./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:34:02,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:34:02,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 21:34:02,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:34:02,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:34:02,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:34:02,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:34:02,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:34:02,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:34:02,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:34:02,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:34:02,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:34:02,840 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:34:02,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:34:02,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:34:02,843 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:34:02,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:34:02,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:34:02,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:34:02,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:34:02,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:34:02,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:34:02,846 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:34:02,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:34:02,848 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:34:02,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:34:02,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:34:02,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:34:02,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:34:02,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:34:02,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:02,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:34:02,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:34:02,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:34:02,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:34:02,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:34:02,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:34:02,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:34:02,854 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:34:02,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:34:02,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:34:02,855 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726fce4da80b267da781dea82372ef1c43891e7d5d6ac2b3894c611bc25a242b [2023-11-23 21:34:03,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:34:03,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:34:03,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:34:03,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:34:03,145 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:34:03,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-23 21:34:06,406 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:34:06,807 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:34:06,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2023-11-23 21:34:06,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/data/fba782408/488252a3b2d24465a90d4484f2dfbf05/FLAG8b744d67a [2023-11-23 21:34:06,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/data/fba782408/488252a3b2d24465a90d4484f2dfbf05 [2023-11-23 21:34:06,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:34:06,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:34:06,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:06,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:34:06,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:34:06,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:06" (1/1) ... [2023-11-23 21:34:06,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f14f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:06, skipping insertion in model container [2023-11-23 21:34:06,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:06" (1/1) ... [2023-11-23 21:34:06,956 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:34:07,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:07,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:34:07,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:07,866 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:34:07,866 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:34:07,875 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:34:07,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07 WrapperNode [2023-11-23 21:34:07,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:07,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:07,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:34:07,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:34:07,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,967 INFO L138 Inliner]: procedures = 275, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 164 [2023-11-23 21:34:07,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:07,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:34:07,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:34:07,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:34:07,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:07,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:08,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:08,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:08,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:08,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:08,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:34:08,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:34:08,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:34:08,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:34:08,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (1/1) ... [2023-11-23 21:34:08,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:08,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:34:08,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:34:08,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbd95219-04e4-47b6-bbd1-6ef8f316c6ce/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:34:08,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 21:34:08,134 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-11-23 21:34:08,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-11-23 21:34:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:34:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:34:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 21:34:08,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:34:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:34:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:34:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:34:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:34:08,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:34:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:34:08,141 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:34:08,297 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:34:08,299 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:34:08,664 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:34:08,767 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:34:08,767 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:34:08,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:08 BoogieIcfgContainer [2023-11-23 21:34:08,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:34:08,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:34:08,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:34:08,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:34:08,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:34:06" (1/3) ... [2023-11-23 21:34:08,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ff256d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:34:08, skipping insertion in model container [2023-11-23 21:34:08,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:07" (2/3) ... [2023-11-23 21:34:08,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ff256d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:34:08, skipping insertion in model container [2023-11-23 21:34:08,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:08" (3/3) ... [2023-11-23 21:34:08,783 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2023-11-23 21:34:08,793 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:34:08,805 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:34:08,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-23 21:34:08,806 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:34:08,927 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:34:08,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 175 transitions, 354 flow [2023-11-23 21:34:09,065 INFO L124 PetriNetUnfolderBase]: 9/188 cut-off events. [2023-11-23 21:34:09,065 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:34:09,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 188 events. 9/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 179 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2023-11-23 21:34:09,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 175 transitions, 354 flow [2023-11-23 21:34:09,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 175 transitions, 354 flow [2023-11-23 21:34:09,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:34:09,097 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=LoopHeads, 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;@4fb8a45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:34:09,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-23 21:34:09,103 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:34:09,104 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-23 21:34:09,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:34:09,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:09,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:09,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:09,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1893095273, now seen corresponding path program 1 times [2023-11-23 21:34:09,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11881928] [2023-11-23 21:34:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:09,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:09,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11881928] [2023-11-23 21:34:09,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11881928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:09,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:09,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:09,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211428179] [2023-11-23 21:34:09,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:09,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:09,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:09,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:09,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:09,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 175 [2023-11-23 21:34:09,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 175 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:09,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 175 [2023-11-23 21:34:09,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:09,522 INFO L124 PetriNetUnfolderBase]: 3/158 cut-off events. [2023-11-23 21:34:09,522 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:34:09,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 3/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 8/144 useless extension candidates. Maximal degree in co-relation 90. Up to 7 conditions per place. [2023-11-23 21:34:09,524 INFO L140 encePairwiseOnDemand]: 162/175 looper letters, 6 selfloop transitions, 2 changer transitions 1/154 dead transitions. [2023-11-23 21:34:09,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 154 transitions, 328 flow [2023-11-23 21:34:09,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2023-11-23 21:34:09,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9161904761904762 [2023-11-23 21:34:09,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2023-11-23 21:34:09,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2023-11-23 21:34:09,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:09,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2023-11-23 21:34:09,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,565 INFO L175 Difference]: Start difference. First operand has 170 places, 175 transitions, 354 flow. Second operand 3 states and 481 transitions. [2023-11-23 21:34:09,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 154 transitions, 328 flow [2023-11-23 21:34:09,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 154 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 21:34:09,577 INFO L231 Difference]: Finished difference. Result has 156 places, 153 transitions, 314 flow [2023-11-23 21:34:09,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=156, PETRI_TRANSITIONS=153} [2023-11-23 21:34:09,583 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -14 predicate places. [2023-11-23 21:34:09,584 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 153 transitions, 314 flow [2023-11-23 21:34:09,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:09,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:09,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:34:09,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:09,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash -457357874, now seen corresponding path program 1 times [2023-11-23 21:34:09,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375793124] [2023-11-23 21:34:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:09,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:09,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375793124] [2023-11-23 21:34:09,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375793124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:09,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:09,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:09,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848939971] [2023-11-23 21:34:09,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:09,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:09,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2023-11-23 21:34:09,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 153 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:09,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2023-11-23 21:34:09,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:09,887 INFO L124 PetriNetUnfolderBase]: 3/156 cut-off events. [2023-11-23 21:34:09,888 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:34:09,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 156 events. 3/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 149. Up to 11 conditions per place. [2023-11-23 21:34:09,891 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 10 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2023-11-23 21:34:09,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 152 transitions, 336 flow [2023-11-23 21:34:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2023-11-23 21:34:09,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8819047619047619 [2023-11-23 21:34:09,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2023-11-23 21:34:09,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2023-11-23 21:34:09,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:09,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2023-11-23 21:34:09,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,904 INFO L175 Difference]: Start difference. First operand has 156 places, 153 transitions, 314 flow. Second operand 3 states and 463 transitions. [2023-11-23 21:34:09,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 152 transitions, 336 flow [2023-11-23 21:34:09,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 152 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:09,910 INFO L231 Difference]: Finished difference. Result has 154 places, 152 transitions, 312 flow [2023-11-23 21:34:09,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=154, PETRI_TRANSITIONS=152} [2023-11-23 21:34:09,912 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -16 predicate places. [2023-11-23 21:34:09,912 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 152 transitions, 312 flow [2023-11-23 21:34:09,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:09,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:09,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:09,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:34:09,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:09,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:09,915 INFO L85 PathProgramCache]: Analyzing trace with hash -608003830, now seen corresponding path program 1 times [2023-11-23 21:34:09,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:09,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740989714] [2023-11-23 21:34:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:09,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:09,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:09,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:09,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740989714] [2023-11-23 21:34:09,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740989714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:09,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:09,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:09,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666189765] [2023-11-23 21:34:09,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:09,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:09,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:09,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:09,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:10,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 175 [2023-11-23 21:34:10,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 152 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:10,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 175 [2023-11-23 21:34:10,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:10,048 INFO L124 PetriNetUnfolderBase]: 3/155 cut-off events. [2023-11-23 21:34:10,048 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:34:10,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 155 events. 3/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 143. Up to 11 conditions per place. [2023-11-23 21:34:10,050 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 10 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2023-11-23 21:34:10,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 151 transitions, 334 flow [2023-11-23 21:34:10,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:10,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2023-11-23 21:34:10,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8819047619047619 [2023-11-23 21:34:10,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2023-11-23 21:34:10,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2023-11-23 21:34:10,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:10,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2023-11-23 21:34:10,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,060 INFO L175 Difference]: Start difference. First operand has 154 places, 152 transitions, 312 flow. Second operand 3 states and 463 transitions. [2023-11-23 21:34:10,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 151 transitions, 334 flow [2023-11-23 21:34:10,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 151 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:10,066 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 310 flow [2023-11-23 21:34:10,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2023-11-23 21:34:10,067 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -17 predicate places. [2023-11-23 21:34:10,068 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 310 flow [2023-11-23 21:34:10,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:10,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:10,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:34:10,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:10,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:10,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1745274053, now seen corresponding path program 1 times [2023-11-23 21:34:10,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:10,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921463105] [2023-11-23 21:34:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:10,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:10,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:10,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921463105] [2023-11-23 21:34:10,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921463105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:10,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:10,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:10,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419859756] [2023-11-23 21:34:10,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:10,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:10,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:10,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:10,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:10,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 175 [2023-11-23 21:34:10,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:10,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 175 [2023-11-23 21:34:10,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:10,255 INFO L124 PetriNetUnfolderBase]: 3/151 cut-off events. [2023-11-23 21:34:10,255 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 21:34:10,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 151 events. 3/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 131. Up to 11 conditions per place. [2023-11-23 21:34:10,257 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 11 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-11-23 21:34:10,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 147 transitions, 326 flow [2023-11-23 21:34:10,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:10,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2023-11-23 21:34:10,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8761904761904762 [2023-11-23 21:34:10,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2023-11-23 21:34:10,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2023-11-23 21:34:10,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:10,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2023-11-23 21:34:10,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,267 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 310 flow. Second operand 3 states and 460 transitions. [2023-11-23 21:34:10,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 147 transitions, 326 flow [2023-11-23 21:34:10,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:10,273 INFO L231 Difference]: Finished difference. Result has 149 places, 147 transitions, 300 flow [2023-11-23 21:34:10,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2023-11-23 21:34:10,276 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -21 predicate places. [2023-11-23 21:34:10,276 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 300 flow [2023-11-23 21:34:10,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:10,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:10,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:34:10,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:10,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:10,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1467890943, now seen corresponding path program 1 times [2023-11-23 21:34:10,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:10,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056563437] [2023-11-23 21:34:10,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:10,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056563437] [2023-11-23 21:34:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056563437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:10,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688039833] [2023-11-23 21:34:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:10,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:10,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:10,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 175 [2023-11-23 21:34:10,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:10,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 175 [2023-11-23 21:34:10,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:10,469 INFO L124 PetriNetUnfolderBase]: 3/150 cut-off events. [2023-11-23 21:34:10,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:34:10,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 150 events. 3/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 128. Up to 10 conditions per place. [2023-11-23 21:34:10,473 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 9 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-11-23 21:34:10,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 320 flow [2023-11-23 21:34:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2023-11-23 21:34:10,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2023-11-23 21:34:10,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2023-11-23 21:34:10,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2023-11-23 21:34:10,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:10,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2023-11-23 21:34:10,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,490 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 300 flow. Second operand 3 states and 465 transitions. [2023-11-23 21:34:10,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 320 flow [2023-11-23 21:34:10,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 146 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:34:10,495 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 301 flow [2023-11-23 21:34:10,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2023-11-23 21:34:10,499 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -21 predicate places. [2023-11-23 21:34:10,500 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 301 flow [2023-11-23 21:34:10,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:10,503 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:10,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:34:10,504 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:10,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:10,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1868260891, now seen corresponding path program 1 times [2023-11-23 21:34:10,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:10,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026924585] [2023-11-23 21:34:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:10,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 21:34:10,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:10,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026924585] [2023-11-23 21:34:10,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026924585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:10,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:10,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:34:10,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238284043] [2023-11-23 21:34:10,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:10,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:34:10,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:10,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:34:10,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:10,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 175 [2023-11-23 21:34:10,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:10,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 175 [2023-11-23 21:34:10,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:10,855 INFO L124 PetriNetUnfolderBase]: 2/153 cut-off events. [2023-11-23 21:34:10,855 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 21:34:10,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 153 events. 2/153 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 140. Up to 15 conditions per place. [2023-11-23 21:34:10,857 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 14 selfloop transitions, 0 changer transitions 4/149 dead transitions. [2023-11-23 21:34:10,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 149 transitions, 343 flow [2023-11-23 21:34:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:34:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 21:34:10,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 754 transitions. [2023-11-23 21:34:10,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8617142857142858 [2023-11-23 21:34:10,861 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 754 transitions. [2023-11-23 21:34:10,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 754 transitions. [2023-11-23 21:34:10,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:10,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 754 transitions. [2023-11-23 21:34:10,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.8) internal successors, (754), 5 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,870 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,870 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 301 flow. Second operand 5 states and 754 transitions. [2023-11-23 21:34:10,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 149 transitions, 343 flow [2023-11-23 21:34:10,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 149 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:10,875 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 301 flow [2023-11-23 21:34:10,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2023-11-23 21:34:10,878 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -16 predicate places. [2023-11-23 21:34:10,879 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 301 flow [2023-11-23 21:34:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:10,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:10,880 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:10,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:34:10,880 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-23 21:34:10,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash -678968952, now seen corresponding path program 1 times [2023-11-23 21:34:10,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:10,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688181473] [2023-11-23 21:34:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:10,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:10,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:10,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:10,999 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:34:11,000 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2023-11-23 21:34:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-11-23 21:34:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-11-23 21:34:11,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-11-23 21:34:11,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-11-23 21:34:11,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-11-23 21:34:11,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-11-23 21:34:11,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-11-23 21:34:11,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-11-23 21:34:11,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-11-23 21:34:11,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-11-23 21:34:11,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-11-23 21:34:11,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-11-23 21:34:11,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-11-23 21:34:11,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-11-23 21:34:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-11-23 21:34:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-11-23 21:34:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-11-23 21:34:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-11-23 21:34:11,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-11-23 21:34:11,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-11-23 21:34:11,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-11-23 21:34:11,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-11-23 21:34:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-11-23 21:34:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2023-11-23 21:34:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-11-23 21:34:11,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-11-23 21:34:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-11-23 21:34:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-11-23 21:34:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-11-23 21:34:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-11-23 21:34:11,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-11-23 21:34:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-11-23 21:34:11,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-11-23 21:34:11,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-11-23 21:34:11,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-11-23 21:34:11,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-11-23 21:34:11,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-11-23 21:34:11,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:34:11,021 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:11,024 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 21:34:11,025 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-23 21:34:11,107 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:34:11,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 260 places, 268 transitions, 546 flow [2023-11-23 21:34:11,179 INFO L124 PetriNetUnfolderBase]: 15/296 cut-off events. [2023-11-23 21:34:11,179 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 21:34:11,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 296 events. 15/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 611 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 199. Up to 6 conditions per place. [2023-11-23 21:34:11,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 260 places, 268 transitions, 546 flow [2023-11-23 21:34:11,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 260 places, 268 transitions, 546 flow [2023-11-23 21:34:11,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:34:11,196 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=LoopHeads, 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;@4fb8a45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:34:11,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-11-23 21:34:11,199 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:34:11,199 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-23 21:34:11,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:34:11,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:11,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:11,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:11,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:11,200 INFO L85 PathProgramCache]: Analyzing trace with hash 817912565, now seen corresponding path program 1 times [2023-11-23 21:34:11,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:11,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984544196] [2023-11-23 21:34:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:11,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:11,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:11,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984544196] [2023-11-23 21:34:11,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984544196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:11,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:11,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177601792] [2023-11-23 21:34:11,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:11,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:11,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:11,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:11,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 268 [2023-11-23 21:34:11,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 268 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:11,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 268 [2023-11-23 21:34:11,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:11,361 INFO L124 PetriNetUnfolderBase]: 17/481 cut-off events. [2023-11-23 21:34:11,361 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-23 21:34:11,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 481 events. 17/481 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1851 event pairs, 6 based on Foata normal form. 31/433 useless extension candidates. Maximal degree in co-relation 338. Up to 22 conditions per place. [2023-11-23 21:34:11,368 INFO L140 encePairwiseOnDemand]: 248/268 looper letters, 9 selfloop transitions, 2 changer transitions 1/237 dead transitions. [2023-11-23 21:34:11,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 237 transitions, 506 flow [2023-11-23 21:34:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:11,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 737 transitions. [2023-11-23 21:34:11,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-23 21:34:11,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 737 transitions. [2023-11-23 21:34:11,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 737 transitions. [2023-11-23 21:34:11,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:11,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 737 transitions. [2023-11-23 21:34:11,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,379 INFO L175 Difference]: Start difference. First operand has 260 places, 268 transitions, 546 flow. Second operand 3 states and 737 transitions. [2023-11-23 21:34:11,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 237 transitions, 506 flow [2023-11-23 21:34:11,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 237 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 21:34:11,385 INFO L231 Difference]: Finished difference. Result has 239 places, 236 transitions, 486 flow [2023-11-23 21:34:11,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=486, PETRI_PLACES=239, PETRI_TRANSITIONS=236} [2023-11-23 21:34:11,388 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -21 predicate places. [2023-11-23 21:34:11,388 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 236 transitions, 486 flow [2023-11-23 21:34:11,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:11,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:11,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:34:11,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:11,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:11,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1547561010, now seen corresponding path program 1 times [2023-11-23 21:34:11,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:11,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962721766] [2023-11-23 21:34:11,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:11,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:11,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:11,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:11,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962721766] [2023-11-23 21:34:11,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962721766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:11,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:11,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:11,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381254041] [2023-11-23 21:34:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:11,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:11,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:11,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:11,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 268 [2023-11-23 21:34:11,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 236 transitions, 486 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) [2023-11-23 21:34:11,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:11,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 268 [2023-11-23 21:34:11,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:11,678 INFO L124 PetriNetUnfolderBase]: 61/819 cut-off events. [2023-11-23 21:34:11,678 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-23 21:34:11,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 819 events. 61/819 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4605 event pairs, 42 based on Foata normal form. 0/687 useless extension candidates. Maximal degree in co-relation 924. Up to 102 conditions per place. [2023-11-23 21:34:11,690 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 17 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2023-11-23 21:34:11,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 235 transitions, 522 flow [2023-11-23 21:34:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:11,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2023-11-23 21:34:11,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8756218905472637 [2023-11-23 21:34:11,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 704 transitions. [2023-11-23 21:34:11,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 704 transitions. [2023-11-23 21:34:11,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:11,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 704 transitions. [2023-11-23 21:34:11,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,699 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,700 INFO L175 Difference]: Start difference. First operand has 239 places, 236 transitions, 486 flow. Second operand 3 states and 704 transitions. [2023-11-23 21:34:11,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 235 transitions, 522 flow [2023-11-23 21:34:11,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 235 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:11,706 INFO L231 Difference]: Finished difference. Result has 237 places, 235 transitions, 484 flow [2023-11-23 21:34:11,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=237, PETRI_TRANSITIONS=235} [2023-11-23 21:34:11,709 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -23 predicate places. [2023-11-23 21:34:11,709 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 235 transitions, 484 flow [2023-11-23 21:34:11,710 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) [2023-11-23 21:34:11,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:11,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:11,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:34:11,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:11,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:11,713 INFO L85 PathProgramCache]: Analyzing trace with hash -526068842, now seen corresponding path program 1 times [2023-11-23 21:34:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:11,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618090097] [2023-11-23 21:34:11,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:11,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:11,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:11,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:11,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618090097] [2023-11-23 21:34:11,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618090097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:11,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:11,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:11,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466596388] [2023-11-23 21:34:11,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:11,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:11,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:11,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:11,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:11,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 268 [2023-11-23 21:34:11,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 235 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:11,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 268 [2023-11-23 21:34:11,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:11,911 INFO L124 PetriNetUnfolderBase]: 25/560 cut-off events. [2023-11-23 21:34:11,911 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 21:34:11,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 560 events. 25/560 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2449 event pairs, 12 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 588. Up to 39 conditions per place. [2023-11-23 21:34:11,918 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 14 selfloop transitions, 2 changer transitions 0/234 dead transitions. [2023-11-23 21:34:11,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 234 transitions, 514 flow [2023-11-23 21:34:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2023-11-23 21:34:11,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8830845771144279 [2023-11-23 21:34:11,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2023-11-23 21:34:11,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2023-11-23 21:34:11,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:11,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2023-11-23 21:34:11,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,929 INFO L175 Difference]: Start difference. First operand has 237 places, 235 transitions, 484 flow. Second operand 3 states and 710 transitions. [2023-11-23 21:34:11,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 234 transitions, 514 flow [2023-11-23 21:34:11,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 234 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:11,936 INFO L231 Difference]: Finished difference. Result has 236 places, 234 transitions, 482 flow [2023-11-23 21:34:11,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=236, PETRI_TRANSITIONS=234} [2023-11-23 21:34:11,937 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -24 predicate places. [2023-11-23 21:34:11,938 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 234 transitions, 482 flow [2023-11-23 21:34:11,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:11,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:11,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:11,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:34:11,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:11,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:11,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1788792121, now seen corresponding path program 1 times [2023-11-23 21:34:11,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:11,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606768] [2023-11-23 21:34:11,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:11,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:11,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:11,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606768] [2023-11-23 21:34:11,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:11,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:11,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:11,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314882708] [2023-11-23 21:34:11,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:11,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:11,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:12,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 268 [2023-11-23 21:34:12,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 234 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:12,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 268 [2023-11-23 21:34:12,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:12,136 INFO L124 PetriNetUnfolderBase]: 39/760 cut-off events. [2023-11-23 21:34:12,136 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-23 21:34:12,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 760 events. 39/760 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4155 event pairs, 20 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 800. Up to 56 conditions per place. [2023-11-23 21:34:12,144 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 16 selfloop transitions, 1 changer transitions 0/229 dead transitions. [2023-11-23 21:34:12,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 229 transitions, 506 flow [2023-11-23 21:34:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:12,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-11-23 21:34:12,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8743781094527363 [2023-11-23 21:34:12,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-11-23 21:34:12,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-11-23 21:34:12,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:12,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-11-23 21:34:12,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,157 INFO L175 Difference]: Start difference. First operand has 236 places, 234 transitions, 482 flow. Second operand 3 states and 703 transitions. [2023-11-23 21:34:12,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 229 transitions, 506 flow [2023-11-23 21:34:12,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 229 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:12,198 INFO L231 Difference]: Finished difference. Result has 231 places, 229 transitions, 470 flow [2023-11-23 21:34:12,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=231, PETRI_TRANSITIONS=229} [2023-11-23 21:34:12,199 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -29 predicate places. [2023-11-23 21:34:12,199 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 229 transitions, 470 flow [2023-11-23 21:34:12,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:12,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:12,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:34:12,200 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:12,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:12,201 INFO L85 PathProgramCache]: Analyzing trace with hash 822062733, now seen corresponding path program 1 times [2023-11-23 21:34:12,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:12,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294792544] [2023-11-23 21:34:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:12,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:12,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294792544] [2023-11-23 21:34:12,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294792544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:12,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:12,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947588114] [2023-11-23 21:34:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:12,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:12,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 268 [2023-11-23 21:34:12,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 229 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:12,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 268 [2023-11-23 21:34:12,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:12,444 INFO L124 PetriNetUnfolderBase]: 47/718 cut-off events. [2023-11-23 21:34:12,444 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-23 21:34:12,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 718 events. 47/718 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3554 event pairs, 30 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 780. Up to 76 conditions per place. [2023-11-23 21:34:12,453 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 15 selfloop transitions, 2 changer transitions 0/228 dead transitions. [2023-11-23 21:34:12,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 228 transitions, 502 flow [2023-11-23 21:34:12,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2023-11-23 21:34:12,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8805970149253731 [2023-11-23 21:34:12,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 708 transitions. [2023-11-23 21:34:12,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 708 transitions. [2023-11-23 21:34:12,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:12,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 708 transitions. [2023-11-23 21:34:12,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,465 INFO L175 Difference]: Start difference. First operand has 231 places, 229 transitions, 470 flow. Second operand 3 states and 708 transitions. [2023-11-23 21:34:12,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 228 transitions, 502 flow [2023-11-23 21:34:12,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 228 transitions, 501 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:34:12,473 INFO L231 Difference]: Finished difference. Result has 231 places, 228 transitions, 471 flow [2023-11-23 21:34:12,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=471, PETRI_PLACES=231, PETRI_TRANSITIONS=228} [2023-11-23 21:34:12,475 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -29 predicate places. [2023-11-23 21:34:12,475 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 228 transitions, 471 flow [2023-11-23 21:34:12,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:12,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:12,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:34:12,477 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:12,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:12,477 INFO L85 PathProgramCache]: Analyzing trace with hash 804366495, now seen corresponding path program 1 times [2023-11-23 21:34:12,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:12,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173035392] [2023-11-23 21:34:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:12,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:12,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:12,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173035392] [2023-11-23 21:34:12,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173035392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:12,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:12,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:12,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389669214] [2023-11-23 21:34:12,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:12,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:12,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:12,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:12,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:12,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 268 [2023-11-23 21:34:12,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 228 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:12,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:12,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 268 [2023-11-23 21:34:12,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:13,029 INFO L124 PetriNetUnfolderBase]: 164/2130 cut-off events. [2023-11-23 21:34:13,029 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-23 21:34:13,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2460 conditions, 2130 events. 164/2130 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17571 event pairs, 57 based on Foata normal form. 0/1825 useless extension candidates. Maximal degree in co-relation 2419. Up to 204 conditions per place. [2023-11-23 21:34:13,049 INFO L140 encePairwiseOnDemand]: 248/268 looper letters, 32 selfloop transitions, 14 changer transitions 0/247 dead transitions. [2023-11-23 21:34:13,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 247 transitions, 606 flow [2023-11-23 21:34:13,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2023-11-23 21:34:13,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8930348258706468 [2023-11-23 21:34:13,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 718 transitions. [2023-11-23 21:34:13,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 718 transitions. [2023-11-23 21:34:13,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:13,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 718 transitions. [2023-11-23 21:34:13,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 268.0) internal successors, (1072), 4 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,059 INFO L175 Difference]: Start difference. First operand has 231 places, 228 transitions, 471 flow. Second operand 3 states and 718 transitions. [2023-11-23 21:34:13,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 247 transitions, 606 flow [2023-11-23 21:34:13,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 247 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:13,066 INFO L231 Difference]: Finished difference. Result has 233 places, 242 transitions, 591 flow [2023-11-23 21:34:13,066 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=233, PETRI_TRANSITIONS=242} [2023-11-23 21:34:13,067 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -27 predicate places. [2023-11-23 21:34:13,067 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 242 transitions, 591 flow [2023-11-23 21:34:13,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:13,068 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:13,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:34:13,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:13,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1524110184, now seen corresponding path program 1 times [2023-11-23 21:34:13,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:13,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023648254] [2023-11-23 21:34:13,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:13,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-23 21:34:13,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:13,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023648254] [2023-11-23 21:34:13,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023648254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:13,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:13,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:34:13,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192917448] [2023-11-23 21:34:13,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:13,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:34:13,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:13,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:34:13,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:13,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 268 [2023-11-23 21:34:13,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 242 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 231.4) internal successors, (1157), 5 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:13,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 268 [2023-11-23 21:34:13,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:13,671 INFO L124 PetriNetUnfolderBase]: 99/2023 cut-off events. [2023-11-23 21:34:13,672 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-23 21:34:13,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2296 conditions, 2023 events. 99/2023 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 16517 event pairs, 41 based on Foata normal form. 1/1734 useless extension candidates. Maximal degree in co-relation 2254. Up to 120 conditions per place. [2023-11-23 21:34:13,690 INFO L140 encePairwiseOnDemand]: 264/268 looper letters, 17 selfloop transitions, 0 changer transitions 4/245 dead transitions. [2023-11-23 21:34:13,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 245 transitions, 639 flow [2023-11-23 21:34:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:34:13,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 21:34:13,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1167 transitions. [2023-11-23 21:34:13,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8708955223880597 [2023-11-23 21:34:13,696 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1167 transitions. [2023-11-23 21:34:13,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1167 transitions. [2023-11-23 21:34:13,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:13,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1167 transitions. [2023-11-23 21:34:13,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 233.4) internal successors, (1167), 5 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,705 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 268.0) internal successors, (1608), 6 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,705 INFO L175 Difference]: Start difference. First operand has 233 places, 242 transitions, 591 flow. Second operand 5 states and 1167 transitions. [2023-11-23 21:34:13,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 245 transitions, 639 flow [2023-11-23 21:34:13,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 245 transitions, 611 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:13,714 INFO L231 Difference]: Finished difference. Result has 238 places, 241 transitions, 567 flow [2023-11-23 21:34:13,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=567, PETRI_PLACES=238, PETRI_TRANSITIONS=241} [2023-11-23 21:34:13,716 INFO L281 CegarLoopForPetriNet]: 260 programPoint places, -22 predicate places. [2023-11-23 21:34:13,717 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 241 transitions, 567 flow [2023-11-23 21:34:13,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 231.4) internal successors, (1157), 5 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:13,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:13,718 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:13,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:34:13,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-11-23 21:34:13,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1650372631, now seen corresponding path program 1 times [2023-11-23 21:34:13,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:13,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193727496] [2023-11-23 21:34:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:13,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:13,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:13,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:13,801 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:34:13,801 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2023-11-23 21:34:13,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-11-23 21:34:13,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-11-23 21:34:13,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-11-23 21:34:13,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-11-23 21:34:13,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-11-23 21:34:13,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-11-23 21:34:13,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-11-23 21:34:13,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-11-23 21:34:13,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-11-23 21:34:13,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-11-23 21:34:13,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-11-23 21:34:13,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-11-23 21:34:13,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-11-23 21:34:13,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-11-23 21:34:13,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-11-23 21:34:13,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-11-23 21:34:13,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-11-23 21:34:13,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-11-23 21:34:13,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-11-23 21:34:13,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-11-23 21:34:13,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-11-23 21:34:13,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-11-23 21:34:13,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-11-23 21:34:13,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-11-23 21:34:13,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-11-23 21:34:13,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-11-23 21:34:13,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-11-23 21:34:13,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-11-23 21:34:13,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-11-23 21:34:13,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-11-23 21:34:13,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-11-23 21:34:13,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2023-11-23 21:34:13,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-11-23 21:34:13,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-11-23 21:34:13,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-11-23 21:34:13,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-11-23 21:34:13,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-11-23 21:34:13,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-11-23 21:34:13,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-11-23 21:34:13,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-11-23 21:34:13,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-11-23 21:34:13,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-11-23 21:34:13,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-11-23 21:34:13,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-11-23 21:34:13,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-11-23 21:34:13,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-11-23 21:34:13,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-11-23 21:34:13,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-11-23 21:34:13,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-11-23 21:34:13,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-11-23 21:34:13,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-11-23 21:34:13,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-11-23 21:34:13,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:34:13,812 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:13,812 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 21:34:13,813 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-23 21:34:13,877 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:34:13,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 361 transitions, 740 flow [2023-11-23 21:34:13,975 INFO L124 PetriNetUnfolderBase]: 21/404 cut-off events. [2023-11-23 21:34:13,976 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 21:34:13,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 404 events. 21/404 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1174 event pairs, 0 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 300. Up to 8 conditions per place. [2023-11-23 21:34:13,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 361 transitions, 740 flow [2023-11-23 21:34:13,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 361 transitions, 740 flow [2023-11-23 21:34:13,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:34:13,996 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=LoopHeads, 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;@4fb8a45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:34:13,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-11-23 21:34:13,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:34:13,999 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-23 21:34:13,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:34:13,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:13,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:14,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:14,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:14,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1095128514, now seen corresponding path program 1 times [2023-11-23 21:34:14,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:14,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077095523] [2023-11-23 21:34:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:14,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077095523] [2023-11-23 21:34:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077095523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:14,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:14,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:14,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426251450] [2023-11-23 21:34:14,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:14,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:14,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 361 [2023-11-23 21:34:14,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 361 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:14,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:14,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 361 [2023-11-23 21:34:14,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:14,398 INFO L124 PetriNetUnfolderBase]: 79/1518 cut-off events. [2023-11-23 21:34:14,399 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-11-23 21:34:14,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1518 events. 79/1518 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10981 event pairs, 42 based on Foata normal form. 111/1363 useless extension candidates. Maximal degree in co-relation 1094. Up to 85 conditions per place. [2023-11-23 21:34:14,423 INFO L140 encePairwiseOnDemand]: 334/361 looper letters, 12 selfloop transitions, 2 changer transitions 1/320 dead transitions. [2023-11-23 21:34:14,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 320 transitions, 686 flow [2023-11-23 21:34:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 993 transitions. [2023-11-23 21:34:14,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9168975069252078 [2023-11-23 21:34:14,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 993 transitions. [2023-11-23 21:34:14,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 993 transitions. [2023-11-23 21:34:14,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:14,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 993 transitions. [2023-11-23 21:34:14,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:14,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:14,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:14,437 INFO L175 Difference]: Start difference. First operand has 350 places, 361 transitions, 740 flow. Second operand 3 states and 993 transitions. [2023-11-23 21:34:14,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 320 transitions, 686 flow [2023-11-23 21:34:14,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 320 transitions, 684 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-23 21:34:14,446 INFO L231 Difference]: Finished difference. Result has 322 places, 319 transitions, 658 flow [2023-11-23 21:34:14,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=322, PETRI_TRANSITIONS=319} [2023-11-23 21:34:14,449 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -28 predicate places. [2023-11-23 21:34:14,449 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 319 transitions, 658 flow [2023-11-23 21:34:14,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:14,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:14,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:14,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 21:34:14,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:14,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1230808398, now seen corresponding path program 1 times [2023-11-23 21:34:14,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:14,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126190639] [2023-11-23 21:34:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:14,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:14,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126190639] [2023-11-23 21:34:14,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126190639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:14,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:14,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:14,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693637871] [2023-11-23 21:34:14,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:14,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:14,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:14,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:14,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:14,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 361 [2023-11-23 21:34:14,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 319 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:14,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:14,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 361 [2023-11-23 21:34:14,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:15,740 INFO L124 PetriNetUnfolderBase]: 763/5752 cut-off events. [2023-11-23 21:34:15,740 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-11-23 21:34:15,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6964 conditions, 5752 events. 763/5752 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 60889 event pairs, 630 based on Foata normal form. 0/4822 useless extension candidates. Maximal degree in co-relation 6935. Up to 1033 conditions per place. [2023-11-23 21:34:15,822 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 24 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2023-11-23 21:34:15,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 318 transitions, 708 flow [2023-11-23 21:34:15,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:15,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2023-11-23 21:34:15,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8725761772853186 [2023-11-23 21:34:15,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2023-11-23 21:34:15,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2023-11-23 21:34:15,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:15,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2023-11-23 21:34:15,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:15,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:15,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:15,834 INFO L175 Difference]: Start difference. First operand has 322 places, 319 transitions, 658 flow. Second operand 3 states and 945 transitions. [2023-11-23 21:34:15,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 318 transitions, 708 flow [2023-11-23 21:34:15,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 318 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:15,845 INFO L231 Difference]: Finished difference. Result has 320 places, 318 transitions, 656 flow [2023-11-23 21:34:15,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=320, PETRI_TRANSITIONS=318} [2023-11-23 21:34:15,847 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -30 predicate places. [2023-11-23 21:34:15,847 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 318 transitions, 656 flow [2023-11-23 21:34:15,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:15,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:15,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:15,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 21:34:15,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:15,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:15,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1521495009, now seen corresponding path program 1 times [2023-11-23 21:34:15,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:15,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497361699] [2023-11-23 21:34:15,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:15,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:15,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:15,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497361699] [2023-11-23 21:34:15,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497361699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:15,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:15,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:15,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668591971] [2023-11-23 21:34:15,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:15,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:15,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:15,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 361 [2023-11-23 21:34:15,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 318 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:15,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:15,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 361 [2023-11-23 21:34:15,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:16,463 INFO L124 PetriNetUnfolderBase]: 163/2265 cut-off events. [2023-11-23 21:34:16,463 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-23 21:34:16,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 2265 events. 163/2265 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19038 event pairs, 108 based on Foata normal form. 0/1882 useless extension candidates. Maximal degree in co-relation 2501. Up to 199 conditions per place. [2023-11-23 21:34:16,503 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 18 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2023-11-23 21:34:16,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 317 transitions, 694 flow [2023-11-23 21:34:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:16,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2023-11-23 21:34:16,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8836565096952909 [2023-11-23 21:34:16,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2023-11-23 21:34:16,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2023-11-23 21:34:16,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:16,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2023-11-23 21:34:16,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:16,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:16,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:16,537 INFO L175 Difference]: Start difference. First operand has 320 places, 318 transitions, 656 flow. Second operand 3 states and 957 transitions. [2023-11-23 21:34:16,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 317 transitions, 694 flow [2023-11-23 21:34:16,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 317 transitions, 690 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:16,546 INFO L231 Difference]: Finished difference. Result has 319 places, 317 transitions, 654 flow [2023-11-23 21:34:16,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=319, PETRI_TRANSITIONS=317} [2023-11-23 21:34:16,548 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -31 predicate places. [2023-11-23 21:34:16,548 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 317 transitions, 654 flow [2023-11-23 21:34:16,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:16,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:16,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:16,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 21:34:16,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:16,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash 348150032, now seen corresponding path program 1 times [2023-11-23 21:34:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139941945] [2023-11-23 21:34:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:16,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:16,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139941945] [2023-11-23 21:34:16,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139941945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:16,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:16,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:16,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660499878] [2023-11-23 21:34:16,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:16,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:16,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:16,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 361 [2023-11-23 21:34:16,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 317 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:16,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:16,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 361 [2023-11-23 21:34:16,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:17,376 INFO L124 PetriNetUnfolderBase]: 325/4054 cut-off events. [2023-11-23 21:34:17,377 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-11-23 21:34:17,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4536 conditions, 4054 events. 325/4054 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 41107 event pairs, 220 based on Foata normal form. 0/3390 useless extension candidates. Maximal degree in co-relation 4494. Up to 381 conditions per place. [2023-11-23 21:34:17,424 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 21 selfloop transitions, 1 changer transitions 0/311 dead transitions. [2023-11-23 21:34:17,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 311 transitions, 686 flow [2023-11-23 21:34:17,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 946 transitions. [2023-11-23 21:34:17,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8734995383194829 [2023-11-23 21:34:17,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 946 transitions. [2023-11-23 21:34:17,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 946 transitions. [2023-11-23 21:34:17,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:17,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 946 transitions. [2023-11-23 21:34:17,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:17,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:17,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:17,436 INFO L175 Difference]: Start difference. First operand has 319 places, 317 transitions, 654 flow. Second operand 3 states and 946 transitions. [2023-11-23 21:34:17,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 311 transitions, 686 flow [2023-11-23 21:34:17,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 311 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:17,444 INFO L231 Difference]: Finished difference. Result has 313 places, 311 transitions, 640 flow [2023-11-23 21:34:17,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=313, PETRI_TRANSITIONS=311} [2023-11-23 21:34:17,446 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -37 predicate places. [2023-11-23 21:34:17,446 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 311 transitions, 640 flow [2023-11-23 21:34:17,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:17,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:17,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:17,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 21:34:17,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:17,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash -516510762, now seen corresponding path program 1 times [2023-11-23 21:34:17,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:17,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745945280] [2023-11-23 21:34:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:17,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:17,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745945280] [2023-11-23 21:34:17,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745945280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:17,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:17,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496126514] [2023-11-23 21:34:17,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:17,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:17,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:17,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:17,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:17,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 361 [2023-11-23 21:34:17,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 311 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:17,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:17,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 361 [2023-11-23 21:34:17,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:18,543 INFO L124 PetriNetUnfolderBase]: 493/4316 cut-off events. [2023-11-23 21:34:18,543 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-23 21:34:18,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5104 conditions, 4316 events. 493/4316 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 41118 event pairs, 390 based on Foata normal form. 0/3625 useless extension candidates. Maximal degree in co-relation 5062. Up to 652 conditions per place. [2023-11-23 21:34:18,610 INFO L140 encePairwiseOnDemand]: 358/361 looper letters, 21 selfloop transitions, 2 changer transitions 0/310 dead transitions. [2023-11-23 21:34:18,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 310 transitions, 684 flow [2023-11-23 21:34:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:18,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 951 transitions. [2023-11-23 21:34:18,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8781163434903048 [2023-11-23 21:34:18,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 951 transitions. [2023-11-23 21:34:18,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 951 transitions. [2023-11-23 21:34:18,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:18,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 951 transitions. [2023-11-23 21:34:18,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:18,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:18,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:18,624 INFO L175 Difference]: Start difference. First operand has 313 places, 311 transitions, 640 flow. Second operand 3 states and 951 transitions. [2023-11-23 21:34:18,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 310 transitions, 684 flow [2023-11-23 21:34:18,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 310 transitions, 683 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:34:18,634 INFO L231 Difference]: Finished difference. Result has 313 places, 310 transitions, 641 flow [2023-11-23 21:34:18,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=641, PETRI_PLACES=313, PETRI_TRANSITIONS=310} [2023-11-23 21:34:18,635 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -37 predicate places. [2023-11-23 21:34:18,636 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 310 transitions, 641 flow [2023-11-23 21:34:18,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:18,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:18,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:18,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 21:34:18,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:18,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:18,638 INFO L85 PathProgramCache]: Analyzing trace with hash 953950907, now seen corresponding path program 1 times [2023-11-23 21:34:18,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:18,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106277642] [2023-11-23 21:34:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:18,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:18,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:18,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106277642] [2023-11-23 21:34:18,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106277642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:18,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:18,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:18,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157758047] [2023-11-23 21:34:18,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:18,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:18,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:18,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:18,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:18,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 361 [2023-11-23 21:34:18,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 310 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:18,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:18,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 361 [2023-11-23 21:34:18,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:23,476 INFO L124 PetriNetUnfolderBase]: 4171/30338 cut-off events. [2023-11-23 21:34:23,476 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2023-11-23 21:34:23,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36797 conditions, 30338 events. 4171/30338 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 443446 event pairs, 1667 based on Foata normal form. 0/25726 useless extension candidates. Maximal degree in co-relation 36755. Up to 4132 conditions per place. [2023-11-23 21:34:23,827 INFO L140 encePairwiseOnDemand]: 331/361 looper letters, 48 selfloop transitions, 21 changer transitions 0/339 dead transitions. [2023-11-23 21:34:23,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 339 transitions, 847 flow [2023-11-23 21:34:23,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2023-11-23 21:34:23,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8864265927977839 [2023-11-23 21:34:23,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2023-11-23 21:34:23,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2023-11-23 21:34:23,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:23,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2023-11-23 21:34:23,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:23,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:23,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 361.0) internal successors, (1444), 4 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:23,841 INFO L175 Difference]: Start difference. First operand has 313 places, 310 transitions, 641 flow. Second operand 3 states and 960 transitions. [2023-11-23 21:34:23,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 339 transitions, 847 flow [2023-11-23 21:34:23,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 339 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:23,853 INFO L231 Difference]: Finished difference. Result has 315 places, 331 transitions, 823 flow [2023-11-23 21:34:23,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=315, PETRI_TRANSITIONS=331} [2023-11-23 21:34:23,856 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -35 predicate places. [2023-11-23 21:34:23,856 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 331 transitions, 823 flow [2023-11-23 21:34:23,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:23,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:23,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:23,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-23 21:34:23,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:23,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1094365633, now seen corresponding path program 1 times [2023-11-23 21:34:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:23,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860248076] [2023-11-23 21:34:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:23,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:23,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860248076] [2023-11-23 21:34:23,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860248076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:23,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:23,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:23,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353720209] [2023-11-23 21:34:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:23,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:23,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:24,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 361 [2023-11-23 21:34:24,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 331 transitions, 823 flow. Second operand has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:24,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:24,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 361 [2023-11-23 21:34:24,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:26,407 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 279#L1019true, 379#true, thrThread2of3ForFork0InUse, 270#L1047-4true, 375#(= |#race~next~0| 0), thrThread3of3ForFork0InUse]) [2023-11-23 21:34:26,407 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,407 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-23 21:34:26,407 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,407 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-23 21:34:26,527 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 279#L1019true, 379#true, thrThread2of3ForFork0InUse, 270#L1047-4true, 375#(= |#race~next~0| 0), thrThread3of3ForFork0InUse]) [2023-11-23 21:34:26,527 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,527 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-23 21:34:26,527 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,528 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,528 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-23 21:34:26,932 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][126], [44#L1028-3true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 379#true, 279#L1019true, thrThread2of3ForFork0InUse, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-23 21:34:26,932 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,932 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,932 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:26,932 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:28,144 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][164], [44#L1028-3true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, thrThread2of3ForFork0InUse, 279#L1019true, 379#true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-23 21:34:28,144 INFO L294 olderBase$Statistics]: this new event has 143 ancestors and is cut-off event [2023-11-23 21:34:28,144 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:28,145 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:28,145 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-23 21:34:30,648 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][126], [268#L1032true, 332#L1019true, 373#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 379#true, 279#L1019true, thrThread2of3ForFork0InUse, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-23 21:34:30,648 INFO L294 olderBase$Statistics]: this new event has 178 ancestors and is cut-off event [2023-11-23 21:34:30,648 INFO L297 olderBase$Statistics]: existing Event has 141 ancestors and is cut-off event [2023-11-23 21:34:30,648 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-23 21:34:30,649 INFO L297 olderBase$Statistics]: existing Event has 141 ancestors and is cut-off event [2023-11-23 21:34:30,816 INFO L124 PetriNetUnfolderBase]: 3553/39103 cut-off events. [2023-11-23 21:34:30,816 INFO L125 PetriNetUnfolderBase]: For 980/983 co-relation queries the response was YES. [2023-11-23 21:34:31,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46625 conditions, 39103 events. 3553/39103 cut-off events. For 980/983 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 611323 event pairs, 1741 based on Foata normal form. 59/33513 useless extension candidates. Maximal degree in co-relation 46583. Up to 3237 conditions per place. [2023-11-23 21:34:31,260 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 27 selfloop transitions, 3 changer transitions 0/344 dead transitions. [2023-11-23 21:34:31,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 344 transitions, 929 flow [2023-11-23 21:34:31,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:31,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 21:34:31,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2023-11-23 21:34:31,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.899584487534626 [2023-11-23 21:34:31,267 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2023-11-23 21:34:31,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2023-11-23 21:34:31,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:31,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2023-11-23 21:34:31,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:31,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:31,277 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:31,277 INFO L175 Difference]: Start difference. First operand has 315 places, 331 transitions, 823 flow. Second operand 4 states and 1299 transitions. [2023-11-23 21:34:31,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 344 transitions, 929 flow [2023-11-23 21:34:31,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 344 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:31,326 INFO L231 Difference]: Finished difference. Result has 317 places, 331 transitions, 791 flow [2023-11-23 21:34:31,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=791, PETRI_PLACES=317, PETRI_TRANSITIONS=331} [2023-11-23 21:34:31,328 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -33 predicate places. [2023-11-23 21:34:31,328 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 331 transitions, 791 flow [2023-11-23 21:34:31,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 319.0) internal successors, (1276), 4 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:31,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:31,330 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:31,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-23 21:34:31,330 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:31,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2086250991, now seen corresponding path program 1 times [2023-11-23 21:34:31,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:31,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774650485] [2023-11-23 21:34:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:31,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 21:34:31,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:31,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774650485] [2023-11-23 21:34:31,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774650485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:31,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:31,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:34:31,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025441136] [2023-11-23 21:34:31,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:31,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:34:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:31,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:34:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:31,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 361 [2023-11-23 21:34:31,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 331 transitions, 791 flow. Second operand has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:31,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:31,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 361 [2023-11-23 21:34:31,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:33,631 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1206] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread3of3ForFork0_release_#t~nondet4#1=|v_thrThread3of3ForFork0_release_#t~nondet4#1_5|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_~cond#1_7|, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread3of3ForFork0_assume_abort_if_not_~cond#1, thrThread3of3ForFork0_release_#t~nondet4#1, thrThread3of3ForFork0_assume_abort_if_not_#in~cond#1][155], [Black: 382#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 194#L1028-6true, 332#L1019true, 385#true, Black: 373#true, 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, thrThread2of3ForFork0InUse, 379#true, 279#L1019true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-23 21:34:33,632 INFO L294 olderBase$Statistics]: this new event has 138 ancestors and is cut-off event [2023-11-23 21:34:33,632 INFO L297 olderBase$Statistics]: existing Event has 138 ancestors and is cut-off event [2023-11-23 21:34:33,632 INFO L297 olderBase$Statistics]: existing Event has 138 ancestors and is cut-off event [2023-11-23 21:34:33,632 INFO L297 olderBase$Statistics]: existing Event has 127 ancestors and is cut-off event [2023-11-23 21:34:33,736 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1298] L1016-->L1019: Formula: (and (= v_~lock~0_63 0) (not (= (ite (= v_~lock~0_64 1) 1 0) 0))) InVars {~lock~0=v_~lock~0_64} OutVars{thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|, #race~lock~0=|v_#race~lock~0_72|, ~lock~0=v_~lock~0_63, thrThread2of3ForFork0_release_#t~nondet4#1=|v_thrThread2of3ForFork0_release_#t~nondet4#1_5|, thrThread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thrThread2of3ForFork0_assume_abort_if_not_~cond#1_7|} AuxVars[] AssignedVars[#race~lock~0, ~lock~0, thrThread2of3ForFork0_release_#t~nondet4#1, thrThread2of3ForFork0_assume_abort_if_not_~cond#1, thrThread2of3ForFork0_assume_abort_if_not_#in~cond#1][123], [382#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 332#L1019true, 385#true, Black: 375#(= |#race~next~0| 0), 367#(= |#race~len~0| 0), thrThread1of3ForFork0InUse, 280#L1019true, thrThread2of3ForFork0InUse, 279#L1019true, 270#L1047-4true, thrThread3of3ForFork0InUse]) [2023-11-23 21:34:33,736 INFO L294 olderBase$Statistics]: this new event has 142 ancestors and is cut-off event [2023-11-23 21:34:33,737 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-23 21:34:33,737 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-23 21:34:33,737 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-23 21:34:35,610 INFO L124 PetriNetUnfolderBase]: 2233/24524 cut-off events. [2023-11-23 21:34:35,610 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-23 21:34:35,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28569 conditions, 24524 events. 2233/24524 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 360400 event pairs, 1151 based on Foata normal form. 1/20858 useless extension candidates. Maximal degree in co-relation 28525. Up to 2300 conditions per place. [2023-11-23 21:34:35,923 INFO L140 encePairwiseOnDemand]: 357/361 looper letters, 20 selfloop transitions, 0 changer transitions 4/334 dead transitions. [2023-11-23 21:34:35,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 334 transitions, 845 flow [2023-11-23 21:34:35,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:34:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 21:34:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1580 transitions. [2023-11-23 21:34:35,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8753462603878116 [2023-11-23 21:34:35,930 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1580 transitions. [2023-11-23 21:34:35,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1580 transitions. [2023-11-23 21:34:35,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:35,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1580 transitions. [2023-11-23 21:34:35,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 316.0) internal successors, (1580), 5 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:35,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:35,943 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:35,943 INFO L175 Difference]: Start difference. First operand has 317 places, 331 transitions, 791 flow. Second operand 5 states and 1580 transitions. [2023-11-23 21:34:35,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 334 transitions, 845 flow [2023-11-23 21:34:35,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 334 transitions, 839 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-23 21:34:35,954 INFO L231 Difference]: Finished difference. Result has 321 places, 330 transitions, 789 flow [2023-11-23 21:34:35,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=785, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=789, PETRI_PLACES=321, PETRI_TRANSITIONS=330} [2023-11-23 21:34:35,956 INFO L281 CegarLoopForPetriNet]: 350 programPoint places, -29 predicate places. [2023-11-23 21:34:35,956 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 330 transitions, 789 flow [2023-11-23 21:34:35,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:35,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:35,957 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:35,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 21:34:35,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 65 more)] === [2023-11-23 21:34:35,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:35,958 INFO L85 PathProgramCache]: Analyzing trace with hash 63594023, now seen corresponding path program 1 times [2023-11-23 21:34:35,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:35,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969772507] [2023-11-23 21:34:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:35,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:36,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:34:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:34:36,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:34:36,035 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:34:36,035 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (67 of 68 remaining) [2023-11-23 21:34:36,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2023-11-23 21:34:36,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2023-11-23 21:34:36,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2023-11-23 21:34:36,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2023-11-23 21:34:36,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (62 of 68 remaining) [2023-11-23 21:34:36,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2023-11-23 21:34:36,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2023-11-23 21:34:36,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2023-11-23 21:34:36,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2023-11-23 21:34:36,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2023-11-23 21:34:36,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2023-11-23 21:34:36,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2023-11-23 21:34:36,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2023-11-23 21:34:36,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2023-11-23 21:34:36,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2023-11-23 21:34:36,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2023-11-23 21:34:36,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2023-11-23 21:34:36,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2023-11-23 21:34:36,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2023-11-23 21:34:36,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2023-11-23 21:34:36,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (46 of 68 remaining) [2023-11-23 21:34:36,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2023-11-23 21:34:36,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2023-11-23 21:34:36,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2023-11-23 21:34:36,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2023-11-23 21:34:36,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2023-11-23 21:34:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2023-11-23 21:34:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2023-11-23 21:34:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2023-11-23 21:34:36,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2023-11-23 21:34:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2023-11-23 21:34:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2023-11-23 21:34:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2023-11-23 21:34:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (33 of 68 remaining) [2023-11-23 21:34:36,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (32 of 68 remaining) [2023-11-23 21:34:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (31 of 68 remaining) [2023-11-23 21:34:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2023-11-23 21:34:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2023-11-23 21:34:36,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2023-11-23 21:34:36,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2023-11-23 21:34:36,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (26 of 68 remaining) [2023-11-23 21:34:36,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (25 of 68 remaining) [2023-11-23 21:34:36,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 68 remaining) [2023-11-23 21:34:36,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2023-11-23 21:34:36,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2023-11-23 21:34:36,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2023-11-23 21:34:36,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2023-11-23 21:34:36,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2023-11-23 21:34:36,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2023-11-23 21:34:36,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2023-11-23 21:34:36,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2023-11-23 21:34:36,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2023-11-23 21:34:36,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2023-11-23 21:34:36,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2023-11-23 21:34:36,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2023-11-23 21:34:36,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (11 of 68 remaining) [2023-11-23 21:34:36,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2023-11-23 21:34:36,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2023-11-23 21:34:36,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2023-11-23 21:34:36,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2023-11-23 21:34:36,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2023-11-23 21:34:36,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2023-11-23 21:34:36,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2023-11-23 21:34:36,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr11ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2023-11-23 21:34:36,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr12ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2023-11-23 21:34:36,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr13ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2023-11-23 21:34:36,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr14ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2023-11-23 21:34:36,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-23 21:34:36,056 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:36,057 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 21:34:36,057 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-23 21:34:36,151 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:34:36,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 454 transitions, 936 flow [2023-11-23 21:34:36,337 INFO L124 PetriNetUnfolderBase]: 27/512 cut-off events. [2023-11-23 21:34:36,338 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-23 21:34:36,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 512 events. 27/512 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1815 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 412. Up to 10 conditions per place. [2023-11-23 21:34:36,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 454 transitions, 936 flow [2023-11-23 21:34:36,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 440 places, 454 transitions, 936 flow [2023-11-23 21:34:36,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:34:36,356 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=LoopHeads, 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;@4fb8a45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:34:36,356 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-11-23 21:34:36,359 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:34:36,359 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-23 21:34:36,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:34:36,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:36,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:36,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-23 21:34:36,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash 448939332, now seen corresponding path program 1 times [2023-11-23 21:34:36,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:36,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014808453] [2023-11-23 21:34:36,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:36,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:36,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:36,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:36,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014808453] [2023-11-23 21:34:36,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014808453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:36,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:36,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:36,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126169280] [2023-11-23 21:34:36,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:36,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:36,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:36,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:36,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:36,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 454 [2023-11-23 21:34:36,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 454 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 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) [2023-11-23 21:34:36,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:36,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 454 [2023-11-23 21:34:36,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:37,731 INFO L124 PetriNetUnfolderBase]: 321/4733 cut-off events. [2023-11-23 21:34:37,732 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-11-23 21:34:37,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5250 conditions, 4733 events. 321/4733 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 48586 event pairs, 204 based on Foata normal form. 388/4280 useless extension candidates. Maximal degree in co-relation 3422. Up to 328 conditions per place. [2023-11-23 21:34:37,818 INFO L140 encePairwiseOnDemand]: 420/454 looper letters, 15 selfloop transitions, 2 changer transitions 1/403 dead transitions. [2023-11-23 21:34:37,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 403 transitions, 868 flow [2023-11-23 21:34:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2023-11-23 21:34:37,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9170337738619677 [2023-11-23 21:34:37,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2023-11-23 21:34:37,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2023-11-23 21:34:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:37,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2023-11-23 21:34:37,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:37,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:37,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:37,833 INFO L175 Difference]: Start difference. First operand has 440 places, 454 transitions, 936 flow. Second operand 3 states and 1249 transitions. [2023-11-23 21:34:37,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 403 transitions, 868 flow [2023-11-23 21:34:37,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 403 transitions, 862 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-23 21:34:37,844 INFO L231 Difference]: Finished difference. Result has 405 places, 402 transitions, 830 flow [2023-11-23 21:34:37,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=405, PETRI_TRANSITIONS=402} [2023-11-23 21:34:37,846 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -35 predicate places. [2023-11-23 21:34:37,846 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 402 transitions, 830 flow [2023-11-23 21:34:37,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 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) [2023-11-23 21:34:37,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:37,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:37,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-23 21:34:37,847 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-23 21:34:37,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash -712184242, now seen corresponding path program 1 times [2023-11-23 21:34:37,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:37,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854938562] [2023-11-23 21:34:37,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:37,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:37,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:37,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854938562] [2023-11-23 21:34:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854938562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:37,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:37,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738404237] [2023-11-23 21:34:37,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:37,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:37,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:37,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:37,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 454 [2023-11-23 21:34:37,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 402 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:37,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:37,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 454 [2023-11-23 21:34:37,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:45,908 INFO L124 PetriNetUnfolderBase]: 7737/42339 cut-off events. [2023-11-23 21:34:45,908 INFO L125 PetriNetUnfolderBase]: For 1204/1204 co-relation queries the response was YES. [2023-11-23 21:34:46,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53156 conditions, 42339 events. 7737/42339 cut-off events. For 1204/1204 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 620494 event pairs, 6804 based on Foata normal form. 0/35809 useless extension candidates. Maximal degree in co-relation 53126. Up to 9608 conditions per place. [2023-11-23 21:34:46,689 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 31 selfloop transitions, 2 changer transitions 0/401 dead transitions. [2023-11-23 21:34:46,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 401 transitions, 894 flow [2023-11-23 21:34:46,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:46,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2023-11-23 21:34:46,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8707782672540382 [2023-11-23 21:34:46,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2023-11-23 21:34:46,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2023-11-23 21:34:46,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:46,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2023-11-23 21:34:46,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:46,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:46,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:46,707 INFO L175 Difference]: Start difference. First operand has 405 places, 402 transitions, 830 flow. Second operand 3 states and 1186 transitions. [2023-11-23 21:34:46,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 401 transitions, 894 flow [2023-11-23 21:34:46,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 401 transitions, 890 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:46,720 INFO L231 Difference]: Finished difference. Result has 403 places, 401 transitions, 828 flow [2023-11-23 21:34:46,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=403, PETRI_TRANSITIONS=401} [2023-11-23 21:34:46,721 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -37 predicate places. [2023-11-23 21:34:46,722 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 401 transitions, 828 flow [2023-11-23 21:34:46,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:46,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:46,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:46,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-23 21:34:46,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-23 21:34:46,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 700684965, now seen corresponding path program 1 times [2023-11-23 21:34:46,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:46,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978500375] [2023-11-23 21:34:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:46,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:46,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:46,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978500375] [2023-11-23 21:34:46,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978500375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:46,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:46,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:46,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214720669] [2023-11-23 21:34:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:46,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:46,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:46,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:46,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 454 [2023-11-23 21:34:46,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 401 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:46,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:46,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 454 [2023-11-23 21:34:46,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:48,727 INFO L124 PetriNetUnfolderBase]: 909/9314 cut-off events. [2023-11-23 21:34:48,727 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2023-11-23 21:34:48,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10609 conditions, 9314 events. 909/9314 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 111073 event pairs, 684 based on Foata normal form. 0/7741 useless extension candidates. Maximal degree in co-relation 10574. Up to 1031 conditions per place. [2023-11-23 21:34:48,876 INFO L140 encePairwiseOnDemand]: 451/454 looper letters, 22 selfloop transitions, 2 changer transitions 0/400 dead transitions. [2023-11-23 21:34:48,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 400 transitions, 874 flow [2023-11-23 21:34:48,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1204 transitions. [2023-11-23 21:34:48,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8839941262848752 [2023-11-23 21:34:48,881 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1204 transitions. [2023-11-23 21:34:48,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1204 transitions. [2023-11-23 21:34:48,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:48,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1204 transitions. [2023-11-23 21:34:48,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 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) [2023-11-23 21:34:48,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,890 INFO L175 Difference]: Start difference. First operand has 403 places, 401 transitions, 828 flow. Second operand 3 states and 1204 transitions. [2023-11-23 21:34:48,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 400 transitions, 874 flow [2023-11-23 21:34:48,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 400 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:48,899 INFO L231 Difference]: Finished difference. Result has 402 places, 400 transitions, 826 flow [2023-11-23 21:34:48,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=402, PETRI_TRANSITIONS=400} [2023-11-23 21:34:48,901 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -38 predicate places. [2023-11-23 21:34:48,901 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 400 transitions, 826 flow [2023-11-23 21:34:48,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:48,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:48,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-23 21:34:48,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-23 21:34:48,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash 370585110, now seen corresponding path program 1 times [2023-11-23 21:34:48,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:48,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803114112] [2023-11-23 21:34:48,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:48,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:48,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:48,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:48,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803114112] [2023-11-23 21:34:48,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803114112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:48,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:48,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:48,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431971093] [2023-11-23 21:34:48,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:48,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:48,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:48,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:48,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 454 [2023-11-23 21:34:48,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 400 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:48,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 454 [2023-11-23 21:34:48,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:52,622 INFO L124 PetriNetUnfolderBase]: 2261/21173 cut-off events. [2023-11-23 21:34:52,623 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2023-11-23 21:34:52,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24156 conditions, 21173 events. 2261/21173 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 298465 event pairs, 1720 based on Foata normal form. 0/17737 useless extension candidates. Maximal degree in co-relation 24113. Up to 2506 conditions per place. [2023-11-23 21:34:52,910 INFO L140 encePairwiseOnDemand]: 446/454 looper letters, 26 selfloop transitions, 1 changer transitions 0/393 dead transitions. [2023-11-23 21:34:52,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 393 transitions, 866 flow [2023-11-23 21:34:52,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:52,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1189 transitions. [2023-11-23 21:34:52,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8729809104258444 [2023-11-23 21:34:52,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1189 transitions. [2023-11-23 21:34:52,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1189 transitions. [2023-11-23 21:34:52,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:52,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1189 transitions. [2023-11-23 21:34:52,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.3333333333333) internal successors, (1189), 3 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,923 INFO L175 Difference]: Start difference. First operand has 402 places, 400 transitions, 826 flow. Second operand 3 states and 1189 transitions. [2023-11-23 21:34:52,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 393 transitions, 866 flow [2023-11-23 21:34:52,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 393 transitions, 862 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:52,932 INFO L231 Difference]: Finished difference. Result has 395 places, 393 transitions, 810 flow [2023-11-23 21:34:52,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=395, PETRI_TRANSITIONS=393} [2023-11-23 21:34:52,934 INFO L281 CegarLoopForPetriNet]: 440 programPoint places, -45 predicate places. [2023-11-23 21:34:52,934 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 393 transitions, 810 flow [2023-11-23 21:34:52,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:52,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:52,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-23 21:34:52,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-23 21:34:52,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:52,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1188644132, now seen corresponding path program 1 times [2023-11-23 21:34:52,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:52,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74617059] [2023-11-23 21:34:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:52,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:52,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:52,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74617059] [2023-11-23 21:34:52,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74617059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:52,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:52,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:52,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865096592] [2023-11-23 21:34:52,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:52,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:52,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:52,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:52,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:53,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 454 [2023-11-23 21:34:53,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 393 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:53,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:53,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 454 [2023-11-23 21:34:53,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand