./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme --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 aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:21,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:21,682 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:06:21,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:21,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:21,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:21,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:21,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:21,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:21,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:21,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:21,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:21,745 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:21,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:21,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:21,748 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:06:21,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:06:21,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:06:21,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:21,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:21,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:21,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:21,751 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:06:21,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:06:21,752 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:06:21,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:21,753 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:21,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:21,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:21,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:21,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:21,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:21,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:21,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:21,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:06:21,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:06:21,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:21,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:21,760 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:21,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:21,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:21,761 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_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 [2023-11-26 12:06:22,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:22,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:22,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:22,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:22,149 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:22,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2023-11-26 12:06:25,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:25,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:25,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2023-11-26 12:06:25,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/data/54fa7063f/80b4a17157e54a6493fb5205556f96f3/FLAGef90c0558 [2023-11-26 12:06:25,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/data/54fa7063f/80b4a17157e54a6493fb5205556f96f3 [2023-11-26 12:06:25,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:25,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:25,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:25,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:25,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:25,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:25,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4e9032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25, skipping insertion in model container [2023-11-26 12:06:25,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:25,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:25,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:25,860 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:25,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:25,982 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:25,983 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:25,991 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:25,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25 WrapperNode [2023-11-26 12:06:25,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:25,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:25,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:25,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:26,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,078 INFO L138 Inliner]: procedures = 29, calls = 89, calls flagged for inlining = 23, calls inlined = 33, statements flattened = 698 [2023-11-26 12:06:26,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:26,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:26,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:26,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:26,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,106 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:26,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:26,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:26,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:26,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (1/1) ... [2023-11-26 12:06:26,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:26,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:26,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:26,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dfada71-2db8-472a-b66a-126265019229/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:06:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:06:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:06:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:06:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:06:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:06:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:06:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:06:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:06:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 12:06:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 12:06:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:06:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-26 12:06:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-26 12:06:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-26 12:06:26,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-26 12:06:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:06:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:06:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:06:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:26,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:06:26,285 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:06:26,523 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:26,525 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:27,517 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:28,143 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:28,144 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 12:06:28,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:28 BoogieIcfgContainer [2023-11-26 12:06:28,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:28,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:28,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:28,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:28,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:25" (1/3) ... [2023-11-26 12:06:28,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439b1da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:28, skipping insertion in model container [2023-11-26 12:06:28,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:25" (2/3) ... [2023-11-26 12:06:28,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439b1da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:28, skipping insertion in model container [2023-11-26 12:06:28,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:28" (3/3) ... [2023-11-26 12:06:28,159 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2023-11-26 12:06:28,169 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:06:28,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:28,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2023-11-26 12:06:28,203 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:06:28,424 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-26 12:06:28,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 595 places, 604 transitions, 1274 flow [2023-11-26 12:06:28,775 INFO L124 PetriNetUnfolderBase]: 26/528 cut-off events. [2023-11-26 12:06:28,776 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 12:06:28,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 528 events. 26/528 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 897 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 446. Up to 3 conditions per place. [2023-11-26 12:06:28,794 INFO L82 GeneralOperation]: Start removeDead. Operand has 595 places, 604 transitions, 1274 flow [2023-11-26 12:06:28,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 507 transitions, 1062 flow [2023-11-26 12:06:28,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:28,839 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;@2694848, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:28,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2023-11-26 12:06:28,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:06:28,846 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-26 12:06:28,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:06:28,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:28,847 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, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:28,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:28,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1441192774, now seen corresponding path program 1 times [2023-11-26 12:06:28,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:28,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585781644] [2023-11-26 12:06:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:29,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:29,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585781644] [2023-11-26 12:06:29,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585781644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:29,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:29,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:29,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882904031] [2023-11-26 12:06:29,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:29,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:29,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:29,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 608 [2023-11-26 12:06:29,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 507 transitions, 1062 flow. Second operand has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:29,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:29,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 608 [2023-11-26 12:06:29,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:30,991 INFO L124 PetriNetUnfolderBase]: 1355/4090 cut-off events. [2023-11-26 12:06:30,992 INFO L125 PetriNetUnfolderBase]: For 1119/1171 co-relation queries the response was YES. [2023-11-26 12:06:31,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6732 conditions, 4090 events. 1355/4090 cut-off events. For 1119/1171 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 29146 event pairs, 586 based on Foata normal form. 609/3911 useless extension candidates. Maximal degree in co-relation 6195. Up to 1712 conditions per place. [2023-11-26 12:06:31,077 INFO L140 encePairwiseOnDemand]: 544/608 looper letters, 31 selfloop transitions, 2 changer transitions 4/445 dead transitions. [2023-11-26 12:06:31,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 445 transitions, 1004 flow [2023-11-26 12:06:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1568 transitions. [2023-11-26 12:06:31,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8596491228070176 [2023-11-26 12:06:31,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1568 transitions. [2023-11-26 12:06:31,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1568 transitions. [2023-11-26 12:06:31,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:31,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1568 transitions. [2023-11-26 12:06:31,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 522.6666666666666) internal successors, (1568), 3 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) [2023-11-26 12:06:31,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:31,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:31,129 INFO L175 Difference]: Start difference. First operand has 501 places, 507 transitions, 1062 flow. Second operand 3 states and 1568 transitions. [2023-11-26 12:06:31,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 445 transitions, 1004 flow [2023-11-26 12:06:31,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 445 transitions, 972 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-26 12:06:31,152 INFO L231 Difference]: Finished difference. Result has 440 places, 441 transitions, 902 flow [2023-11-26 12:06:31,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=440, PETRI_TRANSITIONS=441} [2023-11-26 12:06:31,159 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -61 predicate places. [2023-11-26 12:06:31,159 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 441 transitions, 902 flow [2023-11-26 12:06:31,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:31,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:31,161 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] [2023-11-26 12:06:31,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:06:31,162 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:31,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:31,162 INFO L85 PathProgramCache]: Analyzing trace with hash -971507682, now seen corresponding path program 1 times [2023-11-26 12:06:31,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:31,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791306446] [2023-11-26 12:06:31,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:31,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:31,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791306446] [2023-11-26 12:06:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791306446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:31,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:31,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851528183] [2023-11-26 12:06:31,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:31,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:31,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 608 [2023-11-26 12:06:31,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 441 transitions, 902 flow. Second operand has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:31,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:31,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 608 [2023-11-26 12:06:31,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:32,783 INFO L124 PetriNetUnfolderBase]: 1361/4026 cut-off events. [2023-11-26 12:06:32,783 INFO L125 PetriNetUnfolderBase]: For 314/362 co-relation queries the response was YES. [2023-11-26 12:06:32,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5909 conditions, 4026 events. 1361/4026 cut-off events. For 314/362 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 28588 event pairs, 591 based on Foata normal form. 0/3248 useless extension candidates. Maximal degree in co-relation 5871. Up to 1720 conditions per place. [2023-11-26 12:06:32,856 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 31 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2023-11-26 12:06:32,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 440 transitions, 966 flow [2023-11-26 12:06:32,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:32,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1507 transitions. [2023-11-26 12:06:32,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8262061403508771 [2023-11-26 12:06:32,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1507 transitions. [2023-11-26 12:06:32,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1507 transitions. [2023-11-26 12:06:32,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:32,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1507 transitions. [2023-11-26 12:06:32,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:32,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:32,883 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:32,884 INFO L175 Difference]: Start difference. First operand has 440 places, 441 transitions, 902 flow. Second operand 3 states and 1507 transitions. [2023-11-26 12:06:32,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 440 transitions, 966 flow [2023-11-26 12:06:32,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 440 transitions, 962 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:32,897 INFO L231 Difference]: Finished difference. Result has 435 places, 440 transitions, 900 flow [2023-11-26 12:06:32,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=900, PETRI_PLACES=435, PETRI_TRANSITIONS=440} [2023-11-26 12:06:32,900 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -66 predicate places. [2023-11-26 12:06:32,900 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 440 transitions, 900 flow [2023-11-26 12:06:32,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:32,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:32,909 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] [2023-11-26 12:06:32,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:06:32,910 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:32,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash -995606287, now seen corresponding path program 1 times [2023-11-26 12:06:32,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:32,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424066404] [2023-11-26 12:06:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:33,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:33,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424066404] [2023-11-26 12:06:33,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424066404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:33,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:33,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:33,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526062795] [2023-11-26 12:06:33,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:33,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:33,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:33,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:33,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 608 [2023-11-26 12:06:33,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 440 transitions, 900 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:33,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:33,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 608 [2023-11-26 12:06:33,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:34,268 INFO L124 PetriNetUnfolderBase]: 1315/3920 cut-off events. [2023-11-26 12:06:34,268 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:34,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5733 conditions, 3920 events. 1315/3920 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27590 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5687. Up to 1654 conditions per place. [2023-11-26 12:06:34,335 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 29 selfloop transitions, 2 changer transitions 0/439 dead transitions. [2023-11-26 12:06:34,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 439 transitions, 960 flow [2023-11-26 12:06:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:34,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:34,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2023-11-26 12:06:34,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8300438596491229 [2023-11-26 12:06:34,342 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1514 transitions. [2023-11-26 12:06:34,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1514 transitions. [2023-11-26 12:06:34,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:34,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1514 transitions. [2023-11-26 12:06:34,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:34,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:34,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:34,359 INFO L175 Difference]: Start difference. First operand has 435 places, 440 transitions, 900 flow. Second operand 3 states and 1514 transitions. [2023-11-26 12:06:34,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 439 transitions, 960 flow [2023-11-26 12:06:34,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 439 transitions, 956 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:34,371 INFO L231 Difference]: Finished difference. Result has 434 places, 439 transitions, 898 flow [2023-11-26 12:06:34,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=434, PETRI_TRANSITIONS=439} [2023-11-26 12:06:34,374 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -67 predicate places. [2023-11-26 12:06:34,374 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 439 transitions, 898 flow [2023-11-26 12:06:34,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:34,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:34,376 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] [2023-11-26 12:06:34,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:06:34,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:34,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:34,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1949500246, now seen corresponding path program 1 times [2023-11-26 12:06:34,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:34,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801157899] [2023-11-26 12:06:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:34,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:34,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:34,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801157899] [2023-11-26 12:06:34,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801157899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:34,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:34,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:34,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47715297] [2023-11-26 12:06:34,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:34,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:34,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:34,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:34,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:34,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 608 [2023-11-26 12:06:34,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 439 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:34,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:34,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 608 [2023-11-26 12:06:34,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:35,665 INFO L124 PetriNetUnfolderBase]: 1315/3919 cut-off events. [2023-11-26 12:06:35,665 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:35,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5732 conditions, 3919 events. 1315/3919 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27643 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5678. Up to 1654 conditions per place. [2023-11-26 12:06:35,837 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 29 selfloop transitions, 2 changer transitions 0/438 dead transitions. [2023-11-26 12:06:35,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 438 transitions, 958 flow [2023-11-26 12:06:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:35,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2023-11-26 12:06:35,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8300438596491229 [2023-11-26 12:06:35,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1514 transitions. [2023-11-26 12:06:35,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1514 transitions. [2023-11-26 12:06:35,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:35,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1514 transitions. [2023-11-26 12:06:35,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:35,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:35,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:35,858 INFO L175 Difference]: Start difference. First operand has 434 places, 439 transitions, 898 flow. Second operand 3 states and 1514 transitions. [2023-11-26 12:06:35,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 438 transitions, 958 flow [2023-11-26 12:06:35,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 438 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:35,875 INFO L231 Difference]: Finished difference. Result has 433 places, 438 transitions, 896 flow [2023-11-26 12:06:35,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=433, PETRI_TRANSITIONS=438} [2023-11-26 12:06:35,878 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -68 predicate places. [2023-11-26 12:06:35,878 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 438 transitions, 896 flow [2023-11-26 12:06:35,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:35,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:35,880 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] [2023-11-26 12:06:35,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:06:35,881 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:35,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:35,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1292014865, now seen corresponding path program 1 times [2023-11-26 12:06:35,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:35,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023160588] [2023-11-26 12:06:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:35,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023160588] [2023-11-26 12:06:35,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023160588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:35,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:35,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844096345] [2023-11-26 12:06:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:35,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:35,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:35,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 608 [2023-11-26 12:06:35,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 438 transitions, 896 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:35,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:35,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 608 [2023-11-26 12:06:35,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:37,028 INFO L124 PetriNetUnfolderBase]: 1315/3918 cut-off events. [2023-11-26 12:06:37,028 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:37,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5731 conditions, 3918 events. 1315/3918 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27576 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5669. Up to 1654 conditions per place. [2023-11-26 12:06:37,086 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 29 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2023-11-26 12:06:37,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 437 transitions, 956 flow [2023-11-26 12:06:37,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:37,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:37,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2023-11-26 12:06:37,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8300438596491229 [2023-11-26 12:06:37,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1514 transitions. [2023-11-26 12:06:37,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1514 transitions. [2023-11-26 12:06:37,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:37,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1514 transitions. [2023-11-26 12:06:37,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:37,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:37,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:37,104 INFO L175 Difference]: Start difference. First operand has 433 places, 438 transitions, 896 flow. Second operand 3 states and 1514 transitions. [2023-11-26 12:06:37,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 437 transitions, 956 flow [2023-11-26 12:06:37,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 437 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:37,114 INFO L231 Difference]: Finished difference. Result has 432 places, 437 transitions, 894 flow [2023-11-26 12:06:37,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=432, PETRI_TRANSITIONS=437} [2023-11-26 12:06:37,116 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -69 predicate places. [2023-11-26 12:06:37,116 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 437 transitions, 894 flow [2023-11-26 12:06:37,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:37,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:37,118 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] [2023-11-26 12:06:37,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:06:37,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:37,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:37,119 INFO L85 PathProgramCache]: Analyzing trace with hash -969045149, now seen corresponding path program 1 times [2023-11-26 12:06:37,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:37,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668380101] [2023-11-26 12:06:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:37,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:37,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:37,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668380101] [2023-11-26 12:06:37,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668380101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:37,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:37,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:37,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59888060] [2023-11-26 12:06:37,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:37,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:37,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:37,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:37,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:37,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 608 [2023-11-26 12:06:37,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 437 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:37,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:37,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 608 [2023-11-26 12:06:37,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:38,107 INFO L124 PetriNetUnfolderBase]: 1315/3917 cut-off events. [2023-11-26 12:06:38,108 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:38,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5730 conditions, 3917 events. 1315/3917 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27558 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5660. Up to 1654 conditions per place. [2023-11-26 12:06:38,169 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 29 selfloop transitions, 2 changer transitions 0/436 dead transitions. [2023-11-26 12:06:38,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 436 transitions, 954 flow [2023-11-26 12:06:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2023-11-26 12:06:38,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8300438596491229 [2023-11-26 12:06:38,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1514 transitions. [2023-11-26 12:06:38,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1514 transitions. [2023-11-26 12:06:38,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:38,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1514 transitions. [2023-11-26 12:06:38,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:38,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:38,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:38,195 INFO L175 Difference]: Start difference. First operand has 432 places, 437 transitions, 894 flow. Second operand 3 states and 1514 transitions. [2023-11-26 12:06:38,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 436 transitions, 954 flow [2023-11-26 12:06:38,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 436 transitions, 950 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:38,207 INFO L231 Difference]: Finished difference. Result has 431 places, 436 transitions, 892 flow [2023-11-26 12:06:38,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=431, PETRI_TRANSITIONS=436} [2023-11-26 12:06:38,209 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -70 predicate places. [2023-11-26 12:06:38,210 INFO L495 AbstractCegarLoop]: Abstraction has has 431 places, 436 transitions, 892 flow [2023-11-26 12:06:38,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:38,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:38,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:38,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:06:38,212 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:38,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1565374181, now seen corresponding path program 1 times [2023-11-26 12:06:38,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:38,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129783260] [2023-11-26 12:06:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:38,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:38,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:38,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129783260] [2023-11-26 12:06:38,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129783260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:38,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:38,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:38,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597853999] [2023-11-26 12:06:38,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:38,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:38,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:38,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:38,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:38,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 608 [2023-11-26 12:06:38,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 436 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:38,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:38,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 608 [2023-11-26 12:06:38,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:39,467 INFO L124 PetriNetUnfolderBase]: 1315/3916 cut-off events. [2023-11-26 12:06:39,468 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:39,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5735 conditions, 3916 events. 1315/3916 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27729 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5657. Up to 1660 conditions per place. [2023-11-26 12:06:39,534 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 35 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2023-11-26 12:06:39,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 435 transitions, 964 flow [2023-11-26 12:06:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:39,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1502 transitions. [2023-11-26 12:06:39,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8234649122807017 [2023-11-26 12:06:39,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1502 transitions. [2023-11-26 12:06:39,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1502 transitions. [2023-11-26 12:06:39,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:39,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1502 transitions. [2023-11-26 12:06:39,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:39,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:39,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:39,555 INFO L175 Difference]: Start difference. First operand has 431 places, 436 transitions, 892 flow. Second operand 3 states and 1502 transitions. [2023-11-26 12:06:39,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 435 transitions, 964 flow [2023-11-26 12:06:39,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 435 transitions, 960 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:39,567 INFO L231 Difference]: Finished difference. Result has 430 places, 435 transitions, 890 flow [2023-11-26 12:06:39,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=430, PETRI_TRANSITIONS=435} [2023-11-26 12:06:39,569 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -71 predicate places. [2023-11-26 12:06:39,569 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 435 transitions, 890 flow [2023-11-26 12:06:39,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:39,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:39,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:39,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:06:39,571 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:39,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1958188051, now seen corresponding path program 1 times [2023-11-26 12:06:39,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:39,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134272270] [2023-11-26 12:06:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:39,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:39,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:39,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134272270] [2023-11-26 12:06:39,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134272270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:39,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:39,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:39,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75903331] [2023-11-26 12:06:39,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:39,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:39,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:39,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:39,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:39,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 493 out of 608 [2023-11-26 12:06:39,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 435 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:39,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:39,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 493 of 608 [2023-11-26 12:06:39,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:40,779 INFO L124 PetriNetUnfolderBase]: 1315/3915 cut-off events. [2023-11-26 12:06:40,779 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:40,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5729 conditions, 3915 events. 1315/3915 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27572 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5643. Up to 1655 conditions per place. [2023-11-26 12:06:40,841 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 30 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2023-11-26 12:06:40,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 434 transitions, 952 flow [2023-11-26 12:06:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:40,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1512 transitions. [2023-11-26 12:06:40,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8289473684210527 [2023-11-26 12:06:40,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1512 transitions. [2023-11-26 12:06:40,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1512 transitions. [2023-11-26 12:06:40,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:40,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1512 transitions. [2023-11-26 12:06:40,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:40,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:40,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:40,862 INFO L175 Difference]: Start difference. First operand has 430 places, 435 transitions, 890 flow. Second operand 3 states and 1512 transitions. [2023-11-26 12:06:40,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 434 transitions, 952 flow [2023-11-26 12:06:40,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 434 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:40,875 INFO L231 Difference]: Finished difference. Result has 429 places, 434 transitions, 888 flow [2023-11-26 12:06:40,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=429, PETRI_TRANSITIONS=434} [2023-11-26 12:06:40,877 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -72 predicate places. [2023-11-26 12:06:40,877 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 434 transitions, 888 flow [2023-11-26 12:06:40,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:40,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:40,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:40,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:06:40,879 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:40,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:40,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1122814909, now seen corresponding path program 1 times [2023-11-26 12:06:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:40,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77430690] [2023-11-26 12:06:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:40,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:40,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77430690] [2023-11-26 12:06:40,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77430690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:40,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:40,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:40,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536370180] [2023-11-26 12:06:40,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:40,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:40,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:40,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:40,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:40,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 493 out of 608 [2023-11-26 12:06:40,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 434 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:40,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:40,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 493 of 608 [2023-11-26 12:06:40,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:41,993 INFO L124 PetriNetUnfolderBase]: 1315/3914 cut-off events. [2023-11-26 12:06:41,993 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:42,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5728 conditions, 3914 events. 1315/3914 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27664 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5634. Up to 1655 conditions per place. [2023-11-26 12:06:42,038 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 30 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2023-11-26 12:06:42,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 433 transitions, 950 flow [2023-11-26 12:06:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:42,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1512 transitions. [2023-11-26 12:06:42,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8289473684210527 [2023-11-26 12:06:42,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1512 transitions. [2023-11-26 12:06:42,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1512 transitions. [2023-11-26 12:06:42,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:42,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1512 transitions. [2023-11-26 12:06:42,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:42,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:42,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:42,061 INFO L175 Difference]: Start difference. First operand has 429 places, 434 transitions, 888 flow. Second operand 3 states and 1512 transitions. [2023-11-26 12:06:42,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 433 transitions, 950 flow [2023-11-26 12:06:42,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 433 transitions, 946 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:42,071 INFO L231 Difference]: Finished difference. Result has 428 places, 433 transitions, 886 flow [2023-11-26 12:06:42,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=886, PETRI_PLACES=428, PETRI_TRANSITIONS=433} [2023-11-26 12:06:42,073 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -73 predicate places. [2023-11-26 12:06:42,074 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 433 transitions, 886 flow [2023-11-26 12:06:42,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:42,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:42,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:42,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:06:42,075 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:42,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:42,076 INFO L85 PathProgramCache]: Analyzing trace with hash 418709339, now seen corresponding path program 1 times [2023-11-26 12:06:42,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:42,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115102170] [2023-11-26 12:06:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:42,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:42,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:42,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:42,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115102170] [2023-11-26 12:06:42,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115102170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:42,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:42,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:42,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458949716] [2023-11-26 12:06:42,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:42,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:42,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:42,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:42,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:42,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 493 out of 608 [2023-11-26 12:06:42,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 433 transitions, 886 flow. Second operand has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:42,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:42,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 493 of 608 [2023-11-26 12:06:42,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:43,037 INFO L124 PetriNetUnfolderBase]: 1315/3913 cut-off events. [2023-11-26 12:06:43,037 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:43,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5727 conditions, 3913 events. 1315/3913 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27619 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5625. Up to 1655 conditions per place. [2023-11-26 12:06:43,083 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 30 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2023-11-26 12:06:43,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 432 transitions, 948 flow [2023-11-26 12:06:43,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1512 transitions. [2023-11-26 12:06:43,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8289473684210527 [2023-11-26 12:06:43,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1512 transitions. [2023-11-26 12:06:43,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1512 transitions. [2023-11-26 12:06:43,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:43,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1512 transitions. [2023-11-26 12:06:43,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:43,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:43,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:43,103 INFO L175 Difference]: Start difference. First operand has 428 places, 433 transitions, 886 flow. Second operand 3 states and 1512 transitions. [2023-11-26 12:06:43,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 432 transitions, 948 flow [2023-11-26 12:06:43,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 432 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:43,114 INFO L231 Difference]: Finished difference. Result has 427 places, 432 transitions, 884 flow [2023-11-26 12:06:43,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=427, PETRI_TRANSITIONS=432} [2023-11-26 12:06:43,116 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -74 predicate places. [2023-11-26 12:06:43,116 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 432 transitions, 884 flow [2023-11-26 12:06:43,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:43,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:43,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:43,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:06:43,117 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:43,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:43,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1515953364, now seen corresponding path program 1 times [2023-11-26 12:06:43,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:43,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199598129] [2023-11-26 12:06:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:43,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:43,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:43,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:43,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199598129] [2023-11-26 12:06:43,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199598129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:43,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:43,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:43,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154690605] [2023-11-26 12:06:43,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:43,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:43,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:43,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 493 out of 608 [2023-11-26 12:06:43,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 432 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:43,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:43,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 493 of 608 [2023-11-26 12:06:43,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:44,016 INFO L124 PetriNetUnfolderBase]: 1315/3912 cut-off events. [2023-11-26 12:06:44,016 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:44,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5726 conditions, 3912 events. 1315/3912 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27608 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5616. Up to 1655 conditions per place. [2023-11-26 12:06:44,058 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 30 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2023-11-26 12:06:44,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 431 transitions, 946 flow [2023-11-26 12:06:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:44,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1512 transitions. [2023-11-26 12:06:44,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8289473684210527 [2023-11-26 12:06:44,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1512 transitions. [2023-11-26 12:06:44,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1512 transitions. [2023-11-26 12:06:44,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:44,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1512 transitions. [2023-11-26 12:06:44,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:44,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:44,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:44,075 INFO L175 Difference]: Start difference. First operand has 427 places, 432 transitions, 884 flow. Second operand 3 states and 1512 transitions. [2023-11-26 12:06:44,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 431 transitions, 946 flow [2023-11-26 12:06:44,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 431 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:44,086 INFO L231 Difference]: Finished difference. Result has 426 places, 431 transitions, 882 flow [2023-11-26 12:06:44,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=426, PETRI_TRANSITIONS=431} [2023-11-26 12:06:44,088 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -75 predicate places. [2023-11-26 12:06:44,088 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 431 transitions, 882 flow [2023-11-26 12:06:44,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:44,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:44,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:44,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:06:44,090 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:44,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 733431462, now seen corresponding path program 1 times [2023-11-26 12:06:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:44,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185123172] [2023-11-26 12:06:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:44,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:44,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:44,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185123172] [2023-11-26 12:06:44,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185123172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:44,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:44,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:44,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664224782] [2023-11-26 12:06:44,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:44,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:44,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:44,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:44,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 608 [2023-11-26 12:06:44,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 431 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:44,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:44,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 608 [2023-11-26 12:06:44,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:45,059 INFO L124 PetriNetUnfolderBase]: 1402/4181 cut-off events. [2023-11-26 12:06:45,059 INFO L125 PetriNetUnfolderBase]: For 321/373 co-relation queries the response was YES. [2023-11-26 12:06:45,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6128 conditions, 4181 events. 1402/4181 cut-off events. For 321/373 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 30069 event pairs, 613 based on Foata normal form. 0/3389 useless extension candidates. Maximal degree in co-relation 6010. Up to 1780 conditions per place. [2023-11-26 12:06:45,100 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 33 selfloop transitions, 2 changer transitions 0/430 dead transitions. [2023-11-26 12:06:45,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 430 transitions, 950 flow [2023-11-26 12:06:45,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1500 transitions. [2023-11-26 12:06:45,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8223684210526315 [2023-11-26 12:06:45,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1500 transitions. [2023-11-26 12:06:45,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1500 transitions. [2023-11-26 12:06:45,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:45,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1500 transitions. [2023-11-26 12:06:45,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 500.0) internal successors, (1500), 3 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:45,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:45,115 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:45,115 INFO L175 Difference]: Start difference. First operand has 426 places, 431 transitions, 882 flow. Second operand 3 states and 1500 transitions. [2023-11-26 12:06:45,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 430 transitions, 950 flow [2023-11-26 12:06:45,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 430 transitions, 946 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:45,125 INFO L231 Difference]: Finished difference. Result has 425 places, 430 transitions, 880 flow [2023-11-26 12:06:45,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=425, PETRI_TRANSITIONS=430} [2023-11-26 12:06:45,127 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -76 predicate places. [2023-11-26 12:06:45,127 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 430 transitions, 880 flow [2023-11-26 12:06:45,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:45,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:45,128 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:45,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:06:45,128 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:45,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1591190514, now seen corresponding path program 1 times [2023-11-26 12:06:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:45,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422785611] [2023-11-26 12:06:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:45,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:45,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:45,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422785611] [2023-11-26 12:06:45,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422785611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:45,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:45,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:45,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100288741] [2023-11-26 12:06:45,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:45,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:45,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:45,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:45,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 608 [2023-11-26 12:06:45,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 430 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:45,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:45,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 608 [2023-11-26 12:06:45,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:46,184 INFO L124 PetriNetUnfolderBase]: 1507/4602 cut-off events. [2023-11-26 12:06:46,184 INFO L125 PetriNetUnfolderBase]: For 343/391 co-relation queries the response was YES. [2023-11-26 12:06:46,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6708 conditions, 4602 events. 1507/4602 cut-off events. For 343/391 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 33591 event pairs, 676 based on Foata normal form. 0/3770 useless extension candidates. Maximal degree in co-relation 6582. Up to 1928 conditions per place. [2023-11-26 12:06:46,227 INFO L140 encePairwiseOnDemand]: 603/608 looper letters, 34 selfloop transitions, 1 changer transitions 0/426 dead transitions. [2023-11-26 12:06:46,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 426 transitions, 942 flow [2023-11-26 12:06:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:46,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1485 transitions. [2023-11-26 12:06:46,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8141447368421053 [2023-11-26 12:06:46,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1485 transitions. [2023-11-26 12:06:46,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1485 transitions. [2023-11-26 12:06:46,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:46,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1485 transitions. [2023-11-26 12:06:46,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.0) internal successors, (1485), 3 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:46,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:46,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:46,242 INFO L175 Difference]: Start difference. First operand has 425 places, 430 transitions, 880 flow. Second operand 3 states and 1485 transitions. [2023-11-26 12:06:46,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 426 transitions, 942 flow [2023-11-26 12:06:46,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 426 transitions, 938 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:46,251 INFO L231 Difference]: Finished difference. Result has 421 places, 426 transitions, 870 flow [2023-11-26 12:06:46,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=421, PETRI_TRANSITIONS=426} [2023-11-26 12:06:46,253 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -80 predicate places. [2023-11-26 12:06:46,253 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 426 transitions, 870 flow [2023-11-26 12:06:46,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:46,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:46,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:46,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:06:46,254 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:46,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1896467054, now seen corresponding path program 1 times [2023-11-26 12:06:46,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:46,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465150222] [2023-11-26 12:06:46,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:46,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:46,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465150222] [2023-11-26 12:06:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465150222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:46,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054471341] [2023-11-26 12:06:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:46,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:46,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:46,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 608 [2023-11-26 12:06:46,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 426 transitions, 870 flow. Second operand has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:46,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:46,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 608 [2023-11-26 12:06:46,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:47,168 INFO L124 PetriNetUnfolderBase]: 1315/3898 cut-off events. [2023-11-26 12:06:47,168 INFO L125 PetriNetUnfolderBase]: For 305/353 co-relation queries the response was YES. [2023-11-26 12:06:47,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5710 conditions, 3898 events. 1315/3898 cut-off events. For 305/353 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 27457 event pairs, 565 based on Foata normal form. 0/3162 useless extension candidates. Maximal degree in co-relation 5584. Up to 1654 conditions per place. [2023-11-26 12:06:47,206 INFO L140 encePairwiseOnDemand]: 605/608 looper letters, 29 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2023-11-26 12:06:47,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 425 transitions, 930 flow [2023-11-26 12:06:47,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1514 transitions. [2023-11-26 12:06:47,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8300438596491229 [2023-11-26 12:06:47,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1514 transitions. [2023-11-26 12:06:47,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1514 transitions. [2023-11-26 12:06:47,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:47,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1514 transitions. [2023-11-26 12:06:47,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:47,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:47,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:47,221 INFO L175 Difference]: Start difference. First operand has 421 places, 426 transitions, 870 flow. Second operand 3 states and 1514 transitions. [2023-11-26 12:06:47,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 425 transitions, 930 flow [2023-11-26 12:06:47,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 425 transitions, 929 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:06:47,231 INFO L231 Difference]: Finished difference. Result has 421 places, 425 transitions, 871 flow [2023-11-26 12:06:47,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=871, PETRI_PLACES=421, PETRI_TRANSITIONS=425} [2023-11-26 12:06:47,232 INFO L281 CegarLoopForPetriNet]: 501 programPoint places, -80 predicate places. [2023-11-26 12:06:47,233 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 425 transitions, 871 flow [2023-11-26 12:06:47,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 495.3333333333333) internal successors, (1486), 3 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:47,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:47,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:47,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:06:47,234 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-26 12:06:47,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:47,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1613812528, now seen corresponding path program 1 times [2023-11-26 12:06:47,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:47,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713680673] [2023-11-26 12:06:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:47,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:48,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713680673] [2023-11-26 12:06:48,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713680673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:48,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:48,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:06:48,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900297180] [2023-11-26 12:06:48,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:48,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:48,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:48,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:48,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 608 [2023-11-26 12:06:48,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 425 transitions, 871 flow. Second operand has 6 states, 6 states have (on average 456.5) internal successors, (2739), 6 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:06:48,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:48,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 608 [2023-11-26 12:06:48,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand