./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:13:45,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:13:45,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:13:45,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:13:45,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:13:45,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:13:45,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:13:45,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:13:45,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:13:45,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:13:45,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:13:45,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:13:45,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:13:45,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:13:45,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:13:45,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:13:45,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:13:45,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:13:45,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:13:45,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:13:45,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:13:45,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:13:45,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:13:45,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:13:45,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:13:45,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:13:45,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:13:45,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:13:45,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:13:45,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:13:45,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:13:45,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:13:45,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:13:45,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:13:45,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:13:45,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:13:45,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:13:45,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:13:45,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:13:45,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:13:45,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:13:45,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:13:45,725 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:13:45,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:13:45,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:13:45,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:13:45,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:13:45,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:13:45,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:13:45,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:13:45,728 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:13:45,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:13:45,728 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:13:45,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:13:45,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:13:45,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:13:45,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:13:45,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:13:45,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:13:45,730 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:13:45,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:13:45,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:13:45,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:13:45,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:13:45,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:13:45,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:13:45,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:13:45,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:13:45,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:13:45,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:13:45,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:13:45,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:13:45,732 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:13:45,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:13:45,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:13:45,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-16 11:13:45,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:13:45,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:13:45,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:13:45,989 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:13:45,990 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:13:45,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-16 11:13:46,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/data/a8df8755e/a398ea8fba46441b86e498539a2aead1/FLAG6e92a47ec [2022-11-16 11:13:46,547 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:13:46,547 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-16 11:13:46,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/data/a8df8755e/a398ea8fba46441b86e498539a2aead1/FLAG6e92a47ec [2022-11-16 11:13:46,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/data/a8df8755e/a398ea8fba46441b86e498539a2aead1 [2022-11-16 11:13:46,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:13:46,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:13:46,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:13:46,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:13:46,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:13:46,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:46" (1/1) ... [2022-11-16 11:13:46,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f8cc3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:46, skipping insertion in model container [2022-11-16 11:13:46,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:46" (1/1) ... [2022-11-16 11:13:46,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:13:46,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:13:47,172 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-16 11:13:47,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:13:47,192 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:13:47,220 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-16 11:13:47,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:13:47,238 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:13:47,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47 WrapperNode [2022-11-16 11:13:47,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:13:47,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:13:47,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:13:47,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:13:47,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,286 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 289 [2022-11-16 11:13:47,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:13:47,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:13:47,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:13:47,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:13:47,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:13:47,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:13:47,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:13:47,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:13:47,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (1/1) ... [2022-11-16 11:13:47,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:13:47,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:13:47,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:13:47,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:13:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:13:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:13:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:13:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:13:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:13:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:13:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:13:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:13:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:13:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:13:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 11:13:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 11:13:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:13:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 11:13:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 11:13:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-16 11:13:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-16 11:13:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:13:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:13:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:13:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:13:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:13:47,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:13:47,437 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:13:47,613 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:13:47,615 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:13:48,154 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:13:48,603 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:13:48,606 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 11:13:48,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:48 BoogieIcfgContainer [2022-11-16 11:13:48,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:13:48,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:13:48,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:13:48,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:13:48,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:13:46" (1/3) ... [2022-11-16 11:13:48,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63739e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:48, skipping insertion in model container [2022-11-16 11:13:48,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:47" (2/3) ... [2022-11-16 11:13:48,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63739e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:48, skipping insertion in model container [2022-11-16 11:13:48,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:13:48" (3/3) ... [2022-11-16 11:13:48,626 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-16 11:13:48,644 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:13:48,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:13:48,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:13:48,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:13:48,885 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-16 11:13:48,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 260 transitions, 592 flow [2022-11-16 11:13:49,164 INFO L130 PetriNetUnfolder]: 18/232 cut-off events. [2022-11-16 11:13:49,165 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:13:49,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 232 events. 18/232 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 283 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 200. Up to 3 conditions per place. [2022-11-16 11:13:49,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 260 transitions, 592 flow [2022-11-16 11:13:49,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 223 transitions, 494 flow [2022-11-16 11:13:49,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:13:49,205 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;@6354bbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:13:49,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-16 11:13:49,283 INFO L130 PetriNetUnfolder]: 18/222 cut-off events. [2022-11-16 11:13:49,284 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:13:49,284 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:49,285 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:49,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:13:49,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:49,293 INFO L85 PathProgramCache]: Analyzing trace with hash -228046651, now seen corresponding path program 1 times [2022-11-16 11:13:49,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:49,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489952794] [2022-11-16 11:13:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:49,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:49,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:49,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489952794] [2022-11-16 11:13:49,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489952794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:49,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:49,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:13:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673107000] [2022-11-16 11:13:49,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:49,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:13:49,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:13:49,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:13:49,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 264 [2022-11-16 11:13:49,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 223 transitions, 494 flow. Second operand has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:49,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:49,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 264 [2022-11-16 11:13:49,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:50,718 INFO L130 PetriNetUnfolder]: 1084/2340 cut-off events. [2022-11-16 11:13:50,719 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2022-11-16 11:13:50,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4457 conditions, 2340 events. 1084/2340 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13109 event pairs, 627 based on Foata normal form. 309/2437 useless extension candidates. Maximal degree in co-relation 4157. Up to 1445 conditions per place. [2022-11-16 11:13:50,754 INFO L137 encePairwiseOnDemand]: 255/264 looper letters, 30 selfloop transitions, 0 changer transitions 4/214 dead transitions. [2022-11-16 11:13:50,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 214 transitions, 536 flow [2022-11-16 11:13:50,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:13:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:13:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 471 transitions. [2022-11-16 11:13:50,777 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8920454545454546 [2022-11-16 11:13:50,779 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 471 transitions. [2022-11-16 11:13:50,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 471 transitions. [2022-11-16 11:13:50,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:50,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 471 transitions. [2022-11-16 11:13:50,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:50,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:50,800 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:50,802 INFO L175 Difference]: Start difference. First operand has 224 places, 223 transitions, 494 flow. Second operand 2 states and 471 transitions. [2022-11-16 11:13:50,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 214 transitions, 536 flow [2022-11-16 11:13:50,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 214 transitions, 504 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-16 11:13:50,839 INFO L231 Difference]: Finished difference. Result has 213 places, 210 transitions, 436 flow [2022-11-16 11:13:50,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=436, PETRI_PLACES=213, PETRI_TRANSITIONS=210} [2022-11-16 11:13:50,846 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -11 predicate places. [2022-11-16 11:13:50,846 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 210 transitions, 436 flow [2022-11-16 11:13:50,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:50,847 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:50,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:50,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:13:50,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:13:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash -879713951, now seen corresponding path program 1 times [2022-11-16 11:13:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:50,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289254773] [2022-11-16 11:13:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:51,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:51,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:51,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289254773] [2022-11-16 11:13:51,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289254773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:51,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:51,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:13:51,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127367517] [2022-11-16 11:13:51,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:51,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:13:51,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:13:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:13:51,609 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 264 [2022-11-16 11:13:51,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 210 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:51,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:51,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 264 [2022-11-16 11:13:51,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:53,246 INFO L130 PetriNetUnfolder]: 3024/6404 cut-off events. [2022-11-16 11:13:53,247 INFO L131 PetriNetUnfolder]: For 486/486 co-relation queries the response was YES. [2022-11-16 11:13:53,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 6404 events. 3024/6404 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 47623 event pairs, 1153 based on Foata normal form. 1/5769 useless extension candidates. Maximal degree in co-relation 10859. Up to 1683 conditions per place. [2022-11-16 11:13:53,308 INFO L137 encePairwiseOnDemand]: 253/264 looper letters, 95 selfloop transitions, 10 changer transitions 4/269 dead transitions. [2022-11-16 11:13:53,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 269 transitions, 799 flow [2022-11-16 11:13:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:13:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:13:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2022-11-16 11:13:53,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7967171717171717 [2022-11-16 11:13:53,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2022-11-16 11:13:53,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2022-11-16 11:13:53,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:53,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2022-11-16 11:13:53,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:53,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:53,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:53,370 INFO L175 Difference]: Start difference. First operand has 213 places, 210 transitions, 436 flow. Second operand 6 states and 1262 transitions. [2022-11-16 11:13:53,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 269 transitions, 799 flow [2022-11-16 11:13:53,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 269 transitions, 799 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:13:53,381 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 499 flow [2022-11-16 11:13:53,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=499, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2022-11-16 11:13:53,382 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -6 predicate places. [2022-11-16 11:13:53,382 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 499 flow [2022-11-16 11:13:53,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:53,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:53,384 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:53,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:13:53,384 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:13:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1376344111, now seen corresponding path program 2 times [2022-11-16 11:13:53,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:53,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565326027] [2022-11-16 11:13:53,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:53,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:53,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:53,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565326027] [2022-11-16 11:13:53,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565326027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:53,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:53,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:13:53,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771097659] [2022-11-16 11:13:53,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:53,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:13:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:53,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:13:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:13:53,930 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 264 [2022-11-16 11:13:53,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:53,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:53,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 264 [2022-11-16 11:13:53,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:13:56,823 INFO L130 PetriNetUnfolder]: 4929/10331 cut-off events. [2022-11-16 11:13:56,824 INFO L131 PetriNetUnfolder]: For 2189/2189 co-relation queries the response was YES. [2022-11-16 11:13:56,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19625 conditions, 10331 events. 4929/10331 cut-off events. For 2189/2189 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 85348 event pairs, 1899 based on Foata normal form. 1/9262 useless extension candidates. Maximal degree in co-relation 19617. Up to 3014 conditions per place. [2022-11-16 11:13:56,954 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 99 selfloop transitions, 14 changer transitions 4/277 dead transitions. [2022-11-16 11:13:56,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 277 transitions, 912 flow [2022-11-16 11:13:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:13:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:13:56,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1263 transitions. [2022-11-16 11:13:56,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7973484848484849 [2022-11-16 11:13:56,960 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1263 transitions. [2022-11-16 11:13:56,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1263 transitions. [2022-11-16 11:13:56,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:13:56,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1263 transitions. [2022-11-16 11:13:56,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.5) internal successors, (1263), 6 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,972 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,972 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 499 flow. Second operand 6 states and 1263 transitions. [2022-11-16 11:13:56,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 277 transitions, 912 flow [2022-11-16 11:13:56,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 277 transitions, 902 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-16 11:13:56,983 INFO L231 Difference]: Finished difference. Result has 223 places, 224 transitions, 588 flow [2022-11-16 11:13:56,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=588, PETRI_PLACES=223, PETRI_TRANSITIONS=224} [2022-11-16 11:13:56,986 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -1 predicate places. [2022-11-16 11:13:56,987 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 224 transitions, 588 flow [2022-11-16 11:13:56,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:56,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:13:56,989 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:13:56,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:13:56,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:13:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:13:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2126041498, now seen corresponding path program 1 times [2022-11-16 11:13:56,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:13:56,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536692667] [2022-11-16 11:13:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:13:56,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:13:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:13:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:13:57,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:13:57,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536692667] [2022-11-16 11:13:57,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536692667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:13:57,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:13:57,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:13:57,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619786516] [2022-11-16 11:13:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:13:57,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:13:57,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:13:57,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:13:57,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:13:57,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 264 [2022-11-16 11:13:57,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 224 transitions, 588 flow. Second operand has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:13:57,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:13:57,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 264 [2022-11-16 11:13:57,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:01,375 INFO L130 PetriNetUnfolder]: 6200/14218 cut-off events. [2022-11-16 11:14:01,376 INFO L131 PetriNetUnfolder]: For 6253/6253 co-relation queries the response was YES. [2022-11-16 11:14:01,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28095 conditions, 14218 events. 6200/14218 cut-off events. For 6253/6253 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 130027 event pairs, 1544 based on Foata normal form. 573/13424 useless extension candidates. Maximal degree in co-relation 28084. Up to 3830 conditions per place. [2022-11-16 11:14:01,539 INFO L137 encePairwiseOnDemand]: 254/264 looper letters, 136 selfloop transitions, 9 changer transitions 0/308 dead transitions. [2022-11-16 11:14:01,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 308 transitions, 1227 flow [2022-11-16 11:14:01,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:14:01,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:14:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1707 transitions. [2022-11-16 11:14:01,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8082386363636364 [2022-11-16 11:14:01,545 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1707 transitions. [2022-11-16 11:14:01,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1707 transitions. [2022-11-16 11:14:01,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:01,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1707 transitions. [2022-11-16 11:14:01,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 213.375) internal successors, (1707), 8 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:01,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:01,565 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:01,565 INFO L175 Difference]: Start difference. First operand has 223 places, 224 transitions, 588 flow. Second operand 8 states and 1707 transitions. [2022-11-16 11:14:01,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 308 transitions, 1227 flow [2022-11-16 11:14:01,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 308 transitions, 1215 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:01,587 INFO L231 Difference]: Finished difference. Result has 231 places, 230 transitions, 657 flow [2022-11-16 11:14:01,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=657, PETRI_PLACES=231, PETRI_TRANSITIONS=230} [2022-11-16 11:14:01,589 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 7 predicate places. [2022-11-16 11:14:01,590 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 230 transitions, 657 flow [2022-11-16 11:14:01,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:01,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:01,591 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:01,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:14:01,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:14:01,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:01,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1388435538, now seen corresponding path program 1 times [2022-11-16 11:14:01,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:01,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044351239] [2022-11-16 11:14:01,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:01,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:02,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:02,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044351239] [2022-11-16 11:14:02,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044351239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:14:02,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:14:02,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:14:02,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696853998] [2022-11-16 11:14:02,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:02,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:14:02,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:02,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:14:02,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:14:02,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 264 [2022-11-16 11:14:02,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 657 flow. Second operand has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:02,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:02,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 264 [2022-11-16 11:14:02,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:05,018 INFO L130 PetriNetUnfolder]: 4877/12045 cut-off events. [2022-11-16 11:14:05,018 INFO L131 PetriNetUnfolder]: For 8228/8228 co-relation queries the response was YES. [2022-11-16 11:14:05,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25455 conditions, 12045 events. 4877/12045 cut-off events. For 8228/8228 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 112235 event pairs, 1256 based on Foata normal form. 408/11194 useless extension candidates. Maximal degree in co-relation 25440. Up to 3505 conditions per place. [2022-11-16 11:14:05,151 INFO L137 encePairwiseOnDemand]: 254/264 looper letters, 95 selfloop transitions, 6 changer transitions 34/298 dead transitions. [2022-11-16 11:14:05,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 298 transitions, 1222 flow [2022-11-16 11:14:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:14:05,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:14:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1699 transitions. [2022-11-16 11:14:05,156 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8044507575757576 [2022-11-16 11:14:05,157 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1699 transitions. [2022-11-16 11:14:05,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1699 transitions. [2022-11-16 11:14:05,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:05,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1699 transitions. [2022-11-16 11:14:05,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 212.375) internal successors, (1699), 8 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:05,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:05,170 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:05,171 INFO L175 Difference]: Start difference. First operand has 231 places, 230 transitions, 657 flow. Second operand 8 states and 1699 transitions. [2022-11-16 11:14:05,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 298 transitions, 1222 flow [2022-11-16 11:14:05,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 298 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:14:05,185 INFO L231 Difference]: Finished difference. Result has 240 places, 229 transitions, 663 flow [2022-11-16 11:14:05,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=663, PETRI_PLACES=240, PETRI_TRANSITIONS=229} [2022-11-16 11:14:05,189 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 16 predicate places. [2022-11-16 11:14:05,189 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 229 transitions, 663 flow [2022-11-16 11:14:05,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:05,190 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:05,190 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:05,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:14:05,191 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:14:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 506259595, now seen corresponding path program 1 times [2022-11-16 11:14:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:05,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731398794] [2022-11-16 11:14:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:05,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:05,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731398794] [2022-11-16 11:14:05,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731398794] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:05,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010979292] [2022-11-16 11:14:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:05,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:05,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:05,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:14:05,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:14:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:06,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:14:06,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:06,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:14:06,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:06,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010979292] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:14:06,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:14:06,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-16 11:14:06,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173536202] [2022-11-16 11:14:06,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:14:06,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:14:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:06,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:14:06,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:14:06,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-16 11:14:06,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 229 transitions, 663 flow. Second operand has 19 states, 19 states have (on average 201.47368421052633) internal successors, (3828), 19 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:06,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:06,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-16 11:14:06,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:09,974 INFO L130 PetriNetUnfolder]: 5825/13561 cut-off events. [2022-11-16 11:14:09,974 INFO L131 PetriNetUnfolder]: For 13694/13694 co-relation queries the response was YES. [2022-11-16 11:14:10,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32409 conditions, 13561 events. 5825/13561 cut-off events. For 13694/13694 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 125073 event pairs, 1750 based on Foata normal form. 156/12386 useless extension candidates. Maximal degree in co-relation 32390. Up to 3665 conditions per place. [2022-11-16 11:14:10,109 INFO L137 encePairwiseOnDemand]: 248/264 looper letters, 144 selfloop transitions, 17 changer transitions 0/323 dead transitions. [2022-11-16 11:14:10,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 323 transitions, 1438 flow [2022-11-16 11:14:10,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:14:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:14:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2891 transitions. [2022-11-16 11:14:10,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7821969696969697 [2022-11-16 11:14:10,116 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2891 transitions. [2022-11-16 11:14:10,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2891 transitions. [2022-11-16 11:14:10,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:10,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2891 transitions. [2022-11-16 11:14:10,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.5) internal successors, (2891), 14 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:10,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:10,132 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:10,132 INFO L175 Difference]: Start difference. First operand has 240 places, 229 transitions, 663 flow. Second operand 14 states and 2891 transitions. [2022-11-16 11:14:10,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 323 transitions, 1438 flow [2022-11-16 11:14:10,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 323 transitions, 1393 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-16 11:14:10,149 INFO L231 Difference]: Finished difference. Result has 248 places, 238 transitions, 757 flow [2022-11-16 11:14:10,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=757, PETRI_PLACES=248, PETRI_TRANSITIONS=238} [2022-11-16 11:14:10,150 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 24 predicate places. [2022-11-16 11:14:10,151 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 238 transitions, 757 flow [2022-11-16 11:14:10,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 201.47368421052633) internal successors, (3828), 19 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:10,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:10,153 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:10,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:14:10,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:10,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:14:10,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:10,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1061539039, now seen corresponding path program 1 times [2022-11-16 11:14:10,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:10,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348313424] [2022-11-16 11:14:10,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:10,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:10,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:10,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348313424] [2022-11-16 11:14:10,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348313424] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:10,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970448804] [2022-11-16 11:14:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:10,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:10,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:10,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:14:10,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:14:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:11,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:14:11,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:11,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:14:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:11,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970448804] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:14:11,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:14:11,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 11:14:11,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673619784] [2022-11-16 11:14:11,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:14:11,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:14:11,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:11,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:14:11,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:14:11,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-16 11:14:11,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 238 transitions, 757 flow. Second operand has 18 states, 18 states have (on average 201.72222222222223) internal successors, (3631), 18 states have internal predecessors, (3631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:11,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:11,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-16 11:14:11,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:14,466 INFO L130 PetriNetUnfolder]: 4877/11611 cut-off events. [2022-11-16 11:14:14,467 INFO L131 PetriNetUnfolder]: For 11880/11880 co-relation queries the response was YES. [2022-11-16 11:14:14,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27889 conditions, 11611 events. 4877/11611 cut-off events. For 11880/11880 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 104826 event pairs, 1230 based on Foata normal form. 69/10590 useless extension candidates. Maximal degree in co-relation 27868. Up to 3505 conditions per place. [2022-11-16 11:14:14,577 INFO L137 encePairwiseOnDemand]: 249/264 looper letters, 94 selfloop transitions, 13 changer transitions 40/309 dead transitions. [2022-11-16 11:14:14,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 309 transitions, 1386 flow [2022-11-16 11:14:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:14:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:14:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2685 transitions. [2022-11-16 11:14:14,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7823426573426573 [2022-11-16 11:14:14,585 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2685 transitions. [2022-11-16 11:14:14,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2685 transitions. [2022-11-16 11:14:14,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:14,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2685 transitions. [2022-11-16 11:14:14,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 206.53846153846155) internal successors, (2685), 13 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:14,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 264.0) internal successors, (3696), 14 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:14,600 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 264.0) internal successors, (3696), 14 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:14,600 INFO L175 Difference]: Start difference. First operand has 248 places, 238 transitions, 757 flow. Second operand 13 states and 2685 transitions. [2022-11-16 11:14:14,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 309 transitions, 1386 flow [2022-11-16 11:14:14,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 309 transitions, 1369 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-16 11:14:14,613 INFO L231 Difference]: Finished difference. Result has 257 places, 233 transitions, 728 flow [2022-11-16 11:14:14,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=728, PETRI_PLACES=257, PETRI_TRANSITIONS=233} [2022-11-16 11:14:14,614 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 33 predicate places. [2022-11-16 11:14:14,614 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 233 transitions, 728 flow [2022-11-16 11:14:14,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 201.72222222222223) internal successors, (3631), 18 states have internal predecessors, (3631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:14,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:14,617 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:14,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:14:14,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:14,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:14:14,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1580646018, now seen corresponding path program 2 times [2022-11-16 11:14:14,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:14,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364550572] [2022-11-16 11:14:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:14:15,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:15,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364550572] [2022-11-16 11:14:15,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364550572] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:15,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779169734] [2022-11-16 11:14:15,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:14:15,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:15,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:15,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:14:15,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:14:15,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:14:15,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:14:15,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:14:15,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:14:16,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:14:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:14:16,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779169734] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:16,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:14:16,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-11-16 11:14:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959591168] [2022-11-16 11:14:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:16,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:14:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:16,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:14:16,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:14:16,411 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-16 11:14:16,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 233 transitions, 728 flow. Second operand has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:16,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:16,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-16 11:14:16,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:18,095 INFO L130 PetriNetUnfolder]: 3360/7807 cut-off events. [2022-11-16 11:14:18,096 INFO L131 PetriNetUnfolder]: For 10762/10762 co-relation queries the response was YES. [2022-11-16 11:14:18,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20209 conditions, 7807 events. 3360/7807 cut-off events. For 10762/10762 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 64718 event pairs, 1268 based on Foata normal form. 162/7253 useless extension candidates. Maximal degree in co-relation 20186. Up to 4107 conditions per place. [2022-11-16 11:14:18,153 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 85 selfloop transitions, 11 changer transitions 0/258 dead transitions. [2022-11-16 11:14:18,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 258 transitions, 1051 flow [2022-11-16 11:14:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:14:18,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:14:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2053 transitions. [2022-11-16 11:14:18,159 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776515151515152 [2022-11-16 11:14:18,159 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2053 transitions. [2022-11-16 11:14:18,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2053 transitions. [2022-11-16 11:14:18,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:18,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2053 transitions. [2022-11-16 11:14:18,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.3) internal successors, (2053), 10 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:18,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:18,172 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:18,173 INFO L175 Difference]: Start difference. First operand has 257 places, 233 transitions, 728 flow. Second operand 10 states and 2053 transitions. [2022-11-16 11:14:18,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 258 transitions, 1051 flow [2022-11-16 11:14:18,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 258 transitions, 992 flow, removed 15 selfloop flow, removed 14 redundant places. [2022-11-16 11:14:18,185 INFO L231 Difference]: Finished difference. Result has 250 places, 236 transitions, 731 flow [2022-11-16 11:14:18,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=731, PETRI_PLACES=250, PETRI_TRANSITIONS=236} [2022-11-16 11:14:18,187 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 26 predicate places. [2022-11-16 11:14:18,187 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 236 transitions, 731 flow [2022-11-16 11:14:18,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:18,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:18,189 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:18,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:14:18,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 11:14:18,396 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:14:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1555034670, now seen corresponding path program 2 times [2022-11-16 11:14:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:18,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590985268] [2022-11-16 11:14:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:14:18,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:18,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590985268] [2022-11-16 11:14:18,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590985268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:18,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343183182] [2022-11-16 11:14:18,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:14:18,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:18,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:18,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:14:18,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:14:19,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:14:19,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:14:19,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 11:14:19,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:19,544 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:14:19,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:14:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:14:19,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343183182] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:19,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:14:19,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-11-16 11:14:19,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443554875] [2022-11-16 11:14:19,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:14:19,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:14:19,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:14:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:14:19,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:14:19,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-16 11:14:19,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 236 transitions, 731 flow. Second operand has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:19,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:14:19,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-16 11:14:19,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:14:21,213 INFO L130 PetriNetUnfolder]: 2541/5519 cut-off events. [2022-11-16 11:14:21,213 INFO L131 PetriNetUnfolder]: For 6558/6558 co-relation queries the response was YES. [2022-11-16 11:14:21,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15114 conditions, 5519 events. 2541/5519 cut-off events. For 6558/6558 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 40001 event pairs, 884 based on Foata normal form. 114/5178 useless extension candidates. Maximal degree in co-relation 15093. Up to 3108 conditions per place. [2022-11-16 11:14:21,281 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 89 selfloop transitions, 11 changer transitions 0/262 dead transitions. [2022-11-16 11:14:21,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 262 transitions, 1065 flow [2022-11-16 11:14:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:14:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:14:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2053 transitions. [2022-11-16 11:14:21,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776515151515152 [2022-11-16 11:14:21,287 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2053 transitions. [2022-11-16 11:14:21,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2053 transitions. [2022-11-16 11:14:21,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:14:21,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2053 transitions. [2022-11-16 11:14:21,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.3) internal successors, (2053), 10 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:21,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:21,301 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:21,301 INFO L175 Difference]: Start difference. First operand has 250 places, 236 transitions, 731 flow. Second operand 10 states and 2053 transitions. [2022-11-16 11:14:21,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 262 transitions, 1065 flow [2022-11-16 11:14:21,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 262 transitions, 1032 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-16 11:14:21,317 INFO L231 Difference]: Finished difference. Result has 253 places, 238 transitions, 747 flow [2022-11-16 11:14:21,318 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=747, PETRI_PLACES=253, PETRI_TRANSITIONS=238} [2022-11-16 11:14:21,319 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 29 predicate places. [2022-11-16 11:14:21,319 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 238 transitions, 747 flow [2022-11-16 11:14:21,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:14:21,320 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:14:21,320 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:14:21,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:14:21,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:21,527 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-16 11:14:21,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:14:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1618733321, now seen corresponding path program 1 times [2022-11-16 11:14:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:14:21,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998257216] [2022-11-16 11:14:21,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:14:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:14:24,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:14:24,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998257216] [2022-11-16 11:14:24,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998257216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:14:24,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000643479] [2022-11-16 11:14:24,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:14:24,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:14:24,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:14:24,211 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:14:24,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67bfec5d-48b4-4e9c-b9ac-2ba9e554edb3/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:14:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:14:24,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-16 11:14:24,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:14:25,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-16 11:14:25,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:14:25,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:14:25,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:14:25,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 11:14:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:14:26,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:14:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:14:26,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:14:26,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 11:14:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:14:26,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:14:26,909 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))) (and (forall ((v_ArrVal_490 (Array Int Int))) (<= c_~s_2~0 (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_490) c_~X_0~0.base) .cse0)))) (forall ((v_ArrVal_490 (Array Int Int))) (< (+ c_~s_6~0 (select (select (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_490) c_~X_0~0.base) .cse0)) (+ 1 c_~s_2~0))))) is different from false [2022-11-16 11:14:27,380 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))))))) is different from false [2022-11-16 11:14:28,733 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))))) is different from false [2022-11-16 11:14:31,154 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ c_~t_4~0 1 c_~s_2~0))))))))) is different from false [2022-11-16 11:14:33,160 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~X_0~0.offset 4)) (.cse0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= (+ .cse0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1) (+ .cse0 1 c_~s_2~0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))))) is different from false [2022-11-16 11:14:33,549 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) (.cse1 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (< (select (select (store (store .cse0 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1) (+ (select (select .cse0 c_~X_0~0.base) .cse2) 1 c_~s_2~0)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (<= (+ (select (select .cse3 c_~X_0~0.base) .cse2) c_~s_2~0) (select (select (store (store .cse3 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))))) is different from false [2022-11-16 11:14:33,850 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~X_0~0.offset 4)) (.cse1 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0)))) (and (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_487) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (<= (+ (select (select .cse0 c_~X_0~0.base) .cse1) c_~s_2~0) (select (select (store (store .cse0 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse2)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_487) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (< (select (select (store (store .cse3 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse2) (+ (select (select .cse3 c_~X_0~0.base) .cse1) 1 c_~s_2~0)))))))))) is different from false [2022-11-16 11:15:49,767 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:15:49,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 58 [2022-11-16 11:15:50,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 764755836918 treesize of output 747039096822