./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a --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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- 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-b5237d8 [2022-11-21 16:18:27,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:18:27,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:18:27,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:18:27,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:18:27,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:18:27,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:18:27,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:18:27,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:18:27,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:18:27,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:18:27,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:18:27,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:18:27,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:18:27,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:18:27,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:18:27,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:18:27,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:18:27,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:18:27,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:18:27,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:18:27,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:18:27,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:18:27,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:18:27,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:18:27,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:18:27,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:18:27,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:18:27,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:18:27,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:18:27,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:18:27,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:18:27,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:18:27,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:18:27,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:18:27,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:18:27,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:18:27,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:18:27,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:18:27,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:18:27,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:18:27,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:18:27,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:18:27,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:18:27,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:18:27,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:18:27,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:18:27,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:18:27,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:18:27,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:18:27,732 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:18:27,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:18:27,732 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:18:27,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:18:27,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:18:27,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:18:27,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:18:27,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:18:27,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:18:27,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:18:27,734 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:18:27,734 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:18:27,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:18:27,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:18:27,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:18:27,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:18:27,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:18:27,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:18:27,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:18:27,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:18:27,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:18:27,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:18:27,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:18:27,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:18:27,737 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:18:27,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:18:27,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:18:27,738 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_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-21 16:18:28,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:18:28,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:18:28,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:18:28,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:18:28,064 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:18:28,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-21 16:18:31,242 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:18:31,544 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:18:31,545 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-21 16:18:31,565 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/data/c50aa3648/93e08062a30e4b3a81d18308fe6dabd6/FLAG01bd3b4d7 [2022-11-21 16:18:31,581 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/data/c50aa3648/93e08062a30e4b3a81d18308fe6dabd6 [2022-11-21 16:18:31,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:18:31,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:18:31,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:18:31,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:18:31,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:18:31,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:18:31" (1/1) ... [2022-11-21 16:18:31,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd8867c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:31, skipping insertion in model container [2022-11-21 16:18:31,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:18:31" (1/1) ... [2022-11-21 16:18:31,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:18:31,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:18:32,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:18:32,284 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:18:32,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:18:32,474 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:18:32,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32 WrapperNode [2022-11-21 16:18:32,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:18:32,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:18:32,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:18:32,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:18:32,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,550 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2022-11-21 16:18:32,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:18:32,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:18:32,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:18:32,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:18:32,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:18:32,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:18:32,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:18:32,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:18:32,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (1/1) ... [2022-11-21 16:18:32,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:18:32,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:18:32,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:18:32,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83619d44-488b-4cc9-bc21-0c9137d7f631/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:18:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:18:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:18:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:18:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:18:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:18:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:18:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:18:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:18:32,733 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:18:32,881 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:18:32,883 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:18:33,439 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:18:33,451 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:18:33,451 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:18:33,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:18:33 BoogieIcfgContainer [2022-11-21 16:18:33,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:18:33,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:18:33,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:18:33,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:18:33,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:18:31" (1/3) ... [2022-11-21 16:18:33,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de550e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:18:33, skipping insertion in model container [2022-11-21 16:18:33,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:18:32" (2/3) ... [2022-11-21 16:18:33,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de550e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:18:33, skipping insertion in model container [2022-11-21 16:18:33,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:18:33" (3/3) ... [2022-11-21 16:18:33,473 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-21 16:18:33,485 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:18:33,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:18:33,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-21 16:18:33,497 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:18:33,628 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:18:33,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 204 transitions, 413 flow [2022-11-21 16:18:33,755 INFO L130 PetriNetUnfolder]: 0/203 cut-off events. [2022-11-21 16:18:33,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:18:33,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-21 16:18:33,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 204 transitions, 413 flow [2022-11-21 16:18:33,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 203 transitions, 409 flow [2022-11-21 16:18:33,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:18:33,799 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;@4342fe67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:18:33,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-21 16:18:33,817 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-21 16:18:33,817 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:18:33,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:33,818 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] [2022-11-21 16:18:33,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:33,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1854556741, now seen corresponding path program 1 times [2022-11-21 16:18:33,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:33,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548245015] [2022-11-21 16:18:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:34,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:34,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548245015] [2022-11-21 16:18:34,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548245015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:34,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:34,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:18:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416362157] [2022-11-21 16:18:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:34,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:18:34,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:18:34,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:18:34,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 204 [2022-11-21 16:18:34,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 203 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:34,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:34,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 204 [2022-11-21 16:18:34,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:35,516 INFO L130 PetriNetUnfolder]: 360/1266 cut-off events. [2022-11-21 16:18:35,516 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:18:35,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2074 conditions, 1266 events. 360/1266 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6589 event pairs, 360 based on Foata normal form. 0/1094 useless extension candidates. Maximal degree in co-relation 1926. Up to 794 conditions per place. [2022-11-21 16:18:35,535 INFO L137 encePairwiseOnDemand]: 192/204 looper letters, 73 selfloop transitions, 10 changer transitions 0/201 dead transitions. [2022-11-21 16:18:35,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 201 transitions, 571 flow [2022-11-21 16:18:35,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:18:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:18:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 799 transitions. [2022-11-21 16:18:35,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2022-11-21 16:18:35,564 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 799 transitions. [2022-11-21 16:18:35,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 799 transitions. [2022-11-21 16:18:35,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:35,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 799 transitions. [2022-11-21 16:18:35,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.16666666666666) internal successors, (799), 6 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:35,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:35,585 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:35,587 INFO L175 Difference]: Start difference. First operand has 207 places, 203 transitions, 409 flow. Second operand 6 states and 799 transitions. [2022-11-21 16:18:35,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 201 transitions, 571 flow [2022-11-21 16:18:35,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 201 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:18:35,598 INFO L231 Difference]: Finished difference. Result has 209 places, 201 transitions, 424 flow [2022-11-21 16:18:35,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=424, PETRI_PLACES=209, PETRI_TRANSITIONS=201} [2022-11-21 16:18:35,605 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 2 predicate places. [2022-11-21 16:18:35,605 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 201 transitions, 424 flow [2022-11-21 16:18:35,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:35,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:35,607 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] [2022-11-21 16:18:35,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:18:35,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:35,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:35,609 INFO L85 PathProgramCache]: Analyzing trace with hash 632162598, now seen corresponding path program 1 times [2022-11-21 16:18:35,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:35,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358456169] [2022-11-21 16:18:35,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:35,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:36,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:36,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358456169] [2022-11-21 16:18:36,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358456169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:36,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:36,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:18:36,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40480432] [2022-11-21 16:18:36,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:36,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:18:36,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:36,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:18:36,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:18:36,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 204 [2022-11-21 16:18:36,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 201 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:36,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 204 [2022-11-21 16:18:36,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:36,623 INFO L130 PetriNetUnfolder]: 360/1264 cut-off events. [2022-11-21 16:18:36,623 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:18:36,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2080 conditions, 1264 events. 360/1264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6569 event pairs, 360 based on Foata normal form. 0/1094 useless extension candidates. Maximal degree in co-relation 1968. Up to 792 conditions per place. [2022-11-21 16:18:36,631 INFO L137 encePairwiseOnDemand]: 192/204 looper letters, 71 selfloop transitions, 10 changer transitions 0/199 dead transitions. [2022-11-21 16:18:36,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 199 transitions, 582 flow [2022-11-21 16:18:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:18:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:18:36,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2022-11-21 16:18:36,635 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6511437908496732 [2022-11-21 16:18:36,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 797 transitions. [2022-11-21 16:18:36,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 797 transitions. [2022-11-21 16:18:36,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:36,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 797 transitions. [2022-11-21 16:18:36,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,642 INFO L175 Difference]: Start difference. First operand has 209 places, 201 transitions, 424 flow. Second operand 6 states and 797 transitions. [2022-11-21 16:18:36,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 199 transitions, 582 flow [2022-11-21 16:18:36,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 199 transitions, 562 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:18:36,653 INFO L231 Difference]: Finished difference. Result has 207 places, 199 transitions, 420 flow [2022-11-21 16:18:36,653 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=207, PETRI_TRANSITIONS=199} [2022-11-21 16:18:36,654 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2022-11-21 16:18:36,655 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 199 transitions, 420 flow [2022-11-21 16:18:36,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,655 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:36,656 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] [2022-11-21 16:18:36,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:18:36,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:36,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash -234681239, now seen corresponding path program 1 times [2022-11-21 16:18:36,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:36,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991649772] [2022-11-21 16:18:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:36,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:36,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:36,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991649772] [2022-11-21 16:18:36,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991649772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:36,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:36,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:18:36,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670786963] [2022-11-21 16:18:36,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:36,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:18:36,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:36,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:18:36,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:18:36,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 204 [2022-11-21 16:18:36,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 199 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:36,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 204 [2022-11-21 16:18:36,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:36,795 INFO L130 PetriNetUnfolder]: 18/349 cut-off events. [2022-11-21 16:18:36,795 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:18:36,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 349 events. 18/349 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 798 event pairs, 18 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 318. Up to 56 conditions per place. [2022-11-21 16:18:36,797 INFO L137 encePairwiseOnDemand]: 201/204 looper letters, 19 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2022-11-21 16:18:36,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 198 transitions, 460 flow [2022-11-21 16:18:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:18:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:18:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2022-11-21 16:18:36,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9281045751633987 [2022-11-21 16:18:36,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2022-11-21 16:18:36,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2022-11-21 16:18:36,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:36,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2022-11-21 16:18:36,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,804 INFO L175 Difference]: Start difference. First operand has 207 places, 199 transitions, 420 flow. Second operand 3 states and 568 transitions. [2022-11-21 16:18:36,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 198 transitions, 460 flow [2022-11-21 16:18:36,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 198 transitions, 440 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:18:36,809 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 402 flow [2022-11-21 16:18:36,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-21 16:18:36,810 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -4 predicate places. [2022-11-21 16:18:36,810 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 402 flow [2022-11-21 16:18:36,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:36,812 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:36,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:18:36,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash -403060252, now seen corresponding path program 1 times [2022-11-21 16:18:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:36,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747713874] [2022-11-21 16:18:36,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:36,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:36,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:36,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747713874] [2022-11-21 16:18:36,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747713874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:36,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:36,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:18:36,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463879971] [2022-11-21 16:18:36,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:36,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:18:36,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:18:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:18:36,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 204 [2022-11-21 16:18:36,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:36,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 204 [2022-11-21 16:18:36,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:36,964 INFO L130 PetriNetUnfolder]: 8/294 cut-off events. [2022-11-21 16:18:36,964 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:18:36,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 294 events. 8/294 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 485 event pairs, 8 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 265. Up to 27 conditions per place. [2022-11-21 16:18:36,966 INFO L137 encePairwiseOnDemand]: 198/204 looper letters, 12 selfloop transitions, 1 changer transitions 0/193 dead transitions. [2022-11-21 16:18:36,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 193 transitions, 418 flow [2022-11-21 16:18:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:18:36,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:18:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2022-11-21 16:18:36,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9362745098039216 [2022-11-21 16:18:36,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2022-11-21 16:18:36,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2022-11-21 16:18:36,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:36,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2022-11-21 16:18:36,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,974 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 402 flow. Second operand 3 states and 573 transitions. [2022-11-21 16:18:36,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 193 transitions, 418 flow [2022-11-21 16:18:36,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 193 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:18:36,978 INFO L231 Difference]: Finished difference. Result has 198 places, 193 transitions, 390 flow [2022-11-21 16:18:36,978 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=198, PETRI_TRANSITIONS=193} [2022-11-21 16:18:36,979 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -9 predicate places. [2022-11-21 16:18:36,980 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 193 transitions, 390 flow [2022-11-21 16:18:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:36,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:36,981 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] [2022-11-21 16:18:36,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:18:36,981 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:36,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:36,982 INFO L85 PathProgramCache]: Analyzing trace with hash -427674647, now seen corresponding path program 1 times [2022-11-21 16:18:36,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:36,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27118067] [2022-11-21 16:18:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:36,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:37,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:37,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27118067] [2022-11-21 16:18:37,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27118067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:37,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:37,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:18:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677355511] [2022-11-21 16:18:37,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:37,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:18:37,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:37,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:18:37,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:18:37,609 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 204 [2022-11-21 16:18:37,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 193 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:37,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:37,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 204 [2022-11-21 16:18:37,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:37,977 INFO L130 PetriNetUnfolder]: 416/1342 cut-off events. [2022-11-21 16:18:37,977 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:18:37,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 1342 events. 416/1342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6878 event pairs, 416 based on Foata normal form. 0/1193 useless extension candidates. Maximal degree in co-relation 2182. Up to 906 conditions per place. [2022-11-21 16:18:37,984 INFO L137 encePairwiseOnDemand]: 198/204 looper letters, 73 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2022-11-21 16:18:37,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 192 transitions, 544 flow [2022-11-21 16:18:37,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:18:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:18:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 805 transitions. [2022-11-21 16:18:37,988 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6576797385620915 [2022-11-21 16:18:37,988 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 805 transitions. [2022-11-21 16:18:37,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 805 transitions. [2022-11-21 16:18:37,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:37,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 805 transitions. [2022-11-21 16:18:37,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:37,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:37,994 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:37,994 INFO L175 Difference]: Start difference. First operand has 198 places, 193 transitions, 390 flow. Second operand 6 states and 805 transitions. [2022-11-21 16:18:37,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 192 transitions, 544 flow [2022-11-21 16:18:37,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 192 transitions, 543 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:18:37,999 INFO L231 Difference]: Finished difference. Result has 201 places, 192 transitions, 397 flow [2022-11-21 16:18:37,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=201, PETRI_TRANSITIONS=192} [2022-11-21 16:18:38,000 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -6 predicate places. [2022-11-21 16:18:38,000 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 192 transitions, 397 flow [2022-11-21 16:18:38,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:38,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:38,001 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:38,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:18:38,002 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:38,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:38,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1404598118, now seen corresponding path program 1 times [2022-11-21 16:18:38,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:38,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894626253] [2022-11-21 16:18:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:38,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:38,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:38,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894626253] [2022-11-21 16:18:38,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894626253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:38,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:38,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:18:38,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302933533] [2022-11-21 16:18:38,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:18:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:18:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:18:38,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 204 [2022-11-21 16:18:38,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 192 transitions, 397 flow. Second operand has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:38,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:38,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 204 [2022-11-21 16:18:38,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:39,595 INFO L130 PetriNetUnfolder]: 748/2357 cut-off events. [2022-11-21 16:18:39,595 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:18:39,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3990 conditions, 2357 events. 748/2357 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 14748 event pairs, 64 based on Foata normal form. 0/2104 useless extension candidates. Maximal degree in co-relation 3915. Up to 781 conditions per place. [2022-11-21 16:18:39,609 INFO L137 encePairwiseOnDemand]: 176/204 looper letters, 161 selfloop transitions, 70 changer transitions 0/348 dead transitions. [2022-11-21 16:18:39,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 348 transitions, 1171 flow [2022-11-21 16:18:39,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:18:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:18:39,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2022-11-21 16:18:39,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.798202614379085 [2022-11-21 16:18:39,613 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 977 transitions. [2022-11-21 16:18:39,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 977 transitions. [2022-11-21 16:18:39,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:39,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 977 transitions. [2022-11-21 16:18:39,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:39,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:39,620 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:39,621 INFO L175 Difference]: Start difference. First operand has 201 places, 192 transitions, 397 flow. Second operand 6 states and 977 transitions. [2022-11-21 16:18:39,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 348 transitions, 1171 flow [2022-11-21 16:18:39,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 348 transitions, 1161 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:18:39,630 INFO L231 Difference]: Finished difference. Result has 205 places, 262 transitions, 865 flow [2022-11-21 16:18:39,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=865, PETRI_PLACES=205, PETRI_TRANSITIONS=262} [2022-11-21 16:18:39,634 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -2 predicate places. [2022-11-21 16:18:39,634 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 262 transitions, 865 flow [2022-11-21 16:18:39,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:39,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:39,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:39,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:18:39,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1990532375, now seen corresponding path program 1 times [2022-11-21 16:18:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:39,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900944352] [2022-11-21 16:18:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:40,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:40,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900944352] [2022-11-21 16:18:40,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900944352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:40,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:40,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:18:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415245713] [2022-11-21 16:18:40,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:40,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:18:40,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:40,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:18:40,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:18:40,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 204 [2022-11-21 16:18:40,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 262 transitions, 865 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:40,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:40,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 204 [2022-11-21 16:18:40,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:41,138 INFO L130 PetriNetUnfolder]: 836/2664 cut-off events. [2022-11-21 16:18:41,139 INFO L131 PetriNetUnfolder]: For 876/876 co-relation queries the response was YES. [2022-11-21 16:18:41,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5897 conditions, 2664 events. 836/2664 cut-off events. For 876/876 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17157 event pairs, 379 based on Foata normal form. 0/2480 useless extension candidates. Maximal degree in co-relation 5820. Up to 1690 conditions per place. [2022-11-21 16:18:41,157 INFO L137 encePairwiseOnDemand]: 189/204 looper letters, 156 selfloop transitions, 48 changer transitions 0/322 dead transitions. [2022-11-21 16:18:41,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 322 transitions, 1489 flow [2022-11-21 16:18:41,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:18:41,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:18:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2022-11-21 16:18:41,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7165032679738562 [2022-11-21 16:18:41,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 877 transitions. [2022-11-21 16:18:41,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 877 transitions. [2022-11-21 16:18:41,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:41,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 877 transitions. [2022-11-21 16:18:41,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.16666666666666) internal successors, (877), 6 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:41,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:41,167 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:41,168 INFO L175 Difference]: Start difference. First operand has 205 places, 262 transitions, 865 flow. Second operand 6 states and 877 transitions. [2022-11-21 16:18:41,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 322 transitions, 1489 flow [2022-11-21 16:18:41,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 322 transitions, 1489 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:18:41,180 INFO L231 Difference]: Finished difference. Result has 215 places, 305 transitions, 1253 flow [2022-11-21 16:18:41,180 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1253, PETRI_PLACES=215, PETRI_TRANSITIONS=305} [2022-11-21 16:18:41,181 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 8 predicate places. [2022-11-21 16:18:41,181 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 305 transitions, 1253 flow [2022-11-21 16:18:41,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:41,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:41,182 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] [2022-11-21 16:18:41,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:18:41,183 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:41,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:41,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1198534900, now seen corresponding path program 1 times [2022-11-21 16:18:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:41,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467989889] [2022-11-21 16:18:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:41,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:41,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:41,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467989889] [2022-11-21 16:18:41,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467989889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:41,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:41,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:18:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938750957] [2022-11-21 16:18:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:41,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:18:41,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:18:41,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:18:41,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 204 [2022-11-21 16:18:41,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 305 transitions, 1253 flow. Second operand has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:41,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:41,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 204 [2022-11-21 16:18:41,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:42,932 INFO L130 PetriNetUnfolder]: 1029/3395 cut-off events. [2022-11-21 16:18:42,932 INFO L131 PetriNetUnfolder]: For 2078/2142 co-relation queries the response was YES. [2022-11-21 16:18:42,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8409 conditions, 3395 events. 1029/3395 cut-off events. For 2078/2142 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24213 event pairs, 200 based on Foata normal form. 0/3265 useless extension candidates. Maximal degree in co-relation 8324. Up to 1659 conditions per place. [2022-11-21 16:18:42,961 INFO L137 encePairwiseOnDemand]: 182/204 looper letters, 262 selfloop transitions, 135 changer transitions 4/520 dead transitions. [2022-11-21 16:18:42,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 520 transitions, 3147 flow [2022-11-21 16:18:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:18:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:18:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 944 transitions. [2022-11-21 16:18:42,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7712418300653595 [2022-11-21 16:18:42,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 944 transitions. [2022-11-21 16:18:42,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 944 transitions. [2022-11-21 16:18:42,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:42,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 944 transitions. [2022-11-21 16:18:42,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 157.33333333333334) internal successors, (944), 6 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:42,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:42,971 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:42,971 INFO L175 Difference]: Start difference. First operand has 215 places, 305 transitions, 1253 flow. Second operand 6 states and 944 transitions. [2022-11-21 16:18:42,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 520 transitions, 3147 flow [2022-11-21 16:18:42,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 520 transitions, 3129 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-21 16:18:42,997 INFO L231 Difference]: Finished difference. Result has 225 places, 435 transitions, 2593 flow [2022-11-21 16:18:42,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=1235, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2593, PETRI_PLACES=225, PETRI_TRANSITIONS=435} [2022-11-21 16:18:43,001 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 18 predicate places. [2022-11-21 16:18:43,001 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 435 transitions, 2593 flow [2022-11-21 16:18:43,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:43,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:43,002 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] [2022-11-21 16:18:43,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:18:43,003 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:43,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1115363597, now seen corresponding path program 1 times [2022-11-21 16:18:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:43,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246262963] [2022-11-21 16:18:43,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:44,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:44,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246262963] [2022-11-21 16:18:44,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246262963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:44,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:44,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:18:44,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650648920] [2022-11-21 16:18:44,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:44,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:18:44,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:44,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:18:44,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:18:44,080 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:18:44,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 435 transitions, 2593 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:44,082 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:44,082 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:18:44,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:47,104 INFO L130 PetriNetUnfolder]: 1672/5518 cut-off events. [2022-11-21 16:18:47,104 INFO L131 PetriNetUnfolder]: For 6152/6241 co-relation queries the response was YES. [2022-11-21 16:18:47,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15806 conditions, 5518 events. 1672/5518 cut-off events. For 6152/6241 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 45395 event pairs, 286 based on Foata normal form. 26/5398 useless extension candidates. Maximal degree in co-relation 15710. Up to 1193 conditions per place. [2022-11-21 16:18:47,241 INFO L137 encePairwiseOnDemand]: 167/204 looper letters, 619 selfloop transitions, 192 changer transitions 6/918 dead transitions. [2022-11-21 16:18:47,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 918 transitions, 7275 flow [2022-11-21 16:18:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:18:47,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:18:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2589 transitions. [2022-11-21 16:18:47,249 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6345588235294117 [2022-11-21 16:18:47,251 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2589 transitions. [2022-11-21 16:18:47,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2589 transitions. [2022-11-21 16:18:47,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:47,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2589 transitions. [2022-11-21 16:18:47,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.45) internal successors, (2589), 20 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:47,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 204.0) internal successors, (4284), 21 states have internal predecessors, (4284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:47,269 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 204.0) internal successors, (4284), 21 states have internal predecessors, (4284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:47,269 INFO L175 Difference]: Start difference. First operand has 225 places, 435 transitions, 2593 flow. Second operand 20 states and 2589 transitions. [2022-11-21 16:18:47,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 918 transitions, 7275 flow [2022-11-21 16:18:47,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 918 transitions, 7203 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-21 16:18:47,333 INFO L231 Difference]: Finished difference. Result has 260 places, 532 transitions, 4251 flow [2022-11-21 16:18:47,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=2557, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4251, PETRI_PLACES=260, PETRI_TRANSITIONS=532} [2022-11-21 16:18:47,336 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 53 predicate places. [2022-11-21 16:18:47,337 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 532 transitions, 4251 flow [2022-11-21 16:18:47,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:47,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:47,338 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] [2022-11-21 16:18:47,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:18:47,339 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:47,339 INFO L85 PathProgramCache]: Analyzing trace with hash -2128808489, now seen corresponding path program 2 times [2022-11-21 16:18:47,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:47,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502379920] [2022-11-21 16:18:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:47,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:48,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:48,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502379920] [2022-11-21 16:18:48,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502379920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:48,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:48,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:18:48,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911535440] [2022-11-21 16:18:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:48,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:18:48,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:18:48,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:18:48,261 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:18:48,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 532 transitions, 4251 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:48,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:48,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:18:48,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:52,011 INFO L130 PetriNetUnfolder]: 1848/6132 cut-off events. [2022-11-21 16:18:52,011 INFO L131 PetriNetUnfolder]: For 10467/10634 co-relation queries the response was YES. [2022-11-21 16:18:52,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19661 conditions, 6132 events. 1848/6132 cut-off events. For 10467/10634 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 51295 event pairs, 277 based on Foata normal form. 48/5988 useless extension candidates. Maximal degree in co-relation 19545. Up to 2087 conditions per place. [2022-11-21 16:18:52,077 INFO L137 encePairwiseOnDemand]: 178/204 looper letters, 721 selfloop transitions, 141 changer transitions 6/969 dead transitions. [2022-11-21 16:18:52,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 969 transitions, 8875 flow [2022-11-21 16:18:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 16:18:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-21 16:18:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3533 transitions. [2022-11-21 16:18:52,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5971940500338067 [2022-11-21 16:18:52,182 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3533 transitions. [2022-11-21 16:18:52,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3533 transitions. [2022-11-21 16:18:52,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:52,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3533 transitions. [2022-11-21 16:18:52,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 121.82758620689656) internal successors, (3533), 29 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:52,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 204.0) internal successors, (6120), 30 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:52,205 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 204.0) internal successors, (6120), 30 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:52,206 INFO L175 Difference]: Start difference. First operand has 260 places, 532 transitions, 4251 flow. Second operand 29 states and 3533 transitions. [2022-11-21 16:18:52,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 969 transitions, 8875 flow [2022-11-21 16:18:52,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 969 transitions, 8865 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-21 16:18:52,340 INFO L231 Difference]: Finished difference. Result has 294 places, 599 transitions, 5253 flow [2022-11-21 16:18:52,342 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=4241, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5253, PETRI_PLACES=294, PETRI_TRANSITIONS=599} [2022-11-21 16:18:52,343 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 87 predicate places. [2022-11-21 16:18:52,345 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 599 transitions, 5253 flow [2022-11-21 16:18:52,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:52,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:52,346 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] [2022-11-21 16:18:52,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:18:52,347 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:52,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:52,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1280765513, now seen corresponding path program 3 times [2022-11-21 16:18:52,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:52,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062619484] [2022-11-21 16:18:52,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:52,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:53,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:53,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062619484] [2022-11-21 16:18:53,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062619484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:53,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:53,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:18:53,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275310656] [2022-11-21 16:18:53,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:53,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:18:53,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:53,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:18:53,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:18:53,253 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:18:53,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 599 transitions, 5253 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:53,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:53,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:18:53,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:57,727 INFO L130 PetriNetUnfolder]: 2605/8740 cut-off events. [2022-11-21 16:18:57,727 INFO L131 PetriNetUnfolder]: For 21234/21393 co-relation queries the response was YES. [2022-11-21 16:18:57,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30095 conditions, 8740 events. 2605/8740 cut-off events. For 21234/21393 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 81955 event pairs, 436 based on Foata normal form. 60/8562 useless extension candidates. Maximal degree in co-relation 29969. Up to 1724 conditions per place. [2022-11-21 16:18:57,823 INFO L137 encePairwiseOnDemand]: 171/204 looper letters, 769 selfloop transitions, 305 changer transitions 6/1181 dead transitions. [2022-11-21 16:18:57,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1181 transitions, 12031 flow [2022-11-21 16:18:57,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:18:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-21 16:18:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3712 transitions. [2022-11-21 16:18:57,832 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6065359477124183 [2022-11-21 16:18:57,832 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3712 transitions. [2022-11-21 16:18:57,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3712 transitions. [2022-11-21 16:18:57,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:57,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3712 transitions. [2022-11-21 16:18:57,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 123.73333333333333) internal successors, (3712), 30 states have internal predecessors, (3712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:57,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 204.0) internal successors, (6324), 31 states have internal predecessors, (6324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:57,872 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 204.0) internal successors, (6324), 31 states have internal predecessors, (6324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:57,872 INFO L175 Difference]: Start difference. First operand has 294 places, 599 transitions, 5253 flow. Second operand 30 states and 3712 transitions. [2022-11-21 16:18:57,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1181 transitions, 12031 flow [2022-11-21 16:18:58,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1181 transitions, 11951 flow, removed 38 selfloop flow, removed 2 redundant places. [2022-11-21 16:18:58,077 INFO L231 Difference]: Finished difference. Result has 338 places, 736 transitions, 8330 flow [2022-11-21 16:18:58,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=5203, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8330, PETRI_PLACES=338, PETRI_TRANSITIONS=736} [2022-11-21 16:18:58,078 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 131 predicate places. [2022-11-21 16:18:58,079 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 736 transitions, 8330 flow [2022-11-21 16:18:58,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:58,079 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:58,079 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] [2022-11-21 16:18:58,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:18:58,080 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:18:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:58,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1551796825, now seen corresponding path program 4 times [2022-11-21 16:18:58,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:58,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204152461] [2022-11-21 16:18:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:58,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:59,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:59,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204152461] [2022-11-21 16:18:59,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204152461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:59,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:59,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:18:59,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546671719] [2022-11-21 16:18:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:59,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:18:59,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:59,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:18:59,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:18:59,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:18:59,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 736 transitions, 8330 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:18:59,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:59,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:18:59,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:04,265 INFO L130 PetriNetUnfolder]: 3364/11450 cut-off events. [2022-11-21 16:19:04,265 INFO L131 PetriNetUnfolder]: For 40864/41085 co-relation queries the response was YES. [2022-11-21 16:19:04,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42227 conditions, 11450 events. 3364/11450 cut-off events. For 40864/41085 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 115702 event pairs, 679 based on Foata normal form. 109/11260 useless extension candidates. Maximal degree in co-relation 42142. Up to 2536 conditions per place. [2022-11-21 16:19:04,425 INFO L137 encePairwiseOnDemand]: 167/204 looper letters, 761 selfloop transitions, 372 changer transitions 6/1240 dead transitions. [2022-11-21 16:19:04,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1240 transitions, 15078 flow [2022-11-21 16:19:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 16:19:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 16:19:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2701 transitions. [2022-11-21 16:19:04,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.630485527544351 [2022-11-21 16:19:04,434 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2701 transitions. [2022-11-21 16:19:04,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2701 transitions. [2022-11-21 16:19:04,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:04,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2701 transitions. [2022-11-21 16:19:04,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 128.61904761904762) internal successors, (2701), 21 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:04,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:04,454 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:04,455 INFO L175 Difference]: Start difference. First operand has 338 places, 736 transitions, 8330 flow. Second operand 21 states and 2701 transitions. [2022-11-21 16:19:04,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1240 transitions, 15078 flow [2022-11-21 16:19:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 1240 transitions, 14919 flow, removed 48 selfloop flow, removed 10 redundant places. [2022-11-21 16:19:04,924 INFO L231 Difference]: Finished difference. Result has 364 places, 857 transitions, 11777 flow [2022-11-21 16:19:04,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=8212, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=11777, PETRI_PLACES=364, PETRI_TRANSITIONS=857} [2022-11-21 16:19:04,926 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 157 predicate places. [2022-11-21 16:19:04,927 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 857 transitions, 11777 flow [2022-11-21 16:19:04,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:04,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:04,928 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] [2022-11-21 16:19:04,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:19:04,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:19:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1947868536, now seen corresponding path program 1 times [2022-11-21 16:19:04,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:04,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073850259] [2022-11-21 16:19:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:04,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:05,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:05,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:05,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073850259] [2022-11-21 16:19:05,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073850259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:05,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:05,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:19:05,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414136902] [2022-11-21 16:19:05,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:05,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:19:05,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:05,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:19:05,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:19:05,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 204 [2022-11-21 16:19:05,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 857 transitions, 11777 flow. Second operand has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:05,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:05,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 204 [2022-11-21 16:19:05,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:11,054 INFO L130 PetriNetUnfolder]: 3491/11581 cut-off events. [2022-11-21 16:19:11,054 INFO L131 PetriNetUnfolder]: For 57823/58017 co-relation queries the response was YES. [2022-11-21 16:19:11,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45995 conditions, 11581 events. 3491/11581 cut-off events. For 57823/58017 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 116302 event pairs, 688 based on Foata normal form. 70/11321 useless extension candidates. Maximal degree in co-relation 45892. Up to 5567 conditions per place. [2022-11-21 16:19:11,206 INFO L137 encePairwiseOnDemand]: 184/204 looper letters, 768 selfloop transitions, 247 changer transitions 2/1115 dead transitions. [2022-11-21 16:19:11,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1115 transitions, 16647 flow [2022-11-21 16:19:11,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-21 16:19:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-21 16:19:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2822 transitions. [2022-11-21 16:19:11,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5763888888888888 [2022-11-21 16:19:11,214 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2822 transitions. [2022-11-21 16:19:11,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2822 transitions. [2022-11-21 16:19:11,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:11,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2822 transitions. [2022-11-21 16:19:11,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 117.58333333333333) internal successors, (2822), 24 states have internal predecessors, (2822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:11,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 204.0) internal successors, (5100), 25 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:11,233 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 204.0) internal successors, (5100), 25 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:11,234 INFO L175 Difference]: Start difference. First operand has 364 places, 857 transitions, 11777 flow. Second operand 24 states and 2822 transitions. [2022-11-21 16:19:11,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1115 transitions, 16647 flow [2022-11-21 16:19:11,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1115 transitions, 16561 flow, removed 27 selfloop flow, removed 3 redundant places. [2022-11-21 16:19:11,912 INFO L231 Difference]: Finished difference. Result has 389 places, 908 transitions, 13032 flow [2022-11-21 16:19:11,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=11716, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=13032, PETRI_PLACES=389, PETRI_TRANSITIONS=908} [2022-11-21 16:19:11,915 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 182 predicate places. [2022-11-21 16:19:11,915 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 908 transitions, 13032 flow [2022-11-21 16:19:11,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:11,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:11,916 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] [2022-11-21 16:19:11,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:19:11,916 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:19:11,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:11,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1117587451, now seen corresponding path program 5 times [2022-11-21 16:19:11,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:11,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949221844] [2022-11-21 16:19:11,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:11,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:12,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:12,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949221844] [2022-11-21 16:19:12,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949221844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:12,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:12,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:19:12,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574441151] [2022-11-21 16:19:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:12,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:19:12,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:12,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:19:12,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:19:12,785 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:19:12,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 908 transitions, 13032 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:12,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:12,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:19:12,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:19,441 INFO L130 PetriNetUnfolder]: 3819/13032 cut-off events. [2022-11-21 16:19:19,441 INFO L131 PetriNetUnfolder]: For 77543/77910 co-relation queries the response was YES. [2022-11-21 16:19:19,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54788 conditions, 13032 events. 3819/13032 cut-off events. For 77543/77910 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 136559 event pairs, 701 based on Foata normal form. 136/12837 useless extension candidates. Maximal degree in co-relation 54683. Up to 2536 conditions per place. [2022-11-21 16:19:19,619 INFO L137 encePairwiseOnDemand]: 171/204 looper letters, 866 selfloop transitions, 469 changer transitions 6/1445 dead transitions. [2022-11-21 16:19:19,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1445 transitions, 20998 flow [2022-11-21 16:19:19,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 16:19:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-21 16:19:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3825 transitions. [2022-11-21 16:19:19,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2022-11-21 16:19:19,626 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3825 transitions. [2022-11-21 16:19:19,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3825 transitions. [2022-11-21 16:19:19,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:19,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3825 transitions. [2022-11-21 16:19:19,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 123.38709677419355) internal successors, (3825), 31 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:19,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 204.0) internal successors, (6528), 32 states have internal predecessors, (6528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:19,647 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 204.0) internal successors, (6528), 32 states have internal predecessors, (6528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:19,647 INFO L175 Difference]: Start difference. First operand has 389 places, 908 transitions, 13032 flow. Second operand 31 states and 3825 transitions. [2022-11-21 16:19:19,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1445 transitions, 20998 flow [2022-11-21 16:19:20,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1445 transitions, 20810 flow, removed 17 selfloop flow, removed 12 redundant places. [2022-11-21 16:19:20,322 INFO L231 Difference]: Finished difference. Result has 420 places, 1003 transitions, 16818 flow [2022-11-21 16:19:20,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=12872, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=908, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=380, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=16818, PETRI_PLACES=420, PETRI_TRANSITIONS=1003} [2022-11-21 16:19:20,324 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 213 predicate places. [2022-11-21 16:19:20,324 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 1003 transitions, 16818 flow [2022-11-21 16:19:20,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:20,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:20,325 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] [2022-11-21 16:19:20,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:19:20,326 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:19:20,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2051305515, now seen corresponding path program 6 times [2022-11-21 16:19:20,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:20,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945669542] [2022-11-21 16:19:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:20,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:21,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:21,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945669542] [2022-11-21 16:19:21,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945669542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:21,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:21,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:19:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32369443] [2022-11-21 16:19:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:21,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:19:21,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:19:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:19:21,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:19:21,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1003 transitions, 16818 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:21,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:21,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:19:21,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:29,800 INFO L130 PetriNetUnfolder]: 5259/17983 cut-off events. [2022-11-21 16:19:29,800 INFO L131 PetriNetUnfolder]: For 132465/133017 co-relation queries the response was YES. [2022-11-21 16:19:30,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79034 conditions, 17983 events. 5259/17983 cut-off events. For 132465/133017 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 202440 event pairs, 1168 based on Foata normal form. 174/17714 useless extension candidates. Maximal degree in co-relation 78916. Up to 5308 conditions per place. [2022-11-21 16:19:30,105 INFO L137 encePairwiseOnDemand]: 172/204 looper letters, 776 selfloop transitions, 626 changer transitions 3/1509 dead transitions. [2022-11-21 16:19:30,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 1509 transitions, 27005 flow [2022-11-21 16:19:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 16:19:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 16:19:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2565 transitions. [2022-11-21 16:19:30,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5987394957983193 [2022-11-21 16:19:30,111 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2565 transitions. [2022-11-21 16:19:30,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2565 transitions. [2022-11-21 16:19:30,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:30,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2565 transitions. [2022-11-21 16:19:30,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 122.14285714285714) internal successors, (2565), 21 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:30,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:30,127 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:30,127 INFO L175 Difference]: Start difference. First operand has 420 places, 1003 transitions, 16818 flow. Second operand 21 states and 2565 transitions. [2022-11-21 16:19:30,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 1509 transitions, 27005 flow [2022-11-21 16:19:31,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1509 transitions, 26789 flow, removed 6 selfloop flow, removed 16 redundant places. [2022-11-21 16:19:31,849 INFO L231 Difference]: Finished difference. Result has 438 places, 1213 transitions, 23981 flow [2022-11-21 16:19:31,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=16678, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1003, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=23981, PETRI_PLACES=438, PETRI_TRANSITIONS=1213} [2022-11-21 16:19:31,851 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 231 predicate places. [2022-11-21 16:19:31,851 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 1213 transitions, 23981 flow [2022-11-21 16:19:31,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:31,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:31,852 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] [2022-11-21 16:19:31,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:19:31,852 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:19:31,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:31,853 INFO L85 PathProgramCache]: Analyzing trace with hash -815284599, now seen corresponding path program 7 times [2022-11-21 16:19:31,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:31,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919437742] [2022-11-21 16:19:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:31,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:32,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:32,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919437742] [2022-11-21 16:19:32,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919437742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:32,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:32,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:19:32,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494544070] [2022-11-21 16:19:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:32,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:19:32,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:32,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:19:32,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:19:32,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:19:32,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1213 transitions, 23981 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:32,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:32,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:19:32,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:19:46,500 INFO L130 PetriNetUnfolder]: 7337/25102 cut-off events. [2022-11-21 16:19:46,501 INFO L131 PetriNetUnfolder]: For 225577/226272 co-relation queries the response was YES. [2022-11-21 16:19:46,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114923 conditions, 25102 events. 7337/25102 cut-off events. For 225577/226272 co-relation queries the response was YES. Maximal size of possible extension queue 797. Compared 304308 event pairs, 1359 based on Foata normal form. 258/24767 useless extension candidates. Maximal degree in co-relation 114792. Up to 6023 conditions per place. [2022-11-21 16:19:47,025 INFO L137 encePairwiseOnDemand]: 171/204 looper letters, 980 selfloop transitions, 867 changer transitions 4/1955 dead transitions. [2022-11-21 16:19:47,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 1955 transitions, 39060 flow [2022-11-21 16:19:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-21 16:19:47,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-21 16:19:47,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3356 transitions. [2022-11-21 16:19:47,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6092955700798838 [2022-11-21 16:19:47,033 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3356 transitions. [2022-11-21 16:19:47,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3356 transitions. [2022-11-21 16:19:47,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:19:47,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3356 transitions. [2022-11-21 16:19:47,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 124.29629629629629) internal successors, (3356), 27 states have internal predecessors, (3356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:47,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 204.0) internal successors, (5712), 28 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:47,054 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 204.0) internal successors, (5712), 28 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:47,054 INFO L175 Difference]: Start difference. First operand has 438 places, 1213 transitions, 23981 flow. Second operand 27 states and 3356 transitions. [2022-11-21 16:19:47,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 1955 transitions, 39060 flow [2022-11-21 16:19:50,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1955 transitions, 38950 flow, removed 53 selfloop flow, removed 2 redundant places. [2022-11-21 16:19:50,501 INFO L231 Difference]: Finished difference. Result has 472 places, 1463 transitions, 34098 flow [2022-11-21 16:19:50,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=23917, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=622, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=34098, PETRI_PLACES=472, PETRI_TRANSITIONS=1463} [2022-11-21 16:19:50,502 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, 265 predicate places. [2022-11-21 16:19:50,502 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 1463 transitions, 34098 flow [2022-11-21 16:19:50,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:50,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:19:50,503 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] [2022-11-21 16:19:50,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:19:50,503 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-21 16:19:50,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:19:50,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1161624023, now seen corresponding path program 8 times [2022-11-21 16:19:50,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:19:50,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420973142] [2022-11-21 16:19:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:19:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:19:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:19:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:19:51,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:19:51,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420973142] [2022-11-21 16:19:51,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420973142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:19:51,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:19:51,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-21 16:19:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196462758] [2022-11-21 16:19:51,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:19:51,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-21 16:19:51,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:19:51,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-21 16:19:51,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:19:51,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 204 [2022-11-21 16:19:51,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1463 transitions, 34098 flow. Second operand has 13 states, 13 states have (on average 110.92307692307692) internal successors, (1442), 13 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:19:51,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:19:51,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 204 [2022-11-21 16:19:51,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:20:08,353 INFO L130 PetriNetUnfolder]: 8194/27964 cut-off events. [2022-11-21 16:20:08,354 INFO L131 PetriNetUnfolder]: For 319256/320231 co-relation queries the response was YES. [2022-11-21 16:20:08,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135610 conditions, 27964 events. 8194/27964 cut-off events. For 319256/320231 co-relation queries the response was YES. Maximal size of possible extension queue 897. Compared 345340 event pairs, 1499 based on Foata normal form. 323/27615 useless extension candidates. Maximal degree in co-relation 135465. Up to 6480 conditions per place. [2022-11-21 16:20:08,936 INFO L137 encePairwiseOnDemand]: 171/204 looper letters, 1080 selfloop transitions, 902 changer transitions 5/2091 dead transitions. [2022-11-21 16:20:08,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 2091 transitions, 46589 flow [2022-11-21 16:20:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:20:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-21 16:20:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3711 transitions. [2022-11-21 16:20:08,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6063725490196078 [2022-11-21 16:20:08,943 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3711 transitions. [2022-11-21 16:20:08,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3711 transitions. [2022-11-21 16:20:08,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:20:08,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3711 transitions. [2022-11-21 16:20:08,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 123.7) internal successors, (3711), 30 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:08,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 204.0) internal successors, (6324), 31 states have internal predecessors, (6324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:08,959 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 204.0) internal successors, (6324), 31 states have internal predecessors, (6324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:20:08,959 INFO L175 Difference]: Start difference. First operand has 472 places, 1463 transitions, 34098 flow. Second operand 30 states and 3711 transitions. [2022-11-21 16:20:08,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 2091 transitions, 46589 flow