./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:30:11,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:11,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:11,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:11,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:11,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:11,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:11,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:11,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:11,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:11,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:11,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:11,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:11,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:11,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:11,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:11,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:11,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:11,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:11,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:11,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:11,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:11,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:11,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:11,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:11,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:11,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:11,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:11,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:11,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:11,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:11,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:11,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:11,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:11,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:11,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:11,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:11,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:11,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:11,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:11,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:11,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:30:11,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:11,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:11,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:11,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:11,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:11,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:11,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:11,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:11,742 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:11,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:11,742 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:30:11,742 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:30:11,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:30:11,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:30:11,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:11,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:11,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:11,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:11,744 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:30:11,744 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:30:11,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:11,744 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:11,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:11,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:11,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:11,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:11,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:11,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:11,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:11,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:11,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:30:11,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:30:11,746 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:11,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:11,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:11,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-20 10:30:12,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:12,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:12,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:12,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:12,053 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:12,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-20 10:30:15,222 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:15,410 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:15,410 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-20 10:30:15,417 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/data/22c6a4d68/1bc157d973134b7c98c2908d4adc80a9/FLAG10794ea22 [2022-11-20 10:30:15,432 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/data/22c6a4d68/1bc157d973134b7c98c2908d4adc80a9 [2022-11-20 10:30:15,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:15,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:15,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:15,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:15,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:15,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:15,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e084363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15, skipping insertion in model container [2022-11-20 10:30:15,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:15,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:15,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:15,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-20 10:30:15,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:15,808 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:30:15,860 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-20 10:30:15,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:15,884 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:30:15,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15 WrapperNode [2022-11-20 10:30:15,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:15,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:15,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:30:15,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:30:15,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:15,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:15,998 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 799 [2022-11-20 10:30:15,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:15,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:30:15,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:30:15,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:30:16,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:30:16,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:30:16,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:30:16,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:30:16,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (1/1) ... [2022-11-20 10:30:16,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:16,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:16,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:16,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06132190-760a-43c5-97ef-38ff1a228eef/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:30:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:30:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:30:16,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:30:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:30:16,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:30:16,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:30:16,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:30:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:30:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:30:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:30:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:30:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:30:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:30:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:30:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:30:16,188 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:30:16,401 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:30:16,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:30:17,985 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:30:18,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:30:18,017 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 10:30:18,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:18 BoogieIcfgContainer [2022-11-20 10:30:18,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:30:18,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:30:18,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:30:18,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:30:18,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:30:15" (1/3) ... [2022-11-20 10:30:18,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a81e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:18, skipping insertion in model container [2022-11-20 10:30:18,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:15" (2/3) ... [2022-11-20 10:30:18,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a81e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:18, skipping insertion in model container [2022-11-20 10:30:18,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:18" (3/3) ... [2022-11-20 10:30:18,040 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-20 10:30:18,049 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:30:18,061 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:30:18,061 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2022-11-20 10:30:18,061 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:30:18,268 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 10:30:18,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-20 10:30:19,052 INFO L130 PetriNetUnfolder]: 48/1052 cut-off events. [2022-11-20 10:30:19,053 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:30:19,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 1052 events. 48/1052 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2224 event pairs, 0 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-20 10:30:19,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-20 10:30:19,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 991 places, 1026 transitions, 2070 flow [2022-11-20 10:30:19,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:19,132 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a303ac9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:19,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2022-11-20 10:30:19,139 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-11-20 10:30:19,140 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:30:19,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:19,142 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:19,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:19,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1505703215, now seen corresponding path program 1 times [2022-11-20 10:30:19,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:19,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282251467] [2022-11-20 10:30:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:19,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:19,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:19,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282251467] [2022-11-20 10:30:19,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282251467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:19,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:19,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005756520] [2022-11-20 10:30:19,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:19,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:19,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:19,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:19,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-20 10:30:19,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 991 places, 1026 transitions, 2070 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:19,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:19,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-20 10:30:19,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:22,438 INFO L130 PetriNetUnfolder]: 379/5191 cut-off events. [2022-11-20 10:30:22,438 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-11-20 10:30:22,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5958 conditions, 5191 events. 379/5191 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 43548 event pairs, 279 based on Foata normal form. 171/4395 useless extension candidates. Maximal degree in co-relation 5211. Up to 522 conditions per place. [2022-11-20 10:30:22,592 INFO L137 encePairwiseOnDemand]: 1024/1055 looper letters, 39 selfloop transitions, 2 changer transitions 16/997 dead transitions. [2022-11-20 10:30:22,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 992 places, 997 transitions, 2094 flow [2022-11-20 10:30:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3019 transitions. [2022-11-20 10:30:22,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.953870458135861 [2022-11-20 10:30:22,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3019 transitions. [2022-11-20 10:30:22,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3019 transitions. [2022-11-20 10:30:22,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:22,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3019 transitions. [2022-11-20 10:30:22,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1006.3333333333334) internal successors, (3019), 3 states have internal predecessors, (3019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:22,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:22,663 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:22,665 INFO L175 Difference]: Start difference. First operand has 991 places, 1026 transitions, 2070 flow. Second operand 3 states and 3019 transitions. [2022-11-20 10:30:22,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 992 places, 997 transitions, 2094 flow [2022-11-20 10:30:22,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 986 places, 997 transitions, 2082 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:30:22,707 INFO L231 Difference]: Finished difference. Result has 986 places, 981 transitions, 1972 flow [2022-11-20 10:30:22,711 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=2000, PETRI_DIFFERENCE_MINUEND_PLACES=984, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=997, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=995, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1972, PETRI_PLACES=986, PETRI_TRANSITIONS=981} [2022-11-20 10:30:22,716 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -5 predicate places. [2022-11-20 10:30:22,716 INFO L495 AbstractCegarLoop]: Abstraction has has 986 places, 981 transitions, 1972 flow [2022-11-20 10:30:22,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:22,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:22,719 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:22,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:30:22,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:22,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1285876605, now seen corresponding path program 1 times [2022-11-20 10:30:22,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:22,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786097766] [2022-11-20 10:30:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:22,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:22,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:22,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786097766] [2022-11-20 10:30:22,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786097766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:22,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:22,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:22,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766772697] [2022-11-20 10:30:22,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:22,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:22,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:22,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:22,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:22,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-20 10:30:22,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 986 places, 981 transitions, 1972 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:22,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:22,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-20 10:30:22,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:24,650 INFO L130 PetriNetUnfolder]: 212/3982 cut-off events. [2022-11-20 10:30:24,650 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-20 10:30:24,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4303 conditions, 3982 events. 212/3982 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 30041 event pairs, 132 based on Foata normal form. 0/3334 useless extension candidates. Maximal degree in co-relation 4256. Up to 257 conditions per place. [2022-11-20 10:30:24,760 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/971 dead transitions. [2022-11-20 10:30:24,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 971 transitions, 2008 flow [2022-11-20 10:30:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-20 10:30:24,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-20 10:30:24,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-20 10:30:24,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-20 10:30:24,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:24,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-20 10:30:24,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:24,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:24,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:24,788 INFO L175 Difference]: Start difference. First operand has 986 places, 981 transitions, 1972 flow. Second operand 3 states and 2996 transitions. [2022-11-20 10:30:24,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 971 transitions, 2008 flow [2022-11-20 10:30:24,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 971 transitions, 2004 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:24,806 INFO L231 Difference]: Finished difference. Result has 960 places, 971 transitions, 1950 flow [2022-11-20 10:30:24,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1948, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1950, PETRI_PLACES=960, PETRI_TRANSITIONS=971} [2022-11-20 10:30:24,808 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-20 10:30:24,809 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 971 transitions, 1950 flow [2022-11-20 10:30:24,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:24,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:24,812 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:24,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:30:24,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash 488479564, now seen corresponding path program 1 times [2022-11-20 10:30:24,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:24,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123316791] [2022-11-20 10:30:24,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:24,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:24,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:24,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123316791] [2022-11-20 10:30:24,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123316791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:24,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:24,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:24,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995273336] [2022-11-20 10:30:24,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:24,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:24,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:24,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:24,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:24,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-20 10:30:24,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 971 transitions, 1950 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:24,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:24,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-20 10:30:24,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:26,637 INFO L130 PetriNetUnfolder]: 187/3345 cut-off events. [2022-11-20 10:30:26,638 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-20 10:30:26,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3650 conditions, 3345 events. 187/3345 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 22446 event pairs, 117 based on Foata normal form. 0/2754 useless extension candidates. Maximal degree in co-relation 3604. Up to 279 conditions per place. [2022-11-20 10:30:26,728 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2022-11-20 10:30:26,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 970 transitions, 2030 flow [2022-11-20 10:30:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-20 10:30:26,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-20 10:30:26,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-20 10:30:26,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-20 10:30:26,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:26,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-20 10:30:26,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:26,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:26,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:26,757 INFO L175 Difference]: Start difference. First operand has 960 places, 971 transitions, 1950 flow. Second operand 3 states and 2991 transitions. [2022-11-20 10:30:26,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 970 transitions, 2030 flow [2022-11-20 10:30:26,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 970 transitions, 2029 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:30:26,775 INFO L231 Difference]: Finished difference. Result has 960 places, 970 transitions, 1951 flow [2022-11-20 10:30:26,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=960, PETRI_TRANSITIONS=970} [2022-11-20 10:30:26,778 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -31 predicate places. [2022-11-20 10:30:26,778 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 970 transitions, 1951 flow [2022-11-20 10:30:26,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:26,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:26,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:26,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:30:26,781 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash -686664239, now seen corresponding path program 1 times [2022-11-20 10:30:26,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:26,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389499741] [2022-11-20 10:30:26,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:26,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:26,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:26,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389499741] [2022-11-20 10:30:26,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389499741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:26,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:26,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:26,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271433894] [2022-11-20 10:30:26,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:26,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:26,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:26,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:26,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:26,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-20 10:30:26,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 970 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:26,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:26,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-20 10:30:26,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:28,176 INFO L130 PetriNetUnfolder]: 119/2776 cut-off events. [2022-11-20 10:30:28,176 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-20 10:30:28,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 2776 events. 119/2776 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16735 event pairs, 60 based on Foata normal form. 0/2346 useless extension candidates. Maximal degree in co-relation 2903. Up to 149 conditions per place. [2022-11-20 10:30:28,269 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/960 dead transitions. [2022-11-20 10:30:28,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 960 transitions, 1987 flow [2022-11-20 10:30:28,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:28,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-20 10:30:28,276 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-20 10:30:28,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-20 10:30:28,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-20 10:30:28,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:28,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-20 10:30:28,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:28,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:28,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:28,298 INFO L175 Difference]: Start difference. First operand has 960 places, 970 transitions, 1951 flow. Second operand 3 states and 2996 transitions. [2022-11-20 10:30:28,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 960 transitions, 1987 flow [2022-11-20 10:30:28,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 960 transitions, 1983 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:28,314 INFO L231 Difference]: Finished difference. Result has 950 places, 960 transitions, 1929 flow [2022-11-20 10:30:28,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=950, PETRI_TRANSITIONS=960} [2022-11-20 10:30:28,316 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-20 10:30:28,317 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 960 transitions, 1929 flow [2022-11-20 10:30:28,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:28,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:28,319 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:28,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:30:28,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:28,320 INFO L85 PathProgramCache]: Analyzing trace with hash 869118729, now seen corresponding path program 1 times [2022-11-20 10:30:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:28,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168206570] [2022-11-20 10:30:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:28,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:28,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168206570] [2022-11-20 10:30:28,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168206570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:28,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:28,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:28,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543371119] [2022-11-20 10:30:28,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:28,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:28,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:28,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:28,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:28,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 983 out of 1055 [2022-11-20 10:30:28,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 960 transitions, 1929 flow. Second operand has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:28,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:28,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 983 of 1055 [2022-11-20 10:30:28,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:30,147 INFO L130 PetriNetUnfolder]: 399/4762 cut-off events. [2022-11-20 10:30:30,147 INFO L131 PetriNetUnfolder]: For 122/166 co-relation queries the response was YES. [2022-11-20 10:30:30,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5329 conditions, 4762 events. 399/4762 cut-off events. For 122/166 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 40217 event pairs, 279 based on Foata normal form. 0/3935 useless extension candidates. Maximal degree in co-relation 5283. Up to 549 conditions per place. [2022-11-20 10:30:30,246 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 39 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2022-11-20 10:30:30,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 959 transitions, 2009 flow [2022-11-20 10:30:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:30,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2991 transitions. [2022-11-20 10:30:30,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9450236966824644 [2022-11-20 10:30:30,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2991 transitions. [2022-11-20 10:30:30,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2991 transitions. [2022-11-20 10:30:30,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:30,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2991 transitions. [2022-11-20 10:30:30,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 997.0) internal successors, (2991), 3 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,275 INFO L175 Difference]: Start difference. First operand has 950 places, 960 transitions, 1929 flow. Second operand 3 states and 2991 transitions. [2022-11-20 10:30:30,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 959 transitions, 2009 flow [2022-11-20 10:30:30,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 959 transitions, 2008 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:30:30,294 INFO L231 Difference]: Finished difference. Result has 950 places, 959 transitions, 1930 flow [2022-11-20 10:30:30,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1930, PETRI_PLACES=950, PETRI_TRANSITIONS=959} [2022-11-20 10:30:30,297 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -41 predicate places. [2022-11-20 10:30:30,297 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 959 transitions, 1930 flow [2022-11-20 10:30:30,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 984.3333333333334) internal successors, (2953), 3 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:30,299 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:30,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:30:30,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:30,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1678627460, now seen corresponding path program 1 times [2022-11-20 10:30:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:30,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433316850] [2022-11-20 10:30:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:30,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:30,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433316850] [2022-11-20 10:30:30,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433316850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:30,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:30,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769038552] [2022-11-20 10:30:30,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:30,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1055 [2022-11-20 10:30:30,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 959 transitions, 1930 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:30,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:30,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1055 [2022-11-20 10:30:30,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:31,790 INFO L130 PetriNetUnfolder]: 226/3719 cut-off events. [2022-11-20 10:30:31,790 INFO L131 PetriNetUnfolder]: For 65/94 co-relation queries the response was YES. [2022-11-20 10:30:31,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 3719 events. 226/3719 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27176 event pairs, 132 based on Foata normal form. 0/3164 useless extension candidates. Maximal degree in co-relation 3966. Up to 274 conditions per place. [2022-11-20 10:30:31,864 INFO L137 encePairwiseOnDemand]: 1044/1055 looper letters, 27 selfloop transitions, 1 changer transitions 0/949 dead transitions. [2022-11-20 10:30:31,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 942 places, 949 transitions, 1966 flow [2022-11-20 10:30:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:31,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2996 transitions. [2022-11-20 10:30:31,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9466034755134282 [2022-11-20 10:30:31,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2996 transitions. [2022-11-20 10:30:31,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2996 transitions. [2022-11-20 10:30:31,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:31,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2996 transitions. [2022-11-20 10:30:31,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 998.6666666666666) internal successors, (2996), 3 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,895 INFO L175 Difference]: Start difference. First operand has 950 places, 959 transitions, 1930 flow. Second operand 3 states and 2996 transitions. [2022-11-20 10:30:31,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 942 places, 949 transitions, 1966 flow [2022-11-20 10:30:31,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 949 transitions, 1962 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:31,916 INFO L231 Difference]: Finished difference. Result has 940 places, 949 transitions, 1908 flow [2022-11-20 10:30:31,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1906, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1908, PETRI_PLACES=940, PETRI_TRANSITIONS=949} [2022-11-20 10:30:31,919 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-20 10:30:31,919 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 949 transitions, 1908 flow [2022-11-20 10:30:31,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:31,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:31,921 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:31,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:30:31,922 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:31,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1015479503, now seen corresponding path program 1 times [2022-11-20 10:30:31,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:31,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850357165] [2022-11-20 10:30:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:31,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:32,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:32,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:32,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850357165] [2022-11-20 10:30:32,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850357165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:32,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:32,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:32,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663041951] [2022-11-20 10:30:32,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:32,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:32,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:32,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:32,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:32,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 1055 [2022-11-20 10:30:32,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 949 transitions, 1908 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:32,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 1055 [2022-11-20 10:30:32,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:32,499 INFO L130 PetriNetUnfolder]: 29/1284 cut-off events. [2022-11-20 10:30:32,499 INFO L131 PetriNetUnfolder]: For 3/9 co-relation queries the response was YES. [2022-11-20 10:30:32,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 1284 events. 29/1284 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3677 event pairs, 6 based on Foata normal form. 0/1122 useless extension candidates. Maximal degree in co-relation 1282. Up to 28 conditions per place. [2022-11-20 10:30:32,528 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 15 selfloop transitions, 2 changer transitions 0/948 dead transitions. [2022-11-20 10:30:32,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 948 transitions, 1940 flow [2022-11-20 10:30:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:32,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3039 transitions. [2022-11-20 10:30:32,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9601895734597157 [2022-11-20 10:30:32,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3039 transitions. [2022-11-20 10:30:32,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3039 transitions. [2022-11-20 10:30:32,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:32,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3039 transitions. [2022-11-20 10:30:32,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1013.0) internal successors, (3039), 3 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,557 INFO L175 Difference]: Start difference. First operand has 940 places, 949 transitions, 1908 flow. Second operand 3 states and 3039 transitions. [2022-11-20 10:30:32,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 948 transitions, 1940 flow [2022-11-20 10:30:32,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 948 transitions, 1939 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:30:32,578 INFO L231 Difference]: Finished difference. Result has 940 places, 948 transitions, 1909 flow [2022-11-20 10:30:32,580 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=938, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1909, PETRI_PLACES=940, PETRI_TRANSITIONS=948} [2022-11-20 10:30:32,581 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -51 predicate places. [2022-11-20 10:30:32,581 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 948 transitions, 1909 flow [2022-11-20 10:30:32,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:32,583 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:32,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:30:32,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash -213390034, now seen corresponding path program 1 times [2022-11-20 10:30:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:32,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613860995] [2022-11-20 10:30:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:32,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:32,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:32,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613860995] [2022-11-20 10:30:32,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613860995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:32,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:32,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:32,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047732926] [2022-11-20 10:30:32,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:32,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:32,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:32,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:32,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:32,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:32,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 948 transitions, 1909 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:32,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:32,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:32,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:33,209 INFO L130 PetriNetUnfolder]: 47/1527 cut-off events. [2022-11-20 10:30:33,209 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:30:33,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1527 events. 47/1527 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6629 event pairs, 18 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 1566. Up to 55 conditions per place. [2022-11-20 10:30:33,235 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/947 dead transitions. [2022-11-20 10:30:33,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 947 transitions, 1947 flow [2022-11-20 10:30:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:33,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:33,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:33,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:33,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:33,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:33,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,264 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,265 INFO L175 Difference]: Start difference. First operand has 940 places, 948 transitions, 1909 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:33,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 947 transitions, 1947 flow [2022-11-20 10:30:33,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 947 transitions, 1943 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:33,286 INFO L231 Difference]: Finished difference. Result has 939 places, 947 transitions, 1907 flow [2022-11-20 10:30:33,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=947, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1907, PETRI_PLACES=939, PETRI_TRANSITIONS=947} [2022-11-20 10:30:33,289 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -52 predicate places. [2022-11-20 10:30:33,289 INFO L495 AbstractCegarLoop]: Abstraction has has 939 places, 947 transitions, 1907 flow [2022-11-20 10:30:33,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:33,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:33,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:30:33,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:33,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2095493891, now seen corresponding path program 1 times [2022-11-20 10:30:33,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:33,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985217114] [2022-11-20 10:30:33,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:33,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:33,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:33,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985217114] [2022-11-20 10:30:33,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985217114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:33,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:33,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:33,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497403297] [2022-11-20 10:30:33,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:33,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:33,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:33,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:33,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:33,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:33,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 939 places, 947 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:33,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:33,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:33,884 INFO L130 PetriNetUnfolder]: 47/1488 cut-off events. [2022-11-20 10:30:33,885 INFO L131 PetriNetUnfolder]: For 3/21 co-relation queries the response was YES. [2022-11-20 10:30:33,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 1488 events. 47/1488 cut-off events. For 3/21 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6121 event pairs, 18 based on Foata normal form. 0/1292 useless extension candidates. Maximal degree in co-relation 1527. Up to 55 conditions per place. [2022-11-20 10:30:33,912 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/946 dead transitions. [2022-11-20 10:30:33,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 940 places, 946 transitions, 1945 flow [2022-11-20 10:30:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:33,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:33,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:33,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:33,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:33,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:33,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,944 INFO L175 Difference]: Start difference. First operand has 939 places, 947 transitions, 1907 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:33,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 940 places, 946 transitions, 1945 flow [2022-11-20 10:30:33,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 938 places, 946 transitions, 1941 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:33,966 INFO L231 Difference]: Finished difference. Result has 938 places, 946 transitions, 1905 flow [2022-11-20 10:30:33,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1901, PETRI_DIFFERENCE_MINUEND_PLACES=936, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1905, PETRI_PLACES=938, PETRI_TRANSITIONS=946} [2022-11-20 10:30:33,969 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -53 predicate places. [2022-11-20 10:30:33,969 INFO L495 AbstractCegarLoop]: Abstraction has has 938 places, 946 transitions, 1905 flow [2022-11-20 10:30:33,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:33,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:33,970 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:33,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:30:33,971 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:33,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1851955568, now seen corresponding path program 1 times [2022-11-20 10:30:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:33,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576080824] [2022-11-20 10:30:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:34,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:34,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576080824] [2022-11-20 10:30:34,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576080824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:34,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:34,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115149515] [2022-11-20 10:30:34,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:34,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:34,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:34,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:34,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:34,035 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:34,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 946 transitions, 1905 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:34,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:34,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:34,569 INFO L130 PetriNetUnfolder]: 26/1140 cut-off events. [2022-11-20 10:30:34,569 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-20 10:30:34,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1140 events. 26/1140 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3110 event pairs, 6 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1140. Up to 31 conditions per place. [2022-11-20 10:30:34,594 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/945 dead transitions. [2022-11-20 10:30:34,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 939 places, 945 transitions, 1943 flow [2022-11-20 10:30:34,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:34,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:34,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:34,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:34,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:34,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:34,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:34,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,619 INFO L175 Difference]: Start difference. First operand has 938 places, 946 transitions, 1905 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:34,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 939 places, 945 transitions, 1943 flow [2022-11-20 10:30:34,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 937 places, 945 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:34,640 INFO L231 Difference]: Finished difference. Result has 937 places, 945 transitions, 1903 flow [2022-11-20 10:30:34,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1899, PETRI_DIFFERENCE_MINUEND_PLACES=935, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1903, PETRI_PLACES=937, PETRI_TRANSITIONS=945} [2022-11-20 10:30:34,642 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -54 predicate places. [2022-11-20 10:30:34,642 INFO L495 AbstractCegarLoop]: Abstraction has has 937 places, 945 transitions, 1903 flow [2022-11-20 10:30:34,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:34,644 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:34,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:30:34,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:34,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1192903320, now seen corresponding path program 1 times [2022-11-20 10:30:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:34,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464640079] [2022-11-20 10:30:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:34,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:34,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464640079] [2022-11-20 10:30:34,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464640079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:34,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:34,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:34,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062757453] [2022-11-20 10:30:34,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:34,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:34,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:34,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:34,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:34,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:34,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 937 places, 945 transitions, 1903 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:34,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:34,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:34,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:35,206 INFO L130 PetriNetUnfolder]: 44/1383 cut-off events. [2022-11-20 10:30:35,207 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-20 10:30:35,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1383 events. 44/1383 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5289 event pairs, 18 based on Foata normal form. 0/1200 useless extension candidates. Maximal degree in co-relation 1413. Up to 55 conditions per place. [2022-11-20 10:30:35,232 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/944 dead transitions. [2022-11-20 10:30:35,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 944 transitions, 1941 flow [2022-11-20 10:30:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:35,238 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:35,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:35,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:35,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:35,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:35,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,251 INFO L175 Difference]: Start difference. First operand has 937 places, 945 transitions, 1903 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:35,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 938 places, 944 transitions, 1941 flow [2022-11-20 10:30:35,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 936 places, 944 transitions, 1937 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:35,267 INFO L231 Difference]: Finished difference. Result has 936 places, 944 transitions, 1901 flow [2022-11-20 10:30:35,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1897, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=942, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1901, PETRI_PLACES=936, PETRI_TRANSITIONS=944} [2022-11-20 10:30:35,269 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -55 predicate places. [2022-11-20 10:30:35,269 INFO L495 AbstractCegarLoop]: Abstraction has has 936 places, 944 transitions, 1901 flow [2022-11-20 10:30:35,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,270 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:35,270 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:35,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:30:35,271 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:35,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1535219156, now seen corresponding path program 1 times [2022-11-20 10:30:35,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:35,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489710021] [2022-11-20 10:30:35,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:35,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:35,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:35,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489710021] [2022-11-20 10:30:35,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489710021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:35,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:35,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:35,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518964229] [2022-11-20 10:30:35,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:35,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:35,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:35,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:35,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:35,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:35,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 936 places, 944 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:35,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:35,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:35,693 INFO L130 PetriNetUnfolder]: 44/1344 cut-off events. [2022-11-20 10:30:35,694 INFO L131 PetriNetUnfolder]: For 12/44 co-relation queries the response was YES. [2022-11-20 10:30:35,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 1344 events. 44/1344 cut-off events. For 12/44 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5110 event pairs, 18 based on Foata normal form. 0/1168 useless extension candidates. Maximal degree in co-relation 1374. Up to 55 conditions per place. [2022-11-20 10:30:35,714 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/943 dead transitions. [2022-11-20 10:30:35,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 937 places, 943 transitions, 1939 flow [2022-11-20 10:30:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:35,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:35,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:35,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:35,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:35,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:35,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,730 INFO L175 Difference]: Start difference. First operand has 936 places, 944 transitions, 1901 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:35,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 937 places, 943 transitions, 1939 flow [2022-11-20 10:30:35,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 943 transitions, 1935 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:35,745 INFO L231 Difference]: Finished difference. Result has 935 places, 943 transitions, 1899 flow [2022-11-20 10:30:35,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1895, PETRI_DIFFERENCE_MINUEND_PLACES=933, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=941, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1899, PETRI_PLACES=935, PETRI_TRANSITIONS=943} [2022-11-20 10:30:35,748 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -56 predicate places. [2022-11-20 10:30:35,748 INFO L495 AbstractCegarLoop]: Abstraction has has 935 places, 943 transitions, 1899 flow [2022-11-20 10:30:35,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:35,749 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:35,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:30:35,749 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:35,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1286036932, now seen corresponding path program 1 times [2022-11-20 10:30:35,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:35,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726309208] [2022-11-20 10:30:35,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:35,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:35,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726309208] [2022-11-20 10:30:35,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726309208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:35,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:35,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644060482] [2022-11-20 10:30:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:35,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:35,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:35,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 943 transitions, 1899 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:35,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:35,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:35,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:36,090 INFO L130 PetriNetUnfolder]: 23/976 cut-off events. [2022-11-20 10:30:36,090 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-20 10:30:36,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 976 events. 23/976 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2299 event pairs, 6 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 972. Up to 30 conditions per place. [2022-11-20 10:30:36,110 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 17 selfloop transitions, 2 changer transitions 0/942 dead transitions. [2022-11-20 10:30:36,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 936 places, 942 transitions, 1935 flow [2022-11-20 10:30:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3032 transitions. [2022-11-20 10:30:36,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9579778830963666 [2022-11-20 10:30:36,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3032 transitions. [2022-11-20 10:30:36,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3032 transitions. [2022-11-20 10:30:36,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:36,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3032 transitions. [2022-11-20 10:30:36,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1010.6666666666666) internal successors, (3032), 3 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,127 INFO L175 Difference]: Start difference. First operand has 935 places, 943 transitions, 1899 flow. Second operand 3 states and 3032 transitions. [2022-11-20 10:30:36,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 936 places, 942 transitions, 1935 flow [2022-11-20 10:30:36,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 934 places, 942 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:36,143 INFO L231 Difference]: Finished difference. Result has 934 places, 942 transitions, 1897 flow [2022-11-20 10:30:36,145 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1893, PETRI_DIFFERENCE_MINUEND_PLACES=932, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=942, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1897, PETRI_PLACES=934, PETRI_TRANSITIONS=942} [2022-11-20 10:30:36,145 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -57 predicate places. [2022-11-20 10:30:36,145 INFO L495 AbstractCegarLoop]: Abstraction has has 934 places, 942 transitions, 1897 flow [2022-11-20 10:30:36,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,146 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:36,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:36,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:30:36,147 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:36,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:36,147 INFO L85 PathProgramCache]: Analyzing trace with hash -765294360, now seen corresponding path program 1 times [2022-11-20 10:30:36,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:36,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085404165] [2022-11-20 10:30:36,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:36,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:36,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:36,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085404165] [2022-11-20 10:30:36,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085404165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:36,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:36,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:36,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102668833] [2022-11-20 10:30:36,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:36,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:36,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:36,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 942 transitions, 1897 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:36,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:36,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:36,566 INFO L130 PetriNetUnfolder]: 41/1219 cut-off events. [2022-11-20 10:30:36,566 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-20 10:30:36,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1219 events. 41/1219 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3865 event pairs, 18 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1240. Up to 55 conditions per place. [2022-11-20 10:30:36,590 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/941 dead transitions. [2022-11-20 10:30:36,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 941 transitions, 1935 flow [2022-11-20 10:30:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:36,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:36,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:36,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:36,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:36,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:36,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,606 INFO L175 Difference]: Start difference. First operand has 934 places, 942 transitions, 1897 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:36,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 941 transitions, 1935 flow [2022-11-20 10:30:36,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 933 places, 941 transitions, 1931 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:36,622 INFO L231 Difference]: Finished difference. Result has 933 places, 941 transitions, 1895 flow [2022-11-20 10:30:36,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=931, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=933, PETRI_TRANSITIONS=941} [2022-11-20 10:30:36,624 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -58 predicate places. [2022-11-20 10:30:36,624 INFO L495 AbstractCegarLoop]: Abstraction has has 933 places, 941 transitions, 1895 flow [2022-11-20 10:30:36,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:36,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:36,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:30:36,625 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:36,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:36,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1312072732, now seen corresponding path program 1 times [2022-11-20 10:30:36,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:36,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603206920] [2022-11-20 10:30:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:36,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:36,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:36,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:36,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603206920] [2022-11-20 10:30:36,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603206920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:36,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:36,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:36,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376172085] [2022-11-20 10:30:36,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:36,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:36,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:36,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:36,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:36,676 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1004 out of 1055 [2022-11-20 10:30:36,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 933 places, 941 transitions, 1895 flow. Second operand has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:36,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:36,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1004 of 1055 [2022-11-20 10:30:36,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:36,999 INFO L130 PetriNetUnfolder]: 41/1180 cut-off events. [2022-11-20 10:30:36,999 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-20 10:30:37,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1247 conditions, 1180 events. 41/1180 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3654 event pairs, 18 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 1201. Up to 55 conditions per place. [2022-11-20 10:30:37,014 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 18 selfloop transitions, 2 changer transitions 0/940 dead transitions. [2022-11-20 10:30:37,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 940 transitions, 1933 flow [2022-11-20 10:30:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3033 transitions. [2022-11-20 10:30:37,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582938388625593 [2022-11-20 10:30:37,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3033 transitions. [2022-11-20 10:30:37,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3033 transitions. [2022-11-20 10:30:37,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:37,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3033 transitions. [2022-11-20 10:30:37,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1011.0) internal successors, (3033), 3 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,029 INFO L175 Difference]: Start difference. First operand has 933 places, 941 transitions, 1895 flow. Second operand 3 states and 3033 transitions. [2022-11-20 10:30:37,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 934 places, 940 transitions, 1933 flow [2022-11-20 10:30:37,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 932 places, 940 transitions, 1929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:37,043 INFO L231 Difference]: Finished difference. Result has 932 places, 940 transitions, 1893 flow [2022-11-20 10:30:37,044 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=930, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1893, PETRI_PLACES=932, PETRI_TRANSITIONS=940} [2022-11-20 10:30:37,045 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -59 predicate places. [2022-11-20 10:30:37,045 INFO L495 AbstractCegarLoop]: Abstraction has has 932 places, 940 transitions, 1893 flow [2022-11-20 10:30:37,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1005.3333333333334) internal successors, (3016), 3 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,046 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:37,046 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:37,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:30:37,047 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:37,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1647028344, now seen corresponding path program 1 times [2022-11-20 10:30:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:37,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057813040] [2022-11-20 10:30:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:37,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057813040] [2022-11-20 10:30:37,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057813040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:37,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:37,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:37,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996875062] [2022-11-20 10:30:37,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:37,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:37,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:37,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1001 out of 1055 [2022-11-20 10:30:37,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 932 places, 940 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:37,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:37,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1001 of 1055 [2022-11-20 10:30:37,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:30:38,368 INFO L130 PetriNetUnfolder]: 191/3573 cut-off events. [2022-11-20 10:30:38,368 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 10:30:38,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3895 conditions, 3573 events. 191/3573 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 25549 event pairs, 132 based on Foata normal form. 0/3047 useless extension candidates. Maximal degree in co-relation 3849. Up to 256 conditions per place. [2022-11-20 10:30:38,474 INFO L137 encePairwiseOnDemand]: 1052/1055 looper letters, 21 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2022-11-20 10:30:38,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 933 places, 939 transitions, 1937 flow [2022-11-20 10:30:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:30:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:30:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3027 transitions. [2022-11-20 10:30:38,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9563981042654028 [2022-11-20 10:30:38,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3027 transitions. [2022-11-20 10:30:38,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3027 transitions. [2022-11-20 10:30:38,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:30:38,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3027 transitions. [2022-11-20 10:30:38,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1055.0) internal successors, (4220), 4 states have internal predecessors, (4220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,494 INFO L175 Difference]: Start difference. First operand has 932 places, 940 transitions, 1893 flow. Second operand 3 states and 3027 transitions. [2022-11-20 10:30:38,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 933 places, 939 transitions, 1937 flow [2022-11-20 10:30:38,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 931 places, 939 transitions, 1933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:30:38,514 INFO L231 Difference]: Finished difference. Result has 931 places, 939 transitions, 1891 flow [2022-11-20 10:30:38,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1055, PETRI_DIFFERENCE_MINUEND_FLOW=1887, PETRI_DIFFERENCE_MINUEND_PLACES=929, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=939, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=937, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1891, PETRI_PLACES=931, PETRI_TRANSITIONS=939} [2022-11-20 10:30:38,515 INFO L288 CegarLoopForPetriNet]: 991 programPoint places, -60 predicate places. [2022-11-20 10:30:38,515 INFO L495 AbstractCegarLoop]: Abstraction has has 931 places, 939 transitions, 1891 flow [2022-11-20 10:30:38,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:38,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:38,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:38,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:30:38,517 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-20 10:30:38,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:38,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1007070656, now seen corresponding path program 1 times [2022-11-20 10:30:38,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:38,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227284223] [2022-11-20 10:30:38,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:38,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:39,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:39,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227284223] [2022-11-20 10:30:39,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227284223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:39,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:39,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:30:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168581275] [2022-11-20 10:30:39,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:39,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:30:39,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:39,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:30:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:30:39,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 851 out of 1055 [2022-11-20 10:30:39,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 939 transitions, 1891 flow. Second operand has 6 states, 6 states have (on average 852.8333333333334) internal successors, (5117), 6 states have internal predecessors, (5117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:39,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:39,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 851 of 1055 [2022-11-20 10:30:39,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand