./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/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_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/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_21384208-a135-44a3-b581-22d4ac8c406c/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 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:13,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:13,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:06:13,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:13,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:13,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:13,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:13,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:13,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:13,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:13,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:13,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:13,680 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:13,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:13,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:13,683 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:06:13,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:06:13,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:06:13,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:13,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:13,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:13,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:13,686 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:06:13,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:06:13,687 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:06:13,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:13,688 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:13,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:13,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:13,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:13,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:13,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:13,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:13,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:13,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:06:13,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:06:13,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:13,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:13,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:13,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:13,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:13,695 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_21384208-a135-44a3-b581-22d4ac8c406c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 [2023-11-26 12:06:14,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:14,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:14,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:14,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:14,091 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:14,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-26 12:06:17,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:17,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:17,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-26 12:06:17,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/data/c3119f868/3c8b4a5e986a44fb8d05be2c5a33d8cb/FLAG1f6165726 [2023-11-26 12:06:17,512 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/data/c3119f868/3c8b4a5e986a44fb8d05be2c5a33d8cb [2023-11-26 12:06:17,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:17,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:17,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:17,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:17,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:17,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:17,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0b06fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17, skipping insertion in model container [2023-11-26 12:06:17,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:17,563 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:17,803 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:17,815 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:17,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:17,895 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:17,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17 WrapperNode [2023-11-26 12:06:17,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:17,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:17,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:17,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:17,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:17,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:17,998 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 874 [2023-11-26 12:06:17,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:18,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:18,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:18,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:18,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:18,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:18,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:18,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:18,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (1/1) ... [2023-11-26 12:06:18,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:18,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:18,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:18,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21384208-a135-44a3-b581-22d4ac8c406c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:06:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:06:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:06:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:06:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:06:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:06:18,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:06:18,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:06:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:06:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:06:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:06:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:18,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:06:18,194 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 12:06:18,379 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:18,381 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:19,768 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:19,810 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:19,810 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 12:06:19,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:19 BoogieIcfgContainer [2023-11-26 12:06:19,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:19,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:19,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:19,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:19,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:17" (1/3) ... [2023-11-26 12:06:19,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779d7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:19, skipping insertion in model container [2023-11-26 12:06:19,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:17" (2/3) ... [2023-11-26 12:06:19,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779d7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:19, skipping insertion in model container [2023-11-26 12:06:19,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:19" (3/3) ... [2023-11-26 12:06:19,839 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2023-11-26 12:06:19,848 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:06:19,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:19,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2023-11-26 12:06:19,856 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:06:20,142 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 12:06:20,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1085 places, 1133 transitions, 2287 flow [2023-11-26 12:06:21,162 INFO L124 PetriNetUnfolderBase]: 58/1130 cut-off events. [2023-11-26 12:06:21,162 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 12:06:21,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 1130 events. 58/1130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3903 event pairs, 0 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 857. Up to 2 conditions per place. [2023-11-26 12:06:21,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 1085 places, 1133 transitions, 2287 flow [2023-11-26 12:06:21,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1057 places, 1103 transitions, 2224 flow [2023-11-26 12:06:21,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:21,305 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;@4d1369a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:21,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2023-11-26 12:06:21,312 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:06:21,313 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-26 12:06:21,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:06:21,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:21,314 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] [2023-11-26 12:06:21,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:21,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash 741302430, now seen corresponding path program 1 times [2023-11-26 12:06:21,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:21,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86667999] [2023-11-26 12:06:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:21,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:21,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86667999] [2023-11-26 12:06:21,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86667999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:21,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:21,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252262056] [2023-11-26 12:06:21,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:21,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:21,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-26 12:06:21,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1057 places, 1103 transitions, 2224 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 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 12:06:21,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:21,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-26 12:06:21,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:24,937 INFO L124 PetriNetUnfolderBase]: 227/4435 cut-off events. [2023-11-26 12:06:24,937 INFO L125 PetriNetUnfolderBase]: For 57/64 co-relation queries the response was YES. [2023-11-26 12:06:25,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4590 conditions, 4435 events. 227/4435 cut-off events. For 57/64 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 33854 event pairs, 45 based on Foata normal form. 209/3721 useless extension candidates. Maximal degree in co-relation 3765. Up to 110 conditions per place. [2023-11-26 12:06:25,225 INFO L140 encePairwiseOnDemand]: 1112/1133 looper letters, 19 selfloop transitions, 2 changer transitions 2/1084 dead transitions. [2023-11-26 12:06:25,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1058 places, 1084 transitions, 2228 flow [2023-11-26 12:06:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-26 12:06:25,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9738158281847602 [2023-11-26 12:06:25,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-26 12:06:25,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-26 12:06:25,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:25,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-26 12:06:25,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 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 12:06:25,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:25,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:25,310 INFO L175 Difference]: Start difference. First operand has 1057 places, 1103 transitions, 2224 flow. Second operand 3 states and 3310 transitions. [2023-11-26 12:06:25,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1058 places, 1084 transitions, 2228 flow [2023-11-26 12:06:25,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1052 places, 1084 transitions, 2216 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 12:06:25,348 INFO L231 Difference]: Finished difference. Result has 1052 places, 1082 transitions, 2174 flow [2023-11-26 12:06:25,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2174, PETRI_DIFFERENCE_MINUEND_PLACES=1050, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1082, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2174, PETRI_PLACES=1052, PETRI_TRANSITIONS=1082} [2023-11-26 12:06:25,357 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -5 predicate places. [2023-11-26 12:06:25,358 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1082 transitions, 2174 flow [2023-11-26 12:06:25,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 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 12:06:25,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:25,362 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] [2023-11-26 12:06:25,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:06:25,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:25,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1558423897, now seen corresponding path program 1 times [2023-11-26 12:06:25,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:25,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922269714] [2023-11-26 12:06:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:25,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:25,502 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 12:06:25,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922269714] [2023-11-26 12:06:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922269714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:25,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:25,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209154090] [2023-11-26 12:06:25,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:25,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:25,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:25,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-26 12:06:25,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1082 transitions, 2174 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 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 12:06:25,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:25,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-26 12:06:25,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:30,609 INFO L124 PetriNetUnfolderBase]: 613/12441 cut-off events. [2023-11-26 12:06:30,609 INFO L125 PetriNetUnfolderBase]: For 8/20 co-relation queries the response was YES. [2023-11-26 12:06:30,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12675 conditions, 12441 events. 613/12441 cut-off events. For 8/20 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 124170 event pairs, 95 based on Foata normal form. 0/9786 useless extension candidates. Maximal degree in co-relation 12634. Up to 185 conditions per place. [2023-11-26 12:06:31,037 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 19 selfloop transitions, 2 changer transitions 0/1081 dead transitions. [2023-11-26 12:06:31,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 1081 transitions, 2214 flow [2023-11-26 12:06:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:31,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-11-26 12:06:31,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9685201529861724 [2023-11-26 12:06:31,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-11-26 12:06:31,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-11-26 12:06:31,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:31,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-11-26 12:06:31,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 12:06:31,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:31,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:31,084 INFO L175 Difference]: Start difference. First operand has 1052 places, 1082 transitions, 2174 flow. Second operand 3 states and 3292 transitions. [2023-11-26 12:06:31,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1051 places, 1081 transitions, 2214 flow [2023-11-26 12:06:31,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1049 places, 1081 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:31,122 INFO L231 Difference]: Finished difference. Result has 1049 places, 1081 transitions, 2172 flow [2023-11-26 12:06:31,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=1047, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1081, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1079, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2172, PETRI_PLACES=1049, PETRI_TRANSITIONS=1081} [2023-11-26 12:06:31,125 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -8 predicate places. [2023-11-26 12:06:31,125 INFO L495 AbstractCegarLoop]: Abstraction has has 1049 places, 1081 transitions, 2172 flow [2023-11-26 12:06:31,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 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 12:06:31,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:31,133 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] [2023-11-26 12:06:31,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:06:31,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:31,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:31,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1516877624, now seen corresponding path program 1 times [2023-11-26 12:06:31,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:31,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424584499] [2023-11-26 12:06:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:31,284 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 12:06:31,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:31,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424584499] [2023-11-26 12:06:31,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424584499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:31,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:31,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:31,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436447286] [2023-11-26 12:06:31,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:31,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:31,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:31,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-26 12:06:31,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1049 places, 1081 transitions, 2172 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 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 12:06:31,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:31,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-26 12:06:31,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:33,199 INFO L124 PetriNetUnfolderBase]: 241/3780 cut-off events. [2023-11-26 12:06:33,200 INFO L125 PetriNetUnfolderBase]: For 43/76 co-relation queries the response was YES. [2023-11-26 12:06:33,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3979 conditions, 3780 events. 241/3780 cut-off events. For 43/76 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 28674 event pairs, 95 based on Foata normal form. 0/3014 useless extension candidates. Maximal degree in co-relation 3930. Up to 185 conditions per place. [2023-11-26 12:06:33,375 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 19 selfloop transitions, 2 changer transitions 0/1080 dead transitions. [2023-11-26 12:06:33,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1050 places, 1080 transitions, 2212 flow [2023-11-26 12:06:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-11-26 12:06:33,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9685201529861724 [2023-11-26 12:06:33,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-11-26 12:06:33,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-11-26 12:06:33,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:33,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-11-26 12:06:33,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 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 12:06:33,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:33,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:33,416 INFO L175 Difference]: Start difference. First operand has 1049 places, 1081 transitions, 2172 flow. Second operand 3 states and 3292 transitions. [2023-11-26 12:06:33,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1050 places, 1080 transitions, 2212 flow [2023-11-26 12:06:33,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1048 places, 1080 transitions, 2208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:33,441 INFO L231 Difference]: Finished difference. Result has 1048 places, 1080 transitions, 2170 flow [2023-11-26 12:06:33,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=1046, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1080, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1078, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2170, PETRI_PLACES=1048, PETRI_TRANSITIONS=1080} [2023-11-26 12:06:33,445 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -9 predicate places. [2023-11-26 12:06:33,445 INFO L495 AbstractCegarLoop]: Abstraction has has 1048 places, 1080 transitions, 2170 flow [2023-11-26 12:06:33,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 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 12:06:33,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:33,448 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] [2023-11-26 12:06:33,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:06:33,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:33,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:33,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1023325623, now seen corresponding path program 1 times [2023-11-26 12:06:33,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:33,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792600957] [2023-11-26 12:06:33,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:33,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:33,504 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 12:06:33,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:33,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792600957] [2023-11-26 12:06:33,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792600957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:33,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:33,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:33,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826644550] [2023-11-26 12:06:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:33,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:33,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:33,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:33,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-26 12:06:33,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1048 places, 1080 transitions, 2170 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 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 12:06:33,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:33,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-26 12:06:33,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:36,267 INFO L124 PetriNetUnfolderBase]: 246/5559 cut-off events. [2023-11-26 12:06:36,267 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 12:06:36,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5635 conditions, 5559 events. 246/5559 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 44404 event pairs, 16 based on Foata normal form. 0/4396 useless extension candidates. Maximal degree in co-relation 5578. Up to 51 conditions per place. [2023-11-26 12:06:36,472 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1079 dead transitions. [2023-11-26 12:06:36,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1049 places, 1079 transitions, 2208 flow [2023-11-26 12:06:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-26 12:06:36,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-26 12:06:36,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-26 12:06:36,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-26 12:06:36,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:36,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-26 12:06:36,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 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 12:06:36,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:36,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:36,526 INFO L175 Difference]: Start difference. First operand has 1048 places, 1080 transitions, 2170 flow. Second operand 3 states and 3294 transitions. [2023-11-26 12:06:36,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1049 places, 1079 transitions, 2208 flow [2023-11-26 12:06:36,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1047 places, 1079 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:36,551 INFO L231 Difference]: Finished difference. Result has 1047 places, 1079 transitions, 2168 flow [2023-11-26 12:06:36,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2164, PETRI_DIFFERENCE_MINUEND_PLACES=1045, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2168, PETRI_PLACES=1047, PETRI_TRANSITIONS=1079} [2023-11-26 12:06:36,555 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -10 predicate places. [2023-11-26 12:06:36,556 INFO L495 AbstractCegarLoop]: Abstraction has has 1047 places, 1079 transitions, 2168 flow [2023-11-26 12:06:36,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 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 12:06:36,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:36,557 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] [2023-11-26 12:06:36,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:06:36,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:36,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:36,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1657102122, now seen corresponding path program 1 times [2023-11-26 12:06:36,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517567574] [2023-11-26 12:06:36,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:36,659 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 12:06:36,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:36,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517567574] [2023-11-26 12:06:36,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517567574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:36,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:36,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:36,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191124164] [2023-11-26 12:06:36,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:36,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:36,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:36,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:36,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-26 12:06:36,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1047 places, 1079 transitions, 2168 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 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 12:06:36,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:36,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-26 12:06:36,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:37,525 INFO L124 PetriNetUnfolderBase]: 74/1626 cut-off events. [2023-11-26 12:06:37,525 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 12:06:37,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1626 events. 74/1626 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8263 event pairs, 12 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1622. Up to 40 conditions per place. [2023-11-26 12:06:37,571 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1078 dead transitions. [2023-11-26 12:06:37,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1048 places, 1078 transitions, 2200 flow [2023-11-26 12:06:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:37,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-26 12:06:37,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-26 12:06:37,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-26 12:06:37,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-26 12:06:37,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:37,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-26 12:06:37,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 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 12:06:37,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:37,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:37,607 INFO L175 Difference]: Start difference. First operand has 1047 places, 1079 transitions, 2168 flow. Second operand 3 states and 3300 transitions. [2023-11-26 12:06:37,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1048 places, 1078 transitions, 2200 flow [2023-11-26 12:06:37,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1046 places, 1078 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:37,631 INFO L231 Difference]: Finished difference. Result has 1046 places, 1078 transitions, 2166 flow [2023-11-26 12:06:37,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2162, PETRI_DIFFERENCE_MINUEND_PLACES=1044, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1076, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2166, PETRI_PLACES=1046, PETRI_TRANSITIONS=1078} [2023-11-26 12:06:37,634 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -11 predicate places. [2023-11-26 12:06:37,635 INFO L495 AbstractCegarLoop]: Abstraction has has 1046 places, 1078 transitions, 2166 flow [2023-11-26 12:06:37,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 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 12:06:37,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:37,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:37,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:06:37,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:37,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:37,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1750689404, now seen corresponding path program 1 times [2023-11-26 12:06:37,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:37,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128359464] [2023-11-26 12:06:37,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:37,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:37,699 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 12:06:37,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:37,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128359464] [2023-11-26 12:06:37,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128359464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:37,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:37,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:37,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248708795] [2023-11-26 12:06:37,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:37,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:37,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:37,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-26 12:06:37,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 1078 transitions, 2166 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 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 12:06:37,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:37,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-26 12:06:37,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:39,447 INFO L124 PetriNetUnfolderBase]: 168/3877 cut-off events. [2023-11-26 12:06:39,447 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 12:06:39,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3931 conditions, 3877 events. 168/3877 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 26525 event pairs, 10 based on Foata normal form. 0/3080 useless extension candidates. Maximal degree in co-relation 3858. Up to 35 conditions per place. [2023-11-26 12:06:39,609 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1077 dead transitions. [2023-11-26 12:06:39,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1047 places, 1077 transitions, 2196 flow [2023-11-26 12:06:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:39,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:39,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-26 12:06:39,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-26 12:06:39,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-26 12:06:39,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-26 12:06:39,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:39,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-26 12:06:39,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 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 12:06:39,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:39,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:39,641 INFO L175 Difference]: Start difference. First operand has 1046 places, 1078 transitions, 2166 flow. Second operand 3 states and 3302 transitions. [2023-11-26 12:06:39,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1047 places, 1077 transitions, 2196 flow [2023-11-26 12:06:39,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1045 places, 1077 transitions, 2192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:39,666 INFO L231 Difference]: Finished difference. Result has 1045 places, 1077 transitions, 2164 flow [2023-11-26 12:06:39,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2160, PETRI_DIFFERENCE_MINUEND_PLACES=1043, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2164, PETRI_PLACES=1045, PETRI_TRANSITIONS=1077} [2023-11-26 12:06:39,669 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -12 predicate places. [2023-11-26 12:06:39,669 INFO L495 AbstractCegarLoop]: Abstraction has has 1045 places, 1077 transitions, 2164 flow [2023-11-26 12:06:39,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 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 12:06:39,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:39,671 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] [2023-11-26 12:06:39,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:06:39,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:39,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash 759818156, now seen corresponding path program 1 times [2023-11-26 12:06:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:39,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261767840] [2023-11-26 12:06:39,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:39,775 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 12:06:39,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:39,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261767840] [2023-11-26 12:06:39,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261767840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:39,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:39,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:39,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087294574] [2023-11-26 12:06:39,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:39,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:39,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:39,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-26 12:06:39,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1045 places, 1077 transitions, 2164 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 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 12:06:39,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:39,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-26 12:06:39,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:43,492 INFO L124 PetriNetUnfolderBase]: 350/7796 cut-off events. [2023-11-26 12:06:43,492 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 12:06:43,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7899 conditions, 7796 events. 350/7796 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 69443 event pairs, 24 based on Foata normal form. 0/6158 useless extension candidates. Maximal degree in co-relation 7818. Up to 70 conditions per place. [2023-11-26 12:06:43,992 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1076 dead transitions. [2023-11-26 12:06:43,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 1076 transitions, 2208 flow [2023-11-26 12:06:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:44,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-26 12:06:44,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-26 12:06:44,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-26 12:06:44,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-26 12:06:44,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:44,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-26 12:06:44,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 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 12:06:44,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:44,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:44,031 INFO L175 Difference]: Start difference. First operand has 1045 places, 1077 transitions, 2164 flow. Second operand 3 states and 3288 transitions. [2023-11-26 12:06:44,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1046 places, 1076 transitions, 2208 flow [2023-11-26 12:06:44,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1044 places, 1076 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:44,061 INFO L231 Difference]: Finished difference. Result has 1044 places, 1076 transitions, 2162 flow [2023-11-26 12:06:44,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=1042, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2162, PETRI_PLACES=1044, PETRI_TRANSITIONS=1076} [2023-11-26 12:06:44,065 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -13 predicate places. [2023-11-26 12:06:44,065 INFO L495 AbstractCegarLoop]: Abstraction has has 1044 places, 1076 transitions, 2162 flow [2023-11-26 12:06:44,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 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 12:06:44,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:44,067 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] [2023-11-26 12:06:44,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:06:44,067 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:44,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash 775442071, now seen corresponding path program 1 times [2023-11-26 12:06:44,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:44,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717408431] [2023-11-26 12:06:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:44,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:44,121 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 12:06:44,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:44,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717408431] [2023-11-26 12:06:44,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717408431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:44,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:44,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:44,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671120021] [2023-11-26 12:06:44,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:44,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:44,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:44,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:44,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-26 12:06:44,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1044 places, 1076 transitions, 2162 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 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 12:06:44,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:44,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-26 12:06:44,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:46,385 INFO L124 PetriNetUnfolderBase]: 150/3411 cut-off events. [2023-11-26 12:06:46,385 INFO L125 PetriNetUnfolderBase]: For 11/35 co-relation queries the response was YES. [2023-11-26 12:06:46,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3479 conditions, 3411 events. 150/3411 cut-off events. For 11/35 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22878 event pairs, 16 based on Foata normal form. 0/2721 useless extension candidates. Maximal degree in co-relation 3390. Up to 51 conditions per place. [2023-11-26 12:06:46,639 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1075 dead transitions. [2023-11-26 12:06:46,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1045 places, 1075 transitions, 2200 flow [2023-11-26 12:06:46,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:46,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-26 12:06:46,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-26 12:06:46,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-26 12:06:46,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-26 12:06:46,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:46,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-26 12:06:46,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 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 12:06:46,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:46,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:46,673 INFO L175 Difference]: Start difference. First operand has 1044 places, 1076 transitions, 2162 flow. Second operand 3 states and 3294 transitions. [2023-11-26 12:06:46,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1045 places, 1075 transitions, 2200 flow [2023-11-26 12:06:46,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1043 places, 1075 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:46,704 INFO L231 Difference]: Finished difference. Result has 1043 places, 1075 transitions, 2160 flow [2023-11-26 12:06:46,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2156, PETRI_DIFFERENCE_MINUEND_PLACES=1041, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1073, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2160, PETRI_PLACES=1043, PETRI_TRANSITIONS=1075} [2023-11-26 12:06:46,707 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -14 predicate places. [2023-11-26 12:06:46,707 INFO L495 AbstractCegarLoop]: Abstraction has has 1043 places, 1075 transitions, 2160 flow [2023-11-26 12:06:46,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 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 12:06:46,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:46,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:46,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:06:46,709 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:46,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash 188796491, now seen corresponding path program 1 times [2023-11-26 12:06:46,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:46,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466625280] [2023-11-26 12:06:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:46,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:46,761 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 12:06:46,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:46,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466625280] [2023-11-26 12:06:46,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466625280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:46,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:46,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:46,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989347381] [2023-11-26 12:06:46,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:46,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:46,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:46,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:46,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-26 12:06:46,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 1075 transitions, 2160 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 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 12:06:46,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:46,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-26 12:06:46,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:47,650 INFO L124 PetriNetUnfolderBase]: 74/1622 cut-off events. [2023-11-26 12:06:47,650 INFO L125 PetriNetUnfolderBase]: For 9/15 co-relation queries the response was YES. [2023-11-26 12:06:47,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 1622 events. 74/1622 cut-off events. For 9/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7892 event pairs, 12 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 1580. Up to 40 conditions per place. [2023-11-26 12:06:47,710 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1074 dead transitions. [2023-11-26 12:06:47,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1074 transitions, 2192 flow [2023-11-26 12:06:47,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:47,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:47,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-26 12:06:47,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-26 12:06:47,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-26 12:06:47,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-26 12:06:47,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:47,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-26 12:06:47,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 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 12:06:47,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:47,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:47,742 INFO L175 Difference]: Start difference. First operand has 1043 places, 1075 transitions, 2160 flow. Second operand 3 states and 3300 transitions. [2023-11-26 12:06:47,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 1074 transitions, 2192 flow [2023-11-26 12:06:47,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1042 places, 1074 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:47,771 INFO L231 Difference]: Finished difference. Result has 1042 places, 1074 transitions, 2158 flow [2023-11-26 12:06:47,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2154, PETRI_DIFFERENCE_MINUEND_PLACES=1040, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1072, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2158, PETRI_PLACES=1042, PETRI_TRANSITIONS=1074} [2023-11-26 12:06:47,774 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -15 predicate places. [2023-11-26 12:06:47,775 INFO L495 AbstractCegarLoop]: Abstraction has has 1042 places, 1074 transitions, 2158 flow [2023-11-26 12:06:47,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 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 12:06:47,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:47,776 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] [2023-11-26 12:06:47,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:06:47,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:47,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1586934559, now seen corresponding path program 1 times [2023-11-26 12:06:47,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:47,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572215351] [2023-11-26 12:06:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:47,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:47,829 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 12:06:47,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:47,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572215351] [2023-11-26 12:06:47,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572215351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:47,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:47,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:47,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507416896] [2023-11-26 12:06:47,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:47,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:47,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:47,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:47,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:47,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-26 12:06:47,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1042 places, 1074 transitions, 2158 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 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 12:06:47,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:47,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-26 12:06:47,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:49,431 INFO L124 PetriNetUnfolderBase]: 108/2533 cut-off events. [2023-11-26 12:06:49,431 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2023-11-26 12:06:49,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2582 conditions, 2533 events. 108/2533 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 14495 event pairs, 10 based on Foata normal form. 0/2033 useless extension candidates. Maximal degree in co-relation 2477. Up to 35 conditions per place. [2023-11-26 12:06:49,580 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1073 dead transitions. [2023-11-26 12:06:49,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1043 places, 1073 transitions, 2188 flow [2023-11-26 12:06:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-26 12:06:49,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-26 12:06:49,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-26 12:06:49,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-26 12:06:49,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:49,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-26 12:06:49,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 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 12:06:49,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:49,610 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:49,610 INFO L175 Difference]: Start difference. First operand has 1042 places, 1074 transitions, 2158 flow. Second operand 3 states and 3302 transitions. [2023-11-26 12:06:49,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1043 places, 1073 transitions, 2188 flow [2023-11-26 12:06:49,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1041 places, 1073 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:49,639 INFO L231 Difference]: Finished difference. Result has 1041 places, 1073 transitions, 2156 flow [2023-11-26 12:06:49,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2152, PETRI_DIFFERENCE_MINUEND_PLACES=1039, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2156, PETRI_PLACES=1041, PETRI_TRANSITIONS=1073} [2023-11-26 12:06:49,642 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -16 predicate places. [2023-11-26 12:06:49,642 INFO L495 AbstractCegarLoop]: Abstraction has has 1041 places, 1073 transitions, 2156 flow [2023-11-26 12:06:49,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 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 12:06:49,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:49,643 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] [2023-11-26 12:06:49,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:06:49,643 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:49,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:49,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1548338626, now seen corresponding path program 1 times [2023-11-26 12:06:49,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:49,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102544320] [2023-11-26 12:06:49,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:49,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:49,700 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 12:06:49,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:49,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102544320] [2023-11-26 12:06:49,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102544320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:49,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:49,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:49,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751375650] [2023-11-26 12:06:49,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:49,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:49,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:49,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:49,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:49,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-26 12:06:49,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 1073 transitions, 2156 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 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 12:06:49,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:49,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-26 12:06:49,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:52,658 INFO L124 PetriNetUnfolderBase]: 206/4576 cut-off events. [2023-11-26 12:06:52,658 INFO L125 PetriNetUnfolderBase]: For 15/99 co-relation queries the response was YES. [2023-11-26 12:06:52,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4667 conditions, 4576 events. 206/4576 cut-off events. For 15/99 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 34687 event pairs, 24 based on Foata normal form. 0/3639 useless extension candidates. Maximal degree in co-relation 4554. Up to 70 conditions per place. [2023-11-26 12:06:53,080 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1072 dead transitions. [2023-11-26 12:06:53,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1042 places, 1072 transitions, 2200 flow [2023-11-26 12:06:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:53,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-26 12:06:53,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-26 12:06:53,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-26 12:06:53,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-26 12:06:53,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:53,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-26 12:06:53,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 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 12:06:53,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:53,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:53,103 INFO L175 Difference]: Start difference. First operand has 1041 places, 1073 transitions, 2156 flow. Second operand 3 states and 3288 transitions. [2023-11-26 12:06:53,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1042 places, 1072 transitions, 2200 flow [2023-11-26 12:06:53,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1040 places, 1072 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:53,127 INFO L231 Difference]: Finished difference. Result has 1040 places, 1072 transitions, 2154 flow [2023-11-26 12:06:53,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2150, PETRI_DIFFERENCE_MINUEND_PLACES=1038, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1072, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2154, PETRI_PLACES=1040, PETRI_TRANSITIONS=1072} [2023-11-26 12:06:53,130 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -17 predicate places. [2023-11-26 12:06:53,130 INFO L495 AbstractCegarLoop]: Abstraction has has 1040 places, 1072 transitions, 2154 flow [2023-11-26 12:06:53,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 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 12:06:53,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:53,132 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] [2023-11-26 12:06:53,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:06:53,132 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:53,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:53,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1161432532, now seen corresponding path program 1 times [2023-11-26 12:06:53,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:53,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776392730] [2023-11-26 12:06:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:53,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:53,191 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 12:06:53,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:53,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776392730] [2023-11-26 12:06:53,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776392730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:53,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:53,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:53,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423118224] [2023-11-26 12:06:53,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:53,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:53,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:53,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:53,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:53,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-26 12:06:53,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1040 places, 1072 transitions, 2154 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 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 12:06:53,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:53,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-26 12:06:53,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:54,054 INFO L124 PetriNetUnfolderBase]: 78/1587 cut-off events. [2023-11-26 12:06:54,055 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-26 12:06:54,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 1587 events. 78/1587 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7490 event pairs, 16 based on Foata normal form. 0/1288 useless extension candidates. Maximal degree in co-relation 1528. Up to 53 conditions per place. [2023-11-26 12:06:54,118 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1071 dead transitions. [2023-11-26 12:06:54,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 1071 transitions, 2192 flow [2023-11-26 12:06:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:54,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-26 12:06:54,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-26 12:06:54,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-26 12:06:54,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-26 12:06:54,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:54,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-26 12:06:54,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 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 12:06:54,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:54,144 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:54,144 INFO L175 Difference]: Start difference. First operand has 1040 places, 1072 transitions, 2154 flow. Second operand 3 states and 3294 transitions. [2023-11-26 12:06:54,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1041 places, 1071 transitions, 2192 flow [2023-11-26 12:06:54,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1039 places, 1071 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:54,171 INFO L231 Difference]: Finished difference. Result has 1039 places, 1071 transitions, 2152 flow [2023-11-26 12:06:54,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2148, PETRI_DIFFERENCE_MINUEND_PLACES=1037, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1071, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1069, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2152, PETRI_PLACES=1039, PETRI_TRANSITIONS=1071} [2023-11-26 12:06:54,174 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -18 predicate places. [2023-11-26 12:06:54,174 INFO L495 AbstractCegarLoop]: Abstraction has has 1039 places, 1071 transitions, 2152 flow [2023-11-26 12:06:54,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 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 12:06:54,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:54,176 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] [2023-11-26 12:06:54,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:06:54,176 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:54,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1123837388, now seen corresponding path program 1 times [2023-11-26 12:06:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:54,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363240468] [2023-11-26 12:06:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:54,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:54,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363240468] [2023-11-26 12:06:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363240468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:54,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:54,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:54,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121698855] [2023-11-26 12:06:54,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:54,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:54,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:54,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:54,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-26 12:06:54,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1039 places, 1071 transitions, 2152 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 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 12:06:54,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:54,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-26 12:06:54,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:55,394 INFO L124 PetriNetUnfolderBase]: 74/1618 cut-off events. [2023-11-26 12:06:55,394 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-11-26 12:06:55,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1618 events. 74/1618 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7394 event pairs, 12 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 1538. Up to 40 conditions per place. [2023-11-26 12:06:55,496 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1070 dead transitions. [2023-11-26 12:06:55,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1040 places, 1070 transitions, 2184 flow [2023-11-26 12:06:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-26 12:06:55,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-26 12:06:55,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-26 12:06:55,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-26 12:06:55,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:55,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-26 12:06:55,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 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 12:06:55,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:55,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:55,525 INFO L175 Difference]: Start difference. First operand has 1039 places, 1071 transitions, 2152 flow. Second operand 3 states and 3300 transitions. [2023-11-26 12:06:55,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1040 places, 1070 transitions, 2184 flow [2023-11-26 12:06:55,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1038 places, 1070 transitions, 2180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:55,555 INFO L231 Difference]: Finished difference. Result has 1038 places, 1070 transitions, 2150 flow [2023-11-26 12:06:55,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1068, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2150, PETRI_PLACES=1038, PETRI_TRANSITIONS=1070} [2023-11-26 12:06:55,559 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -19 predicate places. [2023-11-26 12:06:55,559 INFO L495 AbstractCegarLoop]: Abstraction has has 1038 places, 1070 transitions, 2150 flow [2023-11-26 12:06:55,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 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 12:06:55,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:55,561 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] [2023-11-26 12:06:55,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:06:55,561 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:55,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1225030870, now seen corresponding path program 1 times [2023-11-26 12:06:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:55,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305441785] [2023-11-26 12:06:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:55,637 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 12:06:55,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305441785] [2023-11-26 12:06:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305441785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:55,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007369373] [2023-11-26 12:06:55,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:55,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:55,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:55,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:55,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-26 12:06:55,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1070 transitions, 2150 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 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 12:06:55,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:55,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-26 12:06:55,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:56,159 INFO L124 PetriNetUnfolderBase]: 48/1169 cut-off events. [2023-11-26 12:06:56,159 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2023-11-26 12:06:56,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 1169 events. 48/1169 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4765 event pairs, 10 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1076. Up to 35 conditions per place. [2023-11-26 12:06:56,204 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1069 dead transitions. [2023-11-26 12:06:56,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1069 transitions, 2180 flow [2023-11-26 12:06:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-26 12:06:56,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-26 12:06:56,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-26 12:06:56,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-26 12:06:56,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:56,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-26 12:06:56,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 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 12:06:56,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:56,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:56,225 INFO L175 Difference]: Start difference. First operand has 1038 places, 1070 transitions, 2150 flow. Second operand 3 states and 3302 transitions. [2023-11-26 12:06:56,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1069 transitions, 2180 flow [2023-11-26 12:06:56,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1037 places, 1069 transitions, 2176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:56,244 INFO L231 Difference]: Finished difference. Result has 1037 places, 1069 transitions, 2148 flow [2023-11-26 12:06:56,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=1035, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2148, PETRI_PLACES=1037, PETRI_TRANSITIONS=1069} [2023-11-26 12:06:56,246 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -20 predicate places. [2023-11-26 12:06:56,246 INFO L495 AbstractCegarLoop]: Abstraction has has 1037 places, 1069 transitions, 2148 flow [2023-11-26 12:06:56,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 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 12:06:56,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:56,247 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] [2023-11-26 12:06:56,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:06:56,247 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:56,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:56,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1294198166, now seen corresponding path program 1 times [2023-11-26 12:06:56,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:56,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295958481] [2023-11-26 12:06:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:56,311 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 12:06:56,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:56,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295958481] [2023-11-26 12:06:56,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295958481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:56,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:56,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:56,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190814540] [2023-11-26 12:06:56,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:56,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:56,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:56,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:56,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:56,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-26 12:06:56,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1037 places, 1069 transitions, 2148 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 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 12:06:56,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:56,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-26 12:06:56,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:57,075 INFO L124 PetriNetUnfolderBase]: 86/1616 cut-off events. [2023-11-26 12:06:57,075 INFO L125 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2023-11-26 12:06:57,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1616 events. 86/1616 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8518 event pairs, 24 based on Foata normal form. 0/1308 useless extension candidates. Maximal degree in co-relation 1550. Up to 70 conditions per place. [2023-11-26 12:06:57,136 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1068 dead transitions. [2023-11-26 12:06:57,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1038 places, 1068 transitions, 2192 flow [2023-11-26 12:06:57,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-26 12:06:57,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-26 12:06:57,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-26 12:06:57,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-26 12:06:57,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:57,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-26 12:06:57,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 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 12:06:57,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:57,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:57,161 INFO L175 Difference]: Start difference. First operand has 1037 places, 1069 transitions, 2148 flow. Second operand 3 states and 3288 transitions. [2023-11-26 12:06:57,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1038 places, 1068 transitions, 2192 flow [2023-11-26 12:06:57,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1036 places, 1068 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:57,186 INFO L231 Difference]: Finished difference. Result has 1036 places, 1068 transitions, 2146 flow [2023-11-26 12:06:57,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2142, PETRI_DIFFERENCE_MINUEND_PLACES=1034, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1068, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2146, PETRI_PLACES=1036, PETRI_TRANSITIONS=1068} [2023-11-26 12:06:57,189 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -21 predicate places. [2023-11-26 12:06:57,189 INFO L495 AbstractCegarLoop]: Abstraction has has 1036 places, 1068 transitions, 2146 flow [2023-11-26 12:06:57,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 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 12:06:57,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:57,191 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:57,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:06:57,191 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:57,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:57,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2011635566, now seen corresponding path program 1 times [2023-11-26 12:06:57,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:57,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033467852] [2023-11-26 12:06:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:57,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:57,256 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 12:06:57,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:57,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033467852] [2023-11-26 12:06:57,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033467852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:57,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:57,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:06:57,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507607890] [2023-11-26 12:06:57,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:57,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:57,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:57,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:57,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:57,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1097 out of 1133 [2023-11-26 12:06:57,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1036 places, 1068 transitions, 2146 flow. Second operand has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 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 12:06:57,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:57,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1097 of 1133 [2023-11-26 12:06:57,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:58,423 INFO L124 PetriNetUnfolderBase]: 122/2659 cut-off events. [2023-11-26 12:06:58,424 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-26 12:06:58,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2715 conditions, 2659 events. 122/2659 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14720 event pairs, 15 based on Foata normal form. 0/2134 useless extension candidates. Maximal degree in co-relation 2562. Up to 43 conditions per place. [2023-11-26 12:06:58,526 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 12 selfloop transitions, 2 changer transitions 0/1067 dead transitions. [2023-11-26 12:06:58,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1037 places, 1067 transitions, 2172 flow [2023-11-26 12:06:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:06:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:06:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3306 transitions. [2023-11-26 12:06:58,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9726390114739629 [2023-11-26 12:06:58,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3306 transitions. [2023-11-26 12:06:58,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3306 transitions. [2023-11-26 12:06:58,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:06:58,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3306 transitions. [2023-11-26 12:06:58,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.0) internal successors, (3306), 3 states have internal predecessors, (3306), 0 states have call successors, (0), 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 12:06:58,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:58,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 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 12:06:58,542 INFO L175 Difference]: Start difference. First operand has 1036 places, 1068 transitions, 2146 flow. Second operand 3 states and 3306 transitions. [2023-11-26 12:06:58,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1037 places, 1067 transitions, 2172 flow [2023-11-26 12:06:58,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1035 places, 1067 transitions, 2168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:06:58,564 INFO L231 Difference]: Finished difference. Result has 1035 places, 1067 transitions, 2144 flow [2023-11-26 12:06:58,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2140, PETRI_DIFFERENCE_MINUEND_PLACES=1033, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2144, PETRI_PLACES=1035, PETRI_TRANSITIONS=1067} [2023-11-26 12:06:58,566 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -22 predicate places. [2023-11-26 12:06:58,566 INFO L495 AbstractCegarLoop]: Abstraction has has 1035 places, 1067 transitions, 2144 flow [2023-11-26 12:06:58,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 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 12:06:58,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:58,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:58,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 12:06:58,568 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-26 12:06:58,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:58,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2145302927, now seen corresponding path program 1 times [2023-11-26 12:06:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:58,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588727530] [2023-11-26 12:06:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:58,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:59,647 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 12:06:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588727530] [2023-11-26 12:06:59,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588727530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:59,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:59,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:06:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223902756] [2023-11-26 12:06:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:59,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:06:59,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:59,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:06:59,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:06:59,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1133 [2023-11-26 12:06:59,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 1067 transitions, 2144 flow. Second operand has 6 states, 6 states have (on average 1070.5) internal successors, (6423), 6 states have internal predecessors, (6423), 0 states have call successors, (0), 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 12:06:59,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:59,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1133 [2023-11-26 12:06:59,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand