./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- 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-8393723 [2022-11-18 19:40:12,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:40:12,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:40:12,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:40:12,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:40:12,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:40:12,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:40:12,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:40:12,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:40:12,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:40:12,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:40:12,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:40:12,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:40:12,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:40:12,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:40:12,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:40:12,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:40:12,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:40:12,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:40:12,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:40:12,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:40:12,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:40:12,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:40:12,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:40:12,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:40:12,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:40:12,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:40:12,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:40:12,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:40:12,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:40:12,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:40:12,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:40:12,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:40:12,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:40:12,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:40:12,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:40:12,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:40:12,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:40:12,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:40:12,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:40:12,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:40:12,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:40:12,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:40:12,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:40:12,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:40:12,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:40:12,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:40:12,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:40:12,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:40:12,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:40:12,800 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:40:12,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:40:12,801 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:40:12,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:40:12,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:40:12,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:40:12,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:40:12,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:40:12,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:40:12,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:40:12,803 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:40:12,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:40:12,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:40:12,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:40:12,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:40:12,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:40:12,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:40:12,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:40:12,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:12,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:40:12,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:40:12,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:40:12,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:40:12,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:40:12,808 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:40:12,808 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:40:12,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:40:12,809 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_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2022-11-18 19:40:13,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:40:13,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:40:13,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:40:13,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:40:13,168 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:40:13,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-11-18 19:40:13,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/data/0618336e5/b6dbb35dbe5245a7853a2fdcf423f3a4/FLAG5a0f8d3c4 [2022-11-18 19:40:13,686 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:40:13,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2022-11-18 19:40:13,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/data/0618336e5/b6dbb35dbe5245a7853a2fdcf423f3a4/FLAG5a0f8d3c4 [2022-11-18 19:40:14,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/data/0618336e5/b6dbb35dbe5245a7853a2fdcf423f3a4 [2022-11-18 19:40:14,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:40:14,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:40:14,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:14,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:40:14,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:40:14,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f8cc3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14, skipping insertion in model container [2022-11-18 19:40:14,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:40:14,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:40:14,374 WARN L234 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_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-11-18 19:40:14,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:14,391 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:40:14,433 WARN L234 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_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2022-11-18 19:40:14,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:14,453 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:40:14,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14 WrapperNode [2022-11-18 19:40:14,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:14,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:14,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:40:14,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:40:14,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,557 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 645 [2022-11-18 19:40:14,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:14,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:40:14,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:40:14,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:40:14,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:40:14,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:40:14,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:40:14,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:40:14,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (1/1) ... [2022-11-18 19:40:14,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:14,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:14,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:40:14,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ae331d8-37f6-4cab-b1c4-c7911bfa01d5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:40:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:40:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:40:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:40:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:40:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:40:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:40:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:40:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:40:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 19:40:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 19:40:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 19:40:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 19:40:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:40:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:40:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:40:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:40:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:40:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:40:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:40:14,782 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:40:14,975 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:40:14,977 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:40:16,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:40:16,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:40:16,855 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 19:40:16,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:16 BoogieIcfgContainer [2022-11-18 19:40:16,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:40:16,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:40:16,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:40:16,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:40:16,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:40:14" (1/3) ... [2022-11-18 19:40:16,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf86fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:16, skipping insertion in model container [2022-11-18 19:40:16,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:14" (2/3) ... [2022-11-18 19:40:16,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf86fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:16, skipping insertion in model container [2022-11-18 19:40:16,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:16" (3/3) ... [2022-11-18 19:40:16,870 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2022-11-18 19:40:16,880 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:40:16,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:40:16,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2022-11-18 19:40:16,892 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:40:17,108 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-18 19:40:17,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 467 transitions, 966 flow [2022-11-18 19:40:17,442 INFO L130 PetriNetUnfolder]: 23/463 cut-off events. [2022-11-18 19:40:17,442 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 19:40:17,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 463 events. 23/463 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 610 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 378. Up to 2 conditions per place. [2022-11-18 19:40:17,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 457 places, 467 transitions, 966 flow [2022-11-18 19:40:17,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 441 transitions, 906 flow [2022-11-18 19:40:17,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:40:17,490 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;@2b01537d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:40:17,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2022-11-18 19:40:17,496 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-18 19:40:17,497 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:17,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:17,499 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:17,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:17,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:17,505 INFO L85 PathProgramCache]: Analyzing trace with hash 365661302, now seen corresponding path program 1 times [2022-11-18 19:40:17,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:17,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711473714] [2022-11-18 19:40:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:17,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:17,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:17,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711473714] [2022-11-18 19:40:17,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711473714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:17,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:17,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:17,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186850277] [2022-11-18 19:40:17,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:17,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:17,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:17,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 467 [2022-11-18 19:40:17,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 441 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:17,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:17,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 467 [2022-11-18 19:40:17,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:18,850 INFO L130 PetriNetUnfolder]: 748/1795 cut-off events. [2022-11-18 19:40:18,851 INFO L131 PetriNetUnfolder]: For 314/420 co-relation queries the response was YES. [2022-11-18 19:40:18,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 1795 events. 748/1795 cut-off events. For 314/420 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9172 event pairs, 485 based on Foata normal form. 265/1823 useless extension candidates. Maximal degree in co-relation 2559. Up to 1013 conditions per place. [2022-11-18 19:40:18,871 INFO L137 encePairwiseOnDemand]: 382/467 looper letters, 31 selfloop transitions, 2 changer transitions 6/358 dead transitions. [2022-11-18 19:40:18,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 358 transitions, 806 flow [2022-11-18 19:40:18,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:18,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2022-11-18 19:40:18,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8301213418986438 [2022-11-18 19:40:18,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2022-11-18 19:40:18,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2022-11-18 19:40:18,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:18,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2022-11-18 19:40:18,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:18,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:18,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:18,924 INFO L175 Difference]: Start difference. First operand has 432 places, 441 transitions, 906 flow. Second operand 3 states and 1163 transitions. [2022-11-18 19:40:18,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 358 transitions, 806 flow [2022-11-18 19:40:18,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 358 transitions, 790 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 19:40:18,946 INFO L231 Difference]: Finished difference. Result has 355 places, 352 transitions, 716 flow [2022-11-18 19:40:18,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=355, PETRI_TRANSITIONS=352} [2022-11-18 19:40:18,955 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -77 predicate places. [2022-11-18 19:40:18,955 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 352 transitions, 716 flow [2022-11-18 19:40:18,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:18,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:18,956 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:18,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:40:18,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:18,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1773310764, now seen corresponding path program 1 times [2022-11-18 19:40:18,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:18,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509312761] [2022-11-18 19:40:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:18,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:19,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:19,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509312761] [2022-11-18 19:40:19,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509312761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:19,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:19,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047748114] [2022-11-18 19:40:19,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:19,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:19,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:19,059 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 467 [2022-11-18 19:40:19,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 352 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:19,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:19,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 467 [2022-11-18 19:40:19,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:19,818 INFO L130 PetriNetUnfolder]: 748/1788 cut-off events. [2022-11-18 19:40:19,818 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:19,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2876 conditions, 1788 events. 748/1788 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9206 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2833. Up to 1013 conditions per place. [2022-11-18 19:40:19,833 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 31 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2022-11-18 19:40:19,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 351 transitions, 780 flow [2022-11-18 19:40:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:19,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2022-11-18 19:40:19,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7715917201998572 [2022-11-18 19:40:19,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1081 transitions. [2022-11-18 19:40:19,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1081 transitions. [2022-11-18 19:40:19,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:19,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1081 transitions. [2022-11-18 19:40:19,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:19,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:19,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:19,846 INFO L175 Difference]: Start difference. First operand has 355 places, 352 transitions, 716 flow. Second operand 3 states and 1081 transitions. [2022-11-18 19:40:19,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 351 transitions, 780 flow [2022-11-18 19:40:19,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 351 transitions, 776 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:19,856 INFO L231 Difference]: Finished difference. Result has 348 places, 351 transitions, 714 flow [2022-11-18 19:40:19,857 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=348, PETRI_TRANSITIONS=351} [2022-11-18 19:40:19,858 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -84 predicate places. [2022-11-18 19:40:19,858 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 351 transitions, 714 flow [2022-11-18 19:40:19,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:19,859 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:19,859 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:19,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:40:19,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:19,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1201788846, now seen corresponding path program 1 times [2022-11-18 19:40:19,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:19,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023506995] [2022-11-18 19:40:19,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:19,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:19,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:19,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023506995] [2022-11-18 19:40:19,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023506995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:19,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:19,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:19,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434170340] [2022-11-18 19:40:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:19,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:19,954 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:19,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 351 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:19,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:19,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:19,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:20,604 INFO L130 PetriNetUnfolder]: 748/1787 cut-off events. [2022-11-18 19:40:20,604 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:20,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2872 conditions, 1787 events. 748/1787 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9203 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2822. Up to 1010 conditions per place. [2022-11-18 19:40:20,618 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-11-18 19:40:20,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 350 transitions, 772 flow [2022-11-18 19:40:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:20,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:20,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:20,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:20,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:20,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:20,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:20,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:20,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:20,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:20,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:20,632 INFO L175 Difference]: Start difference. First operand has 348 places, 351 transitions, 714 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:20,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 350 transitions, 772 flow [2022-11-18 19:40:20,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 350 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:20,639 INFO L231 Difference]: Finished difference. Result has 347 places, 350 transitions, 712 flow [2022-11-18 19:40:20,639 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=347, PETRI_TRANSITIONS=350} [2022-11-18 19:40:20,640 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -85 predicate places. [2022-11-18 19:40:20,641 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 350 transitions, 712 flow [2022-11-18 19:40:20,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:20,642 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:20,642 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:20,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:40:20,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:20,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:20,643 INFO L85 PathProgramCache]: Analyzing trace with hash -286628802, now seen corresponding path program 1 times [2022-11-18 19:40:20,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:20,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923915969] [2022-11-18 19:40:20,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:20,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:20,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923915969] [2022-11-18 19:40:20,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923915969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:20,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:20,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:20,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846947985] [2022-11-18 19:40:20,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:20,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:20,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:20,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:20,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:20,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:20,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 350 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:20,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:20,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:20,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:21,478 INFO L130 PetriNetUnfolder]: 748/1786 cut-off events. [2022-11-18 19:40:21,478 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:21,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1786 events. 748/1786 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9199 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2814. Up to 1010 conditions per place. [2022-11-18 19:40:21,496 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-11-18 19:40:21,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 349 transitions, 770 flow [2022-11-18 19:40:21,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:21,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:21,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:21,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:21,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:21,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:21,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:21,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:21,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:21,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:21,521 INFO L175 Difference]: Start difference. First operand has 347 places, 350 transitions, 712 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:21,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 349 transitions, 770 flow [2022-11-18 19:40:21,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 349 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:21,530 INFO L231 Difference]: Finished difference. Result has 346 places, 349 transitions, 710 flow [2022-11-18 19:40:21,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=349} [2022-11-18 19:40:21,533 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -86 predicate places. [2022-11-18 19:40:21,533 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 349 transitions, 710 flow [2022-11-18 19:40:21,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:21,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:21,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:21,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:40:21,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 30038530, now seen corresponding path program 1 times [2022-11-18 19:40:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:21,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384634097] [2022-11-18 19:40:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:21,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:21,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:21,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384634097] [2022-11-18 19:40:21,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384634097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:21,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:21,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:21,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960227639] [2022-11-18 19:40:21,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:21,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:21,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:21,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:21,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:21,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 349 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:21,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:21,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:21,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:22,236 INFO L130 PetriNetUnfolder]: 748/1785 cut-off events. [2022-11-18 19:40:22,236 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:22,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1785 events. 748/1785 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9202 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2806. Up to 1010 conditions per place. [2022-11-18 19:40:22,254 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-11-18 19:40:22,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 348 transitions, 768 flow [2022-11-18 19:40:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:22,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:22,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:22,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:22,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:22,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:22,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:22,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,268 INFO L175 Difference]: Start difference. First operand has 346 places, 349 transitions, 710 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:22,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 348 transitions, 768 flow [2022-11-18 19:40:22,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 348 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:22,276 INFO L231 Difference]: Finished difference. Result has 345 places, 348 transitions, 708 flow [2022-11-18 19:40:22,277 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=345, PETRI_TRANSITIONS=348} [2022-11-18 19:40:22,278 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -87 predicate places. [2022-11-18 19:40:22,278 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 348 transitions, 708 flow [2022-11-18 19:40:22,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:22,279 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:22,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:40:22,280 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:22,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:22,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1040541063, now seen corresponding path program 1 times [2022-11-18 19:40:22,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:22,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446240161] [2022-11-18 19:40:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:22,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:22,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:22,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446240161] [2022-11-18 19:40:22,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446240161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:22,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:22,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:22,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026032790] [2022-11-18 19:40:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:22,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:22,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:22,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:22,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:22,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:22,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 348 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:22,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:22,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:22,891 INFO L130 PetriNetUnfolder]: 748/1784 cut-off events. [2022-11-18 19:40:22,892 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:22,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1784 events. 748/1784 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9163 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2798. Up to 1010 conditions per place. [2022-11-18 19:40:22,905 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-11-18 19:40:22,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 347 transitions, 766 flow [2022-11-18 19:40:22,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:22,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:22,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:22,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:22,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:22,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:22,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,917 INFO L175 Difference]: Start difference. First operand has 345 places, 348 transitions, 708 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:22,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 347 transitions, 766 flow [2022-11-18 19:40:22,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 347 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:22,924 INFO L231 Difference]: Finished difference. Result has 344 places, 347 transitions, 706 flow [2022-11-18 19:40:22,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=344, PETRI_TRANSITIONS=347} [2022-11-18 19:40:22,925 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -88 predicate places. [2022-11-18 19:40:22,926 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 347 transitions, 706 flow [2022-11-18 19:40:22,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:22,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:22,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:40:22,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:22,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:22,928 INFO L85 PathProgramCache]: Analyzing trace with hash 846226134, now seen corresponding path program 1 times [2022-11-18 19:40:22,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:22,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008957661] [2022-11-18 19:40:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:22,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:22,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008957661] [2022-11-18 19:40:22,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008957661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:22,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:22,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:22,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681106308] [2022-11-18 19:40:22,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:22,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:22,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:22,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:22,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:22,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 347 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:22,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:22,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:22,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:23,530 INFO L130 PetriNetUnfolder]: 748/1783 cut-off events. [2022-11-18 19:40:23,530 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:23,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1783 events. 748/1783 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9183 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2790. Up to 1010 conditions per place. [2022-11-18 19:40:23,544 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-11-18 19:40:23,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 764 flow [2022-11-18 19:40:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:23,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:23,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:23,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:23,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:23,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:23,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:23,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:23,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:23,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:23,555 INFO L175 Difference]: Start difference. First operand has 344 places, 347 transitions, 706 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:23,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 764 flow [2022-11-18 19:40:23,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 346 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:23,561 INFO L231 Difference]: Finished difference. Result has 343 places, 346 transitions, 704 flow [2022-11-18 19:40:23,562 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=343, PETRI_TRANSITIONS=346} [2022-11-18 19:40:23,563 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -89 predicate places. [2022-11-18 19:40:23,563 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 346 transitions, 704 flow [2022-11-18 19:40:23,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:23,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:23,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:23,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:40:23,565 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash -753122815, now seen corresponding path program 1 times [2022-11-18 19:40:23,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:23,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802236381] [2022-11-18 19:40:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:23,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:23,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802236381] [2022-11-18 19:40:23,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802236381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:23,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:23,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911869486] [2022-11-18 19:40:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:23,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:23,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:23,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:23,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:23,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 346 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:23,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:23,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:23,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:24,217 INFO L130 PetriNetUnfolder]: 748/1782 cut-off events. [2022-11-18 19:40:24,218 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:24,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 1782 events. 748/1782 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9207 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2782. Up to 1010 conditions per place. [2022-11-18 19:40:24,232 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/345 dead transitions. [2022-11-18 19:40:24,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 345 transitions, 762 flow [2022-11-18 19:40:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:24,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:24,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:24,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:24,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:24,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:24,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:24,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:24,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:24,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:24,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:24,254 INFO L175 Difference]: Start difference. First operand has 343 places, 346 transitions, 704 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:24,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 345 transitions, 762 flow [2022-11-18 19:40:24,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 345 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:24,261 INFO L231 Difference]: Finished difference. Result has 342 places, 345 transitions, 702 flow [2022-11-18 19:40:24,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=342, PETRI_TRANSITIONS=345} [2022-11-18 19:40:24,262 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -90 predicate places. [2022-11-18 19:40:24,263 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 345 transitions, 702 flow [2022-11-18 19:40:24,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:24,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:24,264 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:24,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:40:24,264 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1061599239, now seen corresponding path program 1 times [2022-11-18 19:40:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:24,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177656946] [2022-11-18 19:40:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:24,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:24,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:24,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177656946] [2022-11-18 19:40:24,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177656946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:24,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:24,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576469507] [2022-11-18 19:40:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:24,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:24,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:24,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:24,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 345 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:24,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:24,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:24,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:24,959 INFO L130 PetriNetUnfolder]: 748/1781 cut-off events. [2022-11-18 19:40:24,959 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:24,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1781 events. 748/1781 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9207 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2774. Up to 1010 conditions per place. [2022-11-18 19:40:24,984 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 28 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2022-11-18 19:40:24,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 344 transitions, 760 flow [2022-11-18 19:40:24,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2022-11-18 19:40:24,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7758743754461099 [2022-11-18 19:40:24,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2022-11-18 19:40:24,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2022-11-18 19:40:24,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:24,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2022-11-18 19:40:24,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:24,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,000 INFO L175 Difference]: Start difference. First operand has 342 places, 345 transitions, 702 flow. Second operand 3 states and 1087 transitions. [2022-11-18 19:40:25,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 344 transitions, 760 flow [2022-11-18 19:40:25,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:25,010 INFO L231 Difference]: Finished difference. Result has 341 places, 344 transitions, 700 flow [2022-11-18 19:40:25,011 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=700, PETRI_PLACES=341, PETRI_TRANSITIONS=344} [2022-11-18 19:40:25,012 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-18 19:40:25,012 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 344 transitions, 700 flow [2022-11-18 19:40:25,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,013 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:25,013 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:25,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:40:25,013 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:25,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1247525847, now seen corresponding path program 1 times [2022-11-18 19:40:25,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:25,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762996016] [2022-11-18 19:40:25,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:25,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:25,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:25,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762996016] [2022-11-18 19:40:25,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762996016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:25,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:25,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:25,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360665538] [2022-11-18 19:40:25,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:25,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:25,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:25,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:25,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 344 transitions, 700 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:25,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:25,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:25,600 INFO L130 PetriNetUnfolder]: 748/1780 cut-off events. [2022-11-18 19:40:25,600 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:25,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 1780 events. 748/1780 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9211 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2761. Up to 1005 conditions per place. [2022-11-18 19:40:25,610 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/343 dead transitions. [2022-11-18 19:40:25,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 343 transitions, 750 flow [2022-11-18 19:40:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:25,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-18 19:40:25,614 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-18 19:40:25,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-18 19:40:25,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-18 19:40:25,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:25,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-18 19:40:25,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,622 INFO L175 Difference]: Start difference. First operand has 341 places, 344 transitions, 700 flow. Second operand 3 states and 1092 transitions. [2022-11-18 19:40:25,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 343 transitions, 750 flow [2022-11-18 19:40:25,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 343 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:25,627 INFO L231 Difference]: Finished difference. Result has 340 places, 343 transitions, 696 flow [2022-11-18 19:40:25,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=340, PETRI_TRANSITIONS=343} [2022-11-18 19:40:25,629 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -92 predicate places. [2022-11-18 19:40:25,629 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 343 transitions, 696 flow [2022-11-18 19:40:25,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:25,630 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:25,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:40:25,630 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:25,631 INFO L85 PathProgramCache]: Analyzing trace with hash -826139289, now seen corresponding path program 1 times [2022-11-18 19:40:25,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:25,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413097478] [2022-11-18 19:40:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:25,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:25,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:25,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413097478] [2022-11-18 19:40:25,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413097478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:25,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:25,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:25,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455903055] [2022-11-18 19:40:25,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:25,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:25,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:25,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:25,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:25,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:25,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 343 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:25,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:25,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:25,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:26,192 INFO L130 PetriNetUnfolder]: 748/1779 cut-off events. [2022-11-18 19:40:26,193 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:26,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2860 conditions, 1779 events. 748/1779 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9204 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2761. Up to 1007 conditions per place. [2022-11-18 19:40:26,205 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 25 selfloop transitions, 2 changer transitions 0/342 dead transitions. [2022-11-18 19:40:26,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 342 transitions, 748 flow [2022-11-18 19:40:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2022-11-18 19:40:26,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7801570306923626 [2022-11-18 19:40:26,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2022-11-18 19:40:26,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2022-11-18 19:40:26,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:26,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2022-11-18 19:40:26,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:26,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:26,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:26,216 INFO L175 Difference]: Start difference. First operand has 340 places, 343 transitions, 696 flow. Second operand 3 states and 1093 transitions. [2022-11-18 19:40:26,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 342 transitions, 748 flow [2022-11-18 19:40:26,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 342 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:26,222 INFO L231 Difference]: Finished difference. Result has 340 places, 342 transitions, 697 flow [2022-11-18 19:40:26,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=340, PETRI_TRANSITIONS=342} [2022-11-18 19:40:26,224 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -92 predicate places. [2022-11-18 19:40:26,224 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 342 transitions, 697 flow [2022-11-18 19:40:26,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:26,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:26,225 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:26,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:40:26,225 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:26,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:26,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1351259817, now seen corresponding path program 1 times [2022-11-18 19:40:26,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:26,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065817298] [2022-11-18 19:40:26,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:26,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:26,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:26,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065817298] [2022-11-18 19:40:26,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065817298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:26,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:26,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:26,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491286260] [2022-11-18 19:40:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:26,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:26,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:26,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:26,765 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 467 [2022-11-18 19:40:26,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 342 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:26,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:26,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 467 [2022-11-18 19:40:26,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:29,460 INFO L130 PetriNetUnfolder]: 4978/7413 cut-off events. [2022-11-18 19:40:29,460 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:40:29,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13905 conditions, 7413 events. 4978/7413 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 36121 event pairs, 3467 based on Foata normal form. 0/6982 useless extension candidates. Maximal degree in co-relation 13807. Up to 6408 conditions per place. [2022-11-18 19:40:29,510 INFO L137 encePairwiseOnDemand]: 455/467 looper letters, 68 selfloop transitions, 10 changer transitions 0/340 dead transitions. [2022-11-18 19:40:29,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 340 transitions, 849 flow [2022-11-18 19:40:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:29,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1898 transitions. [2022-11-18 19:40:29,517 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6773733047822984 [2022-11-18 19:40:29,517 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1898 transitions. [2022-11-18 19:40:29,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1898 transitions. [2022-11-18 19:40:29,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:29,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1898 transitions. [2022-11-18 19:40:29,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.3333333333333) internal successors, (1898), 6 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:29,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:29,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:29,532 INFO L175 Difference]: Start difference. First operand has 340 places, 342 transitions, 697 flow. Second operand 6 states and 1898 transitions. [2022-11-18 19:40:29,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 340 transitions, 849 flow [2022-11-18 19:40:29,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 340 transitions, 845 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:29,540 INFO L231 Difference]: Finished difference. Result has 341 places, 340 transitions, 709 flow [2022-11-18 19:40:29,540 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=341, PETRI_TRANSITIONS=340} [2022-11-18 19:40:29,541 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-18 19:40:29,541 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 340 transitions, 709 flow [2022-11-18 19:40:29,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.8333333333333) internal successors, (1829), 6 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:29,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:29,543 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:29,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:40:29,543 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:29,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:29,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1069768024, now seen corresponding path program 1 times [2022-11-18 19:40:29,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:29,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191442038] [2022-11-18 19:40:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:29,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:29,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:29,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191442038] [2022-11-18 19:40:29,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191442038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:29,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:29,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:29,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488717714] [2022-11-18 19:40:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:29,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:29,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:29,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:29,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 340 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:29,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:29,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:29,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:30,307 INFO L130 PetriNetUnfolder]: 748/1776 cut-off events. [2022-11-18 19:40:30,307 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:30,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1776 events. 748/1776 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9203 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2833. Up to 1005 conditions per place. [2022-11-18 19:40:30,325 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/339 dead transitions. [2022-11-18 19:40:30,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 339 transitions, 759 flow [2022-11-18 19:40:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:30,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-18 19:40:30,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-18 19:40:30,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-18 19:40:30,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-18 19:40:30,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:30,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-18 19:40:30,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:30,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:30,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:30,339 INFO L175 Difference]: Start difference. First operand has 341 places, 340 transitions, 709 flow. Second operand 3 states and 1092 transitions. [2022-11-18 19:40:30,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 339 transitions, 759 flow [2022-11-18 19:40:30,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 339 transitions, 739 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:30,348 INFO L231 Difference]: Finished difference. Result has 337 places, 339 transitions, 689 flow [2022-11-18 19:40:30,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=689, PETRI_PLACES=337, PETRI_TRANSITIONS=339} [2022-11-18 19:40:30,350 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -95 predicate places. [2022-11-18 19:40:30,350 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 339 transitions, 689 flow [2022-11-18 19:40:30,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:30,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:30,353 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:30,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:40:30,353 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1468943639, now seen corresponding path program 1 times [2022-11-18 19:40:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:30,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705920864] [2022-11-18 19:40:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:30,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:30,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705920864] [2022-11-18 19:40:30,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705920864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:30,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:30,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:30,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079044870] [2022-11-18 19:40:30,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:30,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:30,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:30,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:30,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 339 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:30,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:30,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:30,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:31,150 INFO L130 PetriNetUnfolder]: 748/1775 cut-off events. [2022-11-18 19:40:31,151 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:31,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 1775 events. 748/1775 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9206 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2758. Up to 1007 conditions per place. [2022-11-18 19:40:31,161 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 25 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2022-11-18 19:40:31,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 338 transitions, 741 flow [2022-11-18 19:40:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:31,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2022-11-18 19:40:31,164 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7801570306923626 [2022-11-18 19:40:31,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2022-11-18 19:40:31,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2022-11-18 19:40:31,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:31,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2022-11-18 19:40:31,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,172 INFO L175 Difference]: Start difference. First operand has 337 places, 339 transitions, 689 flow. Second operand 3 states and 1093 transitions. [2022-11-18 19:40:31,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 338 transitions, 741 flow [2022-11-18 19:40:31,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 338 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:31,177 INFO L231 Difference]: Finished difference. Result has 337 places, 338 transitions, 690 flow [2022-11-18 19:40:31,179 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=337, PETRI_TRANSITIONS=338} [2022-11-18 19:40:31,180 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -95 predicate places. [2022-11-18 19:40:31,180 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 338 transitions, 690 flow [2022-11-18 19:40:31,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:31,181 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:31,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:40:31,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:31,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash 576773140, now seen corresponding path program 1 times [2022-11-18 19:40:31,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:31,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851205611] [2022-11-18 19:40:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:31,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:31,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:31,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:31,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851205611] [2022-11-18 19:40:31,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851205611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:31,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:31,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:31,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013737857] [2022-11-18 19:40:31,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:31,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:31,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:31,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:31,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:31,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 338 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:31,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:31,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:31,755 INFO L130 PetriNetUnfolder]: 748/1773 cut-off events. [2022-11-18 19:40:31,755 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:31,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2858 conditions, 1773 events. 748/1773 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9196 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2758. Up to 1007 conditions per place. [2022-11-18 19:40:31,768 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 27 selfloop transitions, 1 changer transitions 0/336 dead transitions. [2022-11-18 19:40:31,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 336 transitions, 742 flow [2022-11-18 19:40:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2022-11-18 19:40:31,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7751605995717344 [2022-11-18 19:40:31,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2022-11-18 19:40:31,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2022-11-18 19:40:31,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:31,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2022-11-18 19:40:31,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,779 INFO L175 Difference]: Start difference. First operand has 337 places, 338 transitions, 690 flow. Second operand 3 states and 1086 transitions. [2022-11-18 19:40:31,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 336 transitions, 742 flow [2022-11-18 19:40:31,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 336 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:31,786 INFO L231 Difference]: Finished difference. Result has 335 places, 336 transitions, 684 flow [2022-11-18 19:40:31,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=335, PETRI_TRANSITIONS=336} [2022-11-18 19:40:31,788 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-18 19:40:31,788 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 336 transitions, 684 flow [2022-11-18 19:40:31,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:31,789 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:31,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:40:31,790 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:31,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash -962124482, now seen corresponding path program 1 times [2022-11-18 19:40:31,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:31,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181195605] [2022-11-18 19:40:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:31,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:31,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181195605] [2022-11-18 19:40:31,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181195605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:31,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:31,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:31,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58537840] [2022-11-18 19:40:31,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:31,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:31,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:31,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:31,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:31,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:31,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 336 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:31,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:31,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:31,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:32,344 INFO L130 PetriNetUnfolder]: 748/1772 cut-off events. [2022-11-18 19:40:32,344 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:32,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1772 events. 748/1772 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9183 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2754. Up to 1005 conditions per place. [2022-11-18 19:40:32,357 INFO L137 encePairwiseOnDemand]: 465/467 looper letters, 25 selfloop transitions, 1 changer transitions 0/335 dead transitions. [2022-11-18 19:40:32,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 335 transitions, 734 flow [2022-11-18 19:40:32,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1092 transitions. [2022-11-18 19:40:32,361 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7794432548179872 [2022-11-18 19:40:32,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1092 transitions. [2022-11-18 19:40:32,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1092 transitions. [2022-11-18 19:40:32,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:32,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1092 transitions. [2022-11-18 19:40:32,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.0) internal successors, (1092), 3 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,369 INFO L175 Difference]: Start difference. First operand has 335 places, 336 transitions, 684 flow. Second operand 3 states and 1092 transitions. [2022-11-18 19:40:32,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 335 transitions, 734 flow [2022-11-18 19:40:32,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 335 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:32,375 INFO L231 Difference]: Finished difference. Result has 335 places, 335 transitions, 683 flow [2022-11-18 19:40:32,375 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=335, PETRI_TRANSITIONS=335} [2022-11-18 19:40:32,376 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-18 19:40:32,376 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 335 transitions, 683 flow [2022-11-18 19:40:32,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:32,379 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:32,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:40:32,379 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:32,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1183592980, now seen corresponding path program 1 times [2022-11-18 19:40:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206769888] [2022-11-18 19:40:32,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:32,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:32,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:32,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206769888] [2022-11-18 19:40:32,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206769888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:32,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:32,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:32,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305856754] [2022-11-18 19:40:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:32,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:32,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:32,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:32,454 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 467 [2022-11-18 19:40:32,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 335 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:32,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 467 [2022-11-18 19:40:32,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:32,973 INFO L130 PetriNetUnfolder]: 748/1770 cut-off events. [2022-11-18 19:40:32,973 INFO L131 PetriNetUnfolder]: For 49/155 co-relation queries the response was YES. [2022-11-18 19:40:32,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 1770 events. 748/1770 cut-off events. For 49/155 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9180 event pairs, 485 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2755. Up to 1007 conditions per place. [2022-11-18 19:40:32,986 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 27 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-18 19:40:32,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 333 transitions, 735 flow [2022-11-18 19:40:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:32,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2022-11-18 19:40:32,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7751605995717344 [2022-11-18 19:40:32,990 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2022-11-18 19:40:32,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2022-11-18 19:40:32,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:32,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2022-11-18 19:40:32,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,997 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:32,997 INFO L175 Difference]: Start difference. First operand has 335 places, 335 transitions, 683 flow. Second operand 3 states and 1086 transitions. [2022-11-18 19:40:32,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 333 transitions, 735 flow [2022-11-18 19:40:32,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 333 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:33,003 INFO L231 Difference]: Finished difference. Result has 334 places, 333 transitions, 680 flow [2022-11-18 19:40:33,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=334, PETRI_TRANSITIONS=333} [2022-11-18 19:40:33,004 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -98 predicate places. [2022-11-18 19:40:33,004 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 333 transitions, 680 flow [2022-11-18 19:40:33,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:33,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:33,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:40:33,005 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2048814992, now seen corresponding path program 1 times [2022-11-18 19:40:33,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:33,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230131094] [2022-11-18 19:40:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:33,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:33,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:33,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230131094] [2022-11-18 19:40:33,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230131094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:33,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:33,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:33,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556284756] [2022-11-18 19:40:33,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:33,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:33,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:33,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:33,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:33,074 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:33,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 333 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:33,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:33,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:33,798 INFO L130 PetriNetUnfolder]: 1256/2921 cut-off events. [2022-11-18 19:40:33,798 INFO L131 PetriNetUnfolder]: For 83/269 co-relation queries the response was YES. [2022-11-18 19:40:33,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4748 conditions, 2921 events. 1256/2921 cut-off events. For 83/269 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18016 event pairs, 792 based on Foata normal form. 0/2542 useless extension candidates. Maximal degree in co-relation 4648. Up to 1085 conditions per place. [2022-11-18 19:40:33,823 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 45 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2022-11-18 19:40:33,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 353 transitions, 822 flow [2022-11-18 19:40:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:33,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2022-11-18 19:40:33,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944325481798715 [2022-11-18 19:40:33,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2022-11-18 19:40:33,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2022-11-18 19:40:33,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:33,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2022-11-18 19:40:33,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,834 INFO L175 Difference]: Start difference. First operand has 334 places, 333 transitions, 680 flow. Second operand 3 states and 1113 transitions. [2022-11-18 19:40:33,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 353 transitions, 822 flow [2022-11-18 19:40:33,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 353 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:33,840 INFO L231 Difference]: Finished difference. Result has 335 places, 333 transitions, 687 flow [2022-11-18 19:40:33,841 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=687, PETRI_PLACES=335, PETRI_TRANSITIONS=333} [2022-11-18 19:40:33,841 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -97 predicate places. [2022-11-18 19:40:33,841 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 333 transitions, 687 flow [2022-11-18 19:40:33,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:33,842 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:33,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:40:33,843 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:33,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1812929224, now seen corresponding path program 1 times [2022-11-18 19:40:33,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:33,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450121276] [2022-11-18 19:40:33,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:33,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:33,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450121276] [2022-11-18 19:40:33,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450121276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:33,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:33,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830872301] [2022-11-18 19:40:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:33,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:33,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 333 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:33,909 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:33,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:33,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:35,398 INFO L130 PetriNetUnfolder]: 2192/5181 cut-off events. [2022-11-18 19:40:35,398 INFO L131 PetriNetUnfolder]: For 414/738 co-relation queries the response was YES. [2022-11-18 19:40:35,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8819 conditions, 5181 events. 2192/5181 cut-off events. For 414/738 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 38616 event pairs, 1359 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 8718. Up to 1803 conditions per place. [2022-11-18 19:40:35,440 INFO L137 encePairwiseOnDemand]: 464/467 looper letters, 47 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2022-11-18 19:40:35,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 354 transitions, 840 flow [2022-11-18 19:40:35,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2022-11-18 19:40:35,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944325481798715 [2022-11-18 19:40:35,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2022-11-18 19:40:35,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2022-11-18 19:40:35,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:35,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2022-11-18 19:40:35,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:35,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:35,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:35,451 INFO L175 Difference]: Start difference. First operand has 335 places, 333 transitions, 687 flow. Second operand 3 states and 1113 transitions. [2022-11-18 19:40:35,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 354 transitions, 840 flow [2022-11-18 19:40:35,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 354 transitions, 837 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:35,458 INFO L231 Difference]: Finished difference. Result has 336 places, 333 transitions, 693 flow [2022-11-18 19:40:35,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=336, PETRI_TRANSITIONS=333} [2022-11-18 19:40:35,460 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -96 predicate places. [2022-11-18 19:40:35,460 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 333 transitions, 693 flow [2022-11-18 19:40:35,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:35,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:35,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:35,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:40:35,461 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:35,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:35,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1816122821, now seen corresponding path program 1 times [2022-11-18 19:40:35,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:35,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445332763] [2022-11-18 19:40:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:35,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:35,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:35,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445332763] [2022-11-18 19:40:35,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445332763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:35,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:35,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:35,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380995304] [2022-11-18 19:40:35,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:35,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:35,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:35,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:35,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:35,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 333 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:35,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:35,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:35,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:37,819 INFO L130 PetriNetUnfolder]: 3256/8336 cut-off events. [2022-11-18 19:40:37,819 INFO L131 PetriNetUnfolder]: For 1049/1508 co-relation queries the response was YES. [2022-11-18 19:40:37,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14045 conditions, 8336 events. 3256/8336 cut-off events. For 1049/1508 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 72735 event pairs, 1461 based on Foata normal form. 0/7193 useless extension candidates. Maximal degree in co-relation 13943. Up to 2480 conditions per place. [2022-11-18 19:40:37,892 INFO L137 encePairwiseOnDemand]: 463/467 looper letters, 48 selfloop transitions, 4 changer transitions 0/356 dead transitions. [2022-11-18 19:40:37,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 356 transitions, 860 flow [2022-11-18 19:40:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:37,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2022-11-18 19:40:37,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795146324054247 [2022-11-18 19:40:37,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2022-11-18 19:40:37,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2022-11-18 19:40:37,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:37,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2022-11-18 19:40:37,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:37,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:37,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:37,905 INFO L175 Difference]: Start difference. First operand has 336 places, 333 transitions, 693 flow. Second operand 3 states and 1114 transitions. [2022-11-18 19:40:37,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 356 transitions, 860 flow [2022-11-18 19:40:37,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 356 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:37,913 INFO L231 Difference]: Finished difference. Result has 338 places, 335 transitions, 721 flow [2022-11-18 19:40:37,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=338, PETRI_TRANSITIONS=335} [2022-11-18 19:40:37,914 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -94 predicate places. [2022-11-18 19:40:37,915 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 335 transitions, 721 flow [2022-11-18 19:40:37,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:37,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:37,916 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:37,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:40:37,916 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:37,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:37,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1531801131, now seen corresponding path program 1 times [2022-11-18 19:40:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:37,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410048904] [2022-11-18 19:40:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:37,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:37,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:37,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410048904] [2022-11-18 19:40:37,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410048904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:37,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:37,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:37,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416648774] [2022-11-18 19:40:37,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:37,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:37,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:37,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:37,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 467 [2022-11-18 19:40:37,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 335 transitions, 721 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:37,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:37,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 467 [2022-11-18 19:40:37,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:40,823 INFO L130 PetriNetUnfolder]: 4475/10993 cut-off events. [2022-11-18 19:40:40,823 INFO L131 PetriNetUnfolder]: For 4552/5361 co-relation queries the response was YES. [2022-11-18 19:40:40,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20163 conditions, 10993 events. 4475/10993 cut-off events. For 4552/5361 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 99941 event pairs, 1933 based on Foata normal form. 0/9488 useless extension candidates. Maximal degree in co-relation 20060. Up to 3689 conditions per place. [2022-11-18 19:40:40,924 INFO L137 encePairwiseOnDemand]: 463/467 looper letters, 54 selfloop transitions, 4 changer transitions 0/361 dead transitions. [2022-11-18 19:40:40,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 361 transitions, 927 flow [2022-11-18 19:40:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:40,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:40:40,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2022-11-18 19:40:40,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795146324054247 [2022-11-18 19:40:40,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2022-11-18 19:40:40,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2022-11-18 19:40:40,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:40,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2022-11-18 19:40:40,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 467.0) internal successors, (1868), 4 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,934 INFO L175 Difference]: Start difference. First operand has 338 places, 335 transitions, 721 flow. Second operand 3 states and 1114 transitions. [2022-11-18 19:40:40,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 361 transitions, 927 flow [2022-11-18 19:40:40,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 361 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:40,945 INFO L231 Difference]: Finished difference. Result has 339 places, 337 transitions, 743 flow [2022-11-18 19:40:40,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=339, PETRI_TRANSITIONS=337} [2022-11-18 19:40:40,946 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -93 predicate places. [2022-11-18 19:40:40,946 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 337 transitions, 743 flow [2022-11-18 19:40:40,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:40,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:40,947 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:40,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:40:40,948 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:40,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:40,948 INFO L85 PathProgramCache]: Analyzing trace with hash 109963664, now seen corresponding path program 1 times [2022-11-18 19:40:40,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:40,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103358116] [2022-11-18 19:40:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:41,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103358116] [2022-11-18 19:40:41,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103358116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:41,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:41,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:41,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413946849] [2022-11-18 19:40:41,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:41,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:41,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:41,684 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 467 [2022-11-18 19:40:41,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 337 transitions, 743 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:41,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:41,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 467 [2022-11-18 19:40:41,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:54,641 INFO L130 PetriNetUnfolder]: 30545/45921 cut-off events. [2022-11-18 19:40:54,641 INFO L131 PetriNetUnfolder]: For 35512/35512 co-relation queries the response was YES. [2022-11-18 19:40:54,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108650 conditions, 45921 events. 30545/45921 cut-off events. For 35512/35512 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 306893 event pairs, 4256 based on Foata normal form. 0/44006 useless extension candidates. Maximal degree in co-relation 108546. Up to 17939 conditions per place. [2022-11-18 19:40:54,913 INFO L137 encePairwiseOnDemand]: 462/467 looper letters, 151 selfloop transitions, 4 changer transitions 0/424 dead transitions. [2022-11-18 19:40:54,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 424 transitions, 1411 flow [2022-11-18 19:40:54,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2030 transitions. [2022-11-18 19:40:54,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7244825124910778 [2022-11-18 19:40:54,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2030 transitions. [2022-11-18 19:40:54,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2030 transitions. [2022-11-18 19:40:54,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:54,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2030 transitions. [2022-11-18 19:40:54,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:54,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:54,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 467.0) internal successors, (3269), 7 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:54,929 INFO L175 Difference]: Start difference. First operand has 339 places, 337 transitions, 743 flow. Second operand 6 states and 2030 transitions. [2022-11-18 19:40:54,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 424 transitions, 1411 flow [2022-11-18 19:40:54,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 424 transitions, 1379 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:54,964 INFO L231 Difference]: Finished difference. Result has 341 places, 336 transitions, 741 flow [2022-11-18 19:40:54,964 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=341, PETRI_TRANSITIONS=336} [2022-11-18 19:40:54,965 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -91 predicate places. [2022-11-18 19:40:54,965 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 336 transitions, 741 flow [2022-11-18 19:40:54,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:54,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:54,966 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:54,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:40:54,967 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2022-11-18 19:40:54,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:54,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1394830624, now seen corresponding path program 1 times [2022-11-18 19:40:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:54,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127359798] [2022-11-18 19:40:54,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:54,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:55,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:55,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127359798] [2022-11-18 19:40:55,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127359798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:55,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:55,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711626397] [2022-11-18 19:40:55,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:55,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:55,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:55,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:55,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 467 [2022-11-18 19:40:55,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 336 transitions, 741 flow. Second operand has 6 states, 6 states have (on average 322.3333333333333) internal successors, (1934), 6 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:40:55,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:55,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 467 [2022-11-18 19:40:55,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand