./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 07:45:34,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:45:34,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:45:34,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:45:34,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:45:34,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:45:34,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:45:34,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:45:34,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:45:34,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:45:34,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:45:34,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:45:34,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:45:34,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:45:34,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:45:34,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:45:34,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:45:34,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:45:34,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:45:34,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:45:34,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:45:34,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:45:34,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:45:34,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:45:34,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:45:34,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:45:34,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:45:34,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:45:34,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:45:34,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:45:34,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:45:34,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:45:34,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:45:34,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:45:34,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:45:34,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:45:34,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:45:34,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:45:34,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:45:34,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:45:34,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:45:34,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:45:34,660 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:45:34,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:45:34,661 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:45:34,661 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:45:34,662 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:45:34,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:45:34,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:45:34,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:45:34,663 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:45:34,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:45:34,664 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:45:34,664 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:45:34,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:45:34,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:45:34,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:45:34,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:45:34,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:45:34,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:45:34,666 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:45:34,666 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:45:34,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:45:34,666 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:45:34,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:45:34,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:45:34,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:45:34,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:45:34,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:45:34,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:45:34,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:45:34,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:45:34,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:45:34,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:45:34,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:45:34,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:45:34,669 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:45:34,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:45:34,669 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:45:34,669 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:45:34,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:45:35,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:45:35,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:45:35,015 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:45:35,015 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:45:35,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-09-01 07:45:36,319 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:45:36,528 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:45:36,528 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-09-01 07:45:36,534 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c460ce4e6/1128c74fb26248c99e3dfb46818215c3/FLAGf871c3d8e [2023-09-01 07:45:36,547 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c460ce4e6/1128c74fb26248c99e3dfb46818215c3 [2023-09-01 07:45:36,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:45:36,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:45:36,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:45:36,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:45:36,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:45:36,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15af6fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36, skipping insertion in model container [2023-09-01 07:45:36,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:45:36,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:45:36,744 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-09-01 07:45:36,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:45:36,762 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:45:36,813 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-09-01 07:45:36,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:45:36,830 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:45:36,834 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:45:36,840 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:45:36,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36 WrapperNode [2023-09-01 07:45:36,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:45:36,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:45:36,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:45:36,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:45:36,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,911 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 281 [2023-09-01 07:45:36,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:45:36,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:45:36,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:45:36,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:45:36,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:45:36,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:45:36,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:45:36,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:45:36,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (1/1) ... [2023-09-01 07:45:36,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:45:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:45:37,026 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) [2023-09-01 07:45:37,049 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 [2023-09-01 07:45:37,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:45:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:45:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:45:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:45:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:45:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:45:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:45:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:45:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-01 07:45:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-01 07:45:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-01 07:45:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-01 07:45:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:45:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-09-01 07:45:37,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-09-01 07:45:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-09-01 07:45:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-09-01 07:45:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 07:45:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 07:45:37,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:45:37,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:45:37,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:45:37,073 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 07:45:37,224 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:45:37,226 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:45:37,667 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:45:37,787 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:45:37,790 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 07:45:37,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:45:37 BoogieIcfgContainer [2023-09-01 07:45:37,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:45:37,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:45:37,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:45:37,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:45:37,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:45:36" (1/3) ... [2023-09-01 07:45:37,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a984a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:45:37, skipping insertion in model container [2023-09-01 07:45:37,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:45:36" (2/3) ... [2023-09-01 07:45:37,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a984a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:45:37, skipping insertion in model container [2023-09-01 07:45:37,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:45:37" (3/3) ... [2023-09-01 07:45:37,806 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-09-01 07:45:37,814 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:45:37,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:45:37,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-09-01 07:45:37,823 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:45:37,957 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-09-01 07:45:37,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 250 transitions, 572 flow [2023-09-01 07:45:38,071 INFO L130 PetriNetUnfolder]: 8/222 cut-off events. [2023-09-01 07:45:38,076 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 07:45:38,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 222 events. 8/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 324 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 192. Up to 3 conditions per place. [2023-09-01 07:45:38,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 250 transitions, 572 flow [2023-09-01 07:45:38,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 218 places, 206 transitions, 457 flow [2023-09-01 07:45:38,103 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:45:38,119 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 206 transitions, 457 flow [2023-09-01 07:45:38,125 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 206 transitions, 457 flow [2023-09-01 07:45:38,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 206 transitions, 457 flow [2023-09-01 07:45:38,202 INFO L130 PetriNetUnfolder]: 7/206 cut-off events. [2023-09-01 07:45:38,203 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-09-01 07:45:38,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 206 events. 7/206 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 322 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 192. Up to 3 conditions per place. [2023-09-01 07:45:38,213 INFO L119 LiptonReduction]: Number of co-enabled transitions 9812 [2023-09-01 07:45:42,374 INFO L134 LiptonReduction]: Checked pairs total: 68765 [2023-09-01 07:45:42,375 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-09-01 07:45:42,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:45:42,393 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9249e8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:45:42,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-09-01 07:45:42,397 INFO L130 PetriNetUnfolder]: 1/17 cut-off events. [2023-09-01 07:45:42,398 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:45:42,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:45:42,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:45:42,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:45:42,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:45:42,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1532513516, now seen corresponding path program 1 times [2023-09-01 07:45:42,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:45:42,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116681823] [2023-09-01 07:45:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:45:42,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:45:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:45:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:45:42,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:45:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116681823] [2023-09-01 07:45:42,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116681823] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:45:42,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:45:42,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:45:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9748284] [2023-09-01 07:45:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:45:42,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 07:45:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:45:42,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 07:45:42,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 07:45:42,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 396 [2023-09-01 07:45:42,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 92 transitions, 229 flow. Second operand has 2 states, 2 states have (on average 208.0) internal successors, (416), 2 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:45:42,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:45:42,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 396 [2023-09-01 07:45:42,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:00,036 INFO L130 PetriNetUnfolder]: 196365/258346 cut-off events. [2023-09-01 07:46:00,036 INFO L131 PetriNetUnfolder]: For 20734/20734 co-relation queries the response was YES. [2023-09-01 07:46:00,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528652 conditions, 258346 events. 196365/258346 cut-off events. For 20734/20734 co-relation queries the response was YES. Maximal size of possible extension queue 7336. Compared 1743230 event pairs, 190641 based on Foata normal form. 318/202422 useless extension candidates. Maximal degree in co-relation 526384. Up to 246927 conditions per place. [2023-09-01 07:46:02,348 INFO L137 encePairwiseOnDemand]: 394/396 looper letters, 59 selfloop transitions, 0 changer transitions 0/90 dead transitions. [2023-09-01 07:46:02,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 90 transitions, 343 flow [2023-09-01 07:46:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 07:46:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 07:46:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 471 transitions. [2023-09-01 07:46:02,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5946969696969697 [2023-09-01 07:46:02,362 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 471 transitions. [2023-09-01 07:46:02,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 471 transitions. [2023-09-01 07:46:02,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:02,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 471 transitions. [2023-09-01 07:46:02,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:02,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:02,380 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:02,382 INFO L175 Difference]: Start difference. First operand has 105 places, 92 transitions, 229 flow. Second operand 2 states and 471 transitions. [2023-09-01 07:46:02,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 90 transitions, 343 flow [2023-09-01 07:46:03,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 90 transitions, 314 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-09-01 07:46:03,481 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 196 flow [2023-09-01 07:46:03,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=196, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2023-09-01 07:46:03,486 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2023-09-01 07:46:03,486 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 196 flow [2023-09-01 07:46:03,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 208.0) internal successors, (416), 2 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:03,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:03,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:03,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:46:03,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:03,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash -503535594, now seen corresponding path program 1 times [2023-09-01 07:46:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:03,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237367928] [2023-09-01 07:46:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:03,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:03,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237367928] [2023-09-01 07:46:03,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237367928] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:03,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:03,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:46:03,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764605675] [2023-09-01 07:46:03,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:03,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:46:03,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:03,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:46:03,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:46:03,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 396 [2023-09-01 07:46:03,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:03,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:03,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 396 [2023-09-01 07:46:03,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:14,899 INFO L130 PetriNetUnfolder]: 153807/203388 cut-off events. [2023-09-01 07:46:14,900 INFO L131 PetriNetUnfolder]: For 3685/3685 co-relation queries the response was YES. [2023-09-01 07:46:15,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402328 conditions, 203388 events. 153807/203388 cut-off events. For 3685/3685 co-relation queries the response was YES. Maximal size of possible extension queue 5820. Compared 1360124 event pairs, 148995 based on Foata normal form. 0/166031 useless extension candidates. Maximal degree in co-relation 402325. Up to 193874 conditions per place. [2023-09-01 07:46:16,248 INFO L137 encePairwiseOnDemand]: 393/396 looper letters, 56 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-09-01 07:46:16,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 88 transitions, 306 flow [2023-09-01 07:46:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:46:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:46:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2023-09-01 07:46:16,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5622895622895623 [2023-09-01 07:46:16,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2023-09-01 07:46:16,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2023-09-01 07:46:16,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:16,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2023-09-01 07:46:16,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:16,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:16,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:16,257 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 196 flow. Second operand 3 states and 668 transitions. [2023-09-01 07:46:16,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 88 transitions, 306 flow [2023-09-01 07:46:16,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 88 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 07:46:16,263 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 194 flow [2023-09-01 07:46:16,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2023-09-01 07:46:16,264 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -10 predicate places. [2023-09-01 07:46:16,265 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 194 flow [2023-09-01 07:46:16,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:16,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:16,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:16,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:46:16,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:16,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash -503535593, now seen corresponding path program 1 times [2023-09-01 07:46:16,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:16,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71910744] [2023-09-01 07:46:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:16,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:16,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:16,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71910744] [2023-09-01 07:46:16,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71910744] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:16,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:16,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:46:16,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111086516] [2023-09-01 07:46:16,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:16,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:46:16,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:46:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:46:16,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 396 [2023-09-01 07:46:16,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:16,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:16,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 396 [2023-09-01 07:46:16,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:25,702 INFO L130 PetriNetUnfolder]: 132797/177917 cut-off events. [2023-09-01 07:46:25,703 INFO L131 PetriNetUnfolder]: For 3132/3132 co-relation queries the response was YES. [2023-09-01 07:46:26,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350123 conditions, 177917 events. 132797/177917 cut-off events. For 3132/3132 co-relation queries the response was YES. Maximal size of possible extension queue 5227. Compared 1228906 event pairs, 42452 based on Foata normal form. 4452/148317 useless extension candidates. Maximal degree in co-relation 350119. Up to 149211 conditions per place. [2023-09-01 07:46:26,707 INFO L137 encePairwiseOnDemand]: 390/396 looper letters, 120 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2023-09-01 07:46:26,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 155 transitions, 593 flow [2023-09-01 07:46:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:46:26,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:46:26,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 930 transitions. [2023-09-01 07:46:26,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5871212121212122 [2023-09-01 07:46:26,710 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 930 transitions. [2023-09-01 07:46:26,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 930 transitions. [2023-09-01 07:46:26,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:26,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 930 transitions. [2023-09-01 07:46:26,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 232.5) internal successors, (930), 4 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:26,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:26,717 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:26,717 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 194 flow. Second operand 4 states and 930 transitions. [2023-09-01 07:46:26,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 155 transitions, 593 flow [2023-09-01 07:46:26,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 155 transitions, 592 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:46:26,721 INFO L231 Difference]: Finished difference. Result has 98 places, 90 transitions, 216 flow [2023-09-01 07:46:26,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=98, PETRI_TRANSITIONS=90} [2023-09-01 07:46:26,722 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -7 predicate places. [2023-09-01 07:46:26,722 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 90 transitions, 216 flow [2023-09-01 07:46:26,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:26,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:26,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:26,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:46:26,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:26,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash 739991958, now seen corresponding path program 1 times [2023-09-01 07:46:26,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:26,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621815743] [2023-09-01 07:46:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:26,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:26,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:26,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621815743] [2023-09-01 07:46:26,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621815743] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:26,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:26,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:46:26,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529651590] [2023-09-01 07:46:26,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:26,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:46:26,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:26,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:46:26,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:46:26,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 396 [2023-09-01 07:46:26,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 90 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:26,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:26,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 396 [2023-09-01 07:46:26,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:34,195 INFO L130 PetriNetUnfolder]: 100729/138736 cut-off events. [2023-09-01 07:46:34,196 INFO L131 PetriNetUnfolder]: For 13511/13511 co-relation queries the response was YES. [2023-09-01 07:46:34,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283542 conditions, 138736 events. 100729/138736 cut-off events. For 13511/13511 co-relation queries the response was YES. Maximal size of possible extension queue 4077. Compared 966632 event pairs, 7596 based on Foata normal form. 3080/120073 useless extension candidates. Maximal degree in co-relation 283537. Up to 114552 conditions per place. [2023-09-01 07:46:35,001 INFO L137 encePairwiseOnDemand]: 387/396 looper letters, 150 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-09-01 07:46:35,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 186 transitions, 791 flow [2023-09-01 07:46:35,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 07:46:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 07:46:35,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1156 transitions. [2023-09-01 07:46:35,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5838383838383838 [2023-09-01 07:46:35,004 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1156 transitions. [2023-09-01 07:46:35,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1156 transitions. [2023-09-01 07:46:35,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:35,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1156 transitions. [2023-09-01 07:46:35,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 231.2) internal successors, (1156), 5 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:35,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:35,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:35,013 INFO L175 Difference]: Start difference. First operand has 98 places, 90 transitions, 216 flow. Second operand 5 states and 1156 transitions. [2023-09-01 07:46:35,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 186 transitions, 791 flow [2023-09-01 07:46:35,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 186 transitions, 777 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:46:35,024 INFO L231 Difference]: Finished difference. Result has 101 places, 92 transitions, 240 flow [2023-09-01 07:46:35,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=101, PETRI_TRANSITIONS=92} [2023-09-01 07:46:35,025 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -4 predicate places. [2023-09-01 07:46:35,025 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 92 transitions, 240 flow [2023-09-01 07:46:35,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:35,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:35,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:35,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:46:35,027 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:35,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1117429539, now seen corresponding path program 1 times [2023-09-01 07:46:35,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:35,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942205471] [2023-09-01 07:46:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:35,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:35,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:35,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942205471] [2023-09-01 07:46:35,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942205471] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:35,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:35,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:46:35,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918736138] [2023-09-01 07:46:35,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:35,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:46:35,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:35,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:46:35,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:46:35,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 396 [2023-09-01 07:46:35,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 92 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:35,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:35,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 396 [2023-09-01 07:46:35,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:40,842 INFO L130 PetriNetUnfolder]: 72857/101873 cut-off events. [2023-09-01 07:46:40,843 INFO L131 PetriNetUnfolder]: For 16798/16798 co-relation queries the response was YES. [2023-09-01 07:46:41,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217868 conditions, 101873 events. 72857/101873 cut-off events. For 16798/16798 co-relation queries the response was YES. Maximal size of possible extension queue 3054. Compared 719594 event pairs, 14989 based on Foata normal form. 2460/90230 useless extension candidates. Maximal degree in co-relation 217862. Up to 78447 conditions per place. [2023-09-01 07:46:41,460 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 96 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2023-09-01 07:46:41,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 130 transitions, 548 flow [2023-09-01 07:46:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:46:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:46:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2023-09-01 07:46:41,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5942760942760943 [2023-09-01 07:46:41,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2023-09-01 07:46:41,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2023-09-01 07:46:41,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:41,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2023-09-01 07:46:41,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:41,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:41,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:41,469 INFO L175 Difference]: Start difference. First operand has 101 places, 92 transitions, 240 flow. Second operand 3 states and 706 transitions. [2023-09-01 07:46:41,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 130 transitions, 548 flow [2023-09-01 07:46:41,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 130 transitions, 536 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 07:46:41,474 INFO L231 Difference]: Finished difference. Result has 101 places, 94 transitions, 258 flow [2023-09-01 07:46:41,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=101, PETRI_TRANSITIONS=94} [2023-09-01 07:46:41,478 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -4 predicate places. [2023-09-01 07:46:41,478 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 94 transitions, 258 flow [2023-09-01 07:46:41,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:41,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:41,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:41,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:46:41,479 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread6Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:41,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:41,480 INFO L85 PathProgramCache]: Analyzing trace with hash 215880153, now seen corresponding path program 1 times [2023-09-01 07:46:41,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:41,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108447608] [2023-09-01 07:46:41,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:41,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:41,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:41,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108447608] [2023-09-01 07:46:41,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108447608] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:41,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:41,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:46:41,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949259647] [2023-09-01 07:46:41,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:41,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:46:41,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:46:41,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:46:41,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 396 [2023-09-01 07:46:41,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 94 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:41,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:41,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 396 [2023-09-01 07:46:41,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:45,768 INFO L130 PetriNetUnfolder]: 54845/76524 cut-off events. [2023-09-01 07:46:45,769 INFO L131 PetriNetUnfolder]: For 20062/20062 co-relation queries the response was YES. [2023-09-01 07:46:45,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174190 conditions, 76524 events. 54845/76524 cut-off events. For 20062/20062 co-relation queries the response was YES. Maximal size of possible extension queue 2369. Compared 510874 event pairs, 11626 based on Foata normal form. 1640/67931 useless extension candidates. Maximal degree in co-relation 174183. Up to 60520 conditions per place. [2023-09-01 07:46:46,263 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 98 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2023-09-01 07:46:46,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 132 transitions, 578 flow [2023-09-01 07:46:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:46:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:46:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2023-09-01 07:46:46,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5951178451178452 [2023-09-01 07:46:46,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2023-09-01 07:46:46,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2023-09-01 07:46:46,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:46,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2023-09-01 07:46:46,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:46,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:46,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:46,271 INFO L175 Difference]: Start difference. First operand has 101 places, 94 transitions, 258 flow. Second operand 3 states and 707 transitions. [2023-09-01 07:46:46,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 132 transitions, 578 flow [2023-09-01 07:46:46,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 132 transitions, 573 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:46:46,290 INFO L231 Difference]: Finished difference. Result has 103 places, 96 transitions, 280 flow [2023-09-01 07:46:46,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=103, PETRI_TRANSITIONS=96} [2023-09-01 07:46:46,291 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -2 predicate places. [2023-09-01 07:46:46,291 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 96 transitions, 280 flow [2023-09-01 07:46:46,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:46,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:46,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:46,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:46:46,292 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:46,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1230357125, now seen corresponding path program 1 times [2023-09-01 07:46:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:46,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435370391] [2023-09-01 07:46:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:46,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:46,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435370391] [2023-09-01 07:46:46,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435370391] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:46,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:46,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:46:46,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507610813] [2023-09-01 07:46:46,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:46,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:46:46,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:46,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:46:46,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:46:46,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 396 [2023-09-01 07:46:46,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 96 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:46,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:46,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 396 [2023-09-01 07:46:46,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:50,734 INFO L130 PetriNetUnfolder]: 47095/65308 cut-off events. [2023-09-01 07:46:50,734 INFO L131 PetriNetUnfolder]: For 24112/24112 co-relation queries the response was YES. [2023-09-01 07:46:50,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155532 conditions, 65308 events. 47095/65308 cut-off events. For 24112/24112 co-relation queries the response was YES. Maximal size of possible extension queue 1888. Compared 427418 event pairs, 41877 based on Foata normal form. 0/57267 useless extension candidates. Maximal degree in co-relation 155524. Up to 60584 conditions per place. [2023-09-01 07:46:51,162 INFO L137 encePairwiseOnDemand]: 393/396 looper letters, 62 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2023-09-01 07:46:51,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 398 flow [2023-09-01 07:46:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:46:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:46:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2023-09-01 07:46:51,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606060606060606 [2023-09-01 07:46:51,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 666 transitions. [2023-09-01 07:46:51,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 666 transitions. [2023-09-01 07:46:51,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:51,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 666 transitions. [2023-09-01 07:46:51,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:51,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:51,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:51,167 INFO L175 Difference]: Start difference. First operand has 103 places, 96 transitions, 280 flow. Second operand 3 states and 666 transitions. [2023-09-01 07:46:51,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 398 flow [2023-09-01 07:46:51,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 94 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:46:51,186 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 271 flow [2023-09-01 07:46:51,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2023-09-01 07:46:51,187 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -3 predicate places. [2023-09-01 07:46:51,187 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 271 flow [2023-09-01 07:46:51,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:51,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:51,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:51,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:46:51,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:51,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:51,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1230357124, now seen corresponding path program 1 times [2023-09-01 07:46:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567540418] [2023-09-01 07:46:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:51,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:51,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567540418] [2023-09-01 07:46:51,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567540418] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:51,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:51,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:46:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055815173] [2023-09-01 07:46:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:51,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:46:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:46:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:46:51,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 396 [2023-09-01 07:46:51,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 199.4) internal successors, (997), 5 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:51,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:51,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 396 [2023-09-01 07:46:51,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:46:58,581 INFO L130 PetriNetUnfolder]: 85483/120494 cut-off events. [2023-09-01 07:46:58,581 INFO L131 PetriNetUnfolder]: For 34998/34998 co-relation queries the response was YES. [2023-09-01 07:46:58,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277549 conditions, 120494 events. 85483/120494 cut-off events. For 34998/34998 co-relation queries the response was YES. Maximal size of possible extension queue 3517. Compared 877804 event pairs, 14099 based on Foata normal form. 570/108347 useless extension candidates. Maximal degree in co-relation 277541. Up to 55313 conditions per place. [2023-09-01 07:46:59,396 INFO L137 encePairwiseOnDemand]: 391/396 looper letters, 225 selfloop transitions, 7 changer transitions 0/261 dead transitions. [2023-09-01 07:46:59,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 261 transitions, 1261 flow [2023-09-01 07:46:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:46:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:46:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1393 transitions. [2023-09-01 07:46:59,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5862794612794613 [2023-09-01 07:46:59,400 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1393 transitions. [2023-09-01 07:46:59,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1393 transitions. [2023-09-01 07:46:59,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:46:59,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1393 transitions. [2023-09-01 07:46:59,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:59,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 396.0) internal successors, (2772), 7 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:59,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 396.0) internal successors, (2772), 7 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:59,406 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 271 flow. Second operand 6 states and 1393 transitions. [2023-09-01 07:46:59,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 261 transitions, 1261 flow [2023-09-01 07:46:59,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 261 transitions, 1260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:46:59,433 INFO L231 Difference]: Finished difference. Result has 107 places, 96 transitions, 300 flow [2023-09-01 07:46:59,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=107, PETRI_TRANSITIONS=96} [2023-09-01 07:46:59,434 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2023-09-01 07:46:59,434 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 96 transitions, 300 flow [2023-09-01 07:46:59,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.4) internal successors, (997), 5 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:59,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:46:59,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:46:59,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 07:46:59,435 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:46:59,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:46:59,435 INFO L85 PathProgramCache]: Analyzing trace with hash 15487186, now seen corresponding path program 1 times [2023-09-01 07:46:59,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:46:59,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969634116] [2023-09-01 07:46:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:46:59,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:46:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:46:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:46:59,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:46:59,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969634116] [2023-09-01 07:46:59,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969634116] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:46:59,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:46:59,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:46:59,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331338001] [2023-09-01 07:46:59,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:46:59,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:46:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:46:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:46:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:46:59,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 396 [2023-09-01 07:46:59,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 96 transitions, 300 flow. Second operand has 5 states, 5 states have (on average 199.2) internal successors, (996), 5 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:46:59,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:46:59,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 396 [2023-09-01 07:46:59,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:08,852 INFO L130 PetriNetUnfolder]: 96687/134663 cut-off events. [2023-09-01 07:47:08,852 INFO L131 PetriNetUnfolder]: For 52472/52472 co-relation queries the response was YES. [2023-09-01 07:47:09,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320573 conditions, 134663 events. 96687/134663 cut-off events. For 52472/52472 co-relation queries the response was YES. Maximal size of possible extension queue 3923. Compared 969706 event pairs, 8871 based on Foata normal form. 1900/120624 useless extension candidates. Maximal degree in co-relation 320563. Up to 45667 conditions per place. [2023-09-01 07:47:09,773 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 252 selfloop transitions, 15 changer transitions 0/297 dead transitions. [2023-09-01 07:47:09,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 297 transitions, 1484 flow [2023-09-01 07:47:09,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 07:47:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 07:47:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1619 transitions. [2023-09-01 07:47:09,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.584054834054834 [2023-09-01 07:47:09,776 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1619 transitions. [2023-09-01 07:47:09,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1619 transitions. [2023-09-01 07:47:09,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:09,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1619 transitions. [2023-09-01 07:47:09,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 231.28571428571428) internal successors, (1619), 7 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:09,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 396.0) internal successors, (3168), 8 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:09,784 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 396.0) internal successors, (3168), 8 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:09,784 INFO L175 Difference]: Start difference. First operand has 107 places, 96 transitions, 300 flow. Second operand 7 states and 1619 transitions. [2023-09-01 07:47:09,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 297 transitions, 1484 flow [2023-09-01 07:47:11,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 297 transitions, 1469 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 07:47:11,530 INFO L231 Difference]: Finished difference. Result has 112 places, 104 transitions, 368 flow [2023-09-01 07:47:11,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=368, PETRI_PLACES=112, PETRI_TRANSITIONS=104} [2023-09-01 07:47:11,531 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2023-09-01 07:47:11,531 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 104 transitions, 368 flow [2023-09-01 07:47:11,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.2) internal successors, (996), 5 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:11,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:11,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:11,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 07:47:11,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:47:11,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1204637147, now seen corresponding path program 1 times [2023-09-01 07:47:11,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:11,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081852135] [2023-09-01 07:47:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:11,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:11,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:11,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081852135] [2023-09-01 07:47:11,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081852135] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:11,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:11,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:11,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801425303] [2023-09-01 07:47:11,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:11,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:47:11,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:11,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:47:11,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:47:11,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 396 [2023-09-01 07:47:11,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 104 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:11,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:11,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 396 [2023-09-01 07:47:11,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:19,122 INFO L130 PetriNetUnfolder]: 78959/111860 cut-off events. [2023-09-01 07:47:19,122 INFO L131 PetriNetUnfolder]: For 76521/77487 co-relation queries the response was YES. [2023-09-01 07:47:19,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279642 conditions, 111860 events. 78959/111860 cut-off events. For 76521/77487 co-relation queries the response was YES. Maximal size of possible extension queue 3464. Compared 812464 event pairs, 58790 based on Foata normal form. 1204/97833 useless extension candidates. Maximal degree in co-relation 279630. Up to 92207 conditions per place. [2023-09-01 07:47:19,961 INFO L137 encePairwiseOnDemand]: 393/396 looper letters, 102 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2023-09-01 07:47:19,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 138 transitions, 686 flow [2023-09-01 07:47:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:47:19,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:47:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 693 transitions. [2023-09-01 07:47:19,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-09-01 07:47:19,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 693 transitions. [2023-09-01 07:47:19,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 693 transitions. [2023-09-01 07:47:19,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:19,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 693 transitions. [2023-09-01 07:47:19,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:19,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:19,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:19,969 INFO L175 Difference]: Start difference. First operand has 112 places, 104 transitions, 368 flow. Second operand 3 states and 693 transitions. [2023-09-01 07:47:19,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 138 transitions, 686 flow [2023-09-01 07:47:22,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 138 transitions, 664 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-09-01 07:47:22,502 INFO L231 Difference]: Finished difference. Result has 111 places, 101 transitions, 343 flow [2023-09-01 07:47:22,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=111, PETRI_TRANSITIONS=101} [2023-09-01 07:47:22,504 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 6 predicate places. [2023-09-01 07:47:22,504 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 343 flow [2023-09-01 07:47:22,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:22,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:22,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:22,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 07:47:22,505 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:47:22,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1310937781, now seen corresponding path program 1 times [2023-09-01 07:47:22,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:22,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678339830] [2023-09-01 07:47:22,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:22,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:22,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678339830] [2023-09-01 07:47:22,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678339830] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:22,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:22,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 07:47:22,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744009426] [2023-09-01 07:47:22,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:22,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 07:47:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 07:47:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:47:22,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 396 [2023-09-01 07:47:22,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 101 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:22,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:22,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 396 [2023-09-01 07:47:22,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:29,435 INFO L130 PetriNetUnfolder]: 70947/102677 cut-off events. [2023-09-01 07:47:29,436 INFO L131 PetriNetUnfolder]: For 46840/47980 co-relation queries the response was YES. [2023-09-01 07:47:29,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248629 conditions, 102677 events. 70947/102677 cut-off events. For 46840/47980 co-relation queries the response was YES. Maximal size of possible extension queue 3097. Compared 771698 event pairs, 7196 based on Foata normal form. 4750/94504 useless extension candidates. Maximal degree in co-relation 248617. Up to 38030 conditions per place. [2023-09-01 07:47:30,229 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 248 selfloop transitions, 9 changer transitions 29/317 dead transitions. [2023-09-01 07:47:30,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 317 transitions, 1616 flow [2023-09-01 07:47:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 07:47:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 07:47:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1810 transitions. [2023-09-01 07:47:30,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5713383838383839 [2023-09-01 07:47:30,232 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1810 transitions. [2023-09-01 07:47:30,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1810 transitions. [2023-09-01 07:47:30,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:30,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1810 transitions. [2023-09-01 07:47:30,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 226.25) internal successors, (1810), 8 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:30,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 396.0) internal successors, (3564), 9 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:30,242 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 396.0) internal successors, (3564), 9 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:30,242 INFO L175 Difference]: Start difference. First operand has 111 places, 101 transitions, 343 flow. Second operand 8 states and 1810 transitions. [2023-09-01 07:47:30,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 317 transitions, 1616 flow [2023-09-01 07:47:32,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 317 transitions, 1612 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:47:32,057 INFO L231 Difference]: Finished difference. Result has 115 places, 95 transitions, 338 flow [2023-09-01 07:47:32,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=338, PETRI_PLACES=115, PETRI_TRANSITIONS=95} [2023-09-01 07:47:32,058 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 10 predicate places. [2023-09-01 07:47:32,058 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 95 transitions, 338 flow [2023-09-01 07:47:32,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:32,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:32,059 INFO L208 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] [2023-09-01 07:47:32,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 07:47:32,059 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:47:32,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:32,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1030656630, now seen corresponding path program 1 times [2023-09-01 07:47:32,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:32,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829193000] [2023-09-01 07:47:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:32,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:32,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:32,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829193000] [2023-09-01 07:47:32,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829193000] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:32,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:32,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:32,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546345172] [2023-09-01 07:47:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:32,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:47:32,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:47:32,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:47:32,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 396 [2023-09-01 07:47:32,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 95 transitions, 338 flow. Second operand has 5 states, 5 states have (on average 200.8) internal successors, (1004), 5 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:32,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:32,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 396 [2023-09-01 07:47:32,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:40,382 INFO L130 PetriNetUnfolder]: 89833/124806 cut-off events. [2023-09-01 07:47:40,382 INFO L131 PetriNetUnfolder]: For 73056/73056 co-relation queries the response was YES. [2023-09-01 07:47:40,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302214 conditions, 124806 events. 89833/124806 cut-off events. For 73056/73056 co-relation queries the response was YES. Maximal size of possible extension queue 4009. Compared 892948 event pairs, 8582 based on Foata normal form. 0/110943 useless extension candidates. Maximal degree in co-relation 302202. Up to 42607 conditions per place. [2023-09-01 07:47:41,305 INFO L137 encePairwiseOnDemand]: 387/396 looper letters, 229 selfloop transitions, 15 changer transitions 0/277 dead transitions. [2023-09-01 07:47:41,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 277 transitions, 1559 flow [2023-09-01 07:47:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 07:47:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 07:47:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1576 transitions. [2023-09-01 07:47:41,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5685425685425686 [2023-09-01 07:47:41,310 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1576 transitions. [2023-09-01 07:47:41,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1576 transitions. [2023-09-01 07:47:41,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:41,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1576 transitions. [2023-09-01 07:47:41,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 225.14285714285714) internal successors, (1576), 7 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:41,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 396.0) internal successors, (3168), 8 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:41,317 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 396.0) internal successors, (3168), 8 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:41,317 INFO L175 Difference]: Start difference. First operand has 115 places, 95 transitions, 338 flow. Second operand 7 states and 1576 transitions. [2023-09-01 07:47:41,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 277 transitions, 1559 flow [2023-09-01 07:47:41,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 277 transitions, 1528 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-09-01 07:47:41,398 INFO L231 Difference]: Finished difference. Result has 114 places, 104 transitions, 406 flow [2023-09-01 07:47:41,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=114, PETRI_TRANSITIONS=104} [2023-09-01 07:47:41,399 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 9 predicate places. [2023-09-01 07:47:41,399 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 104 transitions, 406 flow [2023-09-01 07:47:41,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.8) internal successors, (1004), 5 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:41,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:41,400 INFO L208 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] [2023-09-01 07:47:41,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 07:47:41,400 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:47:41,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:41,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1030656629, now seen corresponding path program 1 times [2023-09-01 07:47:41,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:41,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814275688] [2023-09-01 07:47:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:41,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:41,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:41,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814275688] [2023-09-01 07:47:41,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814275688] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:41,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:41,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:41,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124995149] [2023-09-01 07:47:41,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:41,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:47:41,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:47:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:47:41,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 396 [2023-09-01 07:47:41,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 104 transitions, 406 flow. Second operand has 5 states, 5 states have (on average 200.8) internal successors, (1004), 5 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:41,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:41,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 396 [2023-09-01 07:47:41,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:49,291 INFO L130 PetriNetUnfolder]: 80813/113314 cut-off events. [2023-09-01 07:47:49,292 INFO L131 PetriNetUnfolder]: For 76868/76868 co-relation queries the response was YES. [2023-09-01 07:47:49,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288263 conditions, 113314 events. 80813/113314 cut-off events. For 76868/76868 co-relation queries the response was YES. Maximal size of possible extension queue 3602. Compared 816391 event pairs, 8170 based on Foata normal form. 2472/103433 useless extension candidates. Maximal degree in co-relation 288249. Up to 34671 conditions per place. [2023-09-01 07:47:50,158 INFO L137 encePairwiseOnDemand]: 387/396 looper letters, 227 selfloop transitions, 15 changer transitions 0/275 dead transitions. [2023-09-01 07:47:50,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 275 transitions, 1565 flow [2023-09-01 07:47:50,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 07:47:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 07:47:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1574 transitions. [2023-09-01 07:47:50,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5678210678210678 [2023-09-01 07:47:50,160 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1574 transitions. [2023-09-01 07:47:50,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1574 transitions. [2023-09-01 07:47:50,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:50,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1574 transitions. [2023-09-01 07:47:50,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 224.85714285714286) internal successors, (1574), 7 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:50,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 396.0) internal successors, (3168), 8 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:50,166 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 396.0) internal successors, (3168), 8 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:50,166 INFO L175 Difference]: Start difference. First operand has 114 places, 104 transitions, 406 flow. Second operand 7 states and 1574 transitions. [2023-09-01 07:47:50,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 275 transitions, 1565 flow [2023-09-01 07:47:51,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 275 transitions, 1551 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-09-01 07:47:51,552 INFO L231 Difference]: Finished difference. Result has 118 places, 103 transitions, 418 flow [2023-09-01 07:47:51,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=418, PETRI_PLACES=118, PETRI_TRANSITIONS=103} [2023-09-01 07:47:51,553 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 13 predicate places. [2023-09-01 07:47:51,553 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 103 transitions, 418 flow [2023-09-01 07:47:51,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.8) internal successors, (1004), 5 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:51,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:51,553 INFO L208 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] [2023-09-01 07:47:51,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 07:47:51,553 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread6Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:47:51,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:51,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1030655513, now seen corresponding path program 1 times [2023-09-01 07:47:51,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:51,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450721424] [2023-09-01 07:47:51,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:51,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:51,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:51,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:51,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450721424] [2023-09-01 07:47:51,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450721424] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:51,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:51,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:51,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3562450] [2023-09-01 07:47:51,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:51,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:47:51,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:51,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:47:51,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:47:51,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 396 [2023-09-01 07:47:51,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 103 transitions, 418 flow. Second operand has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:51,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:51,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 396 [2023-09-01 07:47:51,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:48:02,496 INFO L130 PetriNetUnfolder]: 106895/153766 cut-off events. [2023-09-01 07:48:02,497 INFO L131 PetriNetUnfolder]: For 112096/112096 co-relation queries the response was YES. [2023-09-01 07:48:03,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396666 conditions, 153766 events. 106895/153766 cut-off events. For 112096/112096 co-relation queries the response was YES. Maximal size of possible extension queue 4970. Compared 1196282 event pairs, 13526 based on Foata normal form. 618/137729 useless extension candidates. Maximal degree in co-relation 396651. Up to 59479 conditions per place. [2023-09-01 07:48:03,711 INFO L137 encePairwiseOnDemand]: 391/396 looper letters, 203 selfloop transitions, 10 changer transitions 0/249 dead transitions. [2023-09-01 07:48:03,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 249 transitions, 1436 flow [2023-09-01 07:48:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:48:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:48:03,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1347 transitions. [2023-09-01 07:48:03,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5669191919191919 [2023-09-01 07:48:03,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1347 transitions. [2023-09-01 07:48:03,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1347 transitions. [2023-09-01 07:48:03,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:48:03,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1347 transitions. [2023-09-01 07:48:03,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 224.5) internal successors, (1347), 6 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:03,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 396.0) internal successors, (2772), 7 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:03,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 396.0) internal successors, (2772), 7 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:03,721 INFO L175 Difference]: Start difference. First operand has 118 places, 103 transitions, 418 flow. Second operand 6 states and 1347 transitions. [2023-09-01 07:48:03,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 249 transitions, 1436 flow [2023-09-01 07:48:04,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 249 transitions, 1393 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-09-01 07:48:04,656 INFO L231 Difference]: Finished difference. Result has 118 places, 106 transitions, 433 flow [2023-09-01 07:48:04,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=118, PETRI_TRANSITIONS=106} [2023-09-01 07:48:04,657 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 13 predicate places. [2023-09-01 07:48:04,657 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 106 transitions, 433 flow [2023-09-01 07:48:04,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:04,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:48:04,658 INFO L208 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] [2023-09-01 07:48:04,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 07:48:04,658 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread6Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:48:04,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:48:04,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1608804888, now seen corresponding path program 1 times [2023-09-01 07:48:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:48:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455795146] [2023-09-01 07:48:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:48:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:48:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:48:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:48:04,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:48:04,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455795146] [2023-09-01 07:48:04,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455795146] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:48:04,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:48:04,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:48:04,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610525053] [2023-09-01 07:48:04,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:48:04,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:48:04,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:48:04,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:48:04,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:48:04,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 396 [2023-09-01 07:48:04,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 106 transitions, 433 flow. Second operand has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:04,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:48:04,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 396 [2023-09-01 07:48:04,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:48:15,739 INFO L130 PetriNetUnfolder]: 104846/150687 cut-off events. [2023-09-01 07:48:15,740 INFO L131 PetriNetUnfolder]: For 110058/110058 co-relation queries the response was YES. [2023-09-01 07:48:16,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386772 conditions, 150687 events. 104846/150687 cut-off events. For 110058/110058 co-relation queries the response was YES. Maximal size of possible extension queue 4836. Compared 1166948 event pairs, 13320 based on Foata normal form. 618/134976 useless extension candidates. Maximal degree in co-relation 386755. Up to 59479 conditions per place. [2023-09-01 07:48:17,258 INFO L137 encePairwiseOnDemand]: 391/396 looper letters, 202 selfloop transitions, 10 changer transitions 0/248 dead transitions. [2023-09-01 07:48:17,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 248 transitions, 1420 flow [2023-09-01 07:48:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:48:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:48:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1346 transitions. [2023-09-01 07:48:17,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5664983164983165 [2023-09-01 07:48:17,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1346 transitions. [2023-09-01 07:48:17,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1346 transitions. [2023-09-01 07:48:17,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:48:17,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1346 transitions. [2023-09-01 07:48:17,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:17,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 396.0) internal successors, (2772), 7 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:17,265 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 396.0) internal successors, (2772), 7 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:17,265 INFO L175 Difference]: Start difference. First operand has 118 places, 106 transitions, 433 flow. Second operand 6 states and 1346 transitions. [2023-09-01 07:48:17,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 248 transitions, 1420 flow [2023-09-01 07:48:20,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 248 transitions, 1411 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-09-01 07:48:20,040 INFO L231 Difference]: Finished difference. Result has 120 places, 105 transitions, 439 flow [2023-09-01 07:48:20,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=120, PETRI_TRANSITIONS=105} [2023-09-01 07:48:20,041 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 15 predicate places. [2023-09-01 07:48:20,041 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 105 transitions, 439 flow [2023-09-01 07:48:20,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:20,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:48:20,041 INFO L208 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] [2023-09-01 07:48:20,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 07:48:20,042 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread6Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:48:20,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:48:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1616496020, now seen corresponding path program 1 times [2023-09-01 07:48:20,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:48:20,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735173783] [2023-09-01 07:48:20,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:48:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:48:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:48:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:48:20,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:48:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735173783] [2023-09-01 07:48:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735173783] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:48:20,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:48:20,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:48:20,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627032760] [2023-09-01 07:48:20,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:48:20,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:48:20,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:48:20,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:48:20,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:48:20,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 396 [2023-09-01 07:48:20,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 105 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:20,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:48:20,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 396 [2023-09-01 07:48:20,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:48:28,280 INFO L130 PetriNetUnfolder]: 71564/106413 cut-off events. [2023-09-01 07:48:28,280 INFO L131 PetriNetUnfolder]: For 111126/111550 co-relation queries the response was YES. [2023-09-01 07:48:28,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269628 conditions, 106413 events. 71564/106413 cut-off events. For 111126/111550 co-relation queries the response was YES. Maximal size of possible extension queue 3668. Compared 855831 event pairs, 59068 based on Foata normal form. 0/94808 useless extension candidates. Maximal degree in co-relation 269612. Up to 92809 conditions per place. [2023-09-01 07:48:29,168 INFO L137 encePairwiseOnDemand]: 393/396 looper letters, 61 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2023-09-01 07:48:29,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 101 transitions, 542 flow [2023-09-01 07:48:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:48:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:48:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2023-09-01 07:48:29,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5488215488215489 [2023-09-01 07:48:29,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2023-09-01 07:48:29,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2023-09-01 07:48:29,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:48:29,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2023-09-01 07:48:29,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:29,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:29,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:29,173 INFO L175 Difference]: Start difference. First operand has 120 places, 105 transitions, 439 flow. Second operand 3 states and 652 transitions. [2023-09-01 07:48:29,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 101 transitions, 542 flow [2023-09-01 07:48:29,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 101 transitions, 522 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 07:48:29,380 INFO L231 Difference]: Finished difference. Result has 115 places, 101 transitions, 400 flow [2023-09-01 07:48:29,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=115, PETRI_TRANSITIONS=101} [2023-09-01 07:48:29,380 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 10 predicate places. [2023-09-01 07:48:29,380 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 101 transitions, 400 flow [2023-09-01 07:48:29,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:29,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:48:29,381 INFO L208 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] [2023-09-01 07:48:29,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 07:48:29,381 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread6Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:48:29,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:48:29,382 INFO L85 PathProgramCache]: Analyzing trace with hash -360243179, now seen corresponding path program 1 times [2023-09-01 07:48:29,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:48:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753123044] [2023-09-01 07:48:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:48:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:48:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:48:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:48:29,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:48:29,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753123044] [2023-09-01 07:48:29,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753123044] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:48:29,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:48:29,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 07:48:29,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330680375] [2023-09-01 07:48:29,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:48:29,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:48:29,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:48:29,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:48:29,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:48:29,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 396 [2023-09-01 07:48:29,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 101 transitions, 400 flow. Second operand has 4 states, 4 states have (on average 204.25) internal successors, (817), 4 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:29,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:48:29,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 396 [2023-09-01 07:48:29,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:48:38,187 INFO L130 PetriNetUnfolder]: 69760/104767 cut-off events. [2023-09-01 07:48:38,188 INFO L131 PetriNetUnfolder]: For 88281/88713 co-relation queries the response was YES. [2023-09-01 07:48:38,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261280 conditions, 104767 events. 69760/104767 cut-off events. For 88281/88713 co-relation queries the response was YES. Maximal size of possible extension queue 3616. Compared 851118 event pairs, 42854 based on Foata normal form. 604/95461 useless extension candidates. Maximal degree in co-relation 261264. Up to 80090 conditions per place. [2023-09-01 07:48:39,551 INFO L137 encePairwiseOnDemand]: 392/396 looper letters, 121 selfloop transitions, 3 changer transitions 0/162 dead transitions. [2023-09-01 07:48:39,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 162 transitions, 897 flow [2023-09-01 07:48:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:48:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:48:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 892 transitions. [2023-09-01 07:48:39,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5631313131313131 [2023-09-01 07:48:39,553 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 892 transitions. [2023-09-01 07:48:39,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 892 transitions. [2023-09-01 07:48:39,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:48:39,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 892 transitions. [2023-09-01 07:48:39,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:39,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:39,556 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:39,556 INFO L175 Difference]: Start difference. First operand has 115 places, 101 transitions, 400 flow. Second operand 4 states and 892 transitions. [2023-09-01 07:48:39,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 162 transitions, 897 flow [2023-09-01 07:48:42,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 162 transitions, 886 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-09-01 07:48:42,931 INFO L231 Difference]: Finished difference. Result has 115 places, 98 transitions, 387 flow [2023-09-01 07:48:42,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=387, PETRI_PLACES=115, PETRI_TRANSITIONS=98} [2023-09-01 07:48:42,931 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 10 predicate places. [2023-09-01 07:48:42,932 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 98 transitions, 387 flow [2023-09-01 07:48:42,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.25) internal successors, (817), 4 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:42,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:48:42,932 INFO L208 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] [2023-09-01 07:48:42,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 07:48:42,932 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread6Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-09-01 07:48:42,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:48:42,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1717003059, now seen corresponding path program 1 times [2023-09-01 07:48:42,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:48:42,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145848218] [2023-09-01 07:48:42,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:48:42,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:48:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:48:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:48:43,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:48:43,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145848218] [2023-09-01 07:48:43,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145848218] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:48:43,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:48:43,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 07:48:43,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827253986] [2023-09-01 07:48:43,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:48:43,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 07:48:43,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:48:43,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 07:48:43,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-01 07:48:43,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 396 [2023-09-01 07:48:43,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 98 transitions, 387 flow. Second operand has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:43,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:48:43,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 396 [2023-09-01 07:48:43,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:48:50,144 INFO L130 PetriNetUnfolder]: 64382/96755 cut-off events. [2023-09-01 07:48:50,144 INFO L131 PetriNetUnfolder]: For 74695/75107 co-relation queries the response was YES. [2023-09-01 07:48:50,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238412 conditions, 96755 events. 64382/96755 cut-off events. For 74695/75107 co-relation queries the response was YES. Maximal size of possible extension queue 3177. Compared 771066 event pairs, 2762 based on Foata normal form. 4532/93442 useless extension candidates. Maximal degree in co-relation 238396. Up to 33988 conditions per place. [2023-09-01 07:48:50,687 INFO L137 encePairwiseOnDemand]: 386/396 looper letters, 0 selfloop transitions, 0 changer transitions 426/426 dead transitions. [2023-09-01 07:48:50,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 426 transitions, 2486 flow [2023-09-01 07:48:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 07:48:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 07:48:50,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2628 transitions. [2023-09-01 07:48:50,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2023-09-01 07:48:50,691 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2628 transitions. [2023-09-01 07:48:50,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2628 transitions. [2023-09-01 07:48:50,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:48:50,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2628 transitions. [2023-09-01 07:48:50,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 219.0) internal successors, (2628), 12 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:50,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 396.0) internal successors, (5148), 13 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:50,699 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 396.0) internal successors, (5148), 13 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:50,699 INFO L175 Difference]: Start difference. First operand has 115 places, 98 transitions, 387 flow. Second operand 12 states and 2628 transitions. [2023-09-01 07:48:50,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 426 transitions, 2486 flow [2023-09-01 07:48:52,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 426 transitions, 2480 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 07:48:52,780 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2023-09-01 07:48:52,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2023-09-01 07:48:52,780 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 17 predicate places. [2023-09-01 07:48:52,781 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2023-09-01 07:48:52,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:48:52,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2023-09-01 07:48:52,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 42 remaining) [2023-09-01 07:48:52,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2023-09-01 07:48:52,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2023-09-01 07:48:52,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2023-09-01 07:48:52,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2023-09-01 07:48:52,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2023-09-01 07:48:52,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2023-09-01 07:48:52,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2023-09-01 07:48:52,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2023-09-01 07:48:52,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 42 remaining) [2023-09-01 07:48:52,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 42 remaining) [2023-09-01 07:48:52,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 42 remaining) [2023-09-01 07:48:52,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 42 remaining) [2023-09-01 07:48:52,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2023-09-01 07:48:52,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2023-09-01 07:48:52,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2023-09-01 07:48:52,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2023-09-01 07:48:52,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2023-09-01 07:48:52,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2023-09-01 07:48:52,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 42 remaining) [2023-09-01 07:48:52,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 42 remaining) [2023-09-01 07:48:52,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 42 remaining) [2023-09-01 07:48:52,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 42 remaining) [2023-09-01 07:48:52,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2023-09-01 07:48:52,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2023-09-01 07:48:52,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2023-09-01 07:48:52,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2023-09-01 07:48:52,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2023-09-01 07:48:52,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2023-09-01 07:48:52,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2023-09-01 07:48:52,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Thread1of1ForFork3Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2023-09-01 07:48:52,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2023-09-01 07:48:52,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2023-09-01 07:48:52,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2023-09-01 07:48:52,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2023-09-01 07:48:52,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 07:48:52,791 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:48:52,796 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:48:52,796 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:48:52,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:48:52 BasicIcfg [2023-09-01 07:48:52,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:48:52,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:48:52,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:48:52,800 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:48:52,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:45:37" (3/4) ... [2023-09-01 07:48:52,803 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 07:48:52,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-09-01 07:48:52,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-09-01 07:48:52,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-09-01 07:48:52,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-09-01 07:48:52,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2023-09-01 07:48:52,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread6 [2023-09-01 07:48:52,810 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-09-01 07:48:52,810 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 07:48:52,810 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 07:48:52,811 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 07:48:52,840 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:48:52,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:48:52,841 INFO L158 Benchmark]: Toolchain (without parser) took 196291.54ms. Allocated memory was 69.2MB in the beginning and 16.1GB in the end (delta: 16.0GB). Free memory was 46.6MB in the beginning and 14.1GB in the end (delta: -14.1GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2023-09-01 07:48:52,841 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:48:52,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.00ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 34.0MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 07:48:52,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.89ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 49.3MB in the end (delta: -15.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-09-01 07:48:52,842 INFO L158 Benchmark]: Boogie Preprocessor took 62.08ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 47.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:48:52,842 INFO L158 Benchmark]: RCFGBuilder took 812.91ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 47.5MB in the beginning and 50.8MB in the end (delta: -3.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-09-01 07:48:52,843 INFO L158 Benchmark]: TraceAbstraction took 195001.11ms. Allocated memory was 83.9MB in the beginning and 16.1GB in the end (delta: 16.0GB). Free memory was 50.4MB in the beginning and 14.1GB in the end (delta: -14.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2023-09-01 07:48:52,843 INFO L158 Benchmark]: Witness Printer took 40.67ms. Allocated memory is still 16.1GB. Free memory was 14.1GB in the beginning and 14.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 07:48:52,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.00ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 34.0MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.89ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 49.3MB in the end (delta: -15.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.08ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 47.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 812.91ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 47.5MB in the beginning and 50.8MB in the end (delta: -3.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 195001.11ms. Allocated memory was 83.9MB in the beginning and 16.1GB in the end (delta: 16.0GB). Free memory was 50.4MB in the beginning and 14.1GB in the end (delta: -14.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 40.67ms. Allocated memory is still 16.1GB. Free memory was 14.1GB in the beginning and 14.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 218 PlacesBefore, 105 PlacesAfterwards, 206 TransitionsBefore, 92 TransitionsAfterwards, 9812 CoEnabledTransitionPairs, 7 FixpointIterations, 76 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 142 TotalNumberOfCompositions, 68765 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33521, independent: 32645, independent conditional: 0, independent unconditional: 32645, dependent: 876, dependent conditional: 0, dependent unconditional: 876, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5447, independent: 5352, independent conditional: 0, independent unconditional: 5352, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33521, independent: 27293, independent conditional: 0, independent unconditional: 27293, dependent: 781, dependent conditional: 0, dependent unconditional: 781, unknown: 5447, unknown conditional: 0, unknown unconditional: 5447] , Statistics on independence cache: Total cache size (in pairs): 1748, Positive cache size: 1690, Positive conditional cache size: 0, Positive unconditional cache size: 1690, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 128]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 128]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 139]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 139]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 153]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 153]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 347 locations, 42 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: 194.8s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 188.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2549 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2336 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 145 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4072 IncrementalHoareTripleChecker+Invalid, 4154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 81 mSDtfsCounter, 4072 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=439occurred in iteration=15, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 1041 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 07:48:52,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE