./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:05:10,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:05:10,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:05:10,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:05:10,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:05:10,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:05:10,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:05:10,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:05:10,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:05:10,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:05:10,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:05:10,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:05:10,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:05:10,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:05:10,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:05:10,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:05:10,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:05:10,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:05:10,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:05:10,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:05:10,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:05:10,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:05:10,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:05:10,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:05:10,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:05:10,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:05:10,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:05:10,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:05:10,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:05:10,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:05:10,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:05:10,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:05:10,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:05:10,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:05:10,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:05:10,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:05:10,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:05:10,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:05:10,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:05:10,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:05:10,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:05:10,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:05:10,761 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:05:10,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:05:10,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:05:10,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:05:10,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:05:10,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:05:10,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:05:10,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:05:10,765 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:05:10,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:05:10,765 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:05:10,766 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:05:10,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:05:10,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:05:10,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:05:10,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:05:10,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:05:10,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:05:10,768 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:05:10,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:05:10,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:05:10,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:05:10,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:05:10,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:05:10,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:05:10,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:05:10,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:05:10,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:05:10,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:05:10,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:05:10,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:05:10,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:05:10,772 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:05:10,773 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:05:10,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:05:10,773 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_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2022-11-20 12:05:11,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:05:11,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:05:11,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:05:11,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:05:11,046 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:05:11,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-20 12:05:14,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:05:14,750 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:05:14,751 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-20 12:05:14,767 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/data/debc4d83c/ed3f8e88b13f4b269c435fefbbb33263/FLAG41e930003 [2022-11-20 12:05:14,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/data/debc4d83c/ed3f8e88b13f4b269c435fefbbb33263 [2022-11-20 12:05:14,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:05:14,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:05:14,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:05:14,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:05:14,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:05:14,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:14" (1/1) ... [2022-11-20 12:05:14,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4e083a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:14, skipping insertion in model container [2022-11-20 12:05:14,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:14" (1/1) ... [2022-11-20 12:05:14,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:05:14,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:05:15,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:05:15,591 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:05:15,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:05:15,780 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:05:15,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15 WrapperNode [2022-11-20 12:05:15,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:05:15,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:05:15,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:05:15,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:05:15,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,875 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-11-20 12:05:15,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:05:15,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:05:15,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:05:15,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:05:15,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,907 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:05:15,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:05:15,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:05:15,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:05:15,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (1/1) ... [2022-11-20 12:05:15,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:05:15,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:15,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:05:15,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:05:16,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:05:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:05:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:05:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:05:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:05:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:05:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:05:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:05:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:05:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:05:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:05:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:05:16,008 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:05:16,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:05:16,177 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:05:16,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:05:16,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:05:16,570 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:05:16,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:16 BoogieIcfgContainer [2022-11-20 12:05:16,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:05:16,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:05:16,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:05:16,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:05:16,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:05:14" (1/3) ... [2022-11-20 12:05:16,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e74c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:16, skipping insertion in model container [2022-11-20 12:05:16,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:15" (2/3) ... [2022-11-20 12:05:16,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e74c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:16, skipping insertion in model container [2022-11-20 12:05:16,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:16" (3/3) ... [2022-11-20 12:05:16,594 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2022-11-20 12:05:16,606 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:05:16,621 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:05:16,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-20 12:05:16,622 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:05:16,698 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:05:16,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 199 flow [2022-11-20 12:05:16,797 INFO L130 PetriNetUnfolder]: 0/96 cut-off events. [2022-11-20 12:05:16,798 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:05:16,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 12:05:16,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 199 flow [2022-11-20 12:05:16,808 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 96 transitions, 195 flow [2022-11-20 12:05:16,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:05:16,828 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;@5d0793ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:05:16,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-20 12:05:16,838 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-20 12:05:16,838 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:05:16,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:16,839 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] [2022-11-20 12:05:16,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:16,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:16,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1065705281, now seen corresponding path program 1 times [2022-11-20 12:05:16,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:16,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607480988] [2022-11-20 12:05:16,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:16,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:17,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:17,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607480988] [2022-11-20 12:05:17,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607480988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:17,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:17,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:05:17,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948260042] [2022-11-20 12:05:17,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:17,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:17,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:17,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:17,181 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 97 [2022-11-20 12:05:17,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 96 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:17,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 97 [2022-11-20 12:05:17,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:17,352 INFO L130 PetriNetUnfolder]: 18/272 cut-off events. [2022-11-20 12:05:17,360 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:05:17,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 272 events. 18/272 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1101 event pairs, 18 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 284. Up to 53 conditions per place. [2022-11-20 12:05:17,366 INFO L137 encePairwiseOnDemand]: 94/97 looper letters, 16 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2022-11-20 12:05:17,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 95 transitions, 229 flow [2022-11-20 12:05:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:05:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2022-11-20 12:05:17,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8694158075601375 [2022-11-20 12:05:17,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2022-11-20 12:05:17,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2022-11-20 12:05:17,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:17,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2022-11-20 12:05:17,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,410 INFO L175 Difference]: Start difference. First operand has 100 places, 96 transitions, 195 flow. Second operand 3 states and 253 transitions. [2022-11-20 12:05:17,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 95 transitions, 229 flow [2022-11-20 12:05:17,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 95 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:05:17,426 INFO L231 Difference]: Finished difference. Result has 100 places, 95 transitions, 196 flow [2022-11-20 12:05:17,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=100, PETRI_TRANSITIONS=95} [2022-11-20 12:05:17,435 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 0 predicate places. [2022-11-20 12:05:17,436 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 95 transitions, 196 flow [2022-11-20 12:05:17,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:17,438 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] [2022-11-20 12:05:17,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:05:17,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:17,441 INFO L85 PathProgramCache]: Analyzing trace with hash 866624769, now seen corresponding path program 1 times [2022-11-20 12:05:17,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766691106] [2022-11-20 12:05:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:17,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766691106] [2022-11-20 12:05:17,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766691106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:17,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:17,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:05:17,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345004057] [2022-11-20 12:05:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:17,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:17,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:17,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:17,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:17,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 97 [2022-11-20 12:05:17,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:17,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 97 [2022-11-20 12:05:17,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:17,676 INFO L130 PetriNetUnfolder]: 8/212 cut-off events. [2022-11-20 12:05:17,676 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:05:17,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 212 events. 8/212 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 702 event pairs, 8 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 214. Up to 25 conditions per place. [2022-11-20 12:05:17,678 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 10 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2022-11-20 12:05:17,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 210 flow [2022-11-20 12:05:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:05:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2022-11-20 12:05:17,681 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8865979381443299 [2022-11-20 12:05:17,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2022-11-20 12:05:17,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2022-11-20 12:05:17,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:17,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2022-11-20 12:05:17,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,685 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 196 flow. Second operand 3 states and 258 transitions. [2022-11-20 12:05:17,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 210 flow [2022-11-20 12:05:17,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 91 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:05:17,689 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 186 flow [2022-11-20 12:05:17,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2022-11-20 12:05:17,690 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -4 predicate places. [2022-11-20 12:05:17,691 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 186 flow [2022-11-20 12:05:17,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:17,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:17,692 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] [2022-11-20 12:05:17,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:05:17,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:17,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash -285435515, now seen corresponding path program 1 times [2022-11-20 12:05:17,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:17,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115439455] [2022-11-20 12:05:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:17,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:18,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:18,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115439455] [2022-11-20 12:05:18,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115439455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:18,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:18,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:05:18,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136092497] [2022-11-20 12:05:18,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:18,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:18,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:18,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:18,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:05:18,372 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 97 [2022-11-20 12:05:18,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:18,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:18,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 97 [2022-11-20 12:05:18,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:18,919 INFO L130 PetriNetUnfolder]: 302/916 cut-off events. [2022-11-20 12:05:18,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:05:18,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 916 events. 302/916 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5131 event pairs, 143 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 1533. Up to 452 conditions per place. [2022-11-20 12:05:18,927 INFO L137 encePairwiseOnDemand]: 81/97 looper letters, 64 selfloop transitions, 41 changer transitions 0/163 dead transitions. [2022-11-20 12:05:18,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 163 transitions, 540 flow [2022-11-20 12:05:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:05:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 490 transitions. [2022-11-20 12:05:18,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8419243986254296 [2022-11-20 12:05:18,930 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 490 transitions. [2022-11-20 12:05:18,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 490 transitions. [2022-11-20 12:05:18,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:18,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 490 transitions. [2022-11-20 12:05:18,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:18,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:18,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:18,936 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 186 flow. Second operand 6 states and 490 transitions. [2022-11-20 12:05:18,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 163 transitions, 540 flow [2022-11-20 12:05:18,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 163 transitions, 539 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:05:18,940 INFO L231 Difference]: Finished difference. Result has 104 places, 133 transitions, 443 flow [2022-11-20 12:05:18,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=443, PETRI_PLACES=104, PETRI_TRANSITIONS=133} [2022-11-20 12:05:18,941 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2022-11-20 12:05:18,941 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 133 transitions, 443 flow [2022-11-20 12:05:18,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:18,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:18,942 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] [2022-11-20 12:05:18,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:05:18,943 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1667848095, now seen corresponding path program 1 times [2022-11-20 12:05:18,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:18,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331177304] [2022-11-20 12:05:18,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:18,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:19,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:19,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331177304] [2022-11-20 12:05:19,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331177304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:19,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:19,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:05:19,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881527844] [2022-11-20 12:05:19,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:19,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:19,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:19,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:19,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:05:19,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 97 [2022-11-20 12:05:19,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 133 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:19,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:19,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 97 [2022-11-20 12:05:19,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:20,171 INFO L130 PetriNetUnfolder]: 487/1481 cut-off events. [2022-11-20 12:05:20,171 INFO L131 PetriNetUnfolder]: For 428/442 co-relation queries the response was YES. [2022-11-20 12:05:20,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3446 conditions, 1481 events. 487/1481 cut-off events. For 428/442 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9980 event pairs, 40 based on Foata normal form. 24/1422 useless extension candidates. Maximal degree in co-relation 3410. Up to 430 conditions per place. [2022-11-20 12:05:20,183 INFO L137 encePairwiseOnDemand]: 86/97 looper letters, 151 selfloop transitions, 32 changer transitions 0/247 dead transitions. [2022-11-20 12:05:20,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 247 transitions, 1212 flow [2022-11-20 12:05:20,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:20,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:05:20,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 524 transitions. [2022-11-20 12:05:20,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9003436426116839 [2022-11-20 12:05:20,187 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 524 transitions. [2022-11-20 12:05:20,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 524 transitions. [2022-11-20 12:05:20,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:20,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 524 transitions. [2022-11-20 12:05:20,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,192 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,192 INFO L175 Difference]: Start difference. First operand has 104 places, 133 transitions, 443 flow. Second operand 6 states and 524 transitions. [2022-11-20 12:05:20,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 247 transitions, 1212 flow [2022-11-20 12:05:20,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 247 transitions, 1212 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:05:20,204 INFO L231 Difference]: Finished difference. Result has 114 places, 163 transitions, 745 flow [2022-11-20 12:05:20,204 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=745, PETRI_PLACES=114, PETRI_TRANSITIONS=163} [2022-11-20 12:05:20,205 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 14 predicate places. [2022-11-20 12:05:20,206 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 163 transitions, 745 flow [2022-11-20 12:05:20,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:20,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:20,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:05:20,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1266553114, now seen corresponding path program 1 times [2022-11-20 12:05:20,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:20,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343423446] [2022-11-20 12:05:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:20,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:20,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:20,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343423446] [2022-11-20 12:05:20,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343423446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:20,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:20,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:05:20,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113163362] [2022-11-20 12:05:20,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:20,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:20,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:20,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:20,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:20,323 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 97 [2022-11-20 12:05:20,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 163 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:20,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 97 [2022-11-20 12:05:20,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:20,399 INFO L130 PetriNetUnfolder]: 39/284 cut-off events. [2022-11-20 12:05:20,399 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-20 12:05:20,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 284 events. 39/284 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 986 event pairs, 4 based on Foata normal form. 2/272 useless extension candidates. Maximal degree in co-relation 487. Up to 64 conditions per place. [2022-11-20 12:05:20,402 INFO L137 encePairwiseOnDemand]: 93/97 looper letters, 7 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2022-11-20 12:05:20,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 389 flow [2022-11-20 12:05:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:05:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2022-11-20 12:05:20,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9312714776632303 [2022-11-20 12:05:20,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2022-11-20 12:05:20,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2022-11-20 12:05:20,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:20,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2022-11-20 12:05:20,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,408 INFO L175 Difference]: Start difference. First operand has 114 places, 163 transitions, 745 flow. Second operand 3 states and 271 transitions. [2022-11-20 12:05:20,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 389 flow [2022-11-20 12:05:20,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 347 flow, removed 13 selfloop flow, removed 8 redundant places. [2022-11-20 12:05:20,418 INFO L231 Difference]: Finished difference. Result has 107 places, 112 transitions, 333 flow [2022-11-20 12:05:20,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=107, PETRI_TRANSITIONS=112} [2022-11-20 12:05:20,422 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2022-11-20 12:05:20,422 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 112 transitions, 333 flow [2022-11-20 12:05:20,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:20,423 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] [2022-11-20 12:05:20,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:05:20,423 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1861706891, now seen corresponding path program 1 times [2022-11-20 12:05:20,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:20,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562942400] [2022-11-20 12:05:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:20,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:20,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:20,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562942400] [2022-11-20 12:05:20,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562942400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:20,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:20,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:05:20,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955033184] [2022-11-20 12:05:20,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:20,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:20,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:20,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:05:20,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 97 [2022-11-20 12:05:20,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 112 transitions, 333 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:20,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:20,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 97 [2022-11-20 12:05:20,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:21,073 INFO L130 PetriNetUnfolder]: 148/556 cut-off events. [2022-11-20 12:05:21,074 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2022-11-20 12:05:21,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 556 events. 148/556 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2536 event pairs, 44 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 1142. Up to 301 conditions per place. [2022-11-20 12:05:21,077 INFO L137 encePairwiseOnDemand]: 86/97 looper letters, 56 selfloop transitions, 22 changer transitions 4/141 dead transitions. [2022-11-20 12:05:21,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 141 transitions, 587 flow [2022-11-20 12:05:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:05:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2022-11-20 12:05:21,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7663230240549829 [2022-11-20 12:05:21,080 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2022-11-20 12:05:21,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2022-11-20 12:05:21,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:21,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2022-11-20 12:05:21,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,084 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,084 INFO L175 Difference]: Start difference. First operand has 107 places, 112 transitions, 333 flow. Second operand 6 states and 446 transitions. [2022-11-20 12:05:21,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 141 transitions, 587 flow [2022-11-20 12:05:21,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 141 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:05:21,090 INFO L231 Difference]: Finished difference. Result has 116 places, 133 transitions, 511 flow [2022-11-20 12:05:21,091 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=511, PETRI_PLACES=116, PETRI_TRANSITIONS=133} [2022-11-20 12:05:21,093 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 16 predicate places. [2022-11-20 12:05:21,093 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 133 transitions, 511 flow [2022-11-20 12:05:21,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:21,094 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] [2022-11-20 12:05:21,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:05:21,094 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:21,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:21,095 INFO L85 PathProgramCache]: Analyzing trace with hash -865360762, now seen corresponding path program 1 times [2022-11-20 12:05:21,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:21,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701485835] [2022-11-20 12:05:21,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:21,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:21,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:21,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701485835] [2022-11-20 12:05:21,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701485835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:21,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:21,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:05:21,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108168276] [2022-11-20 12:05:21,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:21,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:21,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:21,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:21,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:05:21,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 97 [2022-11-20 12:05:21,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 133 transitions, 511 flow. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:21,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 97 [2022-11-20 12:05:21,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:21,789 INFO L130 PetriNetUnfolder]: 184/762 cut-off events. [2022-11-20 12:05:21,789 INFO L131 PetriNetUnfolder]: For 327/354 co-relation queries the response was YES. [2022-11-20 12:05:21,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 762 events. 184/762 cut-off events. For 327/354 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4295 event pairs, 21 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 1836. Up to 304 conditions per place. [2022-11-20 12:05:21,794 INFO L137 encePairwiseOnDemand]: 83/97 looper letters, 74 selfloop transitions, 51 changer transitions 10/199 dead transitions. [2022-11-20 12:05:21,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 199 transitions, 1108 flow [2022-11-20 12:05:21,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:05:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2022-11-20 12:05:21,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8402061855670103 [2022-11-20 12:05:21,797 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 489 transitions. [2022-11-20 12:05:21,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 489 transitions. [2022-11-20 12:05:21,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:21,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 489 transitions. [2022-11-20 12:05:21,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,801 INFO L175 Difference]: Start difference. First operand has 116 places, 133 transitions, 511 flow. Second operand 6 states and 489 transitions. [2022-11-20 12:05:21,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 199 transitions, 1108 flow [2022-11-20 12:05:21,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 199 transitions, 1070 flow, removed 19 selfloop flow, removed 0 redundant places. [2022-11-20 12:05:21,809 INFO L231 Difference]: Finished difference. Result has 126 places, 174 transitions, 927 flow [2022-11-20 12:05:21,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=927, PETRI_PLACES=126, PETRI_TRANSITIONS=174} [2022-11-20 12:05:21,810 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2022-11-20 12:05:21,811 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 174 transitions, 927 flow [2022-11-20 12:05:21,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:21,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:21,812 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, 1, 1] [2022-11-20 12:05:21,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:05:21,812 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:21,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:21,813 INFO L85 PathProgramCache]: Analyzing trace with hash -611001653, now seen corresponding path program 1 times [2022-11-20 12:05:21,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:21,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56943039] [2022-11-20 12:05:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:21,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:22,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:22,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56943039] [2022-11-20 12:05:22,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56943039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:22,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:22,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:05:22,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374117971] [2022-11-20 12:05:22,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:22,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:05:22,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:22,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:05:22,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:05:22,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 97 [2022-11-20 12:05:22,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 174 transitions, 927 flow. Second operand has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:22,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:22,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 97 [2022-11-20 12:05:22,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:23,173 INFO L130 PetriNetUnfolder]: 198/750 cut-off events. [2022-11-20 12:05:23,173 INFO L131 PetriNetUnfolder]: For 582/586 co-relation queries the response was YES. [2022-11-20 12:05:23,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 750 events. 198/750 cut-off events. For 582/586 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4151 event pairs, 35 based on Foata normal form. 11/756 useless extension candidates. Maximal degree in co-relation 2258. Up to 297 conditions per place. [2022-11-20 12:05:23,181 INFO L137 encePairwiseOnDemand]: 87/97 looper letters, 121 selfloop transitions, 29 changer transitions 8/212 dead transitions. [2022-11-20 12:05:23,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 212 transitions, 1511 flow [2022-11-20 12:05:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:05:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:05:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 596 transitions. [2022-11-20 12:05:23,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6827033218785796 [2022-11-20 12:05:23,185 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 596 transitions. [2022-11-20 12:05:23,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 596 transitions. [2022-11-20 12:05:23,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:23,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 596 transitions. [2022-11-20 12:05:23,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 66.22222222222223) internal successors, (596), 9 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:23,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:23,194 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:23,194 INFO L175 Difference]: Start difference. First operand has 126 places, 174 transitions, 927 flow. Second operand 9 states and 596 transitions. [2022-11-20 12:05:23,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 212 transitions, 1511 flow [2022-11-20 12:05:23,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 212 transitions, 1459 flow, removed 18 selfloop flow, removed 2 redundant places. [2022-11-20 12:05:23,212 INFO L231 Difference]: Finished difference. Result has 131 places, 173 transitions, 929 flow [2022-11-20 12:05:23,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=929, PETRI_PLACES=131, PETRI_TRANSITIONS=173} [2022-11-20 12:05:23,216 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 31 predicate places. [2022-11-20 12:05:23,217 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 173 transitions, 929 flow [2022-11-20 12:05:23,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:23,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:23,218 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] [2022-11-20 12:05:23,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:05:23,218 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:23,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1848770840, now seen corresponding path program 1 times [2022-11-20 12:05:23,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:23,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171115401] [2022-11-20 12:05:23,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:23,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:05:24,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:24,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171115401] [2022-11-20 12:05:24,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171115401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:24,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:24,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:05:24,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994999321] [2022-11-20 12:05:24,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:24,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:05:24,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:24,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:05:24,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:05:24,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 97 [2022-11-20 12:05:24,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 173 transitions, 929 flow. Second operand has 10 states, 10 states have (on average 63.2) internal successors, (632), 10 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:24,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:05:24,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 97 [2022-11-20 12:05:24,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:05:24,727 INFO L130 PetriNetUnfolder]: 223/843 cut-off events. [2022-11-20 12:05:24,727 INFO L131 PetriNetUnfolder]: For 830/834 co-relation queries the response was YES. [2022-11-20 12:05:24,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 843 events. 223/843 cut-off events. For 830/834 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4970 event pairs, 24 based on Foata normal form. 19/861 useless extension candidates. Maximal degree in co-relation 2605. Up to 164 conditions per place. [2022-11-20 12:05:24,734 INFO L137 encePairwiseOnDemand]: 82/97 looper letters, 132 selfloop transitions, 58 changer transitions 4/251 dead transitions. [2022-11-20 12:05:24,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 251 transitions, 1827 flow [2022-11-20 12:05:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:05:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:05:24,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 652 transitions. [2022-11-20 12:05:24,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7468499427262314 [2022-11-20 12:05:24,738 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 652 transitions. [2022-11-20 12:05:24,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 652 transitions. [2022-11-20 12:05:24,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:05:24,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 652 transitions. [2022-11-20 12:05:24,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.44444444444444) internal successors, (652), 9 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:24,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:24,744 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:24,745 INFO L175 Difference]: Start difference. First operand has 131 places, 173 transitions, 929 flow. Second operand 9 states and 652 transitions. [2022-11-20 12:05:24,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 251 transitions, 1827 flow [2022-11-20 12:05:24,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 251 transitions, 1729 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 12:05:24,762 INFO L231 Difference]: Finished difference. Result has 135 places, 192 transitions, 1237 flow [2022-11-20 12:05:24,762 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1237, PETRI_PLACES=135, PETRI_TRANSITIONS=192} [2022-11-20 12:05:24,763 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 35 predicate places. [2022-11-20 12:05:24,763 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 192 transitions, 1237 flow [2022-11-20 12:05:24,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.2) internal successors, (632), 10 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:05:24,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:05:24,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:24,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:05:24,765 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 12:05:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:24,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1205163072, now seen corresponding path program 1 times [2022-11-20 12:05:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:24,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861954504] [2022-11-20 12:05:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:24,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:05:24,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:05:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:05:24,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:05:24,872 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:05:24,874 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-20 12:05:24,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-20 12:05:24,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-20 12:05:24,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-20 12:05:24,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-20 12:05:24,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2022-11-20 12:05:24,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-20 12:05:24,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-20 12:05:24,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-20 12:05:24,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-20 12:05:24,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-20 12:05:24,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-20 12:05:24,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-20 12:05:24,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-20 12:05:24,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:05:24,887 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:24,896 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:05:24,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:05:24,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:05:24 BasicIcfg [2022-11-20 12:05:24,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:05:24,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:05:24,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:05:24,981 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:05:24,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:16" (3/4) ... [2022-11-20 12:05:24,985 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:05:24,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:05:24,986 INFO L158 Benchmark]: Toolchain (without parser) took 10184.85ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 119.8MB in the beginning and 100.2MB in the end (delta: 19.6MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-11-20 12:05:24,986 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 153.1MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:05:24,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 976.91ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 81.8MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 12:05:24,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.99ms. Allocated memory is still 153.1MB. Free memory was 81.8MB in the beginning and 79.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:05:24,987 INFO L158 Benchmark]: Boogie Preprocessor took 35.28ms. Allocated memory is still 153.1MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:05:24,988 INFO L158 Benchmark]: RCFGBuilder took 662.89ms. Allocated memory is still 153.1MB. Free memory was 77.6MB in the beginning and 122.5MB in the end (delta: -44.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-20 12:05:24,990 INFO L158 Benchmark]: TraceAbstraction took 8402.03ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 121.7MB in the beginning and 100.2MB in the end (delta: 21.5MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2022-11-20 12:05:24,991 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 186.6MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:05:24,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 153.1MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 976.91ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 81.8MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.99ms. Allocated memory is still 153.1MB. Free memory was 81.8MB in the beginning and 79.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.28ms. Allocated memory is still 153.1MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 662.89ms. Allocated memory is still 153.1MB. Free memory was 77.6MB in the beginning and 122.5MB in the end (delta: -44.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8402.03ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 121.7MB in the beginning and 100.2MB in the end (delta: 21.5MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 186.6MB. Free memory is still 100.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; VAL [d={0:0}] [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [d={0:0}, m={1:0}] [L1237] 0 pthread_t id; VAL [d={0:0}, id={9:0}, m={1:0}] [L1238] 0 data *z; VAL [d={0:0}, id={9:0}, m={1:0}] [L1239] 0 d = malloc(sizeof(data)) VAL [d={-2:0}, d = malloc(sizeof(data))=29, id={9:0}, m={1:0}, malloc(sizeof(data))={-2:0}] [L1240] 0 z = d VAL [d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x=25, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x=25, id={9:0}, m={1:0}, z={-2:0}] [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=26, m={1:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=26, id={9:0}, m={1:0}, z={-2:0}, z->y=27] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=28, id={9:0}, m={1:0}, z={-2:0}, z->y=27] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->y = 8 [1232] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1495 IncrementalHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 137 mSDtfsCounter, 1495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1237occurred in iteration=9, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:05:25,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce6bf413-1e78-4717-b75d-f171b98c581d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE