./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:09,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:09,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:09,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:09,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:09,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:09,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:09,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:09,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:09,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:09,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:09,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:09,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:09,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:09,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:09,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:09,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:09,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:09,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:09,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:09,997 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:10,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:10,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:10,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:10,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:10,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:10,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:10,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:10,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:10,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:10,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:10,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:10,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:10,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:10,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:10,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:10,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:10,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:10,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:10,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:10,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:10,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:10,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:10,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:10,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:10,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:10,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:10,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:10,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:10,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:10,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:10,054 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:10,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:10,055 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:10,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:10,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:10,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:10,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:10,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:10,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:10,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:10,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:10,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:10,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:10,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:10,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:10,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:10,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:10,058 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:10,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:10,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:10,059 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b [2022-04-18 16:36:10,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:10,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:10,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:10,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:10,292 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:10,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c [2022-04-18 16:36:10,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05eac71b4/a699b264f81e4af9810c25d4d4c4fcf5/FLAGf6b235f6c [2022-04-18 16:36:10,725 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:10,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c [2022-04-18 16:36:10,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05eac71b4/a699b264f81e4af9810c25d4d4c4fcf5/FLAGf6b235f6c [2022-04-18 16:36:10,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05eac71b4/a699b264f81e4af9810c25d4d4c4fcf5 [2022-04-18 16:36:10,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:10,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:10,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:10,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:10,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:10,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:10" (1/1) ... [2022-04-18 16:36:10,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b27d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:10, skipping insertion in model container [2022-04-18 16:36:10,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:10" (1/1) ... [2022-04-18 16:36:10,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:10,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:10,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2022-04-18 16:36:10,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:10,970 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:11,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2022-04-18 16:36:11,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:11,023 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:11,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11 WrapperNode [2022-04-18 16:36:11,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:11,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:11,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:11,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:11,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,076 INFO L137 Inliner]: procedures = 26, calls = 73, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 495 [2022-04-18 16:36:11,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:11,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:11,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:11,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:11,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:11,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:11,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:11,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:11,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (1/1) ... [2022-04-18 16:36:11,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:11,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:11,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:36:11,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:36:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:36:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:36:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:36:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:36:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:36:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:36:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:11,241 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:36:11,338 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:11,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:11,768 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:12,153 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:12,154 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-04-18 16:36:12,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:12 BoogieIcfgContainer [2022-04-18 16:36:12,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:12,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:12,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:12,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:12,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:10" (1/3) ... [2022-04-18 16:36:12,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440a0af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:12, skipping insertion in model container [2022-04-18 16:36:12,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:11" (2/3) ... [2022-04-18 16:36:12,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440a0af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:12, skipping insertion in model container [2022-04-18 16:36:12,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:12" (3/3) ... [2022-04-18 16:36:12,167 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2022-04-18 16:36:12,173 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:12,174 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:12,174 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2022-04-18 16:36:12,174 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:12,294 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 16:36:12,336 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:12,342 INFO L340 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 [2022-04-18 16:36:12,343 INFO L341 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2022-04-18 16:36:12,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 400 transitions, 832 flow [2022-04-18 16:36:12,483 INFO L129 PetriNetUnfolder]: 18/396 cut-off events. [2022-04-18 16:36:12,483 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:36:12,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 396 events. 18/396 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 467 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 333. Up to 3 conditions per place. [2022-04-18 16:36:12,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 400 transitions, 832 flow [2022-04-18 16:36:12,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 374 transitions, 772 flow [2022-04-18 16:36:12,504 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2022-04-18 16:36:12,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:12,506 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:12,506 INFO L255 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] [2022-04-18 16:36:12,507 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:12,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2014585814, now seen corresponding path program 1 times [2022-04-18 16:36:12,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:12,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743643471] [2022-04-18 16:36:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:12,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:12,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:12,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:12,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743643471] [2022-04-18 16:36:12,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743643471] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:12,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:12,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:12,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946766465] [2022-04-18 16:36:12,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:12,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:12,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:12,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:12,735 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 400 [2022-04-18 16:36:12,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 374 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:12,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:12,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 400 [2022-04-18 16:36:12,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:13,240 INFO L129 PetriNetUnfolder]: 1092/2414 cut-off events. [2022-04-18 16:36:13,241 INFO L130 PetriNetUnfolder]: For 389/492 co-relation queries the response was YES. [2022-04-18 16:36:13,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4317 conditions, 2414 events. 1092/2414 cut-off events. For 389/492 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 15190 event pairs, 886 based on Foata normal form. 262/2436 useless extension candidates. Maximal degree in co-relation 3937. Up to 1531 conditions per place. [2022-04-18 16:36:13,260 INFO L132 encePairwiseOnDemand]: 338/400 looper letters, 32 selfloop transitions, 2 changer transitions 6/314 dead transitions. [2022-04-18 16:36:13,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 314 transitions, 720 flow [2022-04-18 16:36:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2022-04-18 16:36:13,272 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8383333333333334 [2022-04-18 16:36:13,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1006 transitions. [2022-04-18 16:36:13,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1006 transitions. [2022-04-18 16:36:13,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:13,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1006 transitions. [2022-04-18 16:36:13,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,297 INFO L186 Difference]: Start difference. First operand has 370 places, 374 transitions, 772 flow. Second operand 3 states and 1006 transitions. [2022-04-18 16:36:13,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 314 transitions, 720 flow [2022-04-18 16:36:13,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 314 transitions, 704 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-04-18 16:36:13,319 INFO L242 Difference]: Finished difference. Result has 315 places, 308 transitions, 628 flow [2022-04-18 16:36:13,321 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=315, PETRI_TRANSITIONS=308} [2022-04-18 16:36:13,324 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -55 predicate places. [2022-04-18 16:36:13,324 INFO L478 AbstractCegarLoop]: Abstraction has has 315 places, 308 transitions, 628 flow [2022-04-18 16:36:13,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,325 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:13,325 INFO L255 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] [2022-04-18 16:36:13,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:13,326 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:13,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1231959817, now seen corresponding path program 1 times [2022-04-18 16:36:13,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:13,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923588751] [2022-04-18 16:36:13,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:13,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:13,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:13,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923588751] [2022-04-18 16:36:13,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923588751] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:13,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:13,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:13,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939868798] [2022-04-18 16:36:13,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:13,362 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:13,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:13,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:13,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:13,364 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 400 [2022-04-18 16:36:13,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 308 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:13,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 400 [2022-04-18 16:36:13,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:13,693 INFO L129 PetriNetUnfolder]: 921/2093 cut-off events. [2022-04-18 16:36:13,694 INFO L130 PetriNetUnfolder]: For 52/136 co-relation queries the response was YES. [2022-04-18 16:36:13,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 2093 events. 921/2093 cut-off events. For 52/136 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12778 event pairs, 743 based on Foata normal form. 0/1942 useless extension candidates. Maximal degree in co-relation 3477. Up to 1288 conditions per place. [2022-04-18 16:36:13,707 INFO L132 encePairwiseOnDemand]: 396/400 looper letters, 27 selfloop transitions, 1 changer transitions 0/305 dead transitions. [2022-04-18 16:36:13,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 305 transitions, 678 flow [2022-04-18 16:36:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2022-04-18 16:36:13,710 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7933333333333333 [2022-04-18 16:36:13,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2022-04-18 16:36:13,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2022-04-18 16:36:13,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:13,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2022-04-18 16:36:13,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,715 INFO L186 Difference]: Start difference. First operand has 315 places, 308 transitions, 628 flow. Second operand 3 states and 952 transitions. [2022-04-18 16:36:13,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 305 transitions, 678 flow [2022-04-18 16:36:13,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 305 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:13,719 INFO L242 Difference]: Finished difference. Result has 306 places, 305 transitions, 620 flow [2022-04-18 16:36:13,720 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=306, PETRI_TRANSITIONS=305} [2022-04-18 16:36:13,720 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -64 predicate places. [2022-04-18 16:36:13,721 INFO L478 AbstractCegarLoop]: Abstraction has has 306 places, 305 transitions, 620 flow [2022-04-18 16:36:13,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,721 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:13,722 INFO L255 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] [2022-04-18 16:36:13,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:13,722 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:13,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1126587739, now seen corresponding path program 1 times [2022-04-18 16:36:13,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:13,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083474071] [2022-04-18 16:36:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:13,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:13,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:13,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083474071] [2022-04-18 16:36:13,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083474071] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:13,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:13,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137175892] [2022-04-18 16:36:13,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:13,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:13,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:13,797 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2022-04-18 16:36:13,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 305 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:13,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:13,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2022-04-18 16:36:13,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:14,018 INFO L129 PetriNetUnfolder]: 677/1566 cut-off events. [2022-04-18 16:36:14,018 INFO L130 PetriNetUnfolder]: For 91/153 co-relation queries the response was YES. [2022-04-18 16:36:14,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2572 conditions, 1566 events. 677/1566 cut-off events. For 91/153 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8386 event pairs, 457 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 2531. Up to 922 conditions per place. [2022-04-18 16:36:14,031 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 26 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2022-04-18 16:36:14,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 304 transitions, 674 flow [2022-04-18 16:36:14,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2022-04-18 16:36:14,033 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7991666666666667 [2022-04-18 16:36:14,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:14,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,039 INFO L186 Difference]: Start difference. First operand has 306 places, 305 transitions, 620 flow. Second operand 3 states and 959 transitions. [2022-04-18 16:36:14,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 304 transitions, 674 flow [2022-04-18 16:36:14,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 304 transitions, 673 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:14,043 INFO L242 Difference]: Finished difference. Result has 306 places, 304 transitions, 621 flow [2022-04-18 16:36:14,044 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=621, PETRI_PLACES=306, PETRI_TRANSITIONS=304} [2022-04-18 16:36:14,044 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -64 predicate places. [2022-04-18 16:36:14,044 INFO L478 AbstractCegarLoop]: Abstraction has has 306 places, 304 transitions, 621 flow [2022-04-18 16:36:14,045 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,045 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:14,045 INFO L255 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] [2022-04-18 16:36:14,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:14,046 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:14,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1022833663, now seen corresponding path program 1 times [2022-04-18 16:36:14,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:14,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575218555] [2022-04-18 16:36:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:14,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:14,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:14,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575218555] [2022-04-18 16:36:14,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575218555] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:14,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:14,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:14,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583237445] [2022-04-18 16:36:14,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:14,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:14,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:14,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:14,083 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2022-04-18 16:36:14,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 304 transitions, 621 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:14,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2022-04-18 16:36:14,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:14,293 INFO L129 PetriNetUnfolder]: 677/1565 cut-off events. [2022-04-18 16:36:14,293 INFO L130 PetriNetUnfolder]: For 91/153 co-relation queries the response was YES. [2022-04-18 16:36:14,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2573 conditions, 1565 events. 677/1565 cut-off events. For 91/153 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8424 event pairs, 457 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 2532. Up to 922 conditions per place. [2022-04-18 16:36:14,303 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 26 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-04-18 16:36:14,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 303 transitions, 675 flow [2022-04-18 16:36:14,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:14,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2022-04-18 16:36:14,306 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7991666666666667 [2022-04-18 16:36:14,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:14,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,311 INFO L186 Difference]: Start difference. First operand has 306 places, 304 transitions, 621 flow. Second operand 3 states and 959 transitions. [2022-04-18 16:36:14,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 303 transitions, 675 flow [2022-04-18 16:36:14,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 303 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:14,315 INFO L242 Difference]: Finished difference. Result has 305 places, 303 transitions, 619 flow [2022-04-18 16:36:14,315 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=619, PETRI_PLACES=305, PETRI_TRANSITIONS=303} [2022-04-18 16:36:14,316 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -65 predicate places. [2022-04-18 16:36:14,316 INFO L478 AbstractCegarLoop]: Abstraction has has 305 places, 303 transitions, 619 flow [2022-04-18 16:36:14,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,317 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:14,317 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:14,317 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:14,317 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1338387911, now seen corresponding path program 1 times [2022-04-18 16:36:14,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:14,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397948455] [2022-04-18 16:36:14,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:14,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:14,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397948455] [2022-04-18 16:36:14,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397948455] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:14,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:14,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:14,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973701170] [2022-04-18 16:36:14,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:14,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:14,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:14,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:14,352 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2022-04-18 16:36:14,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 303 transitions, 619 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:14,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2022-04-18 16:36:14,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:14,536 INFO L129 PetriNetUnfolder]: 677/1564 cut-off events. [2022-04-18 16:36:14,537 INFO L130 PetriNetUnfolder]: For 91/153 co-relation queries the response was YES. [2022-04-18 16:36:14,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2572 conditions, 1564 events. 677/1564 cut-off events. For 91/153 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8416 event pairs, 457 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 2531. Up to 922 conditions per place. [2022-04-18 16:36:14,551 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 26 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2022-04-18 16:36:14,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 302 transitions, 673 flow [2022-04-18 16:36:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:14,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2022-04-18 16:36:14,554 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7991666666666667 [2022-04-18 16:36:14,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:14,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,559 INFO L186 Difference]: Start difference. First operand has 305 places, 303 transitions, 619 flow. Second operand 3 states and 959 transitions. [2022-04-18 16:36:14,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 302 transitions, 673 flow [2022-04-18 16:36:14,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 302 transitions, 669 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:14,564 INFO L242 Difference]: Finished difference. Result has 304 places, 302 transitions, 617 flow [2022-04-18 16:36:14,565 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=617, PETRI_PLACES=304, PETRI_TRANSITIONS=302} [2022-04-18 16:36:14,566 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -66 predicate places. [2022-04-18 16:36:14,567 INFO L478 AbstractCegarLoop]: Abstraction has has 304 places, 302 transitions, 617 flow [2022-04-18 16:36:14,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,568 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:14,568 INFO L255 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] [2022-04-18 16:36:14,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:14,569 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:14,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:14,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1650166299, now seen corresponding path program 1 times [2022-04-18 16:36:14,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:14,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459360482] [2022-04-18 16:36:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:14,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:14,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:14,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459360482] [2022-04-18 16:36:14,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459360482] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:14,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:14,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:14,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812358007] [2022-04-18 16:36:14,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:14,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:14,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:14,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:14,638 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2022-04-18 16:36:14,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 302 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:14,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2022-04-18 16:36:14,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:14,813 INFO L129 PetriNetUnfolder]: 677/1563 cut-off events. [2022-04-18 16:36:14,813 INFO L130 PetriNetUnfolder]: For 91/153 co-relation queries the response was YES. [2022-04-18 16:36:14,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2571 conditions, 1563 events. 677/1563 cut-off events. For 91/153 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8378 event pairs, 457 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 2530. Up to 922 conditions per place. [2022-04-18 16:36:14,824 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 26 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-04-18 16:36:14,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 301 transitions, 671 flow [2022-04-18 16:36:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2022-04-18 16:36:14,826 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7991666666666667 [2022-04-18 16:36:14,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:14,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2022-04-18 16:36:14,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,831 INFO L186 Difference]: Start difference. First operand has 304 places, 302 transitions, 617 flow. Second operand 3 states and 959 transitions. [2022-04-18 16:36:14,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 301 transitions, 671 flow [2022-04-18 16:36:14,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 301 transitions, 667 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:14,838 INFO L242 Difference]: Finished difference. Result has 303 places, 301 transitions, 615 flow [2022-04-18 16:36:14,838 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=615, PETRI_PLACES=303, PETRI_TRANSITIONS=301} [2022-04-18 16:36:14,840 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2022-04-18 16:36:14,840 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 301 transitions, 615 flow [2022-04-18 16:36:14,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,841 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:14,841 INFO L255 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] [2022-04-18 16:36:14,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:14,842 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:14,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:14,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1413647169, now seen corresponding path program 1 times [2022-04-18 16:36:14,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:14,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091005974] [2022-04-18 16:36:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:14,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:14,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:14,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091005974] [2022-04-18 16:36:14,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091005974] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:14,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:14,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:14,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461431798] [2022-04-18 16:36:14,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:14,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:14,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:14,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:14,870 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:14,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 301 transitions, 615 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:14,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:14,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:14,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:15,070 INFO L129 PetriNetUnfolder]: 819/1881 cut-off events. [2022-04-18 16:36:15,070 INFO L130 PetriNetUnfolder]: For 118/183 co-relation queries the response was YES. [2022-04-18 16:36:15,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3101 conditions, 1881 events. 819/1881 cut-off events. For 118/183 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10587 event pairs, 163 based on Foata normal form. 1/1709 useless extension candidates. Maximal degree in co-relation 3061. Up to 782 conditions per place. [2022-04-18 16:36:15,085 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 36 selfloop transitions, 2 changer transitions 0/314 dead transitions. [2022-04-18 16:36:15,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 314 transitions, 723 flow [2022-04-18 16:36:15,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:15,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:15,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-04-18 16:36:15,087 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.815 [2022-04-18 16:36:15,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-04-18 16:36:15,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-04-18 16:36:15,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:15,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-04-18 16:36:15,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,091 INFO L186 Difference]: Start difference. First operand has 303 places, 301 transitions, 615 flow. Second operand 3 states and 978 transitions. [2022-04-18 16:36:15,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 314 transitions, 723 flow [2022-04-18 16:36:15,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 314 transitions, 719 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:15,096 INFO L242 Difference]: Finished difference. Result has 303 places, 301 transitions, 619 flow [2022-04-18 16:36:15,097 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=619, PETRI_PLACES=303, PETRI_TRANSITIONS=301} [2022-04-18 16:36:15,097 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2022-04-18 16:36:15,097 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 301 transitions, 619 flow [2022-04-18 16:36:15,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,098 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:15,098 INFO L255 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] [2022-04-18 16:36:15,098 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:15,098 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:15,099 INFO L85 PathProgramCache]: Analyzing trace with hash -189062542, now seen corresponding path program 1 times [2022-04-18 16:36:15,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:15,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571417298] [2022-04-18 16:36:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:15,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:15,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571417298] [2022-04-18 16:36:15,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571417298] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:15,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:15,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348219398] [2022-04-18 16:36:15,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:15,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:15,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:15,131 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:15,132 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 301 transitions, 619 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:15,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:15,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:15,317 INFO L129 PetriNetUnfolder]: 820/1907 cut-off events. [2022-04-18 16:36:15,317 INFO L130 PetriNetUnfolder]: For 213/285 co-relation queries the response was YES. [2022-04-18 16:36:15,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3269 conditions, 1907 events. 820/1907 cut-off events. For 213/285 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11358 event pairs, 566 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 3227. Up to 1120 conditions per place. [2022-04-18 16:36:15,329 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 24 selfloop transitions, 2 changer transitions 0/300 dead transitions. [2022-04-18 16:36:15,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 300 transitions, 669 flow [2022-04-18 16:36:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-04-18 16:36:15,331 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8041666666666667 [2022-04-18 16:36:15,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-04-18 16:36:15,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-04-18 16:36:15,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:15,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-04-18 16:36:15,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,335 INFO L186 Difference]: Start difference. First operand has 303 places, 301 transitions, 619 flow. Second operand 3 states and 965 transitions. [2022-04-18 16:36:15,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 300 transitions, 669 flow [2022-04-18 16:36:15,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 300 transitions, 667 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:15,339 INFO L242 Difference]: Finished difference. Result has 303 places, 300 transitions, 619 flow [2022-04-18 16:36:15,340 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=619, PETRI_PLACES=303, PETRI_TRANSITIONS=300} [2022-04-18 16:36:15,340 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2022-04-18 16:36:15,340 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 300 transitions, 619 flow [2022-04-18 16:36:15,341 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,341 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:15,341 INFO L255 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] [2022-04-18 16:36:15,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:15,341 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:15,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:15,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1658863805, now seen corresponding path program 1 times [2022-04-18 16:36:15,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:15,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428113952] [2022-04-18 16:36:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:15,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:15,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:15,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:15,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428113952] [2022-04-18 16:36:15,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428113952] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:15,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:15,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:15,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416388473] [2022-04-18 16:36:15,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:15,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:15,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:15,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:15,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:15,366 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:15,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 300 transitions, 619 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:15,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:15,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:15,630 INFO L129 PetriNetUnfolder]: 1013/2357 cut-off events. [2022-04-18 16:36:15,630 INFO L130 PetriNetUnfolder]: For 268/349 co-relation queries the response was YES. [2022-04-18 16:36:15,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 2357 events. 1013/2357 cut-off events. For 268/349 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 14811 event pairs, 264 based on Foata normal form. 2/2136 useless extension candidates. Maximal degree in co-relation 3942. Up to 867 conditions per place. [2022-04-18 16:36:15,645 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 38 selfloop transitions, 2 changer transitions 0/314 dead transitions. [2022-04-18 16:36:15,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 314 transitions, 736 flow [2022-04-18 16:36:15,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2022-04-18 16:36:15,647 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.815 [2022-04-18 16:36:15,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2022-04-18 16:36:15,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2022-04-18 16:36:15,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:15,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2022-04-18 16:36:15,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,652 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,652 INFO L186 Difference]: Start difference. First operand has 303 places, 300 transitions, 619 flow. Second operand 3 states and 978 transitions. [2022-04-18 16:36:15,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 314 transitions, 736 flow [2022-04-18 16:36:15,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 314 transitions, 732 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:15,656 INFO L242 Difference]: Finished difference. Result has 303 places, 300 transitions, 623 flow [2022-04-18 16:36:15,656 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=623, PETRI_PLACES=303, PETRI_TRANSITIONS=300} [2022-04-18 16:36:15,657 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2022-04-18 16:36:15,657 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 300 transitions, 623 flow [2022-04-18 16:36:15,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,657 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:15,657 INFO L255 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] [2022-04-18 16:36:15,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:15,658 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:15,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2133308045, now seen corresponding path program 1 times [2022-04-18 16:36:15,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:15,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327507773] [2022-04-18 16:36:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:15,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:15,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:15,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:15,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327507773] [2022-04-18 16:36:15,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327507773] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:15,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:15,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:15,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767403011] [2022-04-18 16:36:15,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:15,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:15,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:15,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:15,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:15,703 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:15,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 300 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:15,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:15,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:15,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:16,015 INFO L129 PetriNetUnfolder]: 1014/2429 cut-off events. [2022-04-18 16:36:16,015 INFO L130 PetriNetUnfolder]: For 409/492 co-relation queries the response was YES. [2022-04-18 16:36:16,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4266 conditions, 2429 events. 1014/2429 cut-off events. For 409/492 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16083 event pairs, 719 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4223. Up to 1390 conditions per place. [2022-04-18 16:36:16,034 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 25 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-04-18 16:36:16,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 675 flow [2022-04-18 16:36:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-04-18 16:36:16,036 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8041666666666667 [2022-04-18 16:36:16,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-04-18 16:36:16,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-04-18 16:36:16,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:16,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-04-18 16:36:16,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,040 INFO L186 Difference]: Start difference. First operand has 303 places, 300 transitions, 623 flow. Second operand 3 states and 965 transitions. [2022-04-18 16:36:16,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 675 flow [2022-04-18 16:36:16,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 299 transitions, 673 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:16,045 INFO L242 Difference]: Finished difference. Result has 303 places, 299 transitions, 623 flow [2022-04-18 16:36:16,045 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=623, PETRI_PLACES=303, PETRI_TRANSITIONS=299} [2022-04-18 16:36:16,045 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2022-04-18 16:36:16,046 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 299 transitions, 623 flow [2022-04-18 16:36:16,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,046 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:16,046 INFO L255 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] [2022-04-18 16:36:16,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:36:16,047 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:16,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:16,047 INFO L85 PathProgramCache]: Analyzing trace with hash -530077399, now seen corresponding path program 1 times [2022-04-18 16:36:16,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:16,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368014364] [2022-04-18 16:36:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:16,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:16,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:16,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368014364] [2022-04-18 16:36:16,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368014364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:16,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:16,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:16,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031981273] [2022-04-18 16:36:16,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:16,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:16,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:16,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:16,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:16,084 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 400 [2022-04-18 16:36:16,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 299 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:16,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 400 [2022-04-18 16:36:16,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:16,384 INFO L129 PetriNetUnfolder]: 1014/2428 cut-off events. [2022-04-18 16:36:16,385 INFO L130 PetriNetUnfolder]: For 408/491 co-relation queries the response was YES. [2022-04-18 16:36:16,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4205 conditions, 2428 events. 1014/2428 cut-off events. For 408/491 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16124 event pairs, 719 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4162. Up to 1398 conditions per place. [2022-04-18 16:36:16,398 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 27 selfloop transitions, 2 changer transitions 0/298 dead transitions. [2022-04-18 16:36:16,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 298 transitions, 679 flow [2022-04-18 16:36:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:16,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 958 transitions. [2022-04-18 16:36:16,400 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7983333333333333 [2022-04-18 16:36:16,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 958 transitions. [2022-04-18 16:36:16,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 958 transitions. [2022-04-18 16:36:16,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:16,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 958 transitions. [2022-04-18 16:36:16,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,404 INFO L186 Difference]: Start difference. First operand has 303 places, 299 transitions, 623 flow. Second operand 3 states and 958 transitions. [2022-04-18 16:36:16,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 298 transitions, 679 flow [2022-04-18 16:36:16,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 298 transitions, 675 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:16,407 INFO L242 Difference]: Finished difference. Result has 302 places, 298 transitions, 621 flow [2022-04-18 16:36:16,408 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=621, PETRI_PLACES=302, PETRI_TRANSITIONS=298} [2022-04-18 16:36:16,408 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -68 predicate places. [2022-04-18 16:36:16,408 INFO L478 AbstractCegarLoop]: Abstraction has has 302 places, 298 transitions, 621 flow [2022-04-18 16:36:16,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,409 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:16,409 INFO L255 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] [2022-04-18 16:36:16,409 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:36:16,409 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:16,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:16,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1060390472, now seen corresponding path program 1 times [2022-04-18 16:36:16,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:16,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452730835] [2022-04-18 16:36:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:16,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:16,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:16,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452730835] [2022-04-18 16:36:16,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452730835] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:16,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:16,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862233960] [2022-04-18 16:36:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:16,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:16,430 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:16,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 298 transitions, 621 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:16,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:16,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:16,665 INFO L129 PetriNetUnfolder]: 1014/2427 cut-off events. [2022-04-18 16:36:16,665 INFO L130 PetriNetUnfolder]: For 408/491 co-relation queries the response was YES. [2022-04-18 16:36:16,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4195 conditions, 2427 events. 1014/2427 cut-off events. For 408/491 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16014 event pairs, 719 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4153. Up to 1388 conditions per place. [2022-04-18 16:36:16,681 INFO L132 encePairwiseOnDemand]: 398/400 looper letters, 25 selfloop transitions, 1 changer transitions 0/297 dead transitions. [2022-04-18 16:36:16,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 297 transitions, 671 flow [2022-04-18 16:36:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2022-04-18 16:36:16,683 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8033333333333333 [2022-04-18 16:36:16,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 964 transitions. [2022-04-18 16:36:16,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 964 transitions. [2022-04-18 16:36:16,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:16,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 964 transitions. [2022-04-18 16:36:16,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,686 INFO L186 Difference]: Start difference. First operand has 302 places, 298 transitions, 621 flow. Second operand 3 states and 964 transitions. [2022-04-18 16:36:16,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 297 transitions, 671 flow [2022-04-18 16:36:16,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 297 transitions, 667 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:16,690 INFO L242 Difference]: Finished difference. Result has 301 places, 297 transitions, 617 flow [2022-04-18 16:36:16,690 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=617, PETRI_PLACES=301, PETRI_TRANSITIONS=297} [2022-04-18 16:36:16,691 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -69 predicate places. [2022-04-18 16:36:16,691 INFO L478 AbstractCegarLoop]: Abstraction has has 301 places, 297 transitions, 617 flow [2022-04-18 16:36:16,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,692 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:16,692 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:16,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:36:16,692 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:16,692 INFO L85 PathProgramCache]: Analyzing trace with hash -178945074, now seen corresponding path program 1 times [2022-04-18 16:36:16,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:16,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632400470] [2022-04-18 16:36:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:16,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:16,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632400470] [2022-04-18 16:36:16,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632400470] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:16,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:16,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:16,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309466969] [2022-04-18 16:36:16,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:16,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:16,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:16,722 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:16,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 297 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:16,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:16,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:16,974 INFO L129 PetriNetUnfolder]: 1014/2426 cut-off events. [2022-04-18 16:36:16,974 INFO L130 PetriNetUnfolder]: For 408/491 co-relation queries the response was YES. [2022-04-18 16:36:16,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4194 conditions, 2426 events. 1014/2426 cut-off events. For 408/491 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16011 event pairs, 719 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4151. Up to 1390 conditions per place. [2022-04-18 16:36:16,987 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 25 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-04-18 16:36:16,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 296 transitions, 669 flow [2022-04-18 16:36:16,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:16,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-04-18 16:36:16,989 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8041666666666667 [2022-04-18 16:36:16,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-04-18 16:36:16,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-04-18 16:36:16,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:16,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-04-18 16:36:16,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,993 INFO L186 Difference]: Start difference. First operand has 301 places, 297 transitions, 617 flow. Second operand 3 states and 965 transitions. [2022-04-18 16:36:16,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 296 transitions, 669 flow [2022-04-18 16:36:16,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 296 transitions, 668 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:16,997 INFO L242 Difference]: Finished difference. Result has 301 places, 296 transitions, 618 flow [2022-04-18 16:36:16,997 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=301, PETRI_TRANSITIONS=296} [2022-04-18 16:36:16,998 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -69 predicate places. [2022-04-18 16:36:16,998 INFO L478 AbstractCegarLoop]: Abstraction has has 301 places, 296 transitions, 618 flow [2022-04-18 16:36:16,998 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:16,998 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:16,998 INFO L255 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] [2022-04-18 16:36:16,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:36:16,999 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash -119368119, now seen corresponding path program 1 times [2022-04-18 16:36:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004936431] [2022-04-18 16:36:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:16,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:17,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:17,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:17,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004936431] [2022-04-18 16:36:17,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004936431] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:17,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:17,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:17,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176305569] [2022-04-18 16:36:17,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:17,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:17,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:17,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:17,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:17,111 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 400 [2022-04-18 16:36:17,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 296 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 262.8333333333333) internal successors, (1577), 6 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:17,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:17,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 400 [2022-04-18 16:36:17,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:18,727 INFO L129 PetriNetUnfolder]: 5899/9227 cut-off events. [2022-04-18 16:36:18,728 INFO L130 PetriNetUnfolder]: For 1360/1360 co-relation queries the response was YES. [2022-04-18 16:36:18,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18620 conditions, 9227 events. 5899/9227 cut-off events. For 1360/1360 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 54937 event pairs, 4691 based on Foata normal form. 0/8769 useless extension candidates. Maximal degree in co-relation 18578. Up to 7901 conditions per place. [2022-04-18 16:36:18,787 INFO L132 encePairwiseOnDemand]: 388/400 looper letters, 68 selfloop transitions, 10 changer transitions 0/294 dead transitions. [2022-04-18 16:36:18,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 294 transitions, 770 flow [2022-04-18 16:36:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1644 transitions. [2022-04-18 16:36:18,791 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.685 [2022-04-18 16:36:18,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1644 transitions. [2022-04-18 16:36:18,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1644 transitions. [2022-04-18 16:36:18,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:18,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1644 transitions. [2022-04-18 16:36:18,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:18,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:18,796 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:18,797 INFO L186 Difference]: Start difference. First operand has 301 places, 296 transitions, 618 flow. Second operand 6 states and 1644 transitions. [2022-04-18 16:36:18,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 294 transitions, 770 flow [2022-04-18 16:36:18,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 294 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:18,800 INFO L242 Difference]: Finished difference. Result has 302 places, 294 transitions, 630 flow [2022-04-18 16:36:18,801 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=302, PETRI_TRANSITIONS=294} [2022-04-18 16:36:18,801 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -68 predicate places. [2022-04-18 16:36:18,801 INFO L478 AbstractCegarLoop]: Abstraction has has 302 places, 294 transitions, 630 flow [2022-04-18 16:36:18,802 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.8333333333333) internal successors, (1577), 6 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:18,802 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,802 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:18,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:36:18,802 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:18,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2037069522, now seen corresponding path program 1 times [2022-04-18 16:36:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88158449] [2022-04-18 16:36:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:18,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:18,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88158449] [2022-04-18 16:36:18,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88158449] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:18,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:18,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:18,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821770090] [2022-04-18 16:36:18,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:18,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:18,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:18,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:18,828 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:18,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 294 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:18,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:18,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:18,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,115 INFO L129 PetriNetUnfolder]: 1014/2423 cut-off events. [2022-04-18 16:36:19,116 INFO L130 PetriNetUnfolder]: For 408/491 co-relation queries the response was YES. [2022-04-18 16:36:19,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4200 conditions, 2423 events. 1014/2423 cut-off events. For 408/491 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 15991 event pairs, 719 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4165. Up to 1388 conditions per place. [2022-04-18 16:36:19,133 INFO L132 encePairwiseOnDemand]: 398/400 looper letters, 25 selfloop transitions, 1 changer transitions 0/293 dead transitions. [2022-04-18 16:36:19,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 293 transitions, 680 flow [2022-04-18 16:36:19,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:19,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 964 transitions. [2022-04-18 16:36:19,135 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8033333333333333 [2022-04-18 16:36:19,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 964 transitions. [2022-04-18 16:36:19,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 964 transitions. [2022-04-18 16:36:19,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 964 transitions. [2022-04-18 16:36:19,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.3333333333333) internal successors, (964), 3 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,139 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,139 INFO L186 Difference]: Start difference. First operand has 302 places, 294 transitions, 630 flow. Second operand 3 states and 964 transitions. [2022-04-18 16:36:19,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 293 transitions, 680 flow [2022-04-18 16:36:19,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 660 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:19,143 INFO L242 Difference]: Finished difference. Result has 298 places, 293 transitions, 610 flow [2022-04-18 16:36:19,143 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=610, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2022-04-18 16:36:19,143 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -72 predicate places. [2022-04-18 16:36:19,144 INFO L478 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 610 flow [2022-04-18 16:36:19,144 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,144 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,144 INFO L255 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] [2022-04-18 16:36:19,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:36:19,144 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:19,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,145 INFO L85 PathProgramCache]: Analyzing trace with hash 430970520, now seen corresponding path program 1 times [2022-04-18 16:36:19,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232455188] [2022-04-18 16:36:19,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:19,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232455188] [2022-04-18 16:36:19,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232455188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:19,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900833539] [2022-04-18 16:36:19,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,171 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:19,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:19,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:19,172 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:19,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:19,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,529 INFO L129 PetriNetUnfolder]: 1014/2422 cut-off events. [2022-04-18 16:36:19,529 INFO L130 PetriNetUnfolder]: For 408/491 co-relation queries the response was YES. [2022-04-18 16:36:19,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4191 conditions, 2422 events. 1014/2422 cut-off events. For 408/491 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 15950 event pairs, 719 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 4148. Up to 1390 conditions per place. [2022-04-18 16:36:19,540 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 25 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2022-04-18 16:36:19,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 292 transitions, 662 flow [2022-04-18 16:36:19,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 965 transitions. [2022-04-18 16:36:19,544 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8041666666666667 [2022-04-18 16:36:19,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 965 transitions. [2022-04-18 16:36:19,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 965 transitions. [2022-04-18 16:36:19,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 965 transitions. [2022-04-18 16:36:19,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.6666666666667) internal successors, (965), 3 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,548 INFO L186 Difference]: Start difference. First operand has 298 places, 293 transitions, 610 flow. Second operand 3 states and 965 transitions. [2022-04-18 16:36:19,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 292 transitions, 662 flow [2022-04-18 16:36:19,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 292 transitions, 661 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:19,552 INFO L242 Difference]: Finished difference. Result has 298 places, 292 transitions, 611 flow [2022-04-18 16:36:19,552 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=611, PETRI_PLACES=298, PETRI_TRANSITIONS=292} [2022-04-18 16:36:19,552 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -72 predicate places. [2022-04-18 16:36:19,552 INFO L478 AbstractCegarLoop]: Abstraction has has 298 places, 292 transitions, 611 flow [2022-04-18 16:36:19,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,554 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,554 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:19,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:36:19,554 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:19,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1158050724, now seen corresponding path program 1 times [2022-04-18 16:36:19,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896023097] [2022-04-18 16:36:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:19,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896023097] [2022-04-18 16:36:19,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896023097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:19,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059580839] [2022-04-18 16:36:19,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:19,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:19,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:19,649 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 400 [2022-04-18 16:36:19,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 292 transitions, 611 flow. Second operand has 6 states, 6 states have (on average 279.1666666666667) internal successors, (1675), 6 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:19,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 400 [2022-04-18 16:36:19,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:20,761 INFO L129 PetriNetUnfolder]: 5899/9224 cut-off events. [2022-04-18 16:36:20,761 INFO L130 PetriNetUnfolder]: For 1360/1360 co-relation queries the response was YES. [2022-04-18 16:36:20,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18599 conditions, 9224 events. 5899/9224 cut-off events. For 1360/1360 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 54544 event pairs, 1065 based on Foata normal form. 0/8953 useless extension candidates. Maximal degree in co-relation 18555. Up to 3588 conditions per place. [2022-04-18 16:36:20,818 INFO L132 encePairwiseOnDemand]: 395/400 looper letters, 111 selfloop transitions, 4 changer transitions 0/347 dead transitions. [2022-04-18 16:36:20,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 347 transitions, 983 flow [2022-04-18 16:36:20,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:20,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1768 transitions. [2022-04-18 16:36:20,824 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7366666666666667 [2022-04-18 16:36:20,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1768 transitions. [2022-04-18 16:36:20,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1768 transitions. [2022-04-18 16:36:20,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:20,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1768 transitions. [2022-04-18 16:36:20,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 294.6666666666667) internal successors, (1768), 6 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:20,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:20,839 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:20,839 INFO L186 Difference]: Start difference. First operand has 298 places, 292 transitions, 611 flow. Second operand 6 states and 1768 transitions. [2022-04-18 16:36:20,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 347 transitions, 983 flow [2022-04-18 16:36:20,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 347 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:20,844 INFO L242 Difference]: Finished difference. Result has 300 places, 291 transitions, 613 flow [2022-04-18 16:36:20,845 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=613, PETRI_PLACES=300, PETRI_TRANSITIONS=291} [2022-04-18 16:36:20,845 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -70 predicate places. [2022-04-18 16:36:20,845 INFO L478 AbstractCegarLoop]: Abstraction has has 300 places, 291 transitions, 613 flow [2022-04-18 16:36:20,845 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 279.1666666666667) internal successors, (1675), 6 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:20,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:20,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:20,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:36:20,846 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:20,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:20,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1680868287, now seen corresponding path program 1 times [2022-04-18 16:36:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:20,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98879549] [2022-04-18 16:36:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:20,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:20,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98879549] [2022-04-18 16:36:20,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98879549] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:20,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:20,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:20,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707336112] [2022-04-18 16:36:20,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:20,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:20,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:20,951 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 400 [2022-04-18 16:36:20,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 291 transitions, 613 flow. Second operand has 6 states, 6 states have (on average 280.1666666666667) internal successors, (1681), 6 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:20,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:20,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 400 [2022-04-18 16:36:20,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:22,035 INFO L129 PetriNetUnfolder]: 4807/7877 cut-off events. [2022-04-18 16:36:22,035 INFO L130 PetriNetUnfolder]: For 1585/1585 co-relation queries the response was YES. [2022-04-18 16:36:22,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16576 conditions, 7877 events. 4807/7877 cut-off events. For 1585/1585 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 48721 event pairs, 3339 based on Foata normal form. 0/7674 useless extension candidates. Maximal degree in co-relation 16532. Up to 5142 conditions per place. [2022-04-18 16:36:22,117 INFO L132 encePairwiseOnDemand]: 395/400 looper letters, 102 selfloop transitions, 4 changer transitions 0/338 dead transitions. [2022-04-18 16:36:22,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 338 transitions, 951 flow [2022-04-18 16:36:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:22,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1759 transitions. [2022-04-18 16:36:22,134 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7329166666666667 [2022-04-18 16:36:22,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1759 transitions. [2022-04-18 16:36:22,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1759 transitions. [2022-04-18 16:36:22,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:22,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1759 transitions. [2022-04-18 16:36:22,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.1666666666667) internal successors, (1759), 6 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,143 INFO L186 Difference]: Start difference. First operand has 300 places, 291 transitions, 613 flow. Second operand 6 states and 1759 transitions. [2022-04-18 16:36:22,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 338 transitions, 951 flow [2022-04-18 16:36:22,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 338 transitions, 944 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:22,165 INFO L242 Difference]: Finished difference. Result has 300 places, 290 transitions, 612 flow [2022-04-18 16:36:22,165 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=612, PETRI_PLACES=300, PETRI_TRANSITIONS=290} [2022-04-18 16:36:22,166 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -70 predicate places. [2022-04-18 16:36:22,166 INFO L478 AbstractCegarLoop]: Abstraction has has 300 places, 290 transitions, 612 flow [2022-04-18 16:36:22,166 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 280.1666666666667) internal successors, (1681), 6 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,166 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:22,167 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:22,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:36:22,167 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:22,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash 99620791, now seen corresponding path program 1 times [2022-04-18 16:36:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:22,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137282958] [2022-04-18 16:36:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:22,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:22,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137282958] [2022-04-18 16:36:22,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137282958] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:22,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:22,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:22,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631490615] [2022-04-18 16:36:22,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:22,297 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:22,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:22,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:22,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:22,298 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 400 [2022-04-18 16:36:22,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 290 transitions, 612 flow. Second operand has 4 states, 4 states have (on average 316.5) internal successors, (1266), 4 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:22,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 400 [2022-04-18 16:36:22,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:22,708 INFO L129 PetriNetUnfolder]: 1715/3667 cut-off events. [2022-04-18 16:36:22,708 INFO L130 PetriNetUnfolder]: For 607/665 co-relation queries the response was YES. [2022-04-18 16:36:22,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6662 conditions, 3667 events. 1715/3667 cut-off events. For 607/665 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 25438 event pairs, 370 based on Foata normal form. 1/3329 useless extension candidates. Maximal degree in co-relation 6619. Up to 976 conditions per place. [2022-04-18 16:36:22,734 INFO L132 encePairwiseOnDemand]: 395/400 looper letters, 61 selfloop transitions, 5 changer transitions 0/330 dead transitions. [2022-04-18 16:36:22,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 330 transitions, 849 flow [2022-04-18 16:36:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1631 transitions. [2022-04-18 16:36:22,746 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8155 [2022-04-18 16:36:22,747 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1631 transitions. [2022-04-18 16:36:22,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1631 transitions. [2022-04-18 16:36:22,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:22,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1631 transitions. [2022-04-18 16:36:22,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 326.2) internal successors, (1631), 5 states have internal predecessors, (1631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,751 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,751 INFO L186 Difference]: Start difference. First operand has 300 places, 290 transitions, 612 flow. Second operand 5 states and 1631 transitions. [2022-04-18 16:36:22,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 330 transitions, 849 flow [2022-04-18 16:36:22,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 330 transitions, 842 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:22,756 INFO L242 Difference]: Finished difference. Result has 303 places, 293 transitions, 636 flow [2022-04-18 16:36:22,756 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=636, PETRI_PLACES=303, PETRI_TRANSITIONS=293} [2022-04-18 16:36:22,757 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2022-04-18 16:36:22,757 INFO L478 AbstractCegarLoop]: Abstraction has has 303 places, 293 transitions, 636 flow [2022-04-18 16:36:22,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 316.5) internal successors, (1266), 4 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,757 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:22,757 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:22,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:36:22,757 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:22,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:22,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1790726760, now seen corresponding path program 1 times [2022-04-18 16:36:22,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:22,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625671356] [2022-04-18 16:36:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:22,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:22,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:22,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625671356] [2022-04-18 16:36:22,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625671356] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:22,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:22,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856034581] [2022-04-18 16:36:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:22,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:22,872 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 400 [2022-04-18 16:36:22,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 293 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:22,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:22,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 400 [2022-04-18 16:36:22,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:24,298 INFO L129 PetriNetUnfolder]: 6583/10659 cut-off events. [2022-04-18 16:36:24,298 INFO L130 PetriNetUnfolder]: For 4382/4382 co-relation queries the response was YES. [2022-04-18 16:36:24,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24178 conditions, 10659 events. 6583/10659 cut-off events. For 4382/4382 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 70220 event pairs, 4957 based on Foata normal form. 0/10423 useless extension candidates. Maximal degree in co-relation 24131. Up to 8727 conditions per place. [2022-04-18 16:36:24,385 INFO L132 encePairwiseOnDemand]: 395/400 looper letters, 76 selfloop transitions, 4 changer transitions 0/312 dead transitions. [2022-04-18 16:36:24,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 312 transitions, 850 flow [2022-04-18 16:36:24,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1734 transitions. [2022-04-18 16:36:24,388 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7225 [2022-04-18 16:36:24,388 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1734 transitions. [2022-04-18 16:36:24,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1734 transitions. [2022-04-18 16:36:24,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:24,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1734 transitions. [2022-04-18 16:36:24,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.0) internal successors, (1734), 6 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:24,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:24,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:24,396 INFO L186 Difference]: Start difference. First operand has 303 places, 293 transitions, 636 flow. Second operand 6 states and 1734 transitions. [2022-04-18 16:36:24,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 312 transitions, 850 flow [2022-04-18 16:36:24,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 312 transitions, 847 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:24,405 INFO L242 Difference]: Finished difference. Result has 306 places, 292 transitions, 639 flow [2022-04-18 16:36:24,406 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=639, PETRI_PLACES=306, PETRI_TRANSITIONS=292} [2022-04-18 16:36:24,406 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -64 predicate places. [2022-04-18 16:36:24,406 INFO L478 AbstractCegarLoop]: Abstraction has has 306 places, 292 transitions, 639 flow [2022-04-18 16:36:24,407 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:24,407 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:24,407 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:24,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:36:24,407 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:24,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash -874266334, now seen corresponding path program 1 times [2022-04-18 16:36:24,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:24,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148997069] [2022-04-18 16:36:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:24,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:24,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:24,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148997069] [2022-04-18 16:36:24,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148997069] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:24,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:24,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:24,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871829451] [2022-04-18 16:36:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:24,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:24,483 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 400 [2022-04-18 16:36:24,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 292 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 317.25) internal successors, (1269), 4 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) [2022-04-18 16:36:24,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:24,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 400 [2022-04-18 16:36:24,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:25,204 INFO L129 PetriNetUnfolder]: 2487/5593 cut-off events. [2022-04-18 16:36:25,204 INFO L130 PetriNetUnfolder]: For 1562/1701 co-relation queries the response was YES. [2022-04-18 16:36:25,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10893 conditions, 5593 events. 2487/5593 cut-off events. For 1562/1701 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 44792 event pairs, 402 based on Foata normal form. 1/5254 useless extension candidates. Maximal degree in co-relation 10847. Up to 1403 conditions per place. [2022-04-18 16:36:25,248 INFO L132 encePairwiseOnDemand]: 395/400 looper letters, 64 selfloop transitions, 7 changer transitions 0/334 dead transitions. [2022-04-18 16:36:25,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 334 transitions, 910 flow [2022-04-18 16:36:25,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1632 transitions. [2022-04-18 16:36:25,251 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.816 [2022-04-18 16:36:25,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1632 transitions. [2022-04-18 16:36:25,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1632 transitions. [2022-04-18 16:36:25,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:25,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1632 transitions. [2022-04-18 16:36:25,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 326.4) internal successors, (1632), 5 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:25,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:25,256 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:25,257 INFO L186 Difference]: Start difference. First operand has 306 places, 292 transitions, 639 flow. Second operand 5 states and 1632 transitions. [2022-04-18 16:36:25,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 334 transitions, 910 flow [2022-04-18 16:36:25,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 334 transitions, 903 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:25,262 INFO L242 Difference]: Finished difference. Result has 309 places, 296 transitions, 678 flow [2022-04-18 16:36:25,262 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=678, PETRI_PLACES=309, PETRI_TRANSITIONS=296} [2022-04-18 16:36:25,263 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -61 predicate places. [2022-04-18 16:36:25,263 INFO L478 AbstractCegarLoop]: Abstraction has has 309 places, 296 transitions, 678 flow [2022-04-18 16:36:25,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 317.25) internal successors, (1269), 4 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) [2022-04-18 16:36:25,263 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:25,263 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:25,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:36:25,264 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:25,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash 940400816, now seen corresponding path program 2 times [2022-04-18 16:36:25,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:25,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536184614] [2022-04-18 16:36:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:25,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:25,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:25,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536184614] [2022-04-18 16:36:25,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536184614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:25,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:25,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:25,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138460263] [2022-04-18 16:36:25,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:25,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:25,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:25,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:25,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:25,344 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 400 [2022-04-18 16:36:25,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 296 transitions, 678 flow. Second operand has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:25,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:25,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 400 [2022-04-18 16:36:25,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:27,170 INFO L129 PetriNetUnfolder]: 9674/15747 cut-off events. [2022-04-18 16:36:27,170 INFO L130 PetriNetUnfolder]: For 11034/11034 co-relation queries the response was YES. [2022-04-18 16:36:27,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38346 conditions, 15747 events. 9674/15747 cut-off events. For 11034/11034 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 114001 event pairs, 6885 based on Foata normal form. 0/15534 useless extension candidates. Maximal degree in co-relation 38296. Up to 13089 conditions per place. [2022-04-18 16:36:27,288 INFO L132 encePairwiseOnDemand]: 395/400 looper letters, 59 selfloop transitions, 4 changer transitions 0/295 dead transitions. [2022-04-18 16:36:27,289 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 295 transitions, 802 flow [2022-04-18 16:36:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:27,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1717 transitions. [2022-04-18 16:36:27,291 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7154166666666667 [2022-04-18 16:36:27,291 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1717 transitions. [2022-04-18 16:36:27,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1717 transitions. [2022-04-18 16:36:27,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:27,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1717 transitions. [2022-04-18 16:36:27,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 286.1666666666667) internal successors, (1717), 6 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,296 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,296 INFO L186 Difference]: Start difference. First operand has 309 places, 296 transitions, 678 flow. Second operand 6 states and 1717 transitions. [2022-04-18 16:36:27,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 295 transitions, 802 flow [2022-04-18 16:36:27,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 295 transitions, 798 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:27,307 INFO L242 Difference]: Finished difference. Result has 312 places, 295 transitions, 680 flow [2022-04-18 16:36:27,307 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=680, PETRI_PLACES=312, PETRI_TRANSITIONS=295} [2022-04-18 16:36:27,307 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -58 predicate places. [2022-04-18 16:36:27,307 INFO L478 AbstractCegarLoop]: Abstraction has has 312 places, 295 transitions, 680 flow [2022-04-18 16:36:27,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.6666666666667) internal successors, (1696), 6 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,308 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:27,308 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:27,308 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:36:27,308 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-04-18 16:36:27,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1448319802, now seen corresponding path program 1 times [2022-04-18 16:36:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:27,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750340974] [2022-04-18 16:36:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:27,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:27,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750340974] [2022-04-18 16:36:27,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750340974] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:27,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:27,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:27,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221411131] [2022-04-18 16:36:27,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:27,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:27,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:27,345 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 400 [2022-04-18 16:36:27,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 295 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:27,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 400 [2022-04-18 16:36:27,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:27,800 INFO L129 PetriNetUnfolder]: 1827/4323 cut-off events. [2022-04-18 16:36:27,801 INFO L130 PetriNetUnfolder]: For 2188/2311 co-relation queries the response was YES. [2022-04-18 16:36:27,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8874 conditions, 4323 events. 1827/4323 cut-off events. For 2188/2311 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 33906 event pairs, 534 based on Foata normal form. 5/4131 useless extension candidates. Maximal degree in co-relation 8826. Up to 2171 conditions per place. [2022-04-18 16:36:27,822 INFO L132 encePairwiseOnDemand]: 393/400 looper letters, 0 selfloop transitions, 0 changer transitions 314/314 dead transitions. [2022-04-18 16:36:27,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 314 transitions, 854 flow [2022-04-18 16:36:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:27,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 979 transitions. [2022-04-18 16:36:27,824 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8158333333333333 [2022-04-18 16:36:27,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 979 transitions. [2022-04-18 16:36:27,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 979 transitions. [2022-04-18 16:36:27,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:27,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 979 transitions. [2022-04-18 16:36:27,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,827 INFO L186 Difference]: Start difference. First operand has 312 places, 295 transitions, 680 flow. Second operand 3 states and 979 transitions. [2022-04-18 16:36:27,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 314 transitions, 854 flow [2022-04-18 16:36:27,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 314 transitions, 847 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:27,833 INFO L242 Difference]: Finished difference. Result has 309 places, 0 transitions, 0 flow [2022-04-18 16:36:27,833 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=309, PETRI_TRANSITIONS=0} [2022-04-18 16:36:27,833 INFO L335 CegarLoopForPetriNet]: 370 programPoint places, -61 predicate places. [2022-04-18 16:36:27,833 INFO L478 AbstractCegarLoop]: Abstraction has has 309 places, 0 transitions, 0 flow [2022-04-18 16:36:27,834 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:27,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (124 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (123 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (122 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (121 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (120 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (119 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (118 of 125 remaining) [2022-04-18 16:36:27,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (117 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (116 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (115 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (114 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (113 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (112 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (111 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (110 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (109 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (108 of 125 remaining) [2022-04-18 16:36:27,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (107 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (106 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (105 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (104 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (103 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (102 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (101 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (100 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (99 of 125 remaining) [2022-04-18 16:36:27,838 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (98 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (97 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (96 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (95 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (94 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (93 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (92 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (91 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (90 of 125 remaining) [2022-04-18 16:36:27,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (89 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (88 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (87 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (86 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (85 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (84 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (83 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (82 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (81 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (80 of 125 remaining) [2022-04-18 16:36:27,840 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONDATA_RACE (79 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (78 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (77 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (76 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (75 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (74 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (73 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (72 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (71 of 125 remaining) [2022-04-18 16:36:27,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (70 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (69 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (68 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (67 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (66 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (65 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (64 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (63 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (62 of 125 remaining) [2022-04-18 16:36:27,842 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (61 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (60 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (59 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (58 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (57 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (56 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 125 remaining) [2022-04-18 16:36:27,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (51 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (50 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (49 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (48 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (47 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (46 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (45 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (44 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (43 of 125 remaining) [2022-04-18 16:36:27,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (42 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (41 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (40 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (39 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (38 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (37 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (36 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (35 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (34 of 125 remaining) [2022-04-18 16:36:27,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (33 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (32 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (31 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (30 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (29 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (28 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (27 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (26 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (25 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (24 of 125 remaining) [2022-04-18 16:36:27,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (23 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (22 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (21 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (20 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (19 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (18 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (17 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (16 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (15 of 125 remaining) [2022-04-18 16:36:27,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (14 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (13 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (12 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (11 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (10 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (9 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (8 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (7 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (6 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (5 of 125 remaining) [2022-04-18 16:36:27,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (4 of 125 remaining) [2022-04-18 16:36:27,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONDATA_RACE (3 of 125 remaining) [2022-04-18 16:36:27,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (2 of 125 remaining) [2022-04-18 16:36:27,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (1 of 125 remaining) [2022-04-18 16:36:27,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (0 of 125 remaining) [2022-04-18 16:36:27,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:36:27,857 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:27,862 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:36:27,862 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:36:27,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:36:27 BasicIcfg [2022-04-18 16:36:27,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:36:27,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:36:27,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:36:27,879 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:36:27,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:12" (3/4) ... [2022-04-18 16:36:27,882 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:36:27,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:36:27,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:36:27,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:36:27,885 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-04-18 16:36:27,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-04-18 16:36:27,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:36:27,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:36:27,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:36:27,988 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:36:27,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:36:27,989 INFO L158 Benchmark]: Toolchain (without parser) took 17240.91ms. Allocated memory was 102.8MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 60.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2022-04-18 16:36:27,989 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:36:27,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.38ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 73.1MB in the end (delta: -13.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-04-18 16:36:27,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.72ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 69.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:36:27,990 INFO L158 Benchmark]: Boogie Preprocessor took 54.62ms. Allocated memory is still 102.8MB. Free memory was 69.6MB in the beginning and 66.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:27,990 INFO L158 Benchmark]: RCFGBuilder took 1024.86ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 66.2MB in the beginning and 62.2MB in the end (delta: 4.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:27,990 INFO L158 Benchmark]: TraceAbstraction took 15718.08ms. Allocated memory was 140.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 61.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-04-18 16:36:27,990 INFO L158 Benchmark]: Witness Printer took 109.03ms. Allocated memory is still 3.0GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-04-18 16:36:27,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.38ms. Allocated memory is still 102.8MB. Free memory was 60.1MB in the beginning and 73.1MB in the end (delta: -13.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.72ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 69.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.62ms. Allocated memory is still 102.8MB. Free memory was 69.6MB in the beginning and 66.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1024.86ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 66.2MB in the beginning and 62.2MB in the end (delta: 4.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15718.08ms. Allocated memory was 140.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 61.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 109.03ms. Allocated memory is still 3.0GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 128]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 129]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 130]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 131]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 131]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 132]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 132]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 161]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 135]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 135]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 161]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 137]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 144]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 145]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 146]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 147]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 149]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 472 locations, 125 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.5s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 340 mSDsluCounter, 233 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 468 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1584 IncrementalHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 227 mSDtfsCounter, 1584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred in iteration=0, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2877 NumberOfCodeBlocks, 2877 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2854 ConstructedInterpolants, 0 QuantifiedInterpolants, 3885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 72 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:36:28,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE