./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.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_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/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_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/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_c5210612-294e-4cbc-926a-adf4e9c1d0b6/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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f --- 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 20:23:56,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:56,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:57,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:57,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:57,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:57,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:57,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:57,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:57,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:57,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:57,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:57,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:57,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:57,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:57,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:57,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:57,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:57,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:57,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:57,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:57,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:57,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:57,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:57,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:57,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:57,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:57,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:57,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:57,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:57,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:57,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:57,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:57,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:57,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:57,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:57,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:57,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:57,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:57,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:57,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:57,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:23:57,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:57,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:57,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:57,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:57,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:57,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:57,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:57,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:57,102 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:57,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:57,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:23:57,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:23:57,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:57,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:23:57,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:57,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:23:57,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:57,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:23:57,104 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:23:57,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:23:57,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:23:57,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:57,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:23:57,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:57,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:57,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:57,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:57,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:57,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:57,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:23:57,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:23:57,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:23:57,107 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:23:57,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:23:57,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:23:57,108 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_c5210612-294e-4cbc-926a-adf4e9c1d0b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2022-11-18 20:23:57,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:57,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:57,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:57,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:57,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:57,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-18 20:23:57,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/data/a4360324b/7c608952be974fb9bd6c0096669b30d9/FLAG56a5ccf12 [2022-11-18 20:23:57,882 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:57,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2022-11-18 20:23:57,900 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/data/a4360324b/7c608952be974fb9bd6c0096669b30d9/FLAG56a5ccf12 [2022-11-18 20:23:58,286 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/data/a4360324b/7c608952be974fb9bd6c0096669b30d9 [2022-11-18 20:23:58,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:58,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:58,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:58,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:58,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:58,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68733228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58, skipping insertion in model container [2022-11-18 20:23:58,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:58,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:58,571 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_c5210612-294e-4cbc-926a-adf4e9c1d0b6/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-18 20:23:58,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:58,584 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:58,626 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_c5210612-294e-4cbc-926a-adf4e9c1d0b6/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2022-11-18 20:23:58,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:58,645 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:58,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58 WrapperNode [2022-11-18 20:23:58,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:58,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:58,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:58,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:58,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,710 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 266 [2022-11-18 20:23:58,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:58,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:58,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:58,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:58,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,811 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:58,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:58,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:58,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:58,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (1/1) ... [2022-11-18 20:23:58,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:58,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:58,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:58,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210612-294e-4cbc-926a-adf4e9c1d0b6/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:23:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:23:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:23:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:23:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:23:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:23:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:23:58,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:23:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:23:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:23:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-18 20:23:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-18 20:23:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:23:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-18 20:23:58,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-18 20:23:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:23:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:23:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:23:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:58,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:23:58,917 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 20:23:59,132 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:59,134 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:59,917 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:24:00,437 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:24:00,437 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:24:00,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:24:00 BoogieIcfgContainer [2022-11-18 20:24:00,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:24:00,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:24:00,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:24:00,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:24:00,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:58" (1/3) ... [2022-11-18 20:24:00,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a33a1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:24:00, skipping insertion in model container [2022-11-18 20:24:00,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:58" (2/3) ... [2022-11-18 20:24:00,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a33a1fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:24:00, skipping insertion in model container [2022-11-18 20:24:00,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:24:00" (3/3) ... [2022-11-18 20:24:00,460 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2022-11-18 20:24:00,470 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:24:00,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:24:00,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2022-11-18 20:24:00,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:24:00,673 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-18 20:24:00,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 301 transitions, 642 flow [2022-11-18 20:24:00,908 INFO L130 PetriNetUnfolder]: 14/296 cut-off events. [2022-11-18 20:24:00,909 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:24:00,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 296 events. 14/296 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 419 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 221. Up to 2 conditions per place. [2022-11-18 20:24:00,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 303 places, 301 transitions, 642 flow [2022-11-18 20:24:00,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 272 transitions, 574 flow [2022-11-18 20:24:00,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:24:00,950 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;@6348b63d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:24:00,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2022-11-18 20:24:00,957 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 20:24:00,957 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:24:00,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:00,958 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] [2022-11-18 20:24:00,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash 297181946, now seen corresponding path program 1 times [2022-11-18 20:24:00,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:00,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876017409] [2022-11-18 20:24:00,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:01,226 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 20:24:01,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:01,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876017409] [2022-11-18 20:24:01,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876017409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:01,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:01,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:24:01,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734889279] [2022-11-18 20:24:01,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:01,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:24:01,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:24:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:24:01,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 301 [2022-11-18 20:24:01,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 272 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 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 20:24:01,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:01,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 301 [2022-11-18 20:24:01,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:08,284 INFO L130 PetriNetUnfolder]: 14548/27453 cut-off events. [2022-11-18 20:24:08,284 INFO L131 PetriNetUnfolder]: For 2774/3201 co-relation queries the response was YES. [2022-11-18 20:24:08,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49822 conditions, 27453 events. 14548/27453 cut-off events. For 2774/3201 co-relation queries the response was YES. Maximal size of possible extension queue 1557. Compared 265233 event pairs, 12816 based on Foata normal form. 4/23147 useless extension candidates. Maximal degree in co-relation 49109. Up to 18894 conditions per place. [2022-11-18 20:24:08,777 INFO L137 encePairwiseOnDemand]: 252/301 looper letters, 40 selfloop transitions, 2 changer transitions 3/225 dead transitions. [2022-11-18 20:24:08,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 225 transitions, 564 flow [2022-11-18 20:24:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:24:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:24:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2022-11-18 20:24:08,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7962347729789591 [2022-11-18 20:24:08,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 719 transitions. [2022-11-18 20:24:08,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 719 transitions. [2022-11-18 20:24:08,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:08,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 719 transitions. [2022-11-18 20:24:08,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 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 20:24:08,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 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 20:24:08,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 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 20:24:08,827 INFO L175 Difference]: Start difference. First operand has 275 places, 272 transitions, 574 flow. Second operand 3 states and 719 transitions. [2022-11-18 20:24:08,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 225 transitions, 564 flow [2022-11-18 20:24:08,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 225 transitions, 544 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-18 20:24:08,846 INFO L231 Difference]: Finished difference. Result has 228 places, 222 transitions, 458 flow [2022-11-18 20:24:08,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=228, PETRI_TRANSITIONS=222} [2022-11-18 20:24:08,852 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, -47 predicate places. [2022-11-18 20:24:08,853 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 222 transitions, 458 flow [2022-11-18 20:24:08,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 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 20:24:08,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:08,854 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] [2022-11-18 20:24:08,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:24:08,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:08,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1093411537, now seen corresponding path program 1 times [2022-11-18 20:24:08,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:08,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052489646] [2022-11-18 20:24:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:08,980 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 20:24:08,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:08,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052489646] [2022-11-18 20:24:08,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052489646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:08,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:08,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:24:08,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038684748] [2022-11-18 20:24:08,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:08,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:24:08,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:24:08,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:24:08,985 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 301 [2022-11-18 20:24:08,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 222 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 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 20:24:08,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:08,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 301 [2022-11-18 20:24:08,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:11,646 INFO L130 PetriNetUnfolder]: 6988/14261 cut-off events. [2022-11-18 20:24:11,646 INFO L131 PetriNetUnfolder]: For 236/510 co-relation queries the response was YES. [2022-11-18 20:24:11,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24125 conditions, 14261 events. 6988/14261 cut-off events. For 236/510 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 132068 event pairs, 5929 based on Foata normal form. 0/13327 useless extension candidates. Maximal degree in co-relation 24087. Up to 9094 conditions per place. [2022-11-18 20:24:11,810 INFO L137 encePairwiseOnDemand]: 294/301 looper letters, 32 selfloop transitions, 1 changer transitions 0/216 dead transitions. [2022-11-18 20:24:11,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 216 transitions, 512 flow [2022-11-18 20:24:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:24:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:24:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2022-11-18 20:24:11,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7508305647840532 [2022-11-18 20:24:11,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2022-11-18 20:24:11,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2022-11-18 20:24:11,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:11,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2022-11-18 20:24:11,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 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 20:24:11,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 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 20:24:11,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 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 20:24:11,821 INFO L175 Difference]: Start difference. First operand has 228 places, 222 transitions, 458 flow. Second operand 3 states and 678 transitions. [2022-11-18 20:24:11,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 216 transitions, 512 flow [2022-11-18 20:24:11,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 216 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:24:11,827 INFO L231 Difference]: Finished difference. Result has 219 places, 216 transitions, 444 flow [2022-11-18 20:24:11,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=219, PETRI_TRANSITIONS=216} [2022-11-18 20:24:11,828 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, -56 predicate places. [2022-11-18 20:24:11,829 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 216 transitions, 444 flow [2022-11-18 20:24:11,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 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 20:24:11,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:11,830 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 20:24:11,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:24:11,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:11,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:11,831 INFO L85 PathProgramCache]: Analyzing trace with hash 12039221, now seen corresponding path program 1 times [2022-11-18 20:24:11,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:11,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302671227] [2022-11-18 20:24:11,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:11,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:11,924 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 20:24:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:11,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302671227] [2022-11-18 20:24:11,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302671227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:11,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:11,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:24:11,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633217594] [2022-11-18 20:24:11,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:11,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:24:11,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:11,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:24:11,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:24:11,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 301 [2022-11-18 20:24:11,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 216 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 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 20:24:11,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:11,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 301 [2022-11-18 20:24:11,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:12,606 INFO L130 PetriNetUnfolder]: 840/2628 cut-off events. [2022-11-18 20:24:12,607 INFO L131 PetriNetUnfolder]: For 53/98 co-relation queries the response was YES. [2022-11-18 20:24:12,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3850 conditions, 2628 events. 840/2628 cut-off events. For 53/98 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 20085 event pairs, 597 based on Foata normal form. 0/2320 useless extension candidates. Maximal degree in co-relation 3813. Up to 1100 conditions per place. [2022-11-18 20:24:12,631 INFO L137 encePairwiseOnDemand]: 298/301 looper letters, 22 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2022-11-18 20:24:12,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 215 transitions, 490 flow [2022-11-18 20:24:12,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:24:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:24:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 709 transitions. [2022-11-18 20:24:12,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7851605758582503 [2022-11-18 20:24:12,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 709 transitions. [2022-11-18 20:24:12,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 709 transitions. [2022-11-18 20:24:12,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:12,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 709 transitions. [2022-11-18 20:24:12,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 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 20:24:12,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 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 20:24:12,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 0 states have call successors, (0), 0 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 20:24:12,642 INFO L175 Difference]: Start difference. First operand has 219 places, 216 transitions, 444 flow. Second operand 3 states and 709 transitions. [2022-11-18 20:24:12,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 215 transitions, 490 flow [2022-11-18 20:24:12,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 215 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:24:12,646 INFO L231 Difference]: Finished difference. Result has 219 places, 215 transitions, 445 flow [2022-11-18 20:24:12,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=219, PETRI_TRANSITIONS=215} [2022-11-18 20:24:12,648 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, -56 predicate places. [2022-11-18 20:24:12,648 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 215 transitions, 445 flow [2022-11-18 20:24:12,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 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 20:24:12,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:12,649 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] [2022-11-18 20:24:12,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:24:12,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:12,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1347959269, now seen corresponding path program 1 times [2022-11-18 20:24:12,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:12,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644311237] [2022-11-18 20:24:12,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:12,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:13,505 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 20:24:13,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:13,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644311237] [2022-11-18 20:24:13,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644311237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:13,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:13,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:24:13,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005486934] [2022-11-18 20:24:13,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:13,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:24:13,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:13,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:24:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:24:13,510 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 301 [2022-11-18 20:24:13,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 215 transitions, 445 flow. Second operand has 6 states, 6 states have (on average 188.83333333333334) internal successors, (1133), 6 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:13,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:13,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 301 [2022-11-18 20:24:13,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:15,887 INFO L130 PetriNetUnfolder]: 4702/7993 cut-off events. [2022-11-18 20:24:15,887 INFO L131 PetriNetUnfolder]: For 3/93 co-relation queries the response was YES. [2022-11-18 20:24:15,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14130 conditions, 7993 events. 4702/7993 cut-off events. For 3/93 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 53003 event pairs, 3435 based on Foata normal form. 0/6928 useless extension candidates. Maximal degree in co-relation 14094. Up to 6010 conditions per place. [2022-11-18 20:24:15,961 INFO L137 encePairwiseOnDemand]: 295/301 looper letters, 60 selfloop transitions, 5 changer transitions 0/214 dead transitions. [2022-11-18 20:24:15,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 214 transitions, 573 flow [2022-11-18 20:24:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:24:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:24:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-11-18 20:24:15,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6578073089700996 [2022-11-18 20:24:15,965 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-11-18 20:24:15,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-11-18 20:24:15,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:15,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-11-18 20:24:15,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 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 20:24:15,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 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 20:24:15,974 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 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 20:24:15,974 INFO L175 Difference]: Start difference. First operand has 219 places, 215 transitions, 445 flow. Second operand 6 states and 1188 transitions. [2022-11-18 20:24:15,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 214 transitions, 573 flow [2022-11-18 20:24:15,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 214 transitions, 569 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:24:15,979 INFO L231 Difference]: Finished difference. Result has 221 places, 214 transitions, 449 flow [2022-11-18 20:24:15,979 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=449, PETRI_PLACES=221, PETRI_TRANSITIONS=214} [2022-11-18 20:24:15,980 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, -54 predicate places. [2022-11-18 20:24:15,980 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 214 transitions, 449 flow [2022-11-18 20:24:15,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.83333333333334) internal successors, (1133), 6 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:24:15,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:15,982 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] [2022-11-18 20:24:15,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:24:15,982 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:15,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:15,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1428194525, now seen corresponding path program 1 times [2022-11-18 20:24:15,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:15,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627576054] [2022-11-18 20:24:15,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:15,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:16,439 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 20:24:16,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:16,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627576054] [2022-11-18 20:24:16,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627576054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:16,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:16,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:24:16,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226426111] [2022-11-18 20:24:16,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:16,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:24:16,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:16,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:24:16,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:24:16,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 301 [2022-11-18 20:24:16,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 214 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 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 20:24:16,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:16,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 301 [2022-11-18 20:24:16,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:20,026 INFO L130 PetriNetUnfolder]: 7614/16064 cut-off events. [2022-11-18 20:24:20,026 INFO L131 PetriNetUnfolder]: For 40/68 co-relation queries the response was YES. [2022-11-18 20:24:20,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25937 conditions, 16064 events. 7614/16064 cut-off events. For 40/68 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 137788 event pairs, 2558 based on Foata normal form. 4/14461 useless extension candidates. Maximal degree in co-relation 25914. Up to 7074 conditions per place. [2022-11-18 20:24:20,174 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 114 selfloop transitions, 13 changer transitions 0/283 dead transitions. [2022-11-18 20:24:20,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 283 transitions, 846 flow [2022-11-18 20:24:20,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:24:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:24:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1280 transitions. [2022-11-18 20:24:20,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.70874861572536 [2022-11-18 20:24:20,178 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1280 transitions. [2022-11-18 20:24:20,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1280 transitions. [2022-11-18 20:24:20,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:20,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1280 transitions. [2022-11-18 20:24:20,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 0 states have call successors, (0), 0 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 20:24:20,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 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 20:24:20,188 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 301.0) internal successors, (2107), 7 states have internal predecessors, (2107), 0 states have call successors, (0), 0 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 20:24:20,188 INFO L175 Difference]: Start difference. First operand has 221 places, 214 transitions, 449 flow. Second operand 6 states and 1280 transitions. [2022-11-18 20:24:20,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 283 transitions, 846 flow [2022-11-18 20:24:20,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 283 transitions, 836 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:24:20,194 INFO L231 Difference]: Finished difference. Result has 226 places, 226 transitions, 529 flow [2022-11-18 20:24:20,194 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=226, PETRI_TRANSITIONS=226} [2022-11-18 20:24:20,195 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, -49 predicate places. [2022-11-18 20:24:20,195 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 226 transitions, 529 flow [2022-11-18 20:24:20,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 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 20:24:20,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:20,196 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] [2022-11-18 20:24:20,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:24:20,197 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash -755880166, now seen corresponding path program 1 times [2022-11-18 20:24:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:20,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949876941] [2022-11-18 20:24:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:20,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:20,502 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 20:24:20,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:20,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949876941] [2022-11-18 20:24:20,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949876941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:20,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:20,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:20,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508015541] [2022-11-18 20:24:20,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:20,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:20,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:20,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:20,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:20,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 301 [2022-11-18 20:24:20,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 226 transitions, 529 flow. Second operand has 7 states, 7 states have (on average 204.71428571428572) internal successors, (1433), 7 states have internal predecessors, (1433), 0 states have call successors, (0), 0 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 20:24:20,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:20,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 301 [2022-11-18 20:24:20,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:24:41,542 INFO L130 PetriNetUnfolder]: 74347/131635 cut-off events. [2022-11-18 20:24:41,542 INFO L131 PetriNetUnfolder]: For 23454/43970 co-relation queries the response was YES. [2022-11-18 20:24:42,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248632 conditions, 131635 events. 74347/131635 cut-off events. For 23454/43970 co-relation queries the response was YES. Maximal size of possible extension queue 5221. Compared 1377729 event pairs, 39506 based on Foata normal form. 3/107819 useless extension candidates. Maximal degree in co-relation 248590. Up to 67465 conditions per place. [2022-11-18 20:24:42,884 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 112 selfloop transitions, 8 changer transitions 0/288 dead transitions. [2022-11-18 20:24:42,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 288 transitions, 943 flow [2022-11-18 20:24:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:24:42,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 20:24:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1721 transitions. [2022-11-18 20:24:42,890 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7147009966777409 [2022-11-18 20:24:42,891 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1721 transitions. [2022-11-18 20:24:42,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1721 transitions. [2022-11-18 20:24:42,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:24:42,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1721 transitions. [2022-11-18 20:24:42,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 215.125) internal successors, (1721), 8 states have internal predecessors, (1721), 0 states have call successors, (0), 0 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 20:24:42,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 301.0) internal successors, (2709), 9 states have internal predecessors, (2709), 0 states have call successors, (0), 0 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 20:24:42,908 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 301.0) internal successors, (2709), 9 states have internal predecessors, (2709), 0 states have call successors, (0), 0 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 20:24:42,908 INFO L175 Difference]: Start difference. First operand has 226 places, 226 transitions, 529 flow. Second operand 8 states and 1721 transitions. [2022-11-18 20:24:42,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 288 transitions, 943 flow [2022-11-18 20:24:43,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 288 transitions, 943 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:24:43,037 INFO L231 Difference]: Finished difference. Result has 236 places, 229 transitions, 565 flow [2022-11-18 20:24:43,037 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=565, PETRI_PLACES=236, PETRI_TRANSITIONS=229} [2022-11-18 20:24:43,038 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, -39 predicate places. [2022-11-18 20:24:43,038 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 229 transitions, 565 flow [2022-11-18 20:24:43,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.71428571428572) internal successors, (1433), 7 states have internal predecessors, (1433), 0 states have call successors, (0), 0 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 20:24:43,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:24:43,040 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] [2022-11-18 20:24:43,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:24:43,040 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2022-11-18 20:24:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:24:43,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1699039660, now seen corresponding path program 1 times [2022-11-18 20:24:43,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:24:43,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319845592] [2022-11-18 20:24:43,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:24:43,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:24:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:24:43,293 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 20:24:43,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:24:43,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319845592] [2022-11-18 20:24:43,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319845592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:24:43,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:24:43,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:24:43,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435357212] [2022-11-18 20:24:43,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:24:43,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:24:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:24:43,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:24:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:24:43,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 301 [2022-11-18 20:24:43,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 229 transitions, 565 flow. Second operand has 7 states, 7 states have (on average 204.71428571428572) internal successors, (1433), 7 states have internal predecessors, (1433), 0 states have call successors, (0), 0 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 20:24:43,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:24:43,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 301 [2022-11-18 20:24:43,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand