11-16 11:46:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-16 11:46:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-11-16 11:46:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 4473 transitions. [2022-11-16 11:46:21,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4011299435028249 [2022-11-16 11:46:21,690 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 4473 transitions. [2022-11-16 11:46:21,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 4473 transitions. [2022-11-16 11:46:21,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:21,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 4473 transitions. [2022-11-16 11:46:21,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 75.8135593220339) internal successors, (4473), 59 states have internal predecessors, (4473), 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) [2022-11-16 11:46:21,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 189.0) internal successors, (11340), 60 states have internal predecessors, (11340), 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) [2022-11-16 11:46:21,752 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 189.0) internal successors, (11340), 60 states have internal predecessors, (11340), 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) [2022-11-16 11:46:21,752 INFO L175 Difference]: Start difference. First operand has 296 places, 325 transitions, 1735 flow. Second operand 59 states and 4473 transitions. [2022-11-16 11:46:21,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1074 transitions, 10234 flow [2022-11-16 11:46:22,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1074 transitions, 9821 flow, removed 193 selfloop flow, removed 15 redundant places. [2022-11-16 11:46:22,447 INFO L231 Difference]: Finished difference. Result has 360 places, 672 transitions, 5704 flow [2022-11-16 11:46:22,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=1649, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=5704, PETRI_PLACES=360, PETRI_TRANSITIONS=672} [2022-11-16 11:46:22,448 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 190 predicate places. [2022-11-16 11:46:22,449 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 672 transitions, 5704 flow [2022-11-16 11:46:22,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 72.05555555555556) internal successors, (3891), 54 states have internal predecessors, (3891), 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) [2022-11-16 11:46:22,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:22,451 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:22,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:46:22,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:46:22,657 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:46:22,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:22,658 INFO L85 PathProgramCache]: Analyzing trace with hash 426467648, now seen corresponding path program 3 times [2022-11-16 11:46:22,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:22,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161766930] [2022-11-16 11:46:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:22,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:46:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:24,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161766930] [2022-11-16 11:46:24,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161766930] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:46:24,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630250281] [2022-11-16 11:46:24,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:46:24,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:46:24,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:46:24,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:46:25,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:46:25,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 11:46:25,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:46:25,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-16 11:46:25,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:46:27,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:46:27,634 INFO L321 Elim1Store]: treesize reduction 39, result has 7.1 percent of original size [2022-11-16 11:46:27,634 INFO L350 Elim1Store]: Elim1 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 42 treesize of output 13 [2022-11-16 11:46:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:46:27,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:46:28,506 INFO L321 Elim1Store]: treesize reduction 15, result has 83.9 percent of original size [2022-11-16 11:46:28,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 103 [2022-11-16 11:46:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:46:30,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630250281] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:46:30,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:46:30,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 18] total 53 [2022-11-16 11:46:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292978180] [2022-11-16 11:46:30,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:46:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-16 11:46:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-16 11:46:30,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=2195, Unknown=0, NotChecked=0, Total=2756 [2022-11-16 11:46:30,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 189 [2022-11-16 11:46:30,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 672 transitions, 5704 flow. Second operand has 53 states, 53 states have (on average 72.0377358490566) internal successors, (3818), 53 states have internal predecessors, (3818), 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) [2022-11-16 11:46:30,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:30,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 189 [2022-11-16 11:46:30,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:49,540 INFO L130 PetriNetUnfolder]: 19288/35050 cut-off events. [2022-11-16 11:46:49,540 INFO L131 PetriNetUnfolder]: For 1204089/1206450 co-relation queries the response was YES. [2022-11-16 11:46:49,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301393 conditions, 35050 events. 19288/35050 cut-off events. For 1204089/1206450 co-relation queries the response was YES. Maximal size of possible extension queue 1685. Compared 325923 event pairs, 2778 based on Foata normal form. 86/34987 useless extension candidates. Maximal degree in co-relation 301310. Up to 9900 conditions per place. [2022-11-16 11:46:50,293 INFO L137 encePairwiseOnDemand]: 146/189 looper letters, 954 selfloop transitions, 616 changer transitions 59/1686 dead transitions. [2022-11-16 11:46:50,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1686 transitions, 21441 flow [2022-11-16 11:46:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-16 11:46:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-11-16 11:46:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 3976 transitions. [2022-11-16 11:46:50,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4045584045584046 [2022-11-16 11:46:50,306 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 3976 transitions. [2022-11-16 11:46:50,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 3976 transitions. [2022-11-16 11:46:50,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:50,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 3976 transitions. [2022-11-16 11:46:50,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 76.46153846153847) internal successors, (3976), 52 states have internal predecessors, (3976), 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) [2022-11-16 11:46:50,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 189.0) internal successors, (10017), 53 states have internal predecessors, (10017), 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) [2022-11-16 11:46:50,341 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 189.0) internal successors, (10017), 53 states have internal predecessors, (10017), 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) [2022-11-16 11:46:50,341 INFO L175 Difference]: Start difference. First operand has 360 places, 672 transitions, 5704 flow. Second operand 52 states and 3976 transitions. [2022-11-16 11:46:50,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1686 transitions, 21441 flow [2022-11-16 11:47:00,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1686 transitions, 19904 flow, removed 746 selfloop flow, removed 23 redundant places. [2022-11-16 11:47:00,023 INFO L231 Difference]: Finished difference. Result has 401 places, 1074 transitions, 11445 flow [2022-11-16 11:47:00,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=5109, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=252, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=11445, PETRI_PLACES=401, PETRI_TRANSITIONS=1074} [2022-11-16 11:47:00,025 INFO L288 CegarLoopForPetriNet]: 170 programPoint places, 231 predicate places. [2022-11-16 11:47:00,025 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 1074 transitions, 11445 flow [2022-11-16 11:47:00,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 72.0377358490566) internal successors, (3818), 53 states have internal predecessors, (3818), 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) [2022-11-16 11:47:00,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:00,027 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:00,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:47:00,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:47:00,234 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:47:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:00,234 INFO L85 PathProgramCache]: Analyzing trace with hash -153485192, now seen corresponding path program 4 times [2022-11-16 11:47:00,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:00,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786222469] [2022-11-16 11:47:00,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:00,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:47:02,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:02,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786222469] [2022-11-16 11:47:02,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786222469] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:47:02,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986912172] [2022-11-16 11:47:02,398 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 11:47:02,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:47:02,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:47:02,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:47:02,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bda62943-8ddb-4c45-937f-7652d4475cab/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:47:02,636 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 11:47:02,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:47:02,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-16 11:47:02,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:47:02,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:47:02,689 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 11:47:02,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-16 11:47:03,202 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-16 11:47:03,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:47:03,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:47:04,796 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-16 11:47:04,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 25 [2022-11-16 11:47:05,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:47:05,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:47:05,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:47:06,511 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-16 11:47:06,512 INFO L350 Elim1Store]: Elim1 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 42 treesize of output 10 [2022-11-16 11:47:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:06,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:47:11,900 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:47:11,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 90 [2022-11-16 11:47:12,018 INFO L321 Elim1Store]: treesize reduction 9, result has 82.4 percent of original size [2022-11-16 11:47:12,020 INFO L350 Elim1Store]: Elim1 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 442348 treesize of output 409621 [2022-11-16 11:47:14,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:47:14,775 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:47:14,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 409580 treesize of output 385036 [2022-11-16 11:47:16,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:47:16,141 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:47:16,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 385004 treesize of output 286732 [2022-11-16 11:47:17,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:47:17,519 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:47:17,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 286700 treesize of output 237580