./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ --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 c22ca6d642b28badc1dc02a5cc527ddbb1f35b5d6d2e3ba3e8f314e81f0fd465 --- 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-dbf71c6-m [2022-10-17 10:41:50,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:41:50,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:41:50,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:41:50,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:41:50,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:41:50,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:41:50,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:41:50,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:41:50,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:41:50,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:41:50,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:41:50,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:41:50,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:41:50,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:41:50,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:41:50,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:41:50,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:41:50,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:41:50,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:41:50,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:41:50,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:41:50,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:41:50,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:41:50,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:41:50,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:41:50,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:41:50,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:41:50,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:41:50,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:41:50,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:41:50,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:41:50,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:41:50,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:41:50,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:41:50,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:41:50,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:41:50,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:41:50,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:41:50,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:41:50,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:41:50,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:41:50,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:41:50,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:41:50,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:41:50,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:41:50,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:41:50,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:41:50,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:41:50,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:41:50,680 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:41:50,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:41:50,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:41:50,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:41:50,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:41:50,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:41:50,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:41:50,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:41:50,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:41:50,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:41:50,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:41:50,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:41:50,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:41:50,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:41:50,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:41:50,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:41:50,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:41:50,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:41:50,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:41:50,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:41:50,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:41:50,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:41:50,684 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:41:50,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:41:50,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:41:50,685 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_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22ca6d642b28badc1dc02a5cc527ddbb1f35b5d6d2e3ba3e8f314e81f0fd465 [2022-10-17 10:41:50,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:41:50,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:41:50,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:41:50,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:41:50,944 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:41:50,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i [2022-10-17 10:41:51,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/data/662c077d2/db5d1081f83f48efb8756c314d1af274/FLAG5987ca9f7 [2022-10-17 10:41:51,557 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:41:51,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i [2022-10-17 10:41:51,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/data/662c077d2/db5d1081f83f48efb8756c314d1af274/FLAG5987ca9f7 [2022-10-17 10:41:51,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/data/662c077d2/db5d1081f83f48efb8756c314d1af274 [2022-10-17 10:41:51,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:41:51,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:41:51,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:41:51,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:41:51,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:41:51,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:41:51" (1/1) ... [2022-10-17 10:41:51,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c7bf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:51, skipping insertion in model container [2022-10-17 10:41:51,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:41:51" (1/1) ... [2022-10-17 10:41:51,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:41:51,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:41:52,137 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i[949,962] [2022-10-17 10:41:52,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:41:52,465 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:41:52,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i[949,962] [2022-10-17 10:41:52,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:41:52,609 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:41:52,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52 WrapperNode [2022-10-17 10:41:52,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:41:52,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:41:52,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:41:52,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:41:52,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,690 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 293 [2022-10-17 10:41:52,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:41:52,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:41:52,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:41:52,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:41:52,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:41:52,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:41:52,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:41:52,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:41:52,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (1/1) ... [2022-10-17 10:41:52,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:41:52,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:41:52,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:41:52,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9644d12-766f-4260-adc1-6981c65394c2/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:41:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:41:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:41:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:41:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:41:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:41:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-17 10:41:52,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-17 10:41:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-17 10:41:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-17 10:41:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-17 10:41:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-17 10:41:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-17 10:41:52,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-17 10:41:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:41:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:41:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:41:52,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:41:52,861 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:41:53,105 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:41:53,108 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:41:53,833 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:41:54,371 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:41:54,371 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:41:54,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:54 BoogieIcfgContainer [2022-10-17 10:41:54,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:41:54,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:41:54,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:41:54,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:41:54,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:41:51" (1/3) ... [2022-10-17 10:41:54,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d1ca1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:41:54, skipping insertion in model container [2022-10-17 10:41:54,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:41:52" (2/3) ... [2022-10-17 10:41:54,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d1ca1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:41:54, skipping insertion in model container [2022-10-17 10:41:54,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:41:54" (3/3) ... [2022-10-17 10:41:54,391 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_tso.oepc.i [2022-10-17 10:41:54,400 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:41:54,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:41:54,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 10:41:54,411 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:41:54,500 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:41:54,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 140 transitions, 300 flow [2022-10-17 10:41:54,637 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2022-10-17 10:41:54,637 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:41:54,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-10-17 10:41:54,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 140 transitions, 300 flow [2022-10-17 10:41:54,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 136 transitions, 284 flow [2022-10-17 10:41:54,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:41:54,679 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;@60c00ea6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:41:54,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:41:54,706 INFO L130 PetriNetUnfolder]: 0/65 cut-off events. [2022-10-17 10:41:54,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:41:54,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:41:54,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:54,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:41:54,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:54,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1996518298, now seen corresponding path program 1 times [2022-10-17 10:41:54,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:54,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096335638] [2022-10-17 10:41:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:54,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:55,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:55,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096335638] [2022-10-17 10:41:55,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096335638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:55,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:55,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:41:55,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669475524] [2022-10-17 10:41:55,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:55,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:41:55,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:55,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:41:55,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:41:55,533 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 140 [2022-10-17 10:41:55,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2022-10-17 10:41:55,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:41:55,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 140 [2022-10-17 10:41:55,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:41:56,025 INFO L130 PetriNetUnfolder]: 161/1036 cut-off events. [2022-10-17 10:41:56,025 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-10-17 10:41:56,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 1036 events. 161/1036 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6998 event pairs, 103 based on Foata normal form. 35/1013 useless extension candidates. Maximal degree in co-relation 1279. Up to 187 conditions per place. [2022-10-17 10:41:56,043 INFO L137 encePairwiseOnDemand]: 135/140 looper letters, 17 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-10-17 10:41:56,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 139 transitions, 334 flow [2022-10-17 10:41:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:41:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:41:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2022-10-17 10:41:56,065 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9428571428571428 [2022-10-17 10:41:56,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2022-10-17 10:41:56,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2022-10-17 10:41:56,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:56,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2022-10-17 10:41:56,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2022-10-17 10:41:56,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2022-10-17 10:41:56,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2022-10-17 10:41:56,092 INFO L175 Difference]: Start difference. First operand has 147 places, 136 transitions, 284 flow. Second operand 3 states and 396 transitions. [2022-10-17 10:41:56,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 139 transitions, 334 flow [2022-10-17 10:41:56,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 139 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:41:56,107 INFO L231 Difference]: Finished difference. Result has 143 places, 132 transitions, 276 flow [2022-10-17 10:41:56,109 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=143, PETRI_TRANSITIONS=132} [2022-10-17 10:41:56,113 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2022-10-17 10:41:56,114 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 132 transitions, 276 flow [2022-10-17 10:41:56,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2022-10-17 10:41:56,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:41:56,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:56,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:41:56,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:41:56,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash -583916909, now seen corresponding path program 1 times [2022-10-17 10:41:56,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:56,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918104766] [2022-10-17 10:41:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:56,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:56,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918104766] [2022-10-17 10:41:56,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918104766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:56,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:56,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:41:56,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288544121] [2022-10-17 10:41:56,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:56,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:41:56,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:56,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:41:56,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:41:56,784 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 140 [2022-10-17 10:41:56,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2022-10-17 10:41:56,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:41:56,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 140 [2022-10-17 10:41:56,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:41:57,837 INFO L130 PetriNetUnfolder]: 869/2454 cut-off events. [2022-10-17 10:41:57,837 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2022-10-17 10:41:57,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3925 conditions, 2454 events. 869/2454 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 19511 event pairs, 129 based on Foata normal form. 0/2397 useless extension candidates. Maximal degree in co-relation 3867. Up to 609 conditions per place. [2022-10-17 10:41:57,858 INFO L137 encePairwiseOnDemand]: 134/140 looper letters, 21 selfloop transitions, 2 changer transitions 53/176 dead transitions. [2022-10-17 10:41:57,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 176 transitions, 504 flow [2022-10-17 10:41:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:41:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-10-17 10:41:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1118 transitions. [2022-10-17 10:41:57,864 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8873015873015873 [2022-10-17 10:41:57,865 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1118 transitions. [2022-10-17 10:41:57,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1118 transitions. [2022-10-17 10:41:57,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:57,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1118 transitions. [2022-10-17 10:41:57,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.22222222222223) internal successors, (1118), 9 states have internal predecessors, (1118), 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) [2022-10-17 10:41:57,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 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) [2022-10-17 10:41:57,877 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 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) [2022-10-17 10:41:57,877 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 9 states and 1118 transitions. [2022-10-17 10:41:57,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 176 transitions, 504 flow [2022-10-17 10:41:57,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 176 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:41:57,885 INFO L231 Difference]: Finished difference. Result has 156 places, 118 transitions, 264 flow [2022-10-17 10:41:57,885 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=156, PETRI_TRANSITIONS=118} [2022-10-17 10:41:57,886 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 9 predicate places. [2022-10-17 10:41:57,887 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 118 transitions, 264 flow [2022-10-17 10:41:57,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2022-10-17 10:41:57,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:41:57,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:57,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:41:57,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:41:57,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:57,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1362219406, now seen corresponding path program 1 times [2022-10-17 10:41:57,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:57,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190771277] [2022-10-17 10:41:57,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:57,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:41:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:41:58,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:41:58,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190771277] [2022-10-17 10:41:58,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190771277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:41:58,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:41:58,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:41:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735697061] [2022-10-17 10:41:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:41:58,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:41:58,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:41:58,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:41:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:41:58,459 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 140 [2022-10-17 10:41:58,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 118 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2022-10-17 10:41:58,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:41:58,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 140 [2022-10-17 10:41:58,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:41:59,281 INFO L130 PetriNetUnfolder]: 746/1607 cut-off events. [2022-10-17 10:41:59,281 INFO L131 PetriNetUnfolder]: For 329/329 co-relation queries the response was YES. [2022-10-17 10:41:59,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3122 conditions, 1607 events. 746/1607 cut-off events. For 329/329 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 10056 event pairs, 200 based on Foata normal form. 36/1589 useless extension candidates. Maximal degree in co-relation 3057. Up to 571 conditions per place. [2022-10-17 10:41:59,299 INFO L137 encePairwiseOnDemand]: 134/140 looper letters, 22 selfloop transitions, 2 changer transitions 37/161 dead transitions. [2022-10-17 10:41:59,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 161 transitions, 492 flow [2022-10-17 10:41:59,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:41:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-10-17 10:41:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1116 transitions. [2022-10-17 10:41:59,306 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2022-10-17 10:41:59,306 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1116 transitions. [2022-10-17 10:41:59,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1116 transitions. [2022-10-17 10:41:59,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:41:59,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1116 transitions. [2022-10-17 10:41:59,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.0) internal successors, (1116), 9 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:41:59,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 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) [2022-10-17 10:41:59,316 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 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) [2022-10-17 10:41:59,341 INFO L175 Difference]: Start difference. First operand has 156 places, 118 transitions, 264 flow. Second operand 9 states and 1116 transitions. [2022-10-17 10:41:59,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 161 transitions, 492 flow [2022-10-17 10:41:59,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 161 transitions, 460 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-10-17 10:41:59,364 INFO L231 Difference]: Finished difference. Result has 143 places, 118 transitions, 268 flow [2022-10-17 10:41:59,364 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=143, PETRI_TRANSITIONS=118} [2022-10-17 10:41:59,367 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2022-10-17 10:41:59,367 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 118 transitions, 268 flow [2022-10-17 10:41:59,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2022-10-17 10:41:59,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:41:59,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:41:59,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:41:59,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:41:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:41:59,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1294539535, now seen corresponding path program 1 times [2022-10-17 10:41:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:41:59,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754625504] [2022-10-17 10:41:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:41:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:41:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:00,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754625504] [2022-10-17 10:42:00,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754625504] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:00,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:00,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-17 10:42:00,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686150137] [2022-10-17 10:42:00,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:00,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:42:00,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:42:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:42:00,560 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 140 [2022-10-17 10:42:00,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 118 transitions, 268 flow. Second operand has 9 states, 9 states have (on average 116.55555555555556) internal successors, (1049), 9 states have internal predecessors, (1049), 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) [2022-10-17 10:42:00,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:00,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 140 [2022-10-17 10:42:00,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:01,424 INFO L130 PetriNetUnfolder]: 862/1778 cut-off events. [2022-10-17 10:42:01,424 INFO L131 PetriNetUnfolder]: For 461/461 co-relation queries the response was YES. [2022-10-17 10:42:01,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3557 conditions, 1778 events. 862/1778 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10804 event pairs, 320 based on Foata normal form. 36/1778 useless extension candidates. Maximal degree in co-relation 3489. Up to 822 conditions per place. [2022-10-17 10:42:01,444 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 22 selfloop transitions, 7 changer transitions 40/167 dead transitions. [2022-10-17 10:42:01,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 167 transitions, 530 flow [2022-10-17 10:42:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:42:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-10-17 10:42:01,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1336 transitions. [2022-10-17 10:42:01,450 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8675324675324675 [2022-10-17 10:42:01,451 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1336 transitions. [2022-10-17 10:42:01,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1336 transitions. [2022-10-17 10:42:01,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:01,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1336 transitions. [2022-10-17 10:42:01,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 121.45454545454545) internal successors, (1336), 11 states have internal predecessors, (1336), 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) [2022-10-17 10:42:01,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 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) [2022-10-17 10:42:01,468 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 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) [2022-10-17 10:42:01,468 INFO L175 Difference]: Start difference. First operand has 143 places, 118 transitions, 268 flow. Second operand 11 states and 1336 transitions. [2022-10-17 10:42:01,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 167 transitions, 530 flow [2022-10-17 10:42:01,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 167 transitions, 498 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-10-17 10:42:01,491 INFO L231 Difference]: Finished difference. Result has 146 places, 122 transitions, 325 flow [2022-10-17 10:42:01,492 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=325, PETRI_PLACES=146, PETRI_TRANSITIONS=122} [2022-10-17 10:42:01,494 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -1 predicate places. [2022-10-17 10:42:01,494 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 122 transitions, 325 flow [2022-10-17 10:42:01,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.55555555555556) internal successors, (1049), 9 states have internal predecessors, (1049), 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) [2022-10-17 10:42:01,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:01,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:01,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:42:01,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:01,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:01,496 INFO L85 PathProgramCache]: Analyzing trace with hash 369886138, now seen corresponding path program 1 times [2022-10-17 10:42:01,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:01,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642817374] [2022-10-17 10:42:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:01,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:01,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642817374] [2022-10-17 10:42:01,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642817374] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:01,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:01,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:42:01,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134098098] [2022-10-17 10:42:01,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:01,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:42:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:01,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:42:01,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:42:01,921 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 140 [2022-10-17 10:42:01,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 122 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 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) [2022-10-17 10:42:01,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:01,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 140 [2022-10-17 10:42:01,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:03,296 INFO L130 PetriNetUnfolder]: 1836/3690 cut-off events. [2022-10-17 10:42:03,296 INFO L131 PetriNetUnfolder]: For 7741/7741 co-relation queries the response was YES. [2022-10-17 10:42:03,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11771 conditions, 3690 events. 1836/3690 cut-off events. For 7741/7741 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 27027 event pairs, 272 based on Foata normal form. 34/3665 useless extension candidates. Maximal degree in co-relation 11701. Up to 1234 conditions per place. [2022-10-17 10:42:03,348 INFO L137 encePairwiseOnDemand]: 134/140 looper letters, 43 selfloop transitions, 2 changer transitions 20/163 dead transitions. [2022-10-17 10:42:03,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 163 transitions, 691 flow [2022-10-17 10:42:03,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:42:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-10-17 10:42:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 856 transitions. [2022-10-17 10:42:03,401 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8734693877551021 [2022-10-17 10:42:03,402 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 856 transitions. [2022-10-17 10:42:03,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 856 transitions. [2022-10-17 10:42:03,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:03,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 856 transitions. [2022-10-17 10:42:03,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.28571428571429) internal successors, (856), 7 states have internal predecessors, (856), 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) [2022-10-17 10:42:03,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 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) [2022-10-17 10:42:03,408 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 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) [2022-10-17 10:42:03,408 INFO L175 Difference]: Start difference. First operand has 146 places, 122 transitions, 325 flow. Second operand 7 states and 856 transitions. [2022-10-17 10:42:03,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 163 transitions, 691 flow [2022-10-17 10:42:03,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 163 transitions, 661 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-10-17 10:42:03,436 INFO L231 Difference]: Finished difference. Result has 145 places, 123 transitions, 329 flow [2022-10-17 10:42:03,436 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=329, PETRI_PLACES=145, PETRI_TRANSITIONS=123} [2022-10-17 10:42:03,439 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -2 predicate places. [2022-10-17 10:42:03,440 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 123 transitions, 329 flow [2022-10-17 10:42:03,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.42857142857143) internal successors, (815), 7 states have internal predecessors, (815), 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) [2022-10-17 10:42:03,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:03,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:03,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:42:03,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash -391007876, now seen corresponding path program 2 times [2022-10-17 10:42:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:03,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789781607] [2022-10-17 10:42:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:04,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:04,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789781607] [2022-10-17 10:42:04,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789781607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:04,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:04,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:42:04,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805879607] [2022-10-17 10:42:04,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:04,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:42:04,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:04,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:42:04,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:42:04,988 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-10-17 10:42:04,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 123 transitions, 329 flow. Second operand has 12 states, 12 states have (on average 114.41666666666667) internal successors, (1373), 12 states have internal predecessors, (1373), 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) [2022-10-17 10:42:04,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:04,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-10-17 10:42:04,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:06,092 INFO L130 PetriNetUnfolder]: 1097/2385 cut-off events. [2022-10-17 10:42:06,093 INFO L131 PetriNetUnfolder]: For 5645/6048 co-relation queries the response was YES. [2022-10-17 10:42:06,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8012 conditions, 2385 events. 1097/2385 cut-off events. For 5645/6048 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 16378 event pairs, 763 based on Foata normal form. 20/2294 useless extension candidates. Maximal degree in co-relation 7939. Up to 1426 conditions per place. [2022-10-17 10:42:06,130 INFO L137 encePairwiseOnDemand]: 128/140 looper letters, 23 selfloop transitions, 11 changer transitions 34/165 dead transitions. [2022-10-17 10:42:06,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 165 transitions, 747 flow [2022-10-17 10:42:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:42:06,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-10-17 10:42:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1536 transitions. [2022-10-17 10:42:06,136 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.843956043956044 [2022-10-17 10:42:06,136 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1536 transitions. [2022-10-17 10:42:06,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1536 transitions. [2022-10-17 10:42:06,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:06,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1536 transitions. [2022-10-17 10:42:06,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.15384615384616) internal successors, (1536), 13 states have internal predecessors, (1536), 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) [2022-10-17 10:42:06,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-10-17 10:42:06,149 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-10-17 10:42:06,149 INFO L175 Difference]: Start difference. First operand has 145 places, 123 transitions, 329 flow. Second operand 13 states and 1536 transitions. [2022-10-17 10:42:06,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 165 transitions, 747 flow [2022-10-17 10:42:06,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 165 transitions, 732 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-10-17 10:42:06,165 INFO L231 Difference]: Finished difference. Result has 157 places, 126 transitions, 419 flow [2022-10-17 10:42:06,165 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=419, PETRI_PLACES=157, PETRI_TRANSITIONS=126} [2022-10-17 10:42:06,168 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2022-10-17 10:42:06,168 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 126 transitions, 419 flow [2022-10-17 10:42:06,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 114.41666666666667) internal successors, (1373), 12 states have internal predecessors, (1373), 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) [2022-10-17 10:42:06,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:06,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:06,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:42:06,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1543003648, now seen corresponding path program 1 times [2022-10-17 10:42:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:06,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085711813] [2022-10-17 10:42:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:06,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:07,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:07,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085711813] [2022-10-17 10:42:07,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085711813] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:07,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:07,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-17 10:42:07,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127604735] [2022-10-17 10:42:07,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:07,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-17 10:42:07,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:42:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:42:07,377 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 140 [2022-10-17 10:42:07,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 126 transitions, 419 flow. Second operand has 13 states, 13 states have (on average 113.38461538461539) internal successors, (1474), 13 states have internal predecessors, (1474), 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) [2022-10-17 10:42:07,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:07,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 140 [2022-10-17 10:42:07,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:08,516 INFO L130 PetriNetUnfolder]: 1207/2638 cut-off events. [2022-10-17 10:42:08,516 INFO L131 PetriNetUnfolder]: For 16219/16472 co-relation queries the response was YES. [2022-10-17 10:42:08,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11568 conditions, 2638 events. 1207/2638 cut-off events. For 16219/16472 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 18994 event pairs, 705 based on Foata normal form. 52/2610 useless extension candidates. Maximal degree in co-relation 11485. Up to 1375 conditions per place. [2022-10-17 10:42:08,558 INFO L137 encePairwiseOnDemand]: 125/140 looper letters, 36 selfloop transitions, 20 changer transitions 43/195 dead transitions. [2022-10-17 10:42:08,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 195 transitions, 1281 flow [2022-10-17 10:42:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-17 10:42:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-10-17 10:42:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1989 transitions. [2022-10-17 10:42:08,567 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8357142857142857 [2022-10-17 10:42:08,567 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1989 transitions. [2022-10-17 10:42:08,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1989 transitions. [2022-10-17 10:42:08,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:08,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1989 transitions. [2022-10-17 10:42:08,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 117.0) internal successors, (1989), 17 states have internal predecessors, (1989), 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) [2022-10-17 10:42:08,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 140.0) internal successors, (2520), 18 states have internal predecessors, (2520), 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) [2022-10-17 10:42:08,582 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 140.0) internal successors, (2520), 18 states have internal predecessors, (2520), 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) [2022-10-17 10:42:08,583 INFO L175 Difference]: Start difference. First operand has 157 places, 126 transitions, 419 flow. Second operand 17 states and 1989 transitions. [2022-10-17 10:42:08,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 195 transitions, 1281 flow [2022-10-17 10:42:08,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 195 transitions, 1046 flow, removed 105 selfloop flow, removed 11 redundant places. [2022-10-17 10:42:08,614 INFO L231 Difference]: Finished difference. Result has 167 places, 140 transitions, 576 flow [2022-10-17 10:42:08,615 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=576, PETRI_PLACES=167, PETRI_TRANSITIONS=140} [2022-10-17 10:42:08,616 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 20 predicate places. [2022-10-17 10:42:08,616 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 140 transitions, 576 flow [2022-10-17 10:42:08,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 113.38461538461539) internal successors, (1474), 13 states have internal predecessors, (1474), 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) [2022-10-17 10:42:08,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:08,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:08,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:42:08,618 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:08,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:08,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1252361061, now seen corresponding path program 1 times [2022-10-17 10:42:08,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:08,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655488721] [2022-10-17 10:42:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:08,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:09,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:09,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655488721] [2022-10-17 10:42:09,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655488721] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:09,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:09,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:42:09,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319355413] [2022-10-17 10:42:09,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:09,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:42:09,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:09,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:42:09,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:42:09,081 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 140 [2022-10-17 10:42:09,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 140 transitions, 576 flow. Second operand has 8 states, 8 states have (on average 117.75) internal successors, (942), 8 states have internal predecessors, (942), 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) [2022-10-17 10:42:09,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:09,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 140 [2022-10-17 10:42:09,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:10,239 INFO L130 PetriNetUnfolder]: 1409/3114 cut-off events. [2022-10-17 10:42:10,239 INFO L131 PetriNetUnfolder]: For 22662/23176 co-relation queries the response was YES. [2022-10-17 10:42:10,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14747 conditions, 3114 events. 1409/3114 cut-off events. For 22662/23176 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 22419 event pairs, 443 based on Foata normal form. 64/3069 useless extension candidates. Maximal degree in co-relation 14660. Up to 1130 conditions per place. [2022-10-17 10:42:10,276 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 51 selfloop transitions, 11 changer transitions 46/208 dead transitions. [2022-10-17 10:42:10,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 208 transitions, 1450 flow [2022-10-17 10:42:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:42:10,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-10-17 10:42:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1596 transitions. [2022-10-17 10:42:10,282 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8769230769230769 [2022-10-17 10:42:10,282 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1596 transitions. [2022-10-17 10:42:10,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1596 transitions. [2022-10-17 10:42:10,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:10,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1596 transitions. [2022-10-17 10:42:10,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 122.76923076923077) internal successors, (1596), 13 states have internal predecessors, (1596), 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) [2022-10-17 10:42:10,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-10-17 10:42:10,295 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-10-17 10:42:10,295 INFO L175 Difference]: Start difference. First operand has 167 places, 140 transitions, 576 flow. Second operand 13 states and 1596 transitions. [2022-10-17 10:42:10,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 208 transitions, 1450 flow [2022-10-17 10:42:10,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 208 transitions, 1280 flow, removed 81 selfloop flow, removed 10 redundant places. [2022-10-17 10:42:10,338 INFO L231 Difference]: Finished difference. Result has 170 places, 145 transitions, 642 flow [2022-10-17 10:42:10,339 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=642, PETRI_PLACES=170, PETRI_TRANSITIONS=145} [2022-10-17 10:42:10,339 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 23 predicate places. [2022-10-17 10:42:10,339 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 145 transitions, 642 flow [2022-10-17 10:42:10,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 117.75) internal successors, (942), 8 states have internal predecessors, (942), 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) [2022-10-17 10:42:10,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:10,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:10,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:42:10,341 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:10,342 INFO L85 PathProgramCache]: Analyzing trace with hash 593096651, now seen corresponding path program 2 times [2022-10-17 10:42:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:10,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748460231] [2022-10-17 10:42:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:10,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:10,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748460231] [2022-10-17 10:42:10,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748460231] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:10,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:10,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:42:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412157248] [2022-10-17 10:42:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:10,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:42:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:10,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:42:10,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:42:10,977 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 140 [2022-10-17 10:42:10,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 145 transitions, 642 flow. Second operand has 10 states, 10 states have (on average 115.6) internal successors, (1156), 10 states have internal predecessors, (1156), 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) [2022-10-17 10:42:10,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:10,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 140 [2022-10-17 10:42:10,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:12,250 INFO L130 PetriNetUnfolder]: 1365/3032 cut-off events. [2022-10-17 10:42:12,251 INFO L131 PetriNetUnfolder]: For 30637/31277 co-relation queries the response was YES. [2022-10-17 10:42:12,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16934 conditions, 3032 events. 1365/3032 cut-off events. For 30637/31277 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 21721 event pairs, 329 based on Foata normal form. 77/3008 useless extension candidates. Maximal degree in co-relation 16843. Up to 1119 conditions per place. [2022-10-17 10:42:12,310 INFO L137 encePairwiseOnDemand]: 128/140 looper letters, 52 selfloop transitions, 16 changer transitions 46/212 dead transitions. [2022-10-17 10:42:12,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 212 transitions, 1742 flow [2022-10-17 10:42:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:42:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-10-17 10:42:12,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1800 transitions. [2022-10-17 10:42:12,317 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-10-17 10:42:12,317 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1800 transitions. [2022-10-17 10:42:12,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1800 transitions. [2022-10-17 10:42:12,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:12,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1800 transitions. [2022-10-17 10:42:12,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 120.0) internal successors, (1800), 15 states have internal predecessors, (1800), 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) [2022-10-17 10:42:12,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 140.0) internal successors, (2240), 16 states have internal predecessors, (2240), 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) [2022-10-17 10:42:12,333 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 140.0) internal successors, (2240), 16 states have internal predecessors, (2240), 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) [2022-10-17 10:42:12,333 INFO L175 Difference]: Start difference. First operand has 170 places, 145 transitions, 642 flow. Second operand 15 states and 1800 transitions. [2022-10-17 10:42:12,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 212 transitions, 1742 flow [2022-10-17 10:42:12,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 212 transitions, 1653 flow, removed 39 selfloop flow, removed 7 redundant places. [2022-10-17 10:42:12,392 INFO L231 Difference]: Finished difference. Result has 178 places, 149 transitions, 744 flow [2022-10-17 10:42:12,393 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=744, PETRI_PLACES=178, PETRI_TRANSITIONS=149} [2022-10-17 10:42:12,394 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 31 predicate places. [2022-10-17 10:42:12,394 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 149 transitions, 744 flow [2022-10-17 10:42:12,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.6) internal successors, (1156), 10 states have internal predecessors, (1156), 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) [2022-10-17 10:42:12,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:12,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:12,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:42:12,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash 892947969, now seen corresponding path program 1 times [2022-10-17 10:42:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:12,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365430571] [2022-10-17 10:42:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:13,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:13,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365430571] [2022-10-17 10:42:13,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365430571] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:13,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:13,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-17 10:42:13,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657875526] [2022-10-17 10:42:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:13,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:42:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:42:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:42:13,503 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-10-17 10:42:13,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 149 transitions, 744 flow. Second operand has 11 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 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) [2022-10-17 10:42:13,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:13,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-10-17 10:42:13,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:15,000 INFO L130 PetriNetUnfolder]: 1533/3309 cut-off events. [2022-10-17 10:42:15,001 INFO L131 PetriNetUnfolder]: For 62970/63819 co-relation queries the response was YES. [2022-10-17 10:42:15,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23569 conditions, 3309 events. 1533/3309 cut-off events. For 62970/63819 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 23818 event pairs, 209 based on Foata normal form. 99/3305 useless extension candidates. Maximal degree in co-relation 23470. Up to 1225 conditions per place. [2022-10-17 10:42:15,055 INFO L137 encePairwiseOnDemand]: 126/140 looper letters, 56 selfloop transitions, 28 changer transitions 56/237 dead transitions. [2022-10-17 10:42:15,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 237 transitions, 2529 flow [2022-10-17 10:42:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-17 10:42:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-10-17 10:42:15,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2373 transitions. [2022-10-17 10:42:15,063 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8475 [2022-10-17 10:42:15,063 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2373 transitions. [2022-10-17 10:42:15,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2373 transitions. [2022-10-17 10:42:15,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:15,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2373 transitions. [2022-10-17 10:42:15,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 118.65) internal successors, (2373), 20 states have internal predecessors, (2373), 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) [2022-10-17 10:42:15,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 140.0) internal successors, (2940), 21 states have internal predecessors, (2940), 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) [2022-10-17 10:42:15,097 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 140.0) internal successors, (2940), 21 states have internal predecessors, (2940), 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) [2022-10-17 10:42:15,097 INFO L175 Difference]: Start difference. First operand has 178 places, 149 transitions, 744 flow. Second operand 20 states and 2373 transitions. [2022-10-17 10:42:15,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 237 transitions, 2529 flow [2022-10-17 10:42:15,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 237 transitions, 2119 flow, removed 197 selfloop flow, removed 12 redundant places. [2022-10-17 10:42:15,184 INFO L231 Difference]: Finished difference. Result has 190 places, 156 transitions, 936 flow [2022-10-17 10:42:15,185 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=936, PETRI_PLACES=190, PETRI_TRANSITIONS=156} [2022-10-17 10:42:15,188 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 43 predicate places. [2022-10-17 10:42:15,188 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 156 transitions, 936 flow [2022-10-17 10:42:15,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 114.63636363636364) internal successors, (1261), 11 states have internal predecessors, (1261), 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) [2022-10-17 10:42:15,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:15,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:15,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:42:15,191 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:15,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:15,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1172407886, now seen corresponding path program 1 times [2022-10-17 10:42:15,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:15,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56265136] [2022-10-17 10:42:15,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:15,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:15,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:15,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56265136] [2022-10-17 10:42:15,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56265136] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:15,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:15,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:42:15,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629711748] [2022-10-17 10:42:15,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:15,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:42:15,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:15,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:42:15,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:42:15,450 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 140 [2022-10-17 10:42:15,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 156 transitions, 936 flow. Second operand has 7 states, 7 states have (on average 116.57142857142857) internal successors, (816), 7 states have internal predecessors, (816), 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) [2022-10-17 10:42:15,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:15,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 140 [2022-10-17 10:42:15,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:17,120 INFO L130 PetriNetUnfolder]: 2848/6298 cut-off events. [2022-10-17 10:42:17,120 INFO L131 PetriNetUnfolder]: For 159720/163705 co-relation queries the response was YES. [2022-10-17 10:42:17,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46512 conditions, 6298 events. 2848/6298 cut-off events. For 159720/163705 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 53723 event pairs, 389 based on Foata normal form. 182/6231 useless extension candidates. Maximal degree in co-relation 46409. Up to 2269 conditions per place. [2022-10-17 10:42:17,353 INFO L137 encePairwiseOnDemand]: 134/140 looper letters, 87 selfloop transitions, 2 changer transitions 40/235 dead transitions. [2022-10-17 10:42:17,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 235 transitions, 2512 flow [2022-10-17 10:42:17,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:42:17,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-10-17 10:42:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 854 transitions. [2022-10-17 10:42:17,356 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8714285714285714 [2022-10-17 10:42:17,356 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 854 transitions. [2022-10-17 10:42:17,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 854 transitions. [2022-10-17 10:42:17,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:17,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 854 transitions. [2022-10-17 10:42:17,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2022-10-17 10:42:17,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 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) [2022-10-17 10:42:17,361 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 140.0) internal successors, (1120), 8 states have internal predecessors, (1120), 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) [2022-10-17 10:42:17,362 INFO L175 Difference]: Start difference. First operand has 190 places, 156 transitions, 936 flow. Second operand 7 states and 854 transitions. [2022-10-17 10:42:17,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 235 transitions, 2512 flow [2022-10-17 10:42:17,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 235 transitions, 2239 flow, removed 134 selfloop flow, removed 12 redundant places. [2022-10-17 10:42:17,663 INFO L231 Difference]: Finished difference. Result has 177 places, 156 transitions, 859 flow [2022-10-17 10:42:17,664 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=859, PETRI_PLACES=177, PETRI_TRANSITIONS=156} [2022-10-17 10:42:17,665 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 30 predicate places. [2022-10-17 10:42:17,665 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 156 transitions, 859 flow [2022-10-17 10:42:17,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.57142857142857) internal successors, (816), 7 states have internal predecessors, (816), 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) [2022-10-17 10:42:17,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:17,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:17,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:42:17,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash -967350092, now seen corresponding path program 2 times [2022-10-17 10:42:17,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:17,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585920786] [2022-10-17 10:42:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:17,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:17,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:17,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585920786] [2022-10-17 10:42:17,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585920786] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:17,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:17,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:42:17,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037817552] [2022-10-17 10:42:17,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:17,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:42:17,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:17,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:42:17,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:42:17,930 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-10-17 10:42:17,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 156 transitions, 859 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 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) [2022-10-17 10:42:17,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:17,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-10-17 10:42:17,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand