./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8 --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 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- 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-2329fc7 [2022-12-13 19:07:53,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:07:53,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:07:53,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:07:53,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:07:53,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:07:53,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:07:53,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:07:53,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:07:53,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:07:53,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:07:53,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:07:53,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:07:53,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:07:53,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:07:53,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:07:53,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:07:53,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:07:53,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:07:53,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:07:53,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:07:53,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:07:53,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:07:53,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:07:53,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:07:53,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:07:53,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:07:53,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:07:53,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:07:53,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:07:53,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:07:53,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:07:53,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:07:53,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:07:53,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:07:53,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:07:53,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:07:53,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:07:53,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:07:53,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:07:53,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:07:53,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 19:07:53,621 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:07:53,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:07:53,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:07:53,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:07:53,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:07:53,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:07:53,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:07:53,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:07:53,623 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:07:53,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:07:53,624 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:07:53,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:07:53,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:07:53,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:07:53,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:07:53,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:07:53,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:07:53,625 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:07:53,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:07:53,626 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:07:53,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:07:53,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:07:53,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:07:53,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:07:53,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:07:53,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:07:53,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:07:53,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:07:53,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:07:53,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:07:53,628 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:07:53,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:07:53,628 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:07:53,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:07:53,628 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:07:53,629 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2022-12-13 19:07:53,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:07:53,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:07:53,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:07:53,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:07:53,845 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:07:53,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-12-13 19:07:56,444 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:07:56,628 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:07:56,628 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-12-13 19:07:56,635 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/data/c52f6899e/213415497cc0441e8db0819fcd73f2d2/FLAGbbefe0071 [2022-12-13 19:07:56,646 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/data/c52f6899e/213415497cc0441e8db0819fcd73f2d2 [2022-12-13 19:07:56,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:07:56,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:07:56,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:07:56,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:07:56,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:07:56,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183621c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56, skipping insertion in model container [2022-12-13 19:07:56,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:07:56,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:07:56,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:07:56,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:07:56,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:07:56,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:07:56,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:07:56,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:07:56,806 WARN L237 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_bc32e828-6ce8-42c7-b809-e02b1ec088c0/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-12-13 19:07:56,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:07:56,821 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:07:56,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:07:56,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:07:56,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:07:56,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:07:56,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:07:56,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:07:56,841 WARN L237 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_bc32e828-6ce8-42c7-b809-e02b1ec088c0/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-12-13 19:07:56,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:07:56,855 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:07:56,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56 WrapperNode [2022-12-13 19:07:56,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:07:56,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:07:56,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:07:56,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:07:56,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,890 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 232 [2022-12-13 19:07:56,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:07:56,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:07:56,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:07:56,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:07:56,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,912 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:07:56,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:07:56,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:07:56,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:07:56,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (1/1) ... [2022-12-13 19:07:56,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:07:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:07:56,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:07:56,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:07:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:07:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:07:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:07:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:07:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 19:07:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 19:07:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 19:07:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 19:07:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 19:07:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 19:07:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:07:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:07:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:07:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:07:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:07:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:07:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:07:56,985 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:07:57,080 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:07:57,082 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:07:57,437 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:07:57,502 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:07:57,502 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 19:07:57,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:07:57 BoogieIcfgContainer [2022-12-13 19:07:57,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:07:57,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:07:57,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:07:57,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:07:57,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:07:56" (1/3) ... [2022-12-13 19:07:57,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744c2e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:07:57, skipping insertion in model container [2022-12-13 19:07:57,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:07:56" (2/3) ... [2022-12-13 19:07:57,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744c2e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:07:57, skipping insertion in model container [2022-12-13 19:07:57,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:07:57" (3/3) ... [2022-12-13 19:07:57,515 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2022-12-13 19:07:57,524 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:07:57,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:07:57,533 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:07:57,533 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:07:57,600 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 19:07:57,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 315 transitions, 654 flow [2022-12-13 19:07:57,744 INFO L130 PetriNetUnfolder]: 27/312 cut-off events. [2022-12-13 19:07:57,744 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:07:57,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 312 events. 27/312 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 212 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 244. Up to 3 conditions per place. [2022-12-13 19:07:57,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 315 transitions, 654 flow [2022-12-13 19:07:57,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 301 transitions, 620 flow [2022-12-13 19:07:57,761 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:07:57,771 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 301 transitions, 620 flow [2022-12-13 19:07:57,774 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 301 transitions, 620 flow [2022-12-13 19:07:57,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 301 transitions, 620 flow [2022-12-13 19:07:57,822 INFO L130 PetriNetUnfolder]: 27/301 cut-off events. [2022-12-13 19:07:57,822 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:07:57,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 301 events. 27/301 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 211 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 244. Up to 3 conditions per place. [2022-12-13 19:07:57,824 INFO L119 LiptonReduction]: Number of co-enabled transitions 2634 [2022-12-13 19:08:04,755 INFO L134 LiptonReduction]: Checked pairs total: 4309 [2022-12-13 19:08:04,755 INFO L136 LiptonReduction]: Total number of compositions: 324 [2022-12-13 19:08:04,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:08:04,771 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;@1d3eff5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:08:04,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 19:08:04,775 INFO L130 PetriNetUnfolder]: 8/34 cut-off events. [2022-12-13 19:08:04,775 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:08:04,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:04,776 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] [2022-12-13 19:08:04,776 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:04,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:04,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1491257318, now seen corresponding path program 1 times [2022-12-13 19:08:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:04,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141395662] [2022-12-13 19:08:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:05,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:05,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141395662] [2022-12-13 19:08:05,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141395662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:05,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:05,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:08:05,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748731184] [2022-12-13 19:08:05,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:05,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:08:05,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:05,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:08:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:08:05,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 639 [2022-12-13 19:08:05,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 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) [2022-12-13 19:08:05,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:05,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 639 [2022-12-13 19:08:05,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:05,359 INFO L130 PetriNetUnfolder]: 765/1028 cut-off events. [2022-12-13 19:08:05,359 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-13 19:08:05,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 1028 events. 765/1028 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3613 event pairs, 352 based on Foata normal form. 0/594 useless extension candidates. Maximal degree in co-relation 1824. Up to 1002 conditions per place. [2022-12-13 19:08:05,364 INFO L137 encePairwiseOnDemand]: 636/639 looper letters, 31 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2022-12-13 19:08:05,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 156 flow [2022-12-13 19:08:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:08:05,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:08:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 862 transitions. [2022-12-13 19:08:05,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44966092853416795 [2022-12-13 19:08:05,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 862 transitions. [2022-12-13 19:08:05,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 862 transitions. [2022-12-13 19:08:05,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:05,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 862 transitions. [2022-12-13 19:08:05,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 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) [2022-12-13 19:08:05,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 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) [2022-12-13 19:08:05,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 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) [2022-12-13 19:08:05,393 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 88 flow. Second operand 3 states and 862 transitions. [2022-12-13 19:08:05,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 156 flow [2022-12-13 19:08:05,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 19:08:05,399 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 88 flow [2022-12-13 19:08:05,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2022-12-13 19:08:05,403 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2022-12-13 19:08:05,403 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 36 transitions, 88 flow [2022-12-13 19:08:05,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 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) [2022-12-13 19:08:05,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:05,404 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] [2022-12-13 19:08:05,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:08:05,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:05,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1110097203, now seen corresponding path program 1 times [2022-12-13 19:08:05,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:05,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579431894] [2022-12-13 19:08:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:08:05,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:05,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579431894] [2022-12-13 19:08:05,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579431894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:05,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:05,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:08:05,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488282050] [2022-12-13 19:08:05,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:05,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:08:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:08:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:08:05,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 639 [2022-12-13 19:08:05,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:05,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:05,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 639 [2022-12-13 19:08:05,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:05,722 INFO L130 PetriNetUnfolder]: 765/1030 cut-off events. [2022-12-13 19:08:05,722 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:08:05,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2072 conditions, 1030 events. 765/1030 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3642 event pairs, 352 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 2061. Up to 1001 conditions per place. [2022-12-13 19:08:05,726 INFO L137 encePairwiseOnDemand]: 632/639 looper letters, 29 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2022-12-13 19:08:05,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 162 flow [2022-12-13 19:08:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:08:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:08:05,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1133 transitions. [2022-12-13 19:08:05,729 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44327073552425666 [2022-12-13 19:08:05,729 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1133 transitions. [2022-12-13 19:08:05,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1133 transitions. [2022-12-13 19:08:05,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:05,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1133 transitions. [2022-12-13 19:08:05,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 283.25) internal successors, (1133), 4 states have internal predecessors, (1133), 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) [2022-12-13 19:08:05,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 639.0) internal successors, (3195), 5 states have internal predecessors, (3195), 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) [2022-12-13 19:08:05,735 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 639.0) internal successors, (3195), 5 states have internal predecessors, (3195), 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) [2022-12-13 19:08:05,735 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 88 flow. Second operand 4 states and 1133 transitions. [2022-12-13 19:08:05,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 162 flow [2022-12-13 19:08:05,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 158 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 19:08:05,736 INFO L231 Difference]: Finished difference. Result has 37 places, 38 transitions, 112 flow [2022-12-13 19:08:05,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=37, PETRI_TRANSITIONS=38} [2022-12-13 19:08:05,737 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2022-12-13 19:08:05,737 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 38 transitions, 112 flow [2022-12-13 19:08:05,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:05,738 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:05,738 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] [2022-12-13 19:08:05,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:08:05,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:05,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:05,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1620985194, now seen corresponding path program 1 times [2022-12-13 19:08:05,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:05,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854447497] [2022-12-13 19:08:05,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:05,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 19:08:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854447497] [2022-12-13 19:08:05,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854447497] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:05,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:05,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:08:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896696260] [2022-12-13 19:08:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:08:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:08:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:08:06,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 639 [2022-12-13 19:08:06,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 38 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 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) [2022-12-13 19:08:06,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:06,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 639 [2022-12-13 19:08:06,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:06,187 INFO L130 PetriNetUnfolder]: 1363/1808 cut-off events. [2022-12-13 19:08:06,187 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 19:08:06,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3661 conditions, 1808 events. 1363/1808 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7122 event pairs, 258 based on Foata normal form. 1/1076 useless extension candidates. Maximal degree in co-relation 3641. Up to 1165 conditions per place. [2022-12-13 19:08:06,192 INFO L137 encePairwiseOnDemand]: 634/639 looper letters, 52 selfloop transitions, 4 changer transitions 1/60 dead transitions. [2022-12-13 19:08:06,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 60 transitions, 275 flow [2022-12-13 19:08:06,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:08:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:08:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 895 transitions. [2022-12-13 19:08:06,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4668753260302556 [2022-12-13 19:08:06,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 895 transitions. [2022-12-13 19:08:06,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 895 transitions. [2022-12-13 19:08:06,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:06,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 895 transitions. [2022-12-13 19:08:06,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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) [2022-12-13 19:08:06,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 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) [2022-12-13 19:08:06,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 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) [2022-12-13 19:08:06,199 INFO L175 Difference]: Start difference. First operand has 37 places, 38 transitions, 112 flow. Second operand 3 states and 895 transitions. [2022-12-13 19:08:06,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 60 transitions, 275 flow [2022-12-13 19:08:06,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:08:06,200 INFO L231 Difference]: Finished difference. Result has 39 places, 41 transitions, 137 flow [2022-12-13 19:08:06,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=39, PETRI_TRANSITIONS=41} [2022-12-13 19:08:06,200 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2022-12-13 19:08:06,201 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 41 transitions, 137 flow [2022-12-13 19:08:06,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 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) [2022-12-13 19:08:06,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:06,201 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] [2022-12-13 19:08:06,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:08:06,201 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:06,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:06,202 INFO L85 PathProgramCache]: Analyzing trace with hash 389943842, now seen corresponding path program 1 times [2022-12-13 19:08:06,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:06,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330924811] [2022-12-13 19:08:06,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:06,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:08:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:06,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330924811] [2022-12-13 19:08:06,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330924811] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:06,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807927348] [2022-12-13 19:08:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:06,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:06,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:06,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:06,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:08:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:06,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:08:06,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:08:06,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:06,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:08:06,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807927348] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:08:06,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:08:06,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 19:08:06,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718387765] [2022-12-13 19:08:06,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:08:06,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 19:08:06,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 19:08:06,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:08:06,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 19:08:06,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 41 transitions, 137 flow. Second operand has 12 states, 12 states have (on average 266.9166666666667) internal successors, (3203), 12 states have internal predecessors, (3203), 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) [2022-12-13 19:08:06,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:06,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 19:08:06,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:07,418 INFO L130 PetriNetUnfolder]: 2869/4001 cut-off events. [2022-12-13 19:08:07,418 INFO L131 PetriNetUnfolder]: For 345/345 co-relation queries the response was YES. [2022-12-13 19:08:07,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8790 conditions, 4001 events. 2869/4001 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 19487 event pairs, 921 based on Foata normal form. 0/2801 useless extension candidates. Maximal degree in co-relation 4938. Up to 1369 conditions per place. [2022-12-13 19:08:07,432 INFO L137 encePairwiseOnDemand]: 628/639 looper letters, 132 selfloop transitions, 21 changer transitions 0/155 dead transitions. [2022-12-13 19:08:07,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 155 transitions, 783 flow [2022-12-13 19:08:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:08:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 19:08:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2784 transitions. [2022-12-13 19:08:07,445 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4356807511737089 [2022-12-13 19:08:07,445 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2784 transitions. [2022-12-13 19:08:07,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2784 transitions. [2022-12-13 19:08:07,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:07,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2784 transitions. [2022-12-13 19:08:07,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 278.4) internal successors, (2784), 10 states have internal predecessors, (2784), 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) [2022-12-13 19:08:07,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 639.0) internal successors, (7029), 11 states have internal predecessors, (7029), 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) [2022-12-13 19:08:07,458 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 639.0) internal successors, (7029), 11 states have internal predecessors, (7029), 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) [2022-12-13 19:08:07,458 INFO L175 Difference]: Start difference. First operand has 39 places, 41 transitions, 137 flow. Second operand 10 states and 2784 transitions. [2022-12-13 19:08:07,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 155 transitions, 783 flow [2022-12-13 19:08:07,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 155 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:08:07,461 INFO L231 Difference]: Finished difference. Result has 52 places, 56 transitions, 286 flow [2022-12-13 19:08:07,461 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=286, PETRI_PLACES=52, PETRI_TRANSITIONS=56} [2022-12-13 19:08:07,462 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 15 predicate places. [2022-12-13 19:08:07,462 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 56 transitions, 286 flow [2022-12-13 19:08:07,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 266.9166666666667) internal successors, (3203), 12 states have internal predecessors, (3203), 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) [2022-12-13 19:08:07,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:07,463 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] [2022-12-13 19:08:07,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:07,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:07,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:07,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:07,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1424596093, now seen corresponding path program 1 times [2022-12-13 19:08:07,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:07,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820204114] [2022-12-13 19:08:07,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:07,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:08:07,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:07,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820204114] [2022-12-13 19:08:07,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820204114] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:07,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807800348] [2022-12-13 19:08:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:07,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:07,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:07,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:07,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:08:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:07,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:08:07,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:08:07,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 19:08:07,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807800348] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:08:07,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:08:07,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 19:08:07,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331192983] [2022-12-13 19:08:07,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:08:07,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 19:08:07,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 19:08:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:08:08,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 19:08:08,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 56 transitions, 286 flow. Second operand has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 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) [2022-12-13 19:08:08,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:08,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 19:08:08,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:08,747 INFO L130 PetriNetUnfolder]: 1579/2226 cut-off events. [2022-12-13 19:08:08,747 INFO L131 PetriNetUnfolder]: For 569/618 co-relation queries the response was YES. [2022-12-13 19:08:08,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5650 conditions, 2226 events. 1579/2226 cut-off events. For 569/618 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 9535 event pairs, 608 based on Foata normal form. 38/1615 useless extension candidates. Maximal degree in co-relation 4643. Up to 1281 conditions per place. [2022-12-13 19:08:08,756 INFO L137 encePairwiseOnDemand]: 628/639 looper letters, 44 selfloop transitions, 10 changer transitions 38/94 dead transitions. [2022-12-13 19:08:08,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 94 transitions, 585 flow [2022-12-13 19:08:08,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:08:08,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 19:08:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2197 transitions. [2022-12-13 19:08:08,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42977308294209704 [2022-12-13 19:08:08,761 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2197 transitions. [2022-12-13 19:08:08,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2197 transitions. [2022-12-13 19:08:08,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:08,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2197 transitions. [2022-12-13 19:08:08,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 274.625) internal successors, (2197), 8 states have internal predecessors, (2197), 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) [2022-12-13 19:08:08,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 639.0) internal successors, (5751), 9 states have internal predecessors, (5751), 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) [2022-12-13 19:08:08,771 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 639.0) internal successors, (5751), 9 states have internal predecessors, (5751), 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) [2022-12-13 19:08:08,772 INFO L175 Difference]: Start difference. First operand has 52 places, 56 transitions, 286 flow. Second operand 8 states and 2197 transitions. [2022-12-13 19:08:08,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 94 transitions, 585 flow [2022-12-13 19:08:08,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 94 transitions, 563 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-12-13 19:08:08,776 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 214 flow [2022-12-13 19:08:08,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-12-13 19:08:08,776 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 23 predicate places. [2022-12-13 19:08:08,777 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 214 flow [2022-12-13 19:08:08,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 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) [2022-12-13 19:08:08,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:08,778 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:08,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:08:08,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:08,979 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -69865098, now seen corresponding path program 2 times [2022-12-13 19:08:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:08,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52718295] [2022-12-13 19:08:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 19:08:09,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:09,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52718295] [2022-12-13 19:08:09,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52718295] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:09,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710568502] [2022-12-13 19:08:09,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:08:09,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:09,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:09,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:09,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:08:09,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:08:09,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:08:09,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:08:09,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 19:08:09,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:09,349 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 19:08:09,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710568502] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:09,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:08:09,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2022-12-13 19:08:09,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407896296] [2022-12-13 19:08:09,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:09,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:08:09,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:09,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:08:09,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:08:09,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 19:08:09,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 268.3333333333333) internal successors, (1610), 6 states have internal predecessors, (1610), 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) [2022-12-13 19:08:09,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:09,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 19:08:09,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:09,732 INFO L130 PetriNetUnfolder]: 1560/2140 cut-off events. [2022-12-13 19:08:09,733 INFO L131 PetriNetUnfolder]: For 855/881 co-relation queries the response was YES. [2022-12-13 19:08:09,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6027 conditions, 2140 events. 1560/2140 cut-off events. For 855/881 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 8855 event pairs, 662 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 6004. Up to 1592 conditions per place. [2022-12-13 19:08:09,745 INFO L137 encePairwiseOnDemand]: 634/639 looper letters, 57 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2022-12-13 19:08:09,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 409 flow [2022-12-13 19:08:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:08:09,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:08:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1637 transitions. [2022-12-13 19:08:09,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4269692227438706 [2022-12-13 19:08:09,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1637 transitions. [2022-12-13 19:08:09,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1637 transitions. [2022-12-13 19:08:09,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:09,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1637 transitions. [2022-12-13 19:08:09,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.8333333333333) internal successors, (1637), 6 states have internal predecessors, (1637), 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) [2022-12-13 19:08:09,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 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) [2022-12-13 19:08:09,760 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 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) [2022-12-13 19:08:09,760 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 214 flow. Second operand 6 states and 1637 transitions. [2022-12-13 19:08:09,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 409 flow [2022-12-13 19:08:09,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 64 transitions, 357 flow, removed 16 selfloop flow, removed 8 redundant places. [2022-12-13 19:08:09,765 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 193 flow [2022-12-13 19:08:09,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2022-12-13 19:08:09,766 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 13 predicate places. [2022-12-13 19:08:09,766 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 193 flow [2022-12-13 19:08:09,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.3333333333333) internal successors, (1610), 6 states have internal predecessors, (1610), 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) [2022-12-13 19:08:09,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:09,767 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:09,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:09,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 19:08:09,967 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:09,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1379061004, now seen corresponding path program 1 times [2022-12-13 19:08:09,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:09,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295232811] [2022-12-13 19:08:09,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:09,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 19:08:10,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:10,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295232811] [2022-12-13 19:08:10,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295232811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:10,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:10,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:08:10,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275780933] [2022-12-13 19:08:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:10,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:08:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:08:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:08:10,115 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 639 [2022-12-13 19:08:10,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 285.4) internal successors, (1427), 5 states have internal predecessors, (1427), 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) [2022-12-13 19:08:10,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:10,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 639 [2022-12-13 19:08:10,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:10,478 INFO L130 PetriNetUnfolder]: 2427/3290 cut-off events. [2022-12-13 19:08:10,478 INFO L131 PetriNetUnfolder]: For 1455/1455 co-relation queries the response was YES. [2022-12-13 19:08:10,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8492 conditions, 3290 events. 2427/3290 cut-off events. For 1455/1455 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 14062 event pairs, 583 based on Foata normal form. 30/2670 useless extension candidates. Maximal degree in co-relation 8456. Up to 1418 conditions per place. [2022-12-13 19:08:10,492 INFO L137 encePairwiseOnDemand]: 634/639 looper letters, 78 selfloop transitions, 4 changer transitions 13/96 dead transitions. [2022-12-13 19:08:10,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 96 transitions, 540 flow [2022-12-13 19:08:10,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:08:10,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:08:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1481 transitions. [2022-12-13 19:08:10,494 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46353677621283257 [2022-12-13 19:08:10,494 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1481 transitions. [2022-12-13 19:08:10,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1481 transitions. [2022-12-13 19:08:10,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:10,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1481 transitions. [2022-12-13 19:08:10,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 296.2) internal successors, (1481), 5 states have internal predecessors, (1481), 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) [2022-12-13 19:08:10,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 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) [2022-12-13 19:08:10,500 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 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) [2022-12-13 19:08:10,500 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 193 flow. Second operand 5 states and 1481 transitions. [2022-12-13 19:08:10,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 96 transitions, 540 flow [2022-12-13 19:08:10,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 522 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 19:08:10,508 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 212 flow [2022-12-13 19:08:10,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2022-12-13 19:08:10,508 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2022-12-13 19:08:10,508 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 212 flow [2022-12-13 19:08:10,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 285.4) internal successors, (1427), 5 states have internal predecessors, (1427), 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) [2022-12-13 19:08:10,509 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:10,509 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:10,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:08:10,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:10,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash 540523594, now seen corresponding path program 2 times [2022-12-13 19:08:10,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:10,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941108797] [2022-12-13 19:08:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:10,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 19:08:10,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:10,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941108797] [2022-12-13 19:08:10,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941108797] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:10,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806408194] [2022-12-13 19:08:10,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:08:10,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:10,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:10,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:10,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:08:10,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:08:10,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:08:10,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:08:10,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 19:08:10,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 19:08:10,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806408194] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:10,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:08:10,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2022-12-13 19:08:10,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061807360] [2022-12-13 19:08:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:10,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:08:10,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:10,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:08:10,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:08:11,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 19:08:11,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 268.5) internal successors, (1611), 6 states have internal predecessors, (1611), 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) [2022-12-13 19:08:11,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:11,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 19:08:11,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:11,388 INFO L130 PetriNetUnfolder]: 1540/2074 cut-off events. [2022-12-13 19:08:11,389 INFO L131 PetriNetUnfolder]: For 1277/1435 co-relation queries the response was YES. [2022-12-13 19:08:11,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5473 conditions, 2074 events. 1540/2074 cut-off events. For 1277/1435 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7783 event pairs, 478 based on Foata normal form. 209/1838 useless extension candidates. Maximal degree in co-relation 5437. Up to 1509 conditions per place. [2022-12-13 19:08:11,399 INFO L137 encePairwiseOnDemand]: 632/639 looper letters, 50 selfloop transitions, 9 changer transitions 0/61 dead transitions. [2022-12-13 19:08:11,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 61 transitions, 366 flow [2022-12-13 19:08:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:08:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:08:11,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1633 transitions. [2022-12-13 19:08:11,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2022-12-13 19:08:11,401 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1633 transitions. [2022-12-13 19:08:11,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1633 transitions. [2022-12-13 19:08:11,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:11,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1633 transitions. [2022-12-13 19:08:11,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.1666666666667) internal successors, (1633), 6 states have internal predecessors, (1633), 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) [2022-12-13 19:08:11,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 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) [2022-12-13 19:08:11,407 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 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) [2022-12-13 19:08:11,407 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 212 flow. Second operand 6 states and 1633 transitions. [2022-12-13 19:08:11,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 61 transitions, 366 flow [2022-12-13 19:08:11,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 355 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 19:08:11,412 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 228 flow [2022-12-13 19:08:11,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2022-12-13 19:08:11,412 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 18 predicate places. [2022-12-13 19:08:11,412 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 228 flow [2022-12-13 19:08:11,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.5) internal successors, (1611), 6 states have internal predecessors, (1611), 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) [2022-12-13 19:08:11,413 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:11,413 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:11,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 19:08:11,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:11,614 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:11,614 INFO L85 PathProgramCache]: Analyzing trace with hash 719615403, now seen corresponding path program 1 times [2022-12-13 19:08:11,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:11,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466800936] [2022-12-13 19:08:11,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:11,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 19:08:11,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:11,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466800936] [2022-12-13 19:08:11,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466800936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:11,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:11,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:08:11,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680951020] [2022-12-13 19:08:11,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:11,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:08:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:11,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:08:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:08:11,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 639 [2022-12-13 19:08:11,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 283.6) internal successors, (1418), 5 states have internal predecessors, (1418), 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) [2022-12-13 19:08:11,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:11,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 639 [2022-12-13 19:08:11,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:12,127 INFO L130 PetriNetUnfolder]: 2212/3038 cut-off events. [2022-12-13 19:08:12,127 INFO L131 PetriNetUnfolder]: For 2248/2498 co-relation queries the response was YES. [2022-12-13 19:08:12,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8300 conditions, 3038 events. 2212/3038 cut-off events. For 2248/2498 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12271 event pairs, 688 based on Foata normal form. 286/2727 useless extension candidates. Maximal degree in co-relation 8262. Up to 1606 conditions per place. [2022-12-13 19:08:12,139 INFO L137 encePairwiseOnDemand]: 630/639 looper letters, 86 selfloop transitions, 13 changer transitions 0/100 dead transitions. [2022-12-13 19:08:12,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 100 transitions, 625 flow [2022-12-13 19:08:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:08:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:08:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1467 transitions. [2022-12-13 19:08:12,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4591549295774648 [2022-12-13 19:08:12,142 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1467 transitions. [2022-12-13 19:08:12,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1467 transitions. [2022-12-13 19:08:12,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:12,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1467 transitions. [2022-12-13 19:08:12,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 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) [2022-12-13 19:08:12,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 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) [2022-12-13 19:08:12,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 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) [2022-12-13 19:08:12,149 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 228 flow. Second operand 5 states and 1467 transitions. [2022-12-13 19:08:12,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 100 transitions, 625 flow [2022-12-13 19:08:12,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 100 transitions, 606 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:08:12,157 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 331 flow [2022-12-13 19:08:12,157 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=331, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2022-12-13 19:08:12,157 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 21 predicate places. [2022-12-13 19:08:12,157 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 331 flow [2022-12-13 19:08:12,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.6) internal successors, (1418), 5 states have internal predecessors, (1418), 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) [2022-12-13 19:08:12,158 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:12,158 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:12,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:08:12,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:12,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:12,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1923590419, now seen corresponding path program 2 times [2022-12-13 19:08:12,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:12,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426807275] [2022-12-13 19:08:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:12,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 19:08:12,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:12,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426807275] [2022-12-13 19:08:12,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426807275] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:12,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268957373] [2022-12-13 19:08:12,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:08:12,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:12,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:12,300 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:12,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:08:12,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:08:12,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:08:12,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:08:12,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 19:08:12,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:08:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 19:08:12,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268957373] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:12,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:08:12,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2022-12-13 19:08:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383526349] [2022-12-13 19:08:12,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:12,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:08:12,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:12,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:08:12,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:08:12,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 19:08:12,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 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) [2022-12-13 19:08:12,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:12,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 19:08:12,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:12,993 INFO L130 PetriNetUnfolder]: 2098/2848 cut-off events. [2022-12-13 19:08:12,993 INFO L131 PetriNetUnfolder]: For 2661/2944 co-relation queries the response was YES. [2022-12-13 19:08:12,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8831 conditions, 2848 events. 2098/2848 cut-off events. For 2661/2944 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11123 event pairs, 529 based on Foata normal form. 443/2656 useless extension candidates. Maximal degree in co-relation 8792. Up to 1666 conditions per place. [2022-12-13 19:08:13,004 INFO L137 encePairwiseOnDemand]: 632/639 looper letters, 66 selfloop transitions, 12 changer transitions 0/81 dead transitions. [2022-12-13 19:08:13,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 81 transitions, 583 flow [2022-12-13 19:08:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:08:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:08:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2022-12-13 19:08:13,007 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42670839853938447 [2022-12-13 19:08:13,007 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2022-12-13 19:08:13,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2022-12-13 19:08:13,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:13,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2022-12-13 19:08:13,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 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) [2022-12-13 19:08:13,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 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) [2022-12-13 19:08:13,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 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) [2022-12-13 19:08:13,012 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 331 flow. Second operand 6 states and 1636 transitions. [2022-12-13 19:08:13,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 81 transitions, 583 flow [2022-12-13 19:08:13,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 579 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-13 19:08:13,018 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 384 flow [2022-12-13 19:08:13,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=384, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2022-12-13 19:08:13,019 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 28 predicate places. [2022-12-13 19:08:13,019 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 384 flow [2022-12-13 19:08:13,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 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) [2022-12-13 19:08:13,020 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:13,020 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:13,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 19:08:13,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 19:08:13,222 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 19:08:13,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash -107963151, now seen corresponding path program 1 times [2022-12-13 19:08:13,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:13,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379766030] [2022-12-13 19:08:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 19:08:15,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:15,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379766030] [2022-12-13 19:08:15,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379766030] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:08:15,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909731444] [2022-12-13 19:08:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:15,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:08:15,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:15,411 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:08:15,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc32e828-6ce8-42c7-b809-e02b1ec088c0/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:08:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:15,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-13 19:08:15,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:08:15,622 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 [2022-12-13 19:08:15,697 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 19:08:15,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2022-12-13 19:08:15,812 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:08:15,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2022-12-13 19:08:16,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:08:16,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 19:08:16,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:08:16,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:08:16,456 INFO L321 Elim1Store]: treesize reduction 31, result has 40.4 percent of original size [2022-12-13 19:08:16,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 48 [2022-12-13 19:08:16,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:08:16,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:08:16,928 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-12-13 19:08:16,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 150 treesize of output 163 [2022-12-13 19:08:19,128 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:08:19,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 340 treesize of output 892 [2022-12-13 19:08:45,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 19:08:46,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 19:08:47,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 19:08:51,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 19:09:03,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 19:09:03,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 19:09:04,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 19:09:04,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-12-13 19:09:04,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 19:09:04,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 84 [2022-12-13 19:09:04,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2022-12-13 19:09:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 19:09:04,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:09:05,087 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~C~0.offset 4)) (.cse0 (<= c_~maxb~0 |c_thread1Thread1of1ForFork2_#t~mem4|))) (and (or (not .cse0) (let ((.cse3 (+ (* c_thread1Thread1of1ForFork2_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_581 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581))) (<= (select (select .cse1 c_~C~0.base) .cse2) (+ (select (select .cse1 c_~B~0.base) .cse3) c_~maxa~0)))) (forall ((v_ArrVal_581 (Array Int Int))) (<= c_~maxc~0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~B~0.base) .cse3) c_~maxa~0)))))) (or (let ((.cse4 (+ c_~maxa~0 c_~maxb~0))) (and (<= c_~maxc~0 .cse4) (forall ((v_ArrVal_581 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~C~0.base) .cse2) .cse4)))) .cse0))) is different from false [2022-12-13 19:09:25,742 WARN L233 SmtUtils]: Spent 18.16s on a formula simplification that was a NOOP. DAG size: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 19:09:37,191 WARN L233 SmtUtils]: Spent 10.98s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 19:09:37,321 WARN L837 $PredicateComparison]: unable to prove that (or (let ((.cse3 (+ 4 c_~B~0.offset)) (.cse4 (+ c_~A~0.offset 4)) (.cse1 (+ (* c_thread1Thread1of1ForFork2_~i~0 4) c_~B~0.offset)) (.cse8 (+ c_~maxa~0 c_~maxb~0))) (and (forall ((v_ArrVal_578 (Array Int Int)) (v_ArrVal_579 Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (forall ((~C~0.offset Int)) (let ((.cse0 (store .cse2 c_~C~0.base (store (select .cse2 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_579)))) (or (not (<= c_~maxb~0 (select (select .cse0 c_~B~0.base) .cse1))) (forall ((v_ArrVal_581 (Array Int Int))) (<= c_~maxc~0 (+ c_~maxa~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~B~0.base) .cse1))))))) (< (+ (select (select .cse2 c_~B~0.base) .cse3) (select (select .cse2 c_~A~0.base) .cse4)) v_ArrVal_579)))) (forall ((v_ArrVal_578 (Array Int Int)) (v_ArrVal_579 Int)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (< (+ (select (select .cse5 c_~B~0.base) .cse3) (select (select .cse5 c_~A~0.base) .cse4)) v_ArrVal_579) (forall ((~C~0.offset Int)) (let ((.cse7 (+ ~C~0.offset 4))) (let ((.cse6 (store .cse5 c_~C~0.base (store (select .cse5 c_~C~0.base) .cse7 v_ArrVal_579)))) (or (<= c_~maxb~0 (select (select .cse6 c_~B~0.base) .cse1)) (forall ((v_ArrVal_581 (Array Int Int))) (<= (select (select (store .cse6 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~C~0.base) .cse7) .cse8))))))))) (forall ((v_ArrVal_578 (Array Int Int)) (v_ArrVal_579 Int)) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (< (+ (select (select .cse9 c_~B~0.base) .cse3) (select (select .cse9 c_~A~0.base) .cse4)) v_ArrVal_579) (forall ((~C~0.offset Int)) (let ((.cse12 (+ ~C~0.offset 4))) (let ((.cse10 (store .cse9 c_~C~0.base (store (select .cse9 c_~C~0.base) .cse12 v_ArrVal_579)))) (or (not (<= c_~maxb~0 (select (select .cse10 c_~B~0.base) .cse1))) (forall ((v_ArrVal_581 (Array Int Int))) (let ((.cse11 (store .cse10 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581))) (<= (select (select .cse11 c_~C~0.base) .cse12) (+ c_~maxa~0 (select (select .cse11 c_~B~0.base) .cse1)))))))))))) (or (forall ((v_ArrVal_578 (Array Int Int)) (~C~0.offset Int) (v_ArrVal_579 Int)) (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (< (+ (select (select .cse13 c_~B~0.base) .cse3) (select (select .cse13 c_~A~0.base) .cse4)) v_ArrVal_579) (<= c_~maxb~0 (select (select (store .cse13 c_~C~0.base (store (select .cse13 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_579)) c_~B~0.base) .cse1))))) (<= c_~maxc~0 .cse8)))) (<= c_~maxa~0 |c_thread1Thread1of1ForFork2_#t~mem2|)) is different from false [2022-12-13 19:09:37,412 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:09:37,413 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 10913 treesize of output 10655 [2022-12-13 19:09:37,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10619 treesize of output 10235 [2022-12-13 19:09:37,584 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:09:37,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10671 treesize of output 10448 [2022-12-13 19:09:37,711 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:09:37,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10495 treesize of output 10464 [2022-12-13 19:09:37,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:09:37,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10471 treesize of output 10464 [2022-12-13 19:09:37,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:09:38,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10431 treesize of output 9166 [2022-12-13 19:09:38,169 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:09:38,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9907 treesize of output 9492 [2022-12-13 19:09:38,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9459 treesize of output 9451