./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/13_unverif.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/13_unverif.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R --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 ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 --- 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-38b53e6 [2022-11-25 18:11:25,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:11:25,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:11:25,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:11:25,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:11:25,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:11:25,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:11:25,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:11:25,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:11:25,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:11:25,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:11:25,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:11:25,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:11:25,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:11:25,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:11:25,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:11:25,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:11:25,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:11:25,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:11:25,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:11:25,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:11:25,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:11:25,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:11:25,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:11:25,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:11:25,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:11:25,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:11:25,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:11:25,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:11:25,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:11:25,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:11:25,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:11:25,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:11:25,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:11:25,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:11:25,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:11:25,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:11:25,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:11:25,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:11:25,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:11:25,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:11:25,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:11:25,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:11:25,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:11:25,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:11:25,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:11:25,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:11:25,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:11:25,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:11:25,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:11:25,721 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:11:25,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:11:25,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:11:25,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:11:25,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:11:25,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:11:25,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:11:25,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:11:25,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:11:25,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:11:25,725 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:11:25,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:11:25,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:11:25,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:11:25,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:11:25,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:11:25,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:11:25,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:11:25,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:11:25,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:11:25,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:11:25,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:11:25,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:11:25,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:11:25,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:11:25,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:11:25,729 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:11:25,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:11:25,730 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 [2022-11-25 18:11:26,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:11:26,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:11:26,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:11:26,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:11:26,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:11:26,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-ext/13_unverif.i [2022-11-25 18:11:29,299 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:11:29,614 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:11:29,615 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/sv-benchmarks/c/pthread-ext/13_unverif.i [2022-11-25 18:11:29,627 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/data/ae8fac47f/4b53441f878248e784865d91e828b217/FLAG41f3733cd [2022-11-25 18:11:29,643 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/data/ae8fac47f/4b53441f878248e784865d91e828b217 [2022-11-25 18:11:29,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:11:29,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:11:29,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:11:29,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:11:29,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:11:29,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:11:29" (1/1) ... [2022-11-25 18:11:29,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211dc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:29, skipping insertion in model container [2022-11-25 18:11:29,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:11:29" (1/1) ... [2022-11-25 18:11:29,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:11:29,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:11:30,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/sv-benchmarks/c/pthread-ext/13_unverif.i[30213,30226] [2022-11-25 18:11:30,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:11:30,042 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:11:30,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/sv-benchmarks/c/pthread-ext/13_unverif.i[30213,30226] [2022-11-25 18:11:30,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:11:30,118 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:11:30,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30 WrapperNode [2022-11-25 18:11:30,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:11:30,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:11:30,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:11:30,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:11:30,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,162 INFO L138 Inliner]: procedures = 168, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-25 18:11:30,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:11:30,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:11:30,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:11:30,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:11:30,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,186 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:11:30,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:11:30,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:11:30,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:11:30,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (1/1) ... [2022-11-25 18:11:30,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:11:30,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:11:30,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:11:30,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:11:30,284 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 18:11:30,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 18:11:30,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:11:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:11:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:11:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:11:30,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:11:30,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:11:30,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:11:30,289 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:11:30,454 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:11:30,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:11:30,640 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:11:30,702 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:11:30,703 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:11:30,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:11:30 BoogieIcfgContainer [2022-11-25 18:11:30,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:11:30,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:11:30,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:11:30,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:11:30,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:11:29" (1/3) ... [2022-11-25 18:11:30,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7314f954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:11:30, skipping insertion in model container [2022-11-25 18:11:30,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:11:30" (2/3) ... [2022-11-25 18:11:30,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7314f954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:11:30, skipping insertion in model container [2022-11-25 18:11:30,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:11:30" (3/3) ... [2022-11-25 18:11:30,715 INFO L112 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2022-11-25 18:11:30,725 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:11:30,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:11:30,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-25 18:11:30,738 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:11:30,791 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:11:30,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2022-11-25 18:11:30,889 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-11-25 18:11:30,889 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:30,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2022-11-25 18:11:30,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 125 flow [2022-11-25 18:11:30,899 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 125 flow [2022-11-25 18:11:30,903 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:11:30,918 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 125 flow [2022-11-25 18:11:30,921 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 125 flow [2022-11-25 18:11:30,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2022-11-25 18:11:30,940 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-11-25 18:11:30,940 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:30,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2022-11-25 18:11:30,943 INFO L119 LiptonReduction]: Number of co-enabled transitions 840 [2022-11-25 18:11:32,730 INFO L134 LiptonReduction]: Checked pairs total: 728 [2022-11-25 18:11:32,730 INFO L136 LiptonReduction]: Total number of compositions: 60 [2022-11-25 18:11:32,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:11:32,756 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;@258e7cf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:11:32,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-25 18:11:32,762 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 18:11:32,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:32,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:32,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:11:32,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-25 18:11:32,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:32,772 INFO L85 PathProgramCache]: Analyzing trace with hash 9400754, now seen corresponding path program 1 times [2022-11-25 18:11:32,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:32,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984906484] [2022-11-25 18:11:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:33,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:33,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984906484] [2022-11-25 18:11:33,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984906484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:33,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:33,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:11:33,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048159174] [2022-11-25 18:11:33,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:33,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:11:33,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:33,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:11:33,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:11:33,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 120 [2022-11-25 18:11:33,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 37 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:33,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 120 [2022-11-25 18:11:33,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:33,144 INFO L130 PetriNetUnfolder]: 7/22 cut-off events. [2022-11-25 18:11:33,144 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:33,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 22 events. 7/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 39 event pairs, 4 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 33. Up to 19 conditions per place. [2022-11-25 18:11:33,146 INFO L137 encePairwiseOnDemand]: 113/120 looper letters, 7 selfloop transitions, 0 changer transitions 0/9 dead transitions. [2022-11-25 18:11:33,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 9 transitions, 37 flow [2022-11-25 18:11:33,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:11:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:11:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2022-11-25 18:11:33,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2022-11-25 18:11:33,161 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 116 transitions. [2022-11-25 18:11:33,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 116 transitions. [2022-11-25 18:11:33,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:33,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 116 transitions. [2022-11-25 18:11:33,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,173 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,175 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 37 flow. Second operand 2 states and 116 transitions. [2022-11-25 18:11:33,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 9 transitions, 37 flow [2022-11-25 18:11:33,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 37 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:11:33,179 INFO L231 Difference]: Finished difference. Result has 12 places, 9 transitions, 23 flow [2022-11-25 18:11:33,181 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=23, PETRI_PLACES=12, PETRI_TRANSITIONS=9} [2022-11-25 18:11:33,185 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, -6 predicate places. [2022-11-25 18:11:33,185 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 9 transitions, 23 flow [2022-11-25 18:11:33,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,186 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:33,186 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:11:33,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:11:33,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-25 18:11:33,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash 291424007, now seen corresponding path program 1 times [2022-11-25 18:11:33,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:33,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911720933] [2022-11-25 18:11:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:33,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:33,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:33,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911720933] [2022-11-25 18:11:33,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911720933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:33,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:33,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:11:33,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973697167] [2022-11-25 18:11:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:33,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:11:33,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:11:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:33,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 120 [2022-11-25 18:11:33,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 23 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:33,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 120 [2022-11-25 18:11:33,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:33,330 INFO L130 PetriNetUnfolder]: 7/19 cut-off events. [2022-11-25 18:11:33,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:33,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 19 events. 7/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 28 event pairs, 2 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 40. Up to 11 conditions per place. [2022-11-25 18:11:33,331 INFO L137 encePairwiseOnDemand]: 118/120 looper letters, 8 selfloop transitions, 1 changer transitions 0/10 dead transitions. [2022-11-25 18:11:33,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 10 transitions, 43 flow [2022-11-25 18:11:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:11:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:11:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2022-11-25 18:11:33,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39444444444444443 [2022-11-25 18:11:33,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 142 transitions. [2022-11-25 18:11:33,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 142 transitions. [2022-11-25 18:11:33,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:33,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 142 transitions. [2022-11-25 18:11:33,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,338 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 23 flow. Second operand 3 states and 142 transitions. [2022-11-25 18:11:33,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 10 transitions, 43 flow [2022-11-25 18:11:33,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 10 transitions, 43 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:11:33,339 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 23 flow [2022-11-25 18:11:33,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=23, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2022-11-25 18:11:33,340 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, -5 predicate places. [2022-11-25 18:11:33,341 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 23 flow [2022-11-25 18:11:33,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:33,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:33,341 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 18:11:33,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:11:33,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-25 18:11:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash 444183801, now seen corresponding path program 1 times [2022-11-25 18:11:33,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:33,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414423715] [2022-11-25 18:11:33,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:33,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:11:33,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:11:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:11:33,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:11:33,390 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:11:33,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2022-11-25 18:11:33,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-25 18:11:33,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-25 18:11:33,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-25 18:11:33,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-25 18:11:33,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-25 18:11:33,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2022-11-25 18:11:33,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-25 18:11:33,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-25 18:11:33,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-25 18:11:33,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-11-25 18:11:33,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-11-25 18:11:33,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-25 18:11:33,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-25 18:11:33,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-25 18:11:33,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:11:33,397 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 18:11:33,400 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:11:33,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 18:11:33,420 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:11:33,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 194 flow [2022-11-25 18:11:33,446 INFO L130 PetriNetUnfolder]: 7/115 cut-off events. [2022-11-25 18:11:33,446 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:11:33,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 7/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 249 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2022-11-25 18:11:33,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 194 flow [2022-11-25 18:11:33,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 194 flow [2022-11-25 18:11:33,450 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:11:33,450 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 194 flow [2022-11-25 18:11:33,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 91 transitions, 194 flow [2022-11-25 18:11:33,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 194 flow [2022-11-25 18:11:33,470 INFO L130 PetriNetUnfolder]: 7/115 cut-off events. [2022-11-25 18:11:33,470 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:11:33,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 7/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 249 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2022-11-25 18:11:33,475 INFO L119 LiptonReduction]: Number of co-enabled transitions 3540 [2022-11-25 18:11:34,959 INFO L134 LiptonReduction]: Checked pairs total: 18286 [2022-11-25 18:11:34,959 INFO L136 LiptonReduction]: Total number of compositions: 59 [2022-11-25 18:11:34,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:11:34,963 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;@258e7cf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:11:34,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-25 18:11:34,965 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-11-25 18:11:34,965 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:34,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:34,965 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:11:34,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 18:11:34,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:34,966 INFO L85 PathProgramCache]: Analyzing trace with hash 14913086, now seen corresponding path program 1 times [2022-11-25 18:11:34,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:34,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292996643] [2022-11-25 18:11:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:34,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:34,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:34,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292996643] [2022-11-25 18:11:34,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292996643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:34,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:35,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:11:35,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600221156] [2022-11-25 18:11:35,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:35,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:11:35,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:35,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:11:35,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:11:35,002 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 150 [2022-11-25 18:11:35,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 110 flow. Second operand has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:35,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 150 [2022-11-25 18:11:35,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:35,100 INFO L130 PetriNetUnfolder]: 89/373 cut-off events. [2022-11-25 18:11:35,101 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-25 18:11:35,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 373 events. 89/373 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2078 event pairs, 65 based on Foata normal form. 19/318 useless extension candidates. Maximal degree in co-relation 223. Up to 152 conditions per place. [2022-11-25 18:11:35,109 INFO L137 encePairwiseOnDemand]: 142/150 looper letters, 13 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2022-11-25 18:11:35,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 120 flow [2022-11-25 18:11:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:11:35,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:11:35,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2022-11-25 18:11:35,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.57 [2022-11-25 18:11:35,115 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2022-11-25 18:11:35,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2022-11-25 18:11:35,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:35,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2022-11-25 18:11:35,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,118 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,118 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 110 flow. Second operand 2 states and 171 transitions. [2022-11-25 18:11:35,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 120 flow [2022-11-25 18:11:35,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 118 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-25 18:11:35,120 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 92 flow [2022-11-25 18:11:35,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2022-11-25 18:11:35,121 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -6 predicate places. [2022-11-25 18:11:35,121 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 92 flow [2022-11-25 18:11:35,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:35,122 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 18:11:35,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:11:35,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 18:11:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1446587617, now seen corresponding path program 1 times [2022-11-25 18:11:35,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:35,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260582045] [2022-11-25 18:11:35,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:35,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:35,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260582045] [2022-11-25 18:11:35,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260582045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:35,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:35,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:11:35,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184637166] [2022-11-25 18:11:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:35,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:11:35,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:35,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:11:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:35,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 150 [2022-11-25 18:11:35,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:35,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 150 [2022-11-25 18:11:35,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:35,278 INFO L130 PetriNetUnfolder]: 212/672 cut-off events. [2022-11-25 18:11:35,278 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 18:11:35,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 672 events. 212/672 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4295 event pairs, 60 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 1063. Up to 292 conditions per place. [2022-11-25 18:11:35,284 INFO L137 encePairwiseOnDemand]: 142/150 looper letters, 28 selfloop transitions, 6 changer transitions 0/56 dead transitions. [2022-11-25 18:11:35,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 195 flow [2022-11-25 18:11:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:11:35,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:11:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2022-11-25 18:11:35,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.54 [2022-11-25 18:11:35,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2022-11-25 18:11:35,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2022-11-25 18:11:35,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:35,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2022-11-25 18:11:35,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,291 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 92 flow. Second operand 3 states and 243 transitions. [2022-11-25 18:11:35,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 195 flow [2022-11-25 18:11:35,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 56 transitions, 195 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:11:35,293 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 144 flow [2022-11-25 18:11:35,294 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2022-11-25 18:11:35,294 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2022-11-25 18:11:35,295 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 144 flow [2022-11-25 18:11:35,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:35,298 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:11:35,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:11:35,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 18:11:35,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:35,301 INFO L85 PathProgramCache]: Analyzing trace with hash -409746792, now seen corresponding path program 1 times [2022-11-25 18:11:35,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:35,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977493390] [2022-11-25 18:11:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:35,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:35,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977493390] [2022-11-25 18:11:35,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977493390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:35,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:35,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:11:35,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064096714] [2022-11-25 18:11:35,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:35,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:11:35,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:11:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:35,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 150 [2022-11-25 18:11:35,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:35,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 150 [2022-11-25 18:11:35,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:35,543 INFO L130 PetriNetUnfolder]: 525/1109 cut-off events. [2022-11-25 18:11:35,544 INFO L131 PetriNetUnfolder]: For 146/147 co-relation queries the response was YES. [2022-11-25 18:11:35,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 1109 events. 525/1109 cut-off events. For 146/147 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6783 event pairs, 155 based on Foata normal form. 0/1072 useless extension candidates. Maximal degree in co-relation 2251. Up to 612 conditions per place. [2022-11-25 18:11:35,552 INFO L137 encePairwiseOnDemand]: 136/150 looper letters, 38 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2022-11-25 18:11:35,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 293 flow [2022-11-25 18:11:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:11:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:11:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2022-11-25 18:11:35,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5177777777777778 [2022-11-25 18:11:35,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2022-11-25 18:11:35,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2022-11-25 18:11:35,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:35,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2022-11-25 18:11:35,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,560 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 144 flow. Second operand 3 states and 233 transitions. [2022-11-25 18:11:35,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 293 flow [2022-11-25 18:11:35,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:11:35,566 INFO L231 Difference]: Finished difference. Result has 51 places, 57 transitions, 220 flow [2022-11-25 18:11:35,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=51, PETRI_TRANSITIONS=57} [2022-11-25 18:11:35,571 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2022-11-25 18:11:35,571 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 57 transitions, 220 flow [2022-11-25 18:11:35,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:35,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:35,572 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 18:11:35,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:11:35,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-25 18:11:35,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:35,575 INFO L85 PathProgramCache]: Analyzing trace with hash -892587587, now seen corresponding path program 1 times [2022-11-25 18:11:35,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:35,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782852757] [2022-11-25 18:11:35,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:35,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:11:35,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:11:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:11:35,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:11:35,629 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:11:35,629 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-11-25 18:11:35,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-25 18:11:35,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-25 18:11:35,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-25 18:11:35,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-25 18:11:35,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-25 18:11:35,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-25 18:11:35,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-25 18:11:35,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-25 18:11:35,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-25 18:11:35,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-11-25 18:11:35,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-25 18:11:35,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-25 18:11:35,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-25 18:11:35,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-25 18:11:35,636 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-25 18:11:35,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-25 18:11:35,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-25 18:11:35,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-25 18:11:35,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-25 18:11:35,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-25 18:11:35,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-25 18:11:35,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:11:35,638 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:11:35,639 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:11:35,639 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 18:11:35,671 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:11:35,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 122 transitions, 265 flow [2022-11-25 18:11:35,706 INFO L130 PetriNetUnfolder]: 10/159 cut-off events. [2022-11-25 18:11:35,706 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 18:11:35,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 159 events. 10/159 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 427 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2022-11-25 18:11:35,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 122 transitions, 265 flow [2022-11-25 18:11:35,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 122 transitions, 265 flow [2022-11-25 18:11:35,712 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:11:35,712 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 122 transitions, 265 flow [2022-11-25 18:11:35,712 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 122 transitions, 265 flow [2022-11-25 18:11:35,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 122 transitions, 265 flow [2022-11-25 18:11:35,741 INFO L130 PetriNetUnfolder]: 10/159 cut-off events. [2022-11-25 18:11:35,741 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 18:11:35,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 159 events. 10/159 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 427 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2022-11-25 18:11:35,748 INFO L119 LiptonReduction]: Number of co-enabled transitions 8100 [2022-11-25 18:11:37,598 INFO L134 LiptonReduction]: Checked pairs total: 54146 [2022-11-25 18:11:37,598 INFO L136 LiptonReduction]: Total number of compositions: 84 [2022-11-25 18:11:37,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:11:37,604 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;@258e7cf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:11:37,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-25 18:11:37,608 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 18:11:37,608 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:11:37,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:37,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 18:11:37,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 18:11:37,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash 21985120, now seen corresponding path program 1 times [2022-11-25 18:11:37,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:37,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926359900] [2022-11-25 18:11:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:37,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:37,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:37,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926359900] [2022-11-25 18:11:37,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926359900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:37,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:37,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:11:37,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393687497] [2022-11-25 18:11:37,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:37,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:11:37,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:37,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:11:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:11:37,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 206 [2022-11-25 18:11:37,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 165 flow. Second operand has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:37,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:37,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 206 [2022-11-25 18:11:37,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:37,961 INFO L130 PetriNetUnfolder]: 947/2460 cut-off events. [2022-11-25 18:11:37,961 INFO L131 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2022-11-25 18:11:37,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3994 conditions, 2460 events. 947/2460 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 20045 event pairs, 815 based on Foata normal form. 238/2299 useless extension candidates. Maximal degree in co-relation 655. Up to 1318 conditions per place. [2022-11-25 18:11:37,983 INFO L137 encePairwiseOnDemand]: 193/206 looper letters, 19 selfloop transitions, 0 changer transitions 0/59 dead transitions. [2022-11-25 18:11:37,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 177 flow [2022-11-25 18:11:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:11:37,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:11:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 230 transitions. [2022-11-25 18:11:37,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.558252427184466 [2022-11-25 18:11:37,985 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 230 transitions. [2022-11-25 18:11:37,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 230 transitions. [2022-11-25 18:11:37,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:37,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 230 transitions. [2022-11-25 18:11:37,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:37,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:37,988 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:37,989 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 165 flow. Second operand 2 states and 230 transitions. [2022-11-25 18:11:37,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 177 flow [2022-11-25 18:11:37,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 59 transitions, 171 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-11-25 18:11:37,991 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 133 flow [2022-11-25 18:11:37,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=133, PETRI_PLACES=64, PETRI_TRANSITIONS=59} [2022-11-25 18:11:37,992 INFO L288 CegarLoopForPetriNet]: 73 programPoint places, -9 predicate places. [2022-11-25 18:11:37,993 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 133 flow [2022-11-25 18:11:37,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:37,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:37,993 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 18:11:37,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:11:37,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 18:11:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash -347115548, now seen corresponding path program 1 times [2022-11-25 18:11:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:37,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655766036] [2022-11-25 18:11:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:38,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655766036] [2022-11-25 18:11:38,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655766036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:38,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:38,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:11:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203103231] [2022-11-25 18:11:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:38,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:11:38,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:38,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:11:38,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:38,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 206 [2022-11-25 18:11:38,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:38,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:38,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 206 [2022-11-25 18:11:38,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:38,975 INFO L130 PetriNetUnfolder]: 3785/7922 cut-off events. [2022-11-25 18:11:38,975 INFO L131 PetriNetUnfolder]: For 255/255 co-relation queries the response was YES. [2022-11-25 18:11:38,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13593 conditions, 7922 events. 3785/7922 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 68815 event pairs, 1408 based on Foata normal form. 0/7068 useless extension candidates. Maximal degree in co-relation 13587. Up to 4123 conditions per place. [2022-11-25 18:11:39,101 INFO L137 encePairwiseOnDemand]: 194/206 looper letters, 42 selfloop transitions, 9 changer transitions 0/82 dead transitions. [2022-11-25 18:11:39,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 82 transitions, 291 flow [2022-11-25 18:11:39,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:11:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:11:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2022-11-25 18:11:39,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5242718446601942 [2022-11-25 18:11:39,112 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2022-11-25 18:11:39,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2022-11-25 18:11:39,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:39,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2022-11-25 18:11:39,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:39,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:39,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:39,116 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 133 flow. Second operand 3 states and 324 transitions. [2022-11-25 18:11:39,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 82 transitions, 291 flow [2022-11-25 18:11:39,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 82 transitions, 291 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:11:39,118 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 211 flow [2022-11-25 18:11:39,119 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2022-11-25 18:11:39,119 INFO L288 CegarLoopForPetriNet]: 73 programPoint places, -5 predicate places. [2022-11-25 18:11:39,120 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 211 flow [2022-11-25 18:11:39,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:39,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:39,120 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:11:39,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:11:39,121 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 18:11:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1362541258, now seen corresponding path program 1 times [2022-11-25 18:11:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:39,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492205969] [2022-11-25 18:11:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:11:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:11:39,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:11:39,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492205969] [2022-11-25 18:11:39,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492205969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:11:39,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:11:39,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:11:39,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101552387] [2022-11-25 18:11:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:11:39,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:11:39,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:11:39,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:11:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:11:39,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 206 [2022-11-25 18:11:39,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:39,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:11:39,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 206 [2022-11-25 18:11:39,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:11:41,510 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([529] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][69], [38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 130#(= |#race~r~0| 0), 136#(= |#race~s~0| 0), 111#L701-1true, Black: 128#true, 59#L699-1true, thr1Thread1of3ForFork0InUse, 39#L709-4true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 125#true]) [2022-11-25 18:11:41,510 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2022-11-25 18:11:41,511 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-25 18:11:41,511 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-25 18:11:41,511 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-11-25 18:11:41,602 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([529] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][69], [38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 136#(= |#race~s~0| 0), 130#(= |#race~r~0| 0), 59#L699-1true, Black: 128#true, thr1Thread1of3ForFork0InUse, 39#L709-4true, 6#L701-2true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 125#true]) [2022-11-25 18:11:41,602 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2022-11-25 18:11:41,603 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-11-25 18:11:41,603 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-11-25 18:11:41,603 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-11-25 18:11:41,802 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([529] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][69], [130#(= |#race~r~0| 0), 38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 136#(= |#race~s~0| 0), 111#L701-1true, Black: 128#true, 59#L699-1true, thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 84#L709-3true, thr1Thread3of3ForFork0InUse, 125#true]) [2022-11-25 18:11:41,818 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2022-11-25 18:11:41,818 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-11-25 18:11:41,818 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-11-25 18:11:41,819 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-11-25 18:11:41,878 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([529] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][69], [130#(= |#race~r~0| 0), 38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 136#(= |#race~s~0| 0), 59#L699-1true, Black: 128#true, thr1Thread1of3ForFork0InUse, 6#L701-2true, thr1Thread2of3ForFork0InUse, 84#L709-3true, thr1Thread3of3ForFork0InUse, 125#true]) [2022-11-25 18:11:41,878 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2022-11-25 18:11:41,879 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-11-25 18:11:41,879 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-11-25 18:11:41,879 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-11-25 18:11:42,051 INFO L130 PetriNetUnfolder]: 14372/24872 cut-off events. [2022-11-25 18:11:42,051 INFO L131 PetriNetUnfolder]: For 4527/4562 co-relation queries the response was YES. [2022-11-25 18:11:42,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50898 conditions, 24872 events. 14372/24872 cut-off events. For 4527/4562 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 213573 event pairs, 4520 based on Foata normal form. 1/23715 useless extension candidates. Maximal degree in co-relation 50890. Up to 14524 conditions per place. [2022-11-25 18:11:42,255 INFO L137 encePairwiseOnDemand]: 185/206 looper letters, 57 selfloop transitions, 15 changer transitions 0/100 dead transitions. [2022-11-25 18:11:42,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 100 transitions, 447 flow [2022-11-25 18:11:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:11:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:11:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2022-11-25 18:11:42,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49514563106796117 [2022-11-25 18:11:42,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2022-11-25 18:11:42,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2022-11-25 18:11:42,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:11:42,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2022-11-25 18:11:42,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:42,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:42,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 206.0) internal successors, (824), 4 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:42,261 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 211 flow. Second operand 3 states and 306 transitions. [2022-11-25 18:11:42,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 100 transitions, 447 flow [2022-11-25 18:11:42,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 100 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:11:42,269 INFO L231 Difference]: Finished difference. Result has 70 places, 83 transitions, 325 flow [2022-11-25 18:11:42,270 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=70, PETRI_TRANSITIONS=83} [2022-11-25 18:11:42,270 INFO L288 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2022-11-25 18:11:42,271 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 83 transitions, 325 flow [2022-11-25 18:11:42,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:11:42,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:11:42,271 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:11:42,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:11:42,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-25 18:11:42,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:11:42,272 INFO L85 PathProgramCache]: Analyzing trace with hash -9021749, now seen corresponding path program 1 times [2022-11-25 18:11:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:11:42,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544721034] [2022-11-25 18:11:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:11:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:11:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:11:42,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:11:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:11:42,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:11:42,301 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:11:42,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2022-11-25 18:11:42,301 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2022-11-25 18:11:42,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2022-11-25 18:11:42,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2022-11-25 18:11:42,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2022-11-25 18:11:42,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2022-11-25 18:11:42,302 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2022-11-25 18:11:42,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2022-11-25 18:11:42,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2022-11-25 18:11:42,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2022-11-25 18:11:42,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2022-11-25 18:11:42,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2022-11-25 18:11:42,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2022-11-25 18:11:42,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2022-11-25 18:11:42,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2022-11-25 18:11:42,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2022-11-25 18:11:42,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2022-11-25 18:11:42,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2022-11-25 18:11:42,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2022-11-25 18:11:42,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2022-11-25 18:11:42,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2022-11-25 18:11:42,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2022-11-25 18:11:42,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2022-11-25 18:11:42,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2022-11-25 18:11:42,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2022-11-25 18:11:42,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2022-11-25 18:11:42,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2022-11-25 18:11:42,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2022-11-25 18:11:42,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2022-11-25 18:11:42,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:11:42,308 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 18:11:42,313 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-25 18:11:42,313 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:11:42,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:11:42 BasicIcfg [2022-11-25 18:11:42,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:11:42,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:11:42,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:11:42,356 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:11:42,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:11:30" (3/4) ... [2022-11-25 18:11:42,360 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:11:42,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:11:42,361 INFO L158 Benchmark]: Toolchain (without parser) took 12713.05ms. Allocated memory was 169.9MB in the beginning and 427.8MB in the end (delta: 257.9MB). Free memory was 136.0MB in the beginning and 107.3MB in the end (delta: 28.7MB). Peak memory consumption was 287.3MB. Max. memory is 16.1GB. [2022-11-25 18:11:42,361 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:11:42,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.87ms. Allocated memory is still 169.9MB. Free memory was 136.0MB in the beginning and 116.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 18:11:42,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.95ms. Allocated memory is still 169.9MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:11:42,444 INFO L158 Benchmark]: Boogie Preprocessor took 26.44ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 112.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:11:42,444 INFO L158 Benchmark]: RCFGBuilder took 515.23ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 98.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:11:42,444 INFO L158 Benchmark]: TraceAbstraction took 11647.61ms. Allocated memory was 169.9MB in the beginning and 427.8MB in the end (delta: 257.9MB). Free memory was 97.1MB in the beginning and 107.3MB in the end (delta: -10.2MB). Peak memory consumption was 249.5MB. Max. memory is 16.1GB. [2022-11-25 18:11:42,445 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 427.8MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:11:42,446 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.87ms. Allocated memory is still 169.9MB. Free memory was 136.0MB in the beginning and 116.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.95ms. Allocated memory is still 169.9MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.44ms. Allocated memory is still 169.9MB. Free memory was 114.5MB in the beginning and 112.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 515.23ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 98.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11647.61ms. Allocated memory was 169.9MB in the beginning and 427.8MB in the end (delta: 257.9MB). Free memory was 97.1MB in the beginning and 107.3MB in the end (delta: -10.2MB). Peak memory consumption was 249.5MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 427.8MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 60 PlacesBefore, 18 PlacesAfterwards, 60 TransitionsBefore, 16 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 60 TotalNumberOfCompositions, 728 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 728, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 514, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 514, independent: 514, independent conditional: 0, independent unconditional: 514, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 728, independent: 214, independent conditional: 0, independent unconditional: 214, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 514, unknown conditional: 0, unknown unconditional: 514] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 91 PlacesBefore, 51 PlacesAfterwards, 91 TransitionsBefore, 49 TransitionsAfterwards, 3540 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 59 TotalNumberOfCompositions, 18286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9121, independent: 8594, independent conditional: 0, independent unconditional: 8594, dependent: 527, dependent conditional: 0, dependent unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2318, independent: 2231, independent conditional: 0, independent unconditional: 2231, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2318, independent: 2137, independent conditional: 0, independent unconditional: 2137, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 181, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 282, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9121, independent: 6363, independent conditional: 0, independent unconditional: 6363, dependent: 440, dependent conditional: 0, dependent unconditional: 440, unknown: 2318, unknown conditional: 0, unknown unconditional: 2318] , Statistics on independence cache: Total cache size (in pairs): 627, Positive cache size: 581, Positive conditional cache size: 0, Positive unconditional cache size: 581, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 122 PlacesBefore, 73 PlacesAfterwards, 122 TransitionsBefore, 72 TransitionsAfterwards, 8100 CoEnabledTransitionPairs, 9 FixpointIterations, 14 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 54146 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18808, independent: 17917, independent conditional: 0, independent unconditional: 17917, dependent: 891, dependent conditional: 0, dependent unconditional: 891, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5104, independent: 4974, independent conditional: 0, independent unconditional: 4974, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5104, independent: 4537, independent conditional: 0, independent unconditional: 4537, dependent: 567, dependent conditional: 0, dependent unconditional: 567, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 567, independent: 437, independent conditional: 0, independent unconditional: 437, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 464, independent: 262, independent conditional: 0, independent unconditional: 262, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18808, independent: 12943, independent conditional: 0, independent unconditional: 12943, dependent: 761, dependent conditional: 0, dependent unconditional: 761, unknown: 5104, unknown conditional: 0, unknown unconditional: 5104] , Statistics on independence cache: Total cache size (in pairs): 1298, Positive cache size: 1224, Positive conditional cache size: 0, Positive unconditional cache size: 1224, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 698]: Data race detected Data race detected The following path leads to a data race: [L688] 0 unsigned int r = 0; [L689] 0 unsigned int s = 0; [L707] 0 pthread_t t; VAL [r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [pthread_create(&t, 0, thr1, 0)=-2, r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 [L696] 1 unsigned int l = 0; [L697] CALL 1 __VERIFIER_atomic_inc_r() [L692] EXPR 1 r!=-1 [L692] CALL 1 assume_abort_if_not(r!=-1) [L3] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(r!=-1) [L693] EXPR 1 r + 1 [L693] 1 r = r + 1 [L697] RET 1 __VERIFIER_atomic_inc_r() [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [pthread_create(&t, 0, thr1, 0)=-1, r=1, s=0, t={3:0}] [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=1, s=0] [L696] 2 unsigned int l = 0; [L697] CALL 2 __VERIFIER_atomic_inc_r() [L692] EXPR 2 r!=-1 [L692] CALL 2 assume_abort_if_not(r!=-1) [L3] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(r!=-1) [L693] EXPR 2 r + 1 [L693] 2 r = r + 1 [L697] RET 2 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=2, s=0] Now there is a data race on ~r~0 between C: r = r + 1 [693] and C: r == 1 [698] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 15 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 116 locations, 22 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: 2.2s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 26 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 145 locations, 29 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: 6.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 149 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 18 mSDtfsCounter, 149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-25 18:11:42,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8989f1-2f71-4b38-bb0a-7258b7d4bbe0/bin/uautomizer-ZsLfNo2U6R/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