./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8 --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 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- 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-e04fb08 [2022-11-16 11:39:44,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:39:44,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:39:44,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:39:44,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:39:44,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:39:44,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:39:44,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:39:44,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:39:44,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:39:44,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:39:44,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:39:44,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:39:44,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:39:44,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:39:44,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:39:44,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:39:44,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:39:44,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:39:44,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:39:44,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:39:44,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:39:44,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:39:44,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:39:44,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:39:44,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:39:44,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:39:44,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:39:44,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:39:45,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:39:45,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:39:45,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:39:45,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:39:45,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:39:45,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:39:45,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:39:45,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:39:45,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:39:45,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:39:45,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:39:45,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:39:45,017 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:39:45,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:39:45,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:39:45,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:39:45,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:39:45,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:39:45,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:39:45,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:39:45,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:39:45,073 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:39:45,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:39:45,074 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:39:45,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:39:45,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:39:45,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:39:45,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:39:45,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:39:45,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:39:45,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:39:45,077 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:39:45,077 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:39:45,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:39:45,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:39:45,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:39:45,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:39:45,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:39:45,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:39:45,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:39:45,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:39:45,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:39:45,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:39:45,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:39:45,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:39:45,082 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:39:45,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:39:45,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:39:45,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2022-11-16 11:39:45,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:39:45,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:39:45,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:39:45,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:39:45,544 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:39:45,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-16 11:39:45,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/data/b9c343b2a/5081cedef7ae4e9186d04df8937ef774/FLAGaddc45e47 [2022-11-16 11:39:46,441 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:39:46,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-16 11:39:46,471 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/data/b9c343b2a/5081cedef7ae4e9186d04df8937ef774/FLAGaddc45e47 [2022-11-16 11:39:46,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/data/b9c343b2a/5081cedef7ae4e9186d04df8937ef774 [2022-11-16 11:39:46,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:39:46,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:39:46,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:39:46,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:39:46,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:39:46,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:39:46" (1/1) ... [2022-11-16 11:39:46,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1303bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:46, skipping insertion in model container [2022-11-16 11:39:46,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:39:46" (1/1) ... [2022-11-16 11:39:46,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:39:46,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:39:47,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:39:47,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:39:47,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:39:47,801 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:39:47,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47 WrapperNode [2022-11-16 11:39:47,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:39:47,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:39:47,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:39:47,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:39:47,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:47,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:47,953 INFO L138 Inliner]: procedures = 371, calls = 41, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 333 [2022-11-16 11:39:47,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:39:47,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:39:47,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:39:47,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:39:47,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:47,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:39:48,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:39:48,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:39:48,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:39:48,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (1/1) ... [2022-11-16 11:39:48,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:39:48,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:39:48,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:39:48,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:39:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:39:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:39:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:39:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:39:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:39:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:39:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:39:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:39:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:39:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:39:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:39:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:39:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:39:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:39:48,191 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:39:48,461 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:39:48,463 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:39:49,507 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:39:49,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:39:49,522 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:39:49,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:39:49 BoogieIcfgContainer [2022-11-16 11:39:49,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:39:49,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:39:49,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:39:49,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:39:49,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:39:46" (1/3) ... [2022-11-16 11:39:49,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535aab61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:39:49, skipping insertion in model container [2022-11-16 11:39:49,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:39:47" (2/3) ... [2022-11-16 11:39:49,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535aab61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:39:49, skipping insertion in model container [2022-11-16 11:39:49,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:39:49" (3/3) ... [2022-11-16 11:39:49,537 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2022-11-16 11:39:49,553 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:39:49,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:39:49,566 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-16 11:39:49,567 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:39:49,704 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:39:49,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 404 transitions, 813 flow [2022-11-16 11:39:50,028 INFO L130 PetriNetUnfolder]: 5/403 cut-off events. [2022-11-16 11:39:50,028 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:39:50,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 403 events. 5/403 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 363 event pairs, 0 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 277. Up to 2 conditions per place. [2022-11-16 11:39:50,041 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 404 transitions, 813 flow [2022-11-16 11:39:50,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 403 transitions, 809 flow [2022-11-16 11:39:50,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:39:50,111 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;@4d4d8b75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:39:50,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-16 11:39:50,122 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2022-11-16 11:39:50,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:39:50,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:50,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:50,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:39:50,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:50,131 INFO L85 PathProgramCache]: Analyzing trace with hash -73603931, now seen corresponding path program 1 times [2022-11-16 11:39:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:50,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796235245] [2022-11-16 11:39:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:50,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:51,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:51,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:51,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796235245] [2022-11-16 11:39:51,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796235245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:51,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:51,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:51,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286287321] [2022-11-16 11:39:51,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:51,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:51,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:51,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:51,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:51,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 404 [2022-11-16 11:39:51,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 403 transitions, 809 flow. Second operand has 6 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:51,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:51,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 404 [2022-11-16 11:39:51,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:52,697 INFO L130 PetriNetUnfolder]: 649/2226 cut-off events. [2022-11-16 11:39:52,697 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:39:52,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3714 conditions, 2226 events. 649/2226 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11696 event pairs, 648 based on Foata normal form. 18/1981 useless extension candidates. Maximal degree in co-relation 3304. Up to 1469 conditions per place. [2022-11-16 11:39:52,715 INFO L137 encePairwiseOnDemand]: 382/404 looper letters, 172 selfloop transitions, 15 changer transitions 2/396 dead transitions. [2022-11-16 11:39:52,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 396 transitions, 1169 flow [2022-11-16 11:39:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:52,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:39:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1454 transitions. [2022-11-16 11:39:52,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5998349834983498 [2022-11-16 11:39:52,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1454 transitions. [2022-11-16 11:39:52,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1454 transitions. [2022-11-16 11:39:52,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:52,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1454 transitions. [2022-11-16 11:39:52,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.33333333333334) internal successors, (1454), 6 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:52,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:52,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:52,791 INFO L175 Difference]: Start difference. First operand has 402 places, 403 transitions, 809 flow. Second operand 6 states and 1454 transitions. [2022-11-16 11:39:52,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 396 transitions, 1169 flow [2022-11-16 11:39:52,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 396 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:39:52,816 INFO L231 Difference]: Finished difference. Result has 403 places, 394 transitions, 820 flow [2022-11-16 11:39:52,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=820, PETRI_PLACES=403, PETRI_TRANSITIONS=394} [2022-11-16 11:39:52,827 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 1 predicate places. [2022-11-16 11:39:52,827 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 394 transitions, 820 flow [2022-11-16 11:39:52,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:52,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:52,829 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:52,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:39:52,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:39:52,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:52,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1210769157, now seen corresponding path program 1 times [2022-11-16 11:39:52,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:52,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783356326] [2022-11-16 11:39:52,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:52,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:53,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:53,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783356326] [2022-11-16 11:39:53,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783356326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:53,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:53,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:53,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907815174] [2022-11-16 11:39:53,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:53,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:53,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:53,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:53,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:53,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 404 [2022-11-16 11:39:53,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 394 transitions, 820 flow. Second operand has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:53,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:53,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 404 [2022-11-16 11:39:53,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:54,732 INFO L130 PetriNetUnfolder]: 649/2221 cut-off events. [2022-11-16 11:39:54,732 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:39:54,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3721 conditions, 2221 events. 649/2221 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11685 event pairs, 648 based on Foata normal form. 0/1963 useless extension candidates. Maximal degree in co-relation 3463. Up to 1466 conditions per place. [2022-11-16 11:39:54,744 INFO L137 encePairwiseOnDemand]: 386/404 looper letters, 169 selfloop transitions, 15 changer transitions 0/391 dead transitions. [2022-11-16 11:39:54,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 391 transitions, 1182 flow [2022-11-16 11:39:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:39:54,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1447 transitions. [2022-11-16 11:39:54,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.596947194719472 [2022-11-16 11:39:54,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1447 transitions. [2022-11-16 11:39:54,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1447 transitions. [2022-11-16 11:39:54,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:54,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1447 transitions. [2022-11-16 11:39:54,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:54,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:54,761 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:54,762 INFO L175 Difference]: Start difference. First operand has 403 places, 394 transitions, 820 flow. Second operand 6 states and 1447 transitions. [2022-11-16 11:39:54,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 391 transitions, 1182 flow [2022-11-16 11:39:54,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 391 transitions, 1152 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:39:54,771 INFO L231 Difference]: Finished difference. Result has 398 places, 391 transitions, 814 flow [2022-11-16 11:39:54,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=814, PETRI_PLACES=398, PETRI_TRANSITIONS=391} [2022-11-16 11:39:54,773 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -4 predicate places. [2022-11-16 11:39:54,773 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 391 transitions, 814 flow [2022-11-16 11:39:54,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:54,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:54,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:54,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:39:54,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:39:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash -395197601, now seen corresponding path program 1 times [2022-11-16 11:39:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:54,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806909268] [2022-11-16 11:39:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:54,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:55,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:55,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:55,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806909268] [2022-11-16 11:39:55,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806909268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:55,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:55,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:55,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727758722] [2022-11-16 11:39:55,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:55,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:55,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:55,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:55,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 404 [2022-11-16 11:39:55,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 391 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 217.83333333333334) internal successors, (1307), 6 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:55,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:55,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 404 [2022-11-16 11:39:55,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:56,542 INFO L130 PetriNetUnfolder]: 704/2339 cut-off events. [2022-11-16 11:39:56,543 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:39:56,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3944 conditions, 2339 events. 704/2339 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12347 event pairs, 703 based on Foata normal form. 0/2072 useless extension candidates. Maximal degree in co-relation 3679. Up to 1581 conditions per place. [2022-11-16 11:39:56,558 INFO L137 encePairwiseOnDemand]: 398/404 looper letters, 174 selfloop transitions, 5 changer transitions 0/390 dead transitions. [2022-11-16 11:39:56,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 390 transitions, 1170 flow [2022-11-16 11:39:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:56,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:39:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1464 transitions. [2022-11-16 11:39:56,566 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6039603960396039 [2022-11-16 11:39:56,566 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1464 transitions. [2022-11-16 11:39:56,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1464 transitions. [2022-11-16 11:39:56,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:56,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1464 transitions. [2022-11-16 11:39:56,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,584 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,584 INFO L175 Difference]: Start difference. First operand has 398 places, 391 transitions, 814 flow. Second operand 6 states and 1464 transitions. [2022-11-16 11:39:56,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 390 transitions, 1170 flow [2022-11-16 11:39:56,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 390 transitions, 1140 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:39:56,597 INFO L231 Difference]: Finished difference. Result has 397 places, 390 transitions, 792 flow [2022-11-16 11:39:56,598 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=397, PETRI_TRANSITIONS=390} [2022-11-16 11:39:56,602 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -5 predicate places. [2022-11-16 11:39:56,602 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 390 transitions, 792 flow [2022-11-16 11:39:56,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.83333333333334) internal successors, (1307), 6 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:56,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:56,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:39:56,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:39:56,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:56,607 INFO L85 PathProgramCache]: Analyzing trace with hash -555191736, now seen corresponding path program 1 times [2022-11-16 11:39:56,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:56,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735228654] [2022-11-16 11:39:56,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:56,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:56,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:56,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735228654] [2022-11-16 11:39:56,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735228654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:56,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:56,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:39:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536693372] [2022-11-16 11:39:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:56,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:39:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:39:56,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:39:56,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 404 [2022-11-16 11:39:56,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 390 transitions, 792 flow. Second operand has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:56,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 404 [2022-11-16 11:39:56,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:56,913 INFO L130 PetriNetUnfolder]: 1/499 cut-off events. [2022-11-16 11:39:56,914 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:39:56,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 499 events. 1/499 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 340 event pairs, 0 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 80. Up to 22 conditions per place. [2022-11-16 11:39:56,916 INFO L137 encePairwiseOnDemand]: 401/404 looper letters, 36 selfloop transitions, 2 changer transitions 0/407 dead transitions. [2022-11-16 11:39:56,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 407 transitions, 910 flow [2022-11-16 11:39:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:39:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:39:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2022-11-16 11:39:56,921 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9678217821782178 [2022-11-16 11:39:56,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1173 transitions. [2022-11-16 11:39:56,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1173 transitions. [2022-11-16 11:39:56,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:56,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1173 transitions. [2022-11-16 11:39:56,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,939 INFO L175 Difference]: Start difference. First operand has 397 places, 390 transitions, 792 flow. Second operand 3 states and 1173 transitions. [2022-11-16 11:39:56,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 407 transitions, 910 flow [2022-11-16 11:39:56,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 407 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:39:56,955 INFO L231 Difference]: Finished difference. Result has 395 places, 391 transitions, 794 flow [2022-11-16 11:39:56,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=395, PETRI_TRANSITIONS=391} [2022-11-16 11:39:56,958 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -7 predicate places. [2022-11-16 11:39:56,959 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 391 transitions, 794 flow [2022-11-16 11:39:56,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:56,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:56,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:56,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:39:56,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:39:56,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:56,970 INFO L85 PathProgramCache]: Analyzing trace with hash -559674288, now seen corresponding path program 1 times [2022-11-16 11:39:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:56,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348837564] [2022-11-16 11:39:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:57,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:57,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348837564] [2022-11-16 11:39:57,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348837564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:57,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:57,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:57,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271970858] [2022-11-16 11:39:57,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:57,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:57,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:57,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 404 [2022-11-16 11:39:57,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 391 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:57,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:57,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 404 [2022-11-16 11:39:57,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:58,898 INFO L130 PetriNetUnfolder]: 704/2446 cut-off events. [2022-11-16 11:39:58,898 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:39:58,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4093 conditions, 2446 events. 704/2446 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12361 event pairs, 703 based on Foata normal form. 0/2178 useless extension candidates. Maximal degree in co-relation 3900. Up to 1615 conditions per place. [2022-11-16 11:39:58,997 INFO L137 encePairwiseOnDemand]: 398/404 looper letters, 172 selfloop transitions, 5 changer transitions 0/390 dead transitions. [2022-11-16 11:39:58,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 390 transitions, 1146 flow [2022-11-16 11:39:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:39:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:39:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1473 transitions. [2022-11-16 11:39:59,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6076732673267327 [2022-11-16 11:39:59,004 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1473 transitions. [2022-11-16 11:39:59,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1473 transitions. [2022-11-16 11:39:59,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:59,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1473 transitions. [2022-11-16 11:39:59,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:59,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:59,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:59,020 INFO L175 Difference]: Start difference. First operand has 395 places, 391 transitions, 794 flow. Second operand 6 states and 1473 transitions. [2022-11-16 11:39:59,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 390 transitions, 1146 flow [2022-11-16 11:39:59,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 390 transitions, 1144 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:39:59,032 INFO L231 Difference]: Finished difference. Result has 398 places, 390 transitions, 800 flow [2022-11-16 11:39:59,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=398, PETRI_TRANSITIONS=390} [2022-11-16 11:39:59,034 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -4 predicate places. [2022-11-16 11:39:59,034 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 390 transitions, 800 flow [2022-11-16 11:39:59,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:59,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:59,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:59,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:39:59,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:39:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash 487497433, now seen corresponding path program 1 times [2022-11-16 11:39:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:59,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119672310] [2022-11-16 11:39:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:59,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:39:59,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119672310] [2022-11-16 11:39:59,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119672310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:59,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:59,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:39:59,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756249400] [2022-11-16 11:39:59,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:59,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:39:59,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:39:59,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:39:59,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 404 [2022-11-16 11:39:59,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 390 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:39:59,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:59,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 404 [2022-11-16 11:39:59,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:01,100 INFO L130 PetriNetUnfolder]: 649/2323 cut-off events. [2022-11-16 11:40:01,100 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:40:01,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3860 conditions, 2323 events. 649/2323 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11648 event pairs, 648 based on Foata normal form. 0/2069 useless extension candidates. Maximal degree in co-relation 3630. Up to 1494 conditions per place. [2022-11-16 11:40:01,115 INFO L137 encePairwiseOnDemand]: 386/404 looper letters, 155 selfloop transitions, 15 changer transitions 0/387 dead transitions. [2022-11-16 11:40:01,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 387 transitions, 1134 flow [2022-11-16 11:40:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1487 transitions. [2022-11-16 11:40:01,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6134488448844885 [2022-11-16 11:40:01,121 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1487 transitions. [2022-11-16 11:40:01,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1487 transitions. [2022-11-16 11:40:01,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:01,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1487 transitions. [2022-11-16 11:40:01,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:01,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:01,134 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:01,135 INFO L175 Difference]: Start difference. First operand has 398 places, 390 transitions, 800 flow. Second operand 6 states and 1487 transitions. [2022-11-16 11:40:01,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 387 transitions, 1134 flow [2022-11-16 11:40:01,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 387 transitions, 1124 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:40:01,145 INFO L231 Difference]: Finished difference. Result has 395 places, 387 transitions, 814 flow [2022-11-16 11:40:01,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=814, PETRI_PLACES=395, PETRI_TRANSITIONS=387} [2022-11-16 11:40:01,149 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -7 predicate places. [2022-11-16 11:40:01,149 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 387 transitions, 814 flow [2022-11-16 11:40:01,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:01,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:01,151 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:01,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:40:01,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:01,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:01,152 INFO L85 PathProgramCache]: Analyzing trace with hash -439392774, now seen corresponding path program 1 times [2022-11-16 11:40:01,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:01,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474615596] [2022-11-16 11:40:01,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:01,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:01,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:01,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:01,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474615596] [2022-11-16 11:40:01,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474615596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:01,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:01,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:01,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381703280] [2022-11-16 11:40:01,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:01,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:01,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:01,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:01,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:40:01,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 404 [2022-11-16 11:40:01,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 387 transitions, 814 flow. Second operand has 6 states, 6 states have (on average 220.5) internal successors, (1323), 6 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:01,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:01,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 404 [2022-11-16 11:40:01,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:03,170 INFO L130 PetriNetUnfolder]: 649/2319 cut-off events. [2022-11-16 11:40:03,170 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:40:03,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3870 conditions, 2319 events. 649/2319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11631 event pairs, 648 based on Foata normal form. 0/2069 useless extension candidates. Maximal degree in co-relation 3514. Up to 1502 conditions per place. [2022-11-16 11:40:03,185 INFO L137 encePairwiseOnDemand]: 386/404 looper letters, 158 selfloop transitions, 15 changer transitions 0/384 dead transitions. [2022-11-16 11:40:03,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 384 transitions, 1154 flow [2022-11-16 11:40:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:03,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1454 transitions. [2022-11-16 11:40:03,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5998349834983498 [2022-11-16 11:40:03,191 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1454 transitions. [2022-11-16 11:40:03,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1454 transitions. [2022-11-16 11:40:03,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:03,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1454 transitions. [2022-11-16 11:40:03,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.33333333333334) internal successors, (1454), 6 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:03,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:03,284 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:03,284 INFO L175 Difference]: Start difference. First operand has 395 places, 387 transitions, 814 flow. Second operand 6 states and 1454 transitions. [2022-11-16 11:40:03,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 384 transitions, 1154 flow [2022-11-16 11:40:03,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 384 transitions, 1124 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:40:03,295 INFO L231 Difference]: Finished difference. Result has 392 places, 384 transitions, 808 flow [2022-11-16 11:40:03,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=808, PETRI_PLACES=392, PETRI_TRANSITIONS=384} [2022-11-16 11:40:03,297 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -10 predicate places. [2022-11-16 11:40:03,297 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 384 transitions, 808 flow [2022-11-16 11:40:03,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.5) internal successors, (1323), 6 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:03,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:03,298 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:03,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:40:03,299 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash 312448250, now seen corresponding path program 1 times [2022-11-16 11:40:03,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:03,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905639508] [2022-11-16 11:40:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:03,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:04,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:04,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905639508] [2022-11-16 11:40:04,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905639508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:04,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:04,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:04,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134529142] [2022-11-16 11:40:04,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:04,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:04,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:04,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:04,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:40:04,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 404 [2022-11-16 11:40:04,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 384 transitions, 808 flow. Second operand has 6 states, 6 states have (on average 221.33333333333334) internal successors, (1328), 6 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:04,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:04,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 404 [2022-11-16 11:40:04,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:05,155 INFO L130 PetriNetUnfolder]: 649/2315 cut-off events. [2022-11-16 11:40:05,155 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:40:05,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3862 conditions, 2315 events. 649/2315 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11653 event pairs, 648 based on Foata normal form. 0/2069 useless extension candidates. Maximal degree in co-relation 3510. Up to 1498 conditions per place. [2022-11-16 11:40:05,170 INFO L137 encePairwiseOnDemand]: 386/404 looper letters, 155 selfloop transitions, 15 changer transitions 0/381 dead transitions. [2022-11-16 11:40:05,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 381 transitions, 1142 flow [2022-11-16 11:40:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1451 transitions. [2022-11-16 11:40:05,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5985973597359736 [2022-11-16 11:40:05,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1451 transitions. [2022-11-16 11:40:05,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1451 transitions. [2022-11-16 11:40:05,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:05,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1451 transitions. [2022-11-16 11:40:05,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:05,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:05,192 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:05,192 INFO L175 Difference]: Start difference. First operand has 392 places, 384 transitions, 808 flow. Second operand 6 states and 1451 transitions. [2022-11-16 11:40:05,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 381 transitions, 1142 flow [2022-11-16 11:40:05,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 381 transitions, 1112 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:40:05,204 INFO L231 Difference]: Finished difference. Result has 389 places, 381 transitions, 802 flow [2022-11-16 11:40:05,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=389, PETRI_TRANSITIONS=381} [2022-11-16 11:40:05,206 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -13 predicate places. [2022-11-16 11:40:05,206 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 381 transitions, 802 flow [2022-11-16 11:40:05,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.33333333333334) internal successors, (1328), 6 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:05,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:05,208 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:05,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:40:05,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:05,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:05,209 INFO L85 PathProgramCache]: Analyzing trace with hash -994805424, now seen corresponding path program 1 times [2022-11-16 11:40:05,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:05,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298939034] [2022-11-16 11:40:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:05,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298939034] [2022-11-16 11:40:05,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298939034] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:40:05,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847084002] [2022-11-16 11:40:05,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:05,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:05,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:05,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:40:05,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:40:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:05,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:40:05,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:06,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:40:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:06,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847084002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:40:06,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:40:06,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:40:06,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580470224] [2022-11-16 11:40:06,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:40:06,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:40:06,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:06,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:40:06,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:40:06,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 404 [2022-11-16 11:40:06,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 381 transitions, 802 flow. Second operand has 10 states, 10 states have (on average 382.6) internal successors, (3826), 10 states have internal predecessors, (3826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:06,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:06,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 404 [2022-11-16 11:40:06,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:07,026 INFO L130 PetriNetUnfolder]: 1/593 cut-off events. [2022-11-16 11:40:07,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:40:07,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 593 events. 1/593 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 2/583 useless extension candidates. Maximal degree in co-relation 94. Up to 17 conditions per place. [2022-11-16 11:40:07,029 INFO L137 encePairwiseOnDemand]: 398/404 looper letters, 47 selfloop transitions, 9 changer transitions 0/415 dead transitions. [2022-11-16 11:40:07,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 415 transitions, 984 flow [2022-11-16 11:40:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:40:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:40:07,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3451 transitions. [2022-11-16 11:40:07,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9491199119911992 [2022-11-16 11:40:07,038 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3451 transitions. [2022-11-16 11:40:07,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3451 transitions. [2022-11-16 11:40:07,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:07,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3451 transitions. [2022-11-16 11:40:07,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 383.44444444444446) internal successors, (3451), 9 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:07,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 404.0) internal successors, (4040), 10 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:07,059 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 404.0) internal successors, (4040), 10 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:07,059 INFO L175 Difference]: Start difference. First operand has 389 places, 381 transitions, 802 flow. Second operand 9 states and 3451 transitions. [2022-11-16 11:40:07,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 415 transitions, 984 flow [2022-11-16 11:40:07,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 415 transitions, 954 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:40:07,068 INFO L231 Difference]: Finished difference. Result has 395 places, 387 transitions, 822 flow [2022-11-16 11:40:07,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=822, PETRI_PLACES=395, PETRI_TRANSITIONS=387} [2022-11-16 11:40:07,070 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -7 predicate places. [2022-11-16 11:40:07,070 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 387 transitions, 822 flow [2022-11-16 11:40:07,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 382.6) internal successors, (3826), 10 states have internal predecessors, (3826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:07,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:07,073 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:07,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:07,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:07,286 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:07,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash -484677280, now seen corresponding path program 2 times [2022-11-16 11:40:07,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:07,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255934015] [2022-11-16 11:40:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:07,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:08,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:08,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255934015] [2022-11-16 11:40:08,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255934015] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:40:08,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969791385] [2022-11-16 11:40:08,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:40:08,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:08,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:08,311 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:40:08,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:40:08,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:40:08,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:40:08,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:40:08,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:08,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:40:08,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 11:40:08,827 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:40:08,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 11:40:08,870 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:40:08,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 11:40:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-16 11:40:08,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:40:08,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969791385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:08,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:40:08,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-16 11:40:08,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499948291] [2022-11-16 11:40:08,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:08,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:08,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:08,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:40:08,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 404 [2022-11-16 11:40:08,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 387 transitions, 822 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:08,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:08,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 404 [2022-11-16 11:40:08,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:11,850 INFO L130 PetriNetUnfolder]: 1388/4467 cut-off events. [2022-11-16 11:40:11,850 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:40:11,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7587 conditions, 4467 events. 1388/4467 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28929 event pairs, 110 based on Foata normal form. 0/4026 useless extension candidates. Maximal degree in co-relation 7076. Up to 1979 conditions per place. [2022-11-16 11:40:11,887 INFO L137 encePairwiseOnDemand]: 376/404 looper letters, 255 selfloop transitions, 74 changer transitions 0/551 dead transitions. [2022-11-16 11:40:11,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 551 transitions, 1808 flow [2022-11-16 11:40:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1639 transitions. [2022-11-16 11:40:11,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6761551155115512 [2022-11-16 11:40:11,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1639 transitions. [2022-11-16 11:40:11,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1639 transitions. [2022-11-16 11:40:11,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:11,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1639 transitions. [2022-11-16 11:40:11,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 273.1666666666667) internal successors, (1639), 6 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:11,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:11,906 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:11,907 INFO L175 Difference]: Start difference. First operand has 395 places, 387 transitions, 822 flow. Second operand 6 states and 1639 transitions. [2022-11-16 11:40:11,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 551 transitions, 1808 flow [2022-11-16 11:40:11,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 551 transitions, 1802 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 11:40:11,920 INFO L231 Difference]: Finished difference. Result has 403 places, 454 transitions, 1288 flow [2022-11-16 11:40:11,921 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1288, PETRI_PLACES=403, PETRI_TRANSITIONS=454} [2022-11-16 11:40:11,922 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 1 predicate places. [2022-11-16 11:40:11,922 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 454 transitions, 1288 flow [2022-11-16 11:40:11,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:11,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:11,924 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:11,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-16 11:40:12,131 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:12,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:12,132 INFO L85 PathProgramCache]: Analyzing trace with hash 863114013, now seen corresponding path program 1 times [2022-11-16 11:40:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:12,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730796704] [2022-11-16 11:40:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:12,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:13,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:13,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730796704] [2022-11-16 11:40:13,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730796704] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:40:13,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649200186] [2022-11-16 11:40:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:13,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:13,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:13,267 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:40:13,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:40:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:14,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:40:14,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:14,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:40:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649200186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:40:15,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:40:15,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 11:40:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227485693] [2022-11-16 11:40:15,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:40:15,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:40:15,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:15,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:40:15,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:40:15,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 404 [2022-11-16 11:40:15,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 454 transitions, 1288 flow. Second operand has 18 states, 18 states have (on average 383.8888888888889) internal successors, (6910), 18 states have internal predecessors, (6910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:15,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:15,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 404 [2022-11-16 11:40:15,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:16,661 INFO L130 PetriNetUnfolder]: 119/1958 cut-off events. [2022-11-16 11:40:16,661 INFO L131 PetriNetUnfolder]: For 115/128 co-relation queries the response was YES. [2022-11-16 11:40:16,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 1958 events. 119/1958 cut-off events. For 115/128 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6235 event pairs, 0 based on Foata normal form. 4/1888 useless extension candidates. Maximal degree in co-relation 1684. Up to 173 conditions per place. [2022-11-16 11:40:16,672 INFO L137 encePairwiseOnDemand]: 398/404 looper letters, 103 selfloop transitions, 21 changer transitions 0/550 dead transitions. [2022-11-16 11:40:16,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 550 transitions, 1780 flow [2022-11-16 11:40:16,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:40:16,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:40:16,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8045 transitions. [2022-11-16 11:40:16,692 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9482555398396982 [2022-11-16 11:40:16,692 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8045 transitions. [2022-11-16 11:40:16,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8045 transitions. [2022-11-16 11:40:16,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:16,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8045 transitions. [2022-11-16 11:40:16,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 383.0952380952381) internal successors, (8045), 21 states have internal predecessors, (8045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:16,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 404.0) internal successors, (8888), 22 states have internal predecessors, (8888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:16,737 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 404.0) internal successors, (8888), 22 states have internal predecessors, (8888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:16,737 INFO L175 Difference]: Start difference. First operand has 403 places, 454 transitions, 1288 flow. Second operand 21 states and 8045 transitions. [2022-11-16 11:40:16,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 550 transitions, 1780 flow [2022-11-16 11:40:16,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 550 transitions, 1780 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:40:16,754 INFO L231 Difference]: Finished difference. Result has 428 places, 467 transitions, 1418 flow [2022-11-16 11:40:16,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1418, PETRI_PLACES=428, PETRI_TRANSITIONS=467} [2022-11-16 11:40:16,755 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 26 predicate places. [2022-11-16 11:40:16,756 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 467 transitions, 1418 flow [2022-11-16 11:40:16,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 383.8888888888889) internal successors, (6910), 18 states have internal predecessors, (6910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:16,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:16,760 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:16,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:16,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:16,970 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:16,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:16,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1815691005, now seen corresponding path program 2 times [2022-11-16 11:40:16,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:16,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433780394] [2022-11-16 11:40:16,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:16,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:20,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:20,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433780394] [2022-11-16 11:40:20,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433780394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:40:20,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686889204] [2022-11-16 11:40:20,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:40:20,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:20,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:20,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:40:20,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:40:21,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:40:21,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:40:21,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:40:21,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:21,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:40:21,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 11:40:21,599 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:40:21,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 11:40:21,662 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:40:21,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 11:40:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2022-11-16 11:40:21,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:40:21,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686889204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:21,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:40:21,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 11:40:21,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456123973] [2022-11-16 11:40:21,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:21,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:21,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:21,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:21,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:40:21,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 404 [2022-11-16 11:40:21,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 467 transitions, 1418 flow. Second operand has 6 states, 6 states have (on average 234.83333333333334) internal successors, (1409), 6 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:21,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:21,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 404 [2022-11-16 11:40:21,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:24,860 INFO L130 PetriNetUnfolder]: 1278/4829 cut-off events. [2022-11-16 11:40:24,860 INFO L131 PetriNetUnfolder]: For 1274/1373 co-relation queries the response was YES. [2022-11-16 11:40:24,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9401 conditions, 4829 events. 1278/4829 cut-off events. For 1274/1373 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 27893 event pairs, 859 based on Foata normal form. 0/4418 useless extension candidates. Maximal degree in co-relation 8214. Up to 3042 conditions per place. [2022-11-16 11:40:24,894 INFO L137 encePairwiseOnDemand]: 398/404 looper letters, 224 selfloop transitions, 5 changer transitions 0/466 dead transitions. [2022-11-16 11:40:24,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 466 transitions, 1874 flow [2022-11-16 11:40:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1482 transitions. [2022-11-16 11:40:24,900 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6113861386138614 [2022-11-16 11:40:24,900 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1482 transitions. [2022-11-16 11:40:24,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1482 transitions. [2022-11-16 11:40:24,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:24,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1482 transitions. [2022-11-16 11:40:24,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:24,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:24,912 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:24,913 INFO L175 Difference]: Start difference. First operand has 428 places, 467 transitions, 1418 flow. Second operand 6 states and 1482 transitions. [2022-11-16 11:40:24,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 466 transitions, 1874 flow [2022-11-16 11:40:24,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 466 transitions, 1850 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:40:24,929 INFO L231 Difference]: Finished difference. Result has 426 places, 466 transitions, 1402 flow [2022-11-16 11:40:24,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1402, PETRI_PLACES=426, PETRI_TRANSITIONS=466} [2022-11-16 11:40:24,931 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 24 predicate places. [2022-11-16 11:40:24,931 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 466 transitions, 1402 flow [2022-11-16 11:40:24,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.83333333333334) internal successors, (1409), 6 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:24,932 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:24,933 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:24,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:25,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:25,141 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:25,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:25,141 INFO L85 PathProgramCache]: Analyzing trace with hash 583949512, now seen corresponding path program 1 times [2022-11-16 11:40:25,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:25,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770744283] [2022-11-16 11:40:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:25,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:28,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770744283] [2022-11-16 11:40:28,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770744283] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:40:28,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056574617] [2022-11-16 11:40:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:28,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:28,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:40:28,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:40:28,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:40:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:29,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 3577 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:40:29,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:40:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:31,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:40:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:40:32,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056574617] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:40:32,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:40:32,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 11:40:32,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108785370] [2022-11-16 11:40:32,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:40:32,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:40:32,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:32,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:40:32,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:40:32,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 404 [2022-11-16 11:40:32,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 466 transitions, 1402 flow. Second operand has 23 states, 23 states have (on average 384.6521739130435) internal successors, (8847), 23 states have internal predecessors, (8847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:32,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:32,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 404 [2022-11-16 11:40:32,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:34,669 INFO L130 PetriNetUnfolder]: 119/2275 cut-off events. [2022-11-16 11:40:34,670 INFO L131 PetriNetUnfolder]: For 232/245 co-relation queries the response was YES. [2022-11-16 11:40:34,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3060 conditions, 2275 events. 119/2275 cut-off events. For 232/245 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6244 event pairs, 0 based on Foata normal form. 3/2205 useless extension candidates. Maximal degree in co-relation 1695. Up to 173 conditions per place. [2022-11-16 11:40:34,681 INFO L137 encePairwiseOnDemand]: 398/404 looper letters, 145 selfloop transitions, 30 changer transitions 0/600 dead transitions. [2022-11-16 11:40:34,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 600 transitions, 2108 flow [2022-11-16 11:40:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:40:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:40:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11488 transitions. [2022-11-16 11:40:34,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9478547854785478 [2022-11-16 11:40:34,705 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 11488 transitions. [2022-11-16 11:40:34,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 11488 transitions. [2022-11-16 11:40:34,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:34,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 11488 transitions. [2022-11-16 11:40:34,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 382.93333333333334) internal successors, (11488), 30 states have internal predecessors, (11488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:34,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 404.0) internal successors, (12524), 31 states have internal predecessors, (12524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:34,758 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 404.0) internal successors, (12524), 31 states have internal predecessors, (12524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:34,759 INFO L175 Difference]: Start difference. First operand has 426 places, 466 transitions, 1402 flow. Second operand 30 states and 11488 transitions. [2022-11-16 11:40:34,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 600 transitions, 2108 flow [2022-11-16 11:40:34,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 600 transitions, 2098 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:40:34,774 INFO L231 Difference]: Finished difference. Result has 454 places, 476 transitions, 1544 flow [2022-11-16 11:40:34,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1544, PETRI_PLACES=454, PETRI_TRANSITIONS=476} [2022-11-16 11:40:34,777 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 52 predicate places. [2022-11-16 11:40:34,777 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 476 transitions, 1544 flow [2022-11-16 11:40:34,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 384.6521739130435) internal successors, (8847), 23 states have internal predecessors, (8847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:34,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:34,781 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:34,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:40:35,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:40:35,001 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1482127840, now seen corresponding path program 2 times [2022-11-16 11:40:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:35,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416803373] [2022-11-16 11:40:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:35,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-16 11:40:39,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:39,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416803373] [2022-11-16 11:40:39,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416803373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:39,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:39,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:39,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302675635] [2022-11-16 11:40:39,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:39,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:40:39,947 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 404 [2022-11-16 11:40:39,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 476 transitions, 1544 flow. Second operand has 6 states, 6 states have (on average 245.16666666666666) internal successors, (1471), 6 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:39,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:39,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 404 [2022-11-16 11:40:39,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:43,681 INFO L130 PetriNetUnfolder]: 1524/5638 cut-off events. [2022-11-16 11:40:43,682 INFO L131 PetriNetUnfolder]: For 1476/1582 co-relation queries the response was YES. [2022-11-16 11:40:43,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11013 conditions, 5638 events. 1524/5638 cut-off events. For 1476/1582 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31673 event pairs, 624 based on Foata normal form. 16/5233 useless extension candidates. Maximal degree in co-relation 9327. Up to 3064 conditions per place. [2022-11-16 11:40:43,718 INFO L137 encePairwiseOnDemand]: 381/404 looper letters, 301 selfloop transitions, 130 changer transitions 0/685 dead transitions. [2022-11-16 11:40:43,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 685 transitions, 3200 flow [2022-11-16 11:40:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1666 transitions. [2022-11-16 11:40:43,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6872937293729373 [2022-11-16 11:40:43,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1666 transitions. [2022-11-16 11:40:43,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1666 transitions. [2022-11-16 11:40:43,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:43,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1666 transitions. [2022-11-16 11:40:43,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.6666666666667) internal successors, (1666), 6 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:43,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:43,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:43,732 INFO L175 Difference]: Start difference. First operand has 454 places, 476 transitions, 1544 flow. Second operand 6 states and 1666 transitions. [2022-11-16 11:40:43,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 685 transitions, 3200 flow [2022-11-16 11:40:43,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 685 transitions, 3154 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 11:40:43,751 INFO L231 Difference]: Finished difference. Result has 446 places, 605 transitions, 2726 flow [2022-11-16 11:40:43,752 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=1498, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2726, PETRI_PLACES=446, PETRI_TRANSITIONS=605} [2022-11-16 11:40:43,753 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 44 predicate places. [2022-11-16 11:40:43,753 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 605 transitions, 2726 flow [2022-11-16 11:40:43,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.16666666666666) internal successors, (1471), 6 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:43,754 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:43,754 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:43,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:40:43,755 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:43,756 INFO L85 PathProgramCache]: Analyzing trace with hash 334127972, now seen corresponding path program 1 times [2022-11-16 11:40:43,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:43,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791659566] [2022-11-16 11:40:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-16 11:40:48,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:48,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791659566] [2022-11-16 11:40:48,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791659566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:48,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:48,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:48,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337307344] [2022-11-16 11:40:48,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:48,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:48,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:48,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:48,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:40:48,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 404 [2022-11-16 11:40:48,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 605 transitions, 2726 flow. Second operand has 6 states, 6 states have (on average 243.66666666666666) internal successors, (1462), 6 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:48,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:48,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 404 [2022-11-16 11:40:48,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:53,662 INFO L130 PetriNetUnfolder]: 1637/6439 cut-off events. [2022-11-16 11:40:53,662 INFO L131 PetriNetUnfolder]: For 3884/4155 co-relation queries the response was YES. [2022-11-16 11:40:53,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14024 conditions, 6439 events. 1637/6439 cut-off events. For 3884/4155 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40635 event pairs, 508 based on Foata normal form. 8/6075 useless extension candidates. Maximal degree in co-relation 12355. Up to 3327 conditions per place. [2022-11-16 11:40:53,721 INFO L137 encePairwiseOnDemand]: 382/404 looper letters, 428 selfloop transitions, 129 changer transitions 5/813 dead transitions. [2022-11-16 11:40:53,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 813 transitions, 4888 flow [2022-11-16 11:40:53,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:40:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:40:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1650 transitions. [2022-11-16 11:40:53,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6806930693069307 [2022-11-16 11:40:53,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1650 transitions. [2022-11-16 11:40:53,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1650 transitions. [2022-11-16 11:40:53,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:53,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1650 transitions. [2022-11-16 11:40:53,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:53,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:53,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:53,735 INFO L175 Difference]: Start difference. First operand has 446 places, 605 transitions, 2726 flow. Second operand 6 states and 1650 transitions. [2022-11-16 11:40:53,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 813 transitions, 4888 flow [2022-11-16 11:40:53,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 813 transitions, 4888 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:40:53,766 INFO L231 Difference]: Finished difference. Result has 456 places, 732 transitions, 4192 flow [2022-11-16 11:40:53,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=2726, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4192, PETRI_PLACES=456, PETRI_TRANSITIONS=732} [2022-11-16 11:40:53,767 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 54 predicate places. [2022-11-16 11:40:53,768 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 732 transitions, 4192 flow [2022-11-16 11:40:53,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.66666666666666) internal successors, (1462), 6 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:53,768 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:53,769 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:53,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:40:53,770 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:40:53,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:53,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1637206324, now seen corresponding path program 1 times [2022-11-16 11:40:53,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:53,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931491168] [2022-11-16 11:40:53,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:53,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-16 11:40:58,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:58,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931491168] [2022-11-16 11:40:58,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931491168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:58,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:58,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:40:58,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173778089] [2022-11-16 11:40:58,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:58,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:40:58,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:40:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:40:58,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 404 [2022-11-16 11:40:58,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 732 transitions, 4192 flow. Second operand has 6 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:58,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:58,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 404 [2022-11-16 11:40:58,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:03,004 INFO L130 PetriNetUnfolder]: 1747/6597 cut-off events. [2022-11-16 11:41:03,004 INFO L131 PetriNetUnfolder]: For 5716/5744 co-relation queries the response was YES. [2022-11-16 11:41:03,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16388 conditions, 6597 events. 1747/6597 cut-off events. For 5716/5744 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40926 event pairs, 657 based on Foata normal form. 0/6292 useless extension candidates. Maximal degree in co-relation 14715. Up to 3974 conditions per place. [2022-11-16 11:41:03,063 INFO L137 encePairwiseOnDemand]: 385/404 looper letters, 495 selfloop transitions, 84 changer transitions 0/830 dead transitions. [2022-11-16 11:41:03,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 830 transitions, 5864 flow [2022-11-16 11:41:03,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:41:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1579 transitions. [2022-11-16 11:41:03,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6514026402640264 [2022-11-16 11:41:03,067 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1579 transitions. [2022-11-16 11:41:03,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1579 transitions. [2022-11-16 11:41:03,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:03,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1579 transitions. [2022-11-16 11:41:03,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 263.1666666666667) internal successors, (1579), 6 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:03,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:03,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 404.0) internal successors, (2828), 7 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:03,082 INFO L175 Difference]: Start difference. First operand has 456 places, 732 transitions, 4192 flow. Second operand 6 states and 1579 transitions. [2022-11-16 11:41:03,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 830 transitions, 5864 flow [2022-11-16 11:41:03,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 830 transitions, 5610 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-16 11:41:03,131 INFO L231 Difference]: Finished difference. Result has 465 places, 803 transitions, 4728 flow [2022-11-16 11:41:03,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=3944, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4728, PETRI_PLACES=465, PETRI_TRANSITIONS=803} [2022-11-16 11:41:03,132 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 63 predicate places. [2022-11-16 11:41:03,133 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 803 transitions, 4728 flow [2022-11-16 11:41:03,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.5) internal successors, (1449), 6 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:03,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:03,134 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:03,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:41:03,135 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:41:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:03,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1222097177, now seen corresponding path program 1 times [2022-11-16 11:41:03,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:03,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562318298] [2022-11-16 11:41:03,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:03,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 205 proven. 1894 refuted. 0 times theorem prover too weak. 2681 trivial. 0 not checked. [2022-11-16 11:42:06,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:06,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562318298] [2022-11-16 11:42:06,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562318298] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:42:06,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125582780] [2022-11-16 11:42:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:06,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:06,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:06,545 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:06,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:42:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:12,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 174 conjunts are in the unsatisfiable core [2022-11-16 11:42:12,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:12,827 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:42:12,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:42:13,002 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:42:13,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:42:13,340 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:42:13,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:42:13,939 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:42:13,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:42:15,415 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:42:15,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:42:16,018 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:42:16,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:42:17,359 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:42:17,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:42:18,018 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-16 11:42:18,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 11:42:19,306 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-16 11:42:19,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 11:42:20,047 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-16 11:42:20,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 11:42:21,402 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-11-16 11:42:21,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 11:42:22,246 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:42:22,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:42:23,870 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:23,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:24,919 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:24,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:27,030 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:27,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:28,344 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:28,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:30,930 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:30,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:32,542 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:32,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:35,934 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:35,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:37,410 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:42:37,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:42:39,827 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 11:42:39,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 42 [2022-11-16 11:42:40,555 INFO L321 Elim1Store]: treesize reduction 40, result has 68.0 percent of original size [2022-11-16 11:42:40,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 124 [2022-11-16 11:42:50,821 INFO L321 Elim1Store]: treesize reduction 4, result has 95.1 percent of original size [2022-11-16 11:42:50,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 48 treesize of output 114 [2022-11-16 11:42:51,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:42:51,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 11:42:51,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:42:51,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 11:42:51,707 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:42:51,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 11:42:51,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2022-11-16 11:42:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 2772 proven. 468 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-11-16 11:42:51,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:42:51,999 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)))) is different from false [2022-11-16 11:42:52,063 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (let ((.cse2 (+ |c_~#slot~0.offset| 3 .cse1))) (let ((.cse0 (store |c_#race| |c_~#slot~0.base| (store (select |c_#race| |c_~#slot~0.base|) .cse2 0)))) (and (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse1)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) .cse2) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse1)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse1 1)) 0)))))) is different from false [2022-11-16 11:42:52,107 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (let ((.cse3 (+ |c_~#slot~0.offset| 2 .cse2)) (.cse1 (+ |c_~#slot~0.offset| 3 .cse2))) (let ((.cse0 (store |c_#race| |c_~#slot~0.base| (store (store (select |c_#race| |c_~#slot~0.base|) .cse3 0) .cse1 0)))) (and (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) .cse1) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse2)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse2 1)) 0)) (forall ((v_ArrVal_13214 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_13214) |c_~#slot~0.base|) .cse3) 0)))))) is different from false [2022-11-16 11:42:59,999 INFO L321 Elim1Store]: treesize reduction 39, result has 20.4 percent of original size [2022-11-16 11:42:59,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 35 [2022-11-16 11:43:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 3104 proven. 0 refuted. 0 times theorem prover too weak. 1676 trivial. 0 not checked. [2022-11-16 11:43:00,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125582780] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:43:00,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:43:00,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [26, 34] total 66 [2022-11-16 11:43:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873133904] [2022-11-16 11:43:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:00,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:43:00,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:43:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=609, Invalid=3432, Unknown=3, NotChecked=378, Total=4422 [2022-11-16 11:43:00,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 404 [2022-11-16 11:43:00,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 803 transitions, 4728 flow. Second operand has 18 states, 18 states have (on average 200.22222222222223) internal successors, (3604), 18 states have internal predecessors, (3604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:00,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:43:00,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 404 [2022-11-16 11:43:00,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:43:20,919 WARN L233 SmtUtils]: Spent 18.40s on a formula simplification. DAG size of input: 41 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:43:41,670 WARN L233 SmtUtils]: Spent 20.49s on a formula simplification. DAG size of input: 38 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 11:43:47,203 INFO L130 PetriNetUnfolder]: 2570/8642 cut-off events. [2022-11-16 11:43:47,203 INFO L131 PetriNetUnfolder]: For 9425/9506 co-relation queries the response was YES. [2022-11-16 11:43:47,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23988 conditions, 8642 events. 2570/8642 cut-off events. For 9425/9506 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 58957 event pairs, 412 based on Foata normal form. 102/8419 useless extension candidates. Maximal degree in co-relation 22262. Up to 2615 conditions per place. [2022-11-16 11:43:47,282 INFO L137 encePairwiseOnDemand]: 350/404 looper letters, 734 selfloop transitions, 299 changer transitions 8/1259 dead transitions. [2022-11-16 11:43:47,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 1259 transitions, 9336 flow [2022-11-16 11:43:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:43:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:43:47,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5077 transitions. [2022-11-16 11:43:47,291 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5236179867986799 [2022-11-16 11:43:47,291 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5077 transitions. [2022-11-16 11:43:47,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5077 transitions. [2022-11-16 11:43:47,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:43:47,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5077 transitions. [2022-11-16 11:43:47,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 211.54166666666666) internal successors, (5077), 24 states have internal predecessors, (5077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:47,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 404.0) internal successors, (10100), 25 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:47,315 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 404.0) internal successors, (10100), 25 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:47,316 INFO L175 Difference]: Start difference. First operand has 465 places, 803 transitions, 4728 flow. Second operand 24 states and 5077 transitions. [2022-11-16 11:43:47,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 1259 transitions, 9336 flow [2022-11-16 11:43:47,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 1259 transitions, 9264 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-16 11:43:47,425 INFO L231 Difference]: Finished difference. Result has 499 places, 980 transitions, 7033 flow [2022-11-16 11:43:47,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=4674, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=7033, PETRI_PLACES=499, PETRI_TRANSITIONS=980} [2022-11-16 11:43:47,426 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 97 predicate places. [2022-11-16 11:43:47,426 INFO L495 AbstractCegarLoop]: Abstraction has has 499 places, 980 transitions, 7033 flow [2022-11-16 11:43:47,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 200.22222222222223) internal successors, (3604), 18 states have internal predecessors, (3604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:43:47,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:43:47,429 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:47,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:43:47,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 11:43:47,642 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:43:47,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1681994943, now seen corresponding path program 2 times [2022-11-16 11:43:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:47,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442856604] [2022-11-16 11:43:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 314 proven. 1669 refuted. 0 times theorem prover too weak. 2797 trivial. 0 not checked. [2022-11-16 11:44:39,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:39,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442856604] [2022-11-16 11:44:39,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442856604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:44:39,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325294153] [2022-11-16 11:44:39,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:44:39,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:44:39,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:44:39,107 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:44:39,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:44:52,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:44:52,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:44:52,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 187 conjunts are in the unsatisfiable core [2022-11-16 11:44:52,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:44:52,434 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:52,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:52,650 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:52,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:53,364 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:53,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:53,552 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:53,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:54,033 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:54,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:54,256 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:54,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:54,794 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:54,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:55,058 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:55,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:55,620 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:55,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:55,895 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 11:44:55,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 11:44:57,354 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 11:44:57,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 11:44:58,740 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:44:58,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:01,417 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:01,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:03,052 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:03,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:06,310 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:06,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:08,282 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:08,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:11,077 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:11,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:12,051 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:12,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:14,121 INFO L321 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2022-11-16 11:45:14,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2022-11-16 11:45:15,542 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-11-16 11:45:15,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2022-11-16 11:45:19,226 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 11:45:19,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 42 [2022-11-16 11:45:20,078 INFO L321 Elim1Store]: treesize reduction 40, result has 68.0 percent of original size [2022-11-16 11:45:20,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 124 [2022-11-16 11:45:32,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:45:32,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 11:45:32,591 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:32,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 11:45:32,946 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:32,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 11:45:34,110 INFO L321 Elim1Store]: treesize reduction 4, result has 95.1 percent of original size [2022-11-16 11:45:34,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 48 treesize of output 114 [2022-11-16 11:45:35,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2022-11-16 11:45:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 2164 proven. 787 refuted. 0 times theorem prover too weak. 1829 trivial. 0 not checked. [2022-11-16 11:45:35,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:45:35,270 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)))) is different from false [2022-11-16 11:45:35,340 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_#t~malloc30#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)))) is different from false [2022-11-16 11:45:37,102 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:37,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 67 [2022-11-16 11:45:37,114 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:45:37,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 39 [2022-11-16 11:45:37,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2022-11-16 11:45:37,139 INFO L321 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2022-11-16 11:45:37,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 1 [2022-11-16 11:45:37,152 INFO L321 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2022-11-16 11:45:37,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2022-11-16 11:46:34,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:46:34,136 INFO L321 Elim1Store]: treesize reduction 39, result has 20.4 percent of original size [2022-11-16 11:46:34,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 35 [2022-11-16 11:46:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 2936 proven. 0 refuted. 0 times theorem prover too weak. 1844 trivial. 0 not checked. [2022-11-16 11:46:34,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325294153] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:46:34,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:46:34,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [34, 35] total 77 [2022-11-16 11:46:34,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939643371] [2022-11-16 11:46:34,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:34,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:46:34,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:34,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:46:34,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=4992, Unknown=3, NotChecked=298, Total=6006 [2022-11-16 11:46:34,162 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 404 [2022-11-16 11:46:34,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 980 transitions, 7033 flow. Second operand has 16 states, 16 states have (on average 205.5) internal successors, (3288), 16 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:34,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:46:34,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 404 [2022-11-16 11:46:34,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:46:35,822 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0 1)) 0)) (or (not (= (select |c_#valid| |c_~#slot~0.base|) 0)) (not (< |c_~#slot~0.base| |c_#StackHeapBarrier|))) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 2 .cse0)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| .cse0)) 0)) (forall ((v_ArrVal_15947 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_15947) |c_~#slot~0.base|) (+ |c_~#slot~0.offset| 3 .cse0)) 0)))) is different from false [2022-11-16 11:46:44,017 INFO L130 PetriNetUnfolder]: 2969/9491 cut-off events. [2022-11-16 11:46:44,017 INFO L131 PetriNetUnfolder]: For 22887/23192 co-relation queries the response was YES. [2022-11-16 11:46:44,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35981 conditions, 9491 events. 2969/9491 cut-off events. For 22887/23192 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 66485 event pairs, 937 based on Foata normal form. 171/9280 useless extension candidates. Maximal degree in co-relation 35182. Up to 4988 conditions per place. [2022-11-16 11:46:44,104 INFO L137 encePairwiseOnDemand]: 350/404 looper letters, 801 selfloop transitions, 231 changer transitions 1/1255 dead transitions. [2022-11-16 11:46:44,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 1255 transitions, 11025 flow [2022-11-16 11:46:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:46:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 11:46:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3737 transitions. [2022-11-16 11:46:44,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2022-11-16 11:46:44,112 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3737 transitions. [2022-11-16 11:46:44,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3737 transitions. [2022-11-16 11:46:44,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:46:44,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3737 transitions. [2022-11-16 11:46:44,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 219.8235294117647) internal successors, (3737), 17 states have internal predecessors, (3737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:44,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 404.0) internal successors, (7272), 18 states have internal predecessors, (7272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:44,129 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 404.0) internal successors, (7272), 18 states have internal predecessors, (7272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:44,129 INFO L175 Difference]: Start difference. First operand has 499 places, 980 transitions, 7033 flow. Second operand 17 states and 3737 transitions. [2022-11-16 11:46:44,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 1255 transitions, 11025 flow [2022-11-16 11:46:44,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 1255 transitions, 10814 flow, removed 105 selfloop flow, removed 1 redundant places. [2022-11-16 11:46:44,311 INFO L231 Difference]: Finished difference. Result has 524 places, 1121 transitions, 9038 flow [2022-11-16 11:46:44,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=6834, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=980, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=768, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9038, PETRI_PLACES=524, PETRI_TRANSITIONS=1121} [2022-11-16 11:46:44,313 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 122 predicate places. [2022-11-16 11:46:44,313 INFO L495 AbstractCegarLoop]: Abstraction has has 524 places, 1121 transitions, 9038 flow [2022-11-16 11:46:44,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 205.5) internal successors, (3288), 16 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:46:44,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:46:44,366 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:44,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:46:44,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 11:46:44,567 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-16 11:46:44,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:44,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1442171833, now seen corresponding path program 3 times [2022-11-16 11:46:44,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:44,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645495185] [2022-11-16 11:46:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:44,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 56 proven. 1287 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2022-11-16 11:47:20,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:20,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645495185] [2022-11-16 11:47:20,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645495185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:47:20,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047383514] [2022-11-16 11:47:20,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:47:20,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:47:20,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:47:20,694 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:47:20,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902bc1c1-3cab-4124-bc9f-a5d262dbe538/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process