./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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-ticket-4.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 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 15:12:55,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 15:12:55,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 15:12:55,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 15:12:55,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 15:12:55,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 15:12:55,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 15:12:55,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 15:12:55,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 15:12:55,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 15:12:55,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 15:12:55,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 15:12:55,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 15:12:55,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 15:12:55,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 15:12:55,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 15:12:55,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 15:12:55,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 15:12:55,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 15:12:55,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 15:12:55,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 15:12:55,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 15:12:55,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 15:12:55,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 15:12:55,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 15:12:55,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 15:12:55,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 15:12:55,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 15:12:55,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 15:12:55,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 15:12:55,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 15:12:55,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 15:12:55,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 15:12:55,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 15:12:55,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 15:12:55,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 15:12:55,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 15:12:55,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 15:12:55,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 15:12:55,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 15:12:55,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 15:12:55,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 15:12:55,254 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 15:12:55,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 15:12:55,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 15:12:55,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 15:12:55,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 15:12:55,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 15:12:55,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 15:12:55,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 15:12:55,258 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 15:12:55,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 15:12:55,258 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 15:12:55,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 15:12:55,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 15:12:55,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 15:12:55,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 15:12:55,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 15:12:55,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 15:12:55,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 15:12:55,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 15:12:55,260 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 15:12:55,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 15:12:55,260 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 15:12:55,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 15:12:55,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 15:12:55,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 15:12:55,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 15:12:55,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:12:55,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 15:12:55,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 15:12:55,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 15:12:55,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 15:12:55,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 15:12:55,263 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 15:12:55,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 15:12:55,263 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 15:12:55,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 15:12:55,263 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 15:12:55,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 15:12:55,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 15:12:55,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 15:12:55,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 15:12:55,562 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 15:12:55,562 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 15:12:55,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-30 15:12:56,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 15:12:56,845 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 15:12:56,846 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-30 15:12:56,855 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ea2db0d/d6cb290bde9541cf94154692e83b357e/FLAG32777803b [2023-08-30 15:12:56,875 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ea2db0d/d6cb290bde9541cf94154692e83b357e [2023-08-30 15:12:56,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 15:12:56,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 15:12:56,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 15:12:56,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 15:12:56,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 15:12:56,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:12:56" (1/1) ... [2023-08-30 15:12:56,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116b941f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:56, skipping insertion in model container [2023-08-30 15:12:56,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:12:56" (1/1) ... [2023-08-30 15:12:56,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 15:12:56,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 15:12:57,098 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-ticket-4.wvr.c[3526,3539] [2023-08-30 15:12:57,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:12:57,117 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 15:12:57,155 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-ticket-4.wvr.c[3526,3539] [2023-08-30 15:12:57,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:12:57,173 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:12:57,173 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:12:57,179 INFO L208 MainTranslator]: Completed translation [2023-08-30 15:12:57,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57 WrapperNode [2023-08-30 15:12:57,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 15:12:57,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 15:12:57,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 15:12:57,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 15:12:57,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,249 INFO L138 Inliner]: procedures = 23, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 222 [2023-08-30 15:12:57,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 15:12:57,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 15:12:57,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 15:12:57,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 15:12:57,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 15:12:57,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 15:12:57,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 15:12:57,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 15:12:57,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (1/1) ... [2023-08-30 15:12:57,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:12:57,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 15:12:57,338 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) [2023-08-30 15:12:57,349 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 [2023-08-30 15:12:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 15:12:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 15:12:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 15:12:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 15:12:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 15:12:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 15:12:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 15:12:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-30 15:12:57,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-30 15:12:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 15:12:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 15:12:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 15:12:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 15:12:57,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 15:12:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 15:12:57,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 15:12:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 15:12:57,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 15:12:57,392 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 15:12:57,522 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 15:12:57,524 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 15:12:57,925 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 15:12:58,054 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 15:12:58,055 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 15:12:58,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:58 BoogieIcfgContainer [2023-08-30 15:12:58,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 15:12:58,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 15:12:58,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 15:12:58,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 15:12:58,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:12:56" (1/3) ... [2023-08-30 15:12:58,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4578c1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:12:58, skipping insertion in model container [2023-08-30 15:12:58,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:57" (2/3) ... [2023-08-30 15:12:58,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4578c1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:12:58, skipping insertion in model container [2023-08-30 15:12:58,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:58" (3/3) ... [2023-08-30 15:12:58,065 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2023-08-30 15:12:58,073 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 15:12:58,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 15:12:58,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-30 15:12:58,081 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 15:12:58,158 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 15:12:58,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 346 flow [2023-08-30 15:12:58,262 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2023-08-30 15:12:58,263 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-08-30 15:12:58,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 153 events. 2/153 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2023-08-30 15:12:58,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 157 transitions, 346 flow [2023-08-30 15:12:58,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 133 transitions, 287 flow [2023-08-30 15:12:58,284 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 15:12:58,296 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 133 transitions, 287 flow [2023-08-30 15:12:58,300 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 133 transitions, 287 flow [2023-08-30 15:12:58,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 133 transitions, 287 flow [2023-08-30 15:12:58,352 INFO L130 PetriNetUnfolder]: 1/133 cut-off events. [2023-08-30 15:12:58,357 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 15:12:58,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 133 events. 1/133 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2023-08-30 15:12:58,361 INFO L119 LiptonReduction]: Number of co-enabled transitions 2622 [2023-08-30 15:13:02,581 INFO L134 LiptonReduction]: Checked pairs total: 16009 [2023-08-30 15:13:02,582 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-08-30 15:13:02,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 15:13:02,598 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;@40a7d2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 15:13:02,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-30 15:13:02,601 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-30 15:13:02,602 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 15:13:02,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:02,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 15:13:02,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:02,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:02,607 INFO L85 PathProgramCache]: Analyzing trace with hash 634391, now seen corresponding path program 1 times [2023-08-30 15:13:02,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:02,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316231945] [2023-08-30 15:13:02,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:02,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:02,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:02,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:02,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316231945] [2023-08-30 15:13:02,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316231945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:02,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:02,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 15:13:02,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917655376] [2023-08-30 15:13:02,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:02,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:13:03,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:03,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:13:03,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:13:03,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-30 15:13:03,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:03,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:03,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-30 15:13:03,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:06,452 INFO L130 PetriNetUnfolder]: 29677/41318 cut-off events. [2023-08-30 15:13:06,452 INFO L131 PetriNetUnfolder]: For 2151/2151 co-relation queries the response was YES. [2023-08-30 15:13:06,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82980 conditions, 41318 events. 29677/41318 cut-off events. For 2151/2151 co-relation queries the response was YES. Maximal size of possible extension queue 2725. Compared 288097 event pairs, 23032 based on Foata normal form. 0/22122 useless extension candidates. Maximal degree in co-relation 82100. Up to 39966 conditions per place. [2023-08-30 15:13:06,835 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 49 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-08-30 15:13:06,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 256 flow [2023-08-30 15:13:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:13:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:13:06,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2023-08-30 15:13:06,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5578231292517006 [2023-08-30 15:13:06,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2023-08-30 15:13:06,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2023-08-30 15:13:06,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:06,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2023-08-30 15:13:06,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:06,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:06,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:06,875 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 117 flow. Second operand 3 states and 410 transitions. [2023-08-30 15:13:06,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 256 flow [2023-08-30 15:13:06,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 238 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-30 15:13:06,903 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 151 flow [2023-08-30 15:13:06,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2023-08-30 15:13:06,910 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2023-08-30 15:13:06,911 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 151 flow [2023-08-30 15:13:06,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:06,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:06,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:13:06,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 15:13:06,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:06,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1723601242, now seen corresponding path program 1 times [2023-08-30 15:13:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:06,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727671919] [2023-08-30 15:13:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:06,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:07,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:07,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727671919] [2023-08-30 15:13:07,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727671919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:07,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:07,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:13:07,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275805256] [2023-08-30 15:13:07,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:07,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:13:07,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:07,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:13:07,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:13:07,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-30 15:13:07,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:07,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:07,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-30 15:13:07,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:08,781 INFO L130 PetriNetUnfolder]: 17791/24989 cut-off events. [2023-08-30 15:13:08,781 INFO L131 PetriNetUnfolder]: For 2802/2802 co-relation queries the response was YES. [2023-08-30 15:13:08,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56485 conditions, 24989 events. 17791/24989 cut-off events. For 2802/2802 co-relation queries the response was YES. Maximal size of possible extension queue 1677. Compared 169257 event pairs, 16781 based on Foata normal form. 0/14851 useless extension candidates. Maximal degree in co-relation 40921. Up to 24138 conditions per place. [2023-08-30 15:13:08,943 INFO L137 encePairwiseOnDemand]: 240/245 looper letters, 42 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2023-08-30 15:13:08,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 48 transitions, 221 flow [2023-08-30 15:13:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:13:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:13:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2023-08-30 15:13:08,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5319727891156463 [2023-08-30 15:13:08,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2023-08-30 15:13:08,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2023-08-30 15:13:08,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:08,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2023-08-30 15:13:08,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:08,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:08,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:08,951 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 151 flow. Second operand 3 states and 391 transitions. [2023-08-30 15:13:08,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 48 transitions, 221 flow [2023-08-30 15:13:08,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 48 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:13:08,954 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 132 flow [2023-08-30 15:13:08,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2023-08-30 15:13:08,955 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2023-08-30 15:13:08,956 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 132 flow [2023-08-30 15:13:08,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:08,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:08,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:13:08,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 15:13:08,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:08,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1719925883, now seen corresponding path program 1 times [2023-08-30 15:13:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:08,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869190727] [2023-08-30 15:13:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:08,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:09,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:09,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869190727] [2023-08-30 15:13:09,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869190727] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:09,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:09,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:13:09,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938231805] [2023-08-30 15:13:09,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:09,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 15:13:09,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:09,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 15:13:09,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 15:13:09,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-30 15:13:09,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:09,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:09,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-30 15:13:09,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:10,324 INFO L130 PetriNetUnfolder]: 16537/23460 cut-off events. [2023-08-30 15:13:10,325 INFO L131 PetriNetUnfolder]: For 2419/2419 co-relation queries the response was YES. [2023-08-30 15:13:10,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52097 conditions, 23460 events. 16537/23460 cut-off events. For 2419/2419 co-relation queries the response was YES. Maximal size of possible extension queue 1665. Compared 161785 event pairs, 7312 based on Foata normal form. 0/14134 useless extension candidates. Maximal degree in co-relation 52089. Up to 22290 conditions per place. [2023-08-30 15:13:10,469 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 68 selfloop transitions, 9 changer transitions 0/82 dead transitions. [2023-08-30 15:13:10,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 370 flow [2023-08-30 15:13:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 15:13:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 15:13:10,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 545 transitions. [2023-08-30 15:13:10,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5561224489795918 [2023-08-30 15:13:10,472 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 545 transitions. [2023-08-30 15:13:10,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 545 transitions. [2023-08-30 15:13:10,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:10,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 545 transitions. [2023-08-30 15:13:10,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:10,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:10,476 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:10,476 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 132 flow. Second operand 4 states and 545 transitions. [2023-08-30 15:13:10,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 370 flow [2023-08-30 15:13:10,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:13:10,480 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 189 flow [2023-08-30 15:13:10,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2023-08-30 15:13:10,481 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2023-08-30 15:13:10,481 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 189 flow [2023-08-30 15:13:10,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:10,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:10,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:10,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 15:13:10,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:10,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:10,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1774328923, now seen corresponding path program 1 times [2023-08-30 15:13:10,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:10,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111252161] [2023-08-30 15:13:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:10,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:10,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:10,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111252161] [2023-08-30 15:13:10,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111252161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:10,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:10,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:13:10,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052687436] [2023-08-30 15:13:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:10,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:13:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:13:10,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:13:10,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2023-08-30 15:13:10,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:10,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:10,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2023-08-30 15:13:10,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:11,625 INFO L130 PetriNetUnfolder]: 11479/16526 cut-off events. [2023-08-30 15:13:11,626 INFO L131 PetriNetUnfolder]: For 5127/5127 co-relation queries the response was YES. [2023-08-30 15:13:11,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41188 conditions, 16526 events. 11479/16526 cut-off events. For 5127/5127 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 107549 event pairs, 5180 based on Foata normal form. 0/11474 useless extension candidates. Maximal degree in co-relation 41178. Up to 12563 conditions per place. [2023-08-30 15:13:11,727 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 69 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2023-08-30 15:13:11,728 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 83 transitions, 454 flow [2023-08-30 15:13:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:13:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:13:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2023-08-30 15:13:11,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5216326530612245 [2023-08-30 15:13:11,730 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 639 transitions. [2023-08-30 15:13:11,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 639 transitions. [2023-08-30 15:13:11,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:11,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 639 transitions. [2023-08-30 15:13:11,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:11,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:11,735 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:11,735 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 189 flow. Second operand 5 states and 639 transitions. [2023-08-30 15:13:11,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 83 transitions, 454 flow [2023-08-30 15:13:11,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 83 transitions, 427 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-08-30 15:13:11,743 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 202 flow [2023-08-30 15:13:11,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=202, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2023-08-30 15:13:11,745 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -5 predicate places. [2023-08-30 15:13:11,745 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 202 flow [2023-08-30 15:13:11,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:11,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:11,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:11,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 15:13:11,746 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:11,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:11,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1774328924, now seen corresponding path program 1 times [2023-08-30 15:13:11,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:11,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679454250] [2023-08-30 15:13:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:11,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:11,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679454250] [2023-08-30 15:13:11,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679454250] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:11,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:11,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:13:11,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806913308] [2023-08-30 15:13:11,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:11,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:13:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:11,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:13:11,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:13:11,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2023-08-30 15:13:11,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:11,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:11,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2023-08-30 15:13:11,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:12,492 INFO L130 PetriNetUnfolder]: 6823/9862 cut-off events. [2023-08-30 15:13:12,492 INFO L131 PetriNetUnfolder]: For 5099/5099 co-relation queries the response was YES. [2023-08-30 15:13:12,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27582 conditions, 9862 events. 6823/9862 cut-off events. For 5099/5099 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 55419 event pairs, 1670 based on Foata normal form. 832/9278 useless extension candidates. Maximal degree in co-relation 27571. Up to 7196 conditions per place. [2023-08-30 15:13:12,539 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 86 selfloop transitions, 13 changer transitions 0/104 dead transitions. [2023-08-30 15:13:12,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 104 transitions, 593 flow [2023-08-30 15:13:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:13:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:13:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 656 transitions. [2023-08-30 15:13:12,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5355102040816326 [2023-08-30 15:13:12,541 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 656 transitions. [2023-08-30 15:13:12,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 656 transitions. [2023-08-30 15:13:12,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:12,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 656 transitions. [2023-08-30 15:13:12,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:12,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:12,546 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:12,546 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 202 flow. Second operand 5 states and 656 transitions. [2023-08-30 15:13:12,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 104 transitions, 593 flow [2023-08-30 15:13:12,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 104 transitions, 587 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 15:13:12,552 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 274 flow [2023-08-30 15:13:12,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2023-08-30 15:13:12,553 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-08-30 15:13:12,553 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 274 flow [2023-08-30 15:13:12,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:12,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:12,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:12,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 15:13:12,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:12,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:12,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1580946784, now seen corresponding path program 1 times [2023-08-30 15:13:12,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:12,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429915388] [2023-08-30 15:13:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:12,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:12,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:12,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429915388] [2023-08-30 15:13:12,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429915388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:12,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:12,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:13:12,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633499059] [2023-08-30 15:13:12,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:12,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:13:12,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:13:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:13:12,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-30 15:13:12,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:12,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:12,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-30 15:13:12,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:13,201 INFO L130 PetriNetUnfolder]: 5065/7650 cut-off events. [2023-08-30 15:13:13,201 INFO L131 PetriNetUnfolder]: For 8618/8618 co-relation queries the response was YES. [2023-08-30 15:13:13,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24264 conditions, 7650 events. 5065/7650 cut-off events. For 8618/8618 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 46726 event pairs, 826 based on Foata normal form. 0/7118 useless extension candidates. Maximal degree in co-relation 24251. Up to 6308 conditions per place. [2023-08-30 15:13:13,266 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 91 selfloop transitions, 13 changer transitions 0/109 dead transitions. [2023-08-30 15:13:13,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 109 transitions, 713 flow [2023-08-30 15:13:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:13:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:13:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2023-08-30 15:13:13,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2023-08-30 15:13:13,269 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2023-08-30 15:13:13,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2023-08-30 15:13:13,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:13,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2023-08-30 15:13:13,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,274 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,274 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 274 flow. Second operand 5 states and 672 transitions. [2023-08-30 15:13:13,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 109 transitions, 713 flow [2023-08-30 15:13:13,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 109 transitions, 655 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-30 15:13:13,283 INFO L231 Difference]: Finished difference. Result has 62 places, 60 transitions, 321 flow [2023-08-30 15:13:13,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=62, PETRI_TRANSITIONS=60} [2023-08-30 15:13:13,284 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2023-08-30 15:13:13,284 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 60 transitions, 321 flow [2023-08-30 15:13:13,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:13,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:13,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 15:13:13,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:13,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1340316057, now seen corresponding path program 1 times [2023-08-30 15:13:13,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:13,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408092295] [2023-08-30 15:13:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:13,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:13,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408092295] [2023-08-30 15:13:13,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408092295] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:13,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:13,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 15:13:13,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215472244] [2023-08-30 15:13:13,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:13,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 15:13:13,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:13,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 15:13:13,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 15:13:13,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-30 15:13:13,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 321 flow. Second operand has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:13,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-30 15:13:13,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:13,861 INFO L130 PetriNetUnfolder]: 3751/5786 cut-off events. [2023-08-30 15:13:13,861 INFO L131 PetriNetUnfolder]: For 8583/8583 co-relation queries the response was YES. [2023-08-30 15:13:13,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18849 conditions, 5786 events. 3751/5786 cut-off events. For 8583/8583 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 34531 event pairs, 26 based on Foata normal form. 0/5776 useless extension candidates. Maximal degree in co-relation 18835. Up to 2384 conditions per place. [2023-08-30 15:13:13,900 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 110 selfloop transitions, 17 changer transitions 0/132 dead transitions. [2023-08-30 15:13:13,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 132 transitions, 832 flow [2023-08-30 15:13:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 15:13:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 15:13:13,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 803 transitions. [2023-08-30 15:13:13,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5462585034013605 [2023-08-30 15:13:13,903 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 803 transitions. [2023-08-30 15:13:13,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 803 transitions. [2023-08-30 15:13:13,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:13,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 803 transitions. [2023-08-30 15:13:13,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,908 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,908 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 321 flow. Second operand 6 states and 803 transitions. [2023-08-30 15:13:13,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 132 transitions, 832 flow [2023-08-30 15:13:13,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 132 transitions, 798 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-30 15:13:13,917 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 289 flow [2023-08-30 15:13:13,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=289, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2023-08-30 15:13:13,918 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-08-30 15:13:13,918 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 289 flow [2023-08-30 15:13:13,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:13,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:13,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:13,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 15:13:13,919 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:13,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:13,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1289701989, now seen corresponding path program 1 times [2023-08-30 15:13:13,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:13,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847742955] [2023-08-30 15:13:13,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:13,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:14,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:14,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847742955] [2023-08-30 15:13:14,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847742955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:14,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:14,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 15:13:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824615613] [2023-08-30 15:13:14,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:14,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 15:13:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:14,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 15:13:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 15:13:14,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2023-08-30 15:13:14,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 289 flow. Second operand has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:14,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:14,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2023-08-30 15:13:14,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:14,799 INFO L130 PetriNetUnfolder]: 5978/9725 cut-off events. [2023-08-30 15:13:14,799 INFO L131 PetriNetUnfolder]: For 17696/17696 co-relation queries the response was YES. [2023-08-30 15:13:14,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30654 conditions, 9725 events. 5978/9725 cut-off events. For 17696/17696 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66194 event pairs, 824 based on Foata normal form. 718/10405 useless extension candidates. Maximal degree in co-relation 30640. Up to 3467 conditions per place. [2023-08-30 15:13:14,855 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 105 selfloop transitions, 33 changer transitions 2/145 dead transitions. [2023-08-30 15:13:14,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 145 transitions, 989 flow [2023-08-30 15:13:14,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 15:13:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 15:13:14,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 786 transitions. [2023-08-30 15:13:14,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5346938775510204 [2023-08-30 15:13:14,858 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 786 transitions. [2023-08-30 15:13:14,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 786 transitions. [2023-08-30 15:13:14,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:14,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 786 transitions. [2023-08-30 15:13:14,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:14,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:14,863 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:14,863 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 289 flow. Second operand 6 states and 786 transitions. [2023-08-30 15:13:14,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 145 transitions, 989 flow [2023-08-30 15:13:14,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 145 transitions, 791 flow, removed 45 selfloop flow, removed 7 redundant places. [2023-08-30 15:13:14,894 INFO L231 Difference]: Finished difference. Result has 60 places, 76 transitions, 467 flow [2023-08-30 15:13:14,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=60, PETRI_TRANSITIONS=76} [2023-08-30 15:13:14,895 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2023-08-30 15:13:14,895 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 76 transitions, 467 flow [2023-08-30 15:13:14,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:14,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:14,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:14,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 15:13:14,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:14,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1383774279, now seen corresponding path program 2 times [2023-08-30 15:13:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723766519] [2023-08-30 15:13:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:15,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:15,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723766519] [2023-08-30 15:13:15,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723766519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:15,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:15,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 15:13:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028990355] [2023-08-30 15:13:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:15,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 15:13:15,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 15:13:15,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 15:13:15,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2023-08-30 15:13:15,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 76 transitions, 467 flow. Second operand has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:15,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:15,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2023-08-30 15:13:15,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:15,663 INFO L130 PetriNetUnfolder]: 4484/7205 cut-off events. [2023-08-30 15:13:15,663 INFO L131 PetriNetUnfolder]: For 13078/13156 co-relation queries the response was YES. [2023-08-30 15:13:15,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24179 conditions, 7205 events. 4484/7205 cut-off events. For 13078/13156 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 44093 event pairs, 548 based on Foata normal form. 310/7477 useless extension candidates. Maximal degree in co-relation 24166. Up to 3419 conditions per place. [2023-08-30 15:13:15,695 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 129 selfloop transitions, 21 changer transitions 0/155 dead transitions. [2023-08-30 15:13:15,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 155 transitions, 1133 flow [2023-08-30 15:13:15,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 15:13:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 15:13:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2023-08-30 15:13:15,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5251700680272109 [2023-08-30 15:13:15,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2023-08-30 15:13:15,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2023-08-30 15:13:15,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:15,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2023-08-30 15:13:15,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:15,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:15,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:15,703 INFO L175 Difference]: Start difference. First operand has 60 places, 76 transitions, 467 flow. Second operand 6 states and 772 transitions. [2023-08-30 15:13:15,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 155 transitions, 1133 flow [2023-08-30 15:13:15,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 155 transitions, 1078 flow, removed 20 selfloop flow, removed 3 redundant places. [2023-08-30 15:13:15,720 INFO L231 Difference]: Finished difference. Result has 63 places, 84 transitions, 570 flow [2023-08-30 15:13:15,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=63, PETRI_TRANSITIONS=84} [2023-08-30 15:13:15,720 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2023-08-30 15:13:15,721 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 84 transitions, 570 flow [2023-08-30 15:13:15,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:15,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:15,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:15,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 15:13:15,722 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:15,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:15,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1068896903, now seen corresponding path program 1 times [2023-08-30 15:13:15,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:15,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030943790] [2023-08-30 15:13:15,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:15,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:15,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:15,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030943790] [2023-08-30 15:13:15,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030943790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:15,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:15,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 15:13:15,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104003101] [2023-08-30 15:13:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:15,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 15:13:15,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:15,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 15:13:15,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-30 15:13:15,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 245 [2023-08-30 15:13:15,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 84 transitions, 570 flow. Second operand has 9 states, 9 states have (on average 110.77777777777777) internal successors, (997), 9 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) [2023-08-30 15:13:15,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:15,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 245 [2023-08-30 15:13:15,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:16,969 INFO L130 PetriNetUnfolder]: 6506/10313 cut-off events. [2023-08-30 15:13:16,969 INFO L131 PetriNetUnfolder]: For 22891/22927 co-relation queries the response was YES. [2023-08-30 15:13:16,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34760 conditions, 10313 events. 6506/10313 cut-off events. For 22891/22927 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 65647 event pairs, 594 based on Foata normal form. 522/10835 useless extension candidates. Maximal degree in co-relation 34746. Up to 2515 conditions per place. [2023-08-30 15:13:17,020 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 171 selfloop transitions, 60 changer transitions 46/281 dead transitions. [2023-08-30 15:13:17,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 281 transitions, 2027 flow [2023-08-30 15:13:17,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 15:13:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 15:13:17,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1534 transitions. [2023-08-30 15:13:17,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5217687074829932 [2023-08-30 15:13:17,025 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1534 transitions. [2023-08-30 15:13:17,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1534 transitions. [2023-08-30 15:13:17,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:17,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1534 transitions. [2023-08-30 15:13:17,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 127.83333333333333) internal successors, (1534), 12 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 245.0) internal successors, (3185), 13 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,034 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 245.0) internal successors, (3185), 13 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,034 INFO L175 Difference]: Start difference. First operand has 63 places, 84 transitions, 570 flow. Second operand 12 states and 1534 transitions. [2023-08-30 15:13:17,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 281 transitions, 2027 flow [2023-08-30 15:13:17,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 281 transitions, 1957 flow, removed 16 selfloop flow, removed 4 redundant places. [2023-08-30 15:13:17,098 INFO L231 Difference]: Finished difference. Result has 74 places, 107 transitions, 949 flow [2023-08-30 15:13:17,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=949, PETRI_PLACES=74, PETRI_TRANSITIONS=107} [2023-08-30 15:13:17,099 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2023-08-30 15:13:17,099 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 107 transitions, 949 flow [2023-08-30 15:13:17,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.77777777777777) internal successors, (997), 9 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) [2023-08-30 15:13:17,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:13:17,100 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, 1] [2023-08-30 15:13:17,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 15:13:17,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-08-30 15:13:17,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:13:17,101 INFO L85 PathProgramCache]: Analyzing trace with hash 924414819, now seen corresponding path program 1 times [2023-08-30 15:13:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:13:17,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324218743] [2023-08-30 15:13:17,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:13:17,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:13:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:13:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 15:13:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:13:17,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324218743] [2023-08-30 15:13:17,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324218743] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:13:17,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:13:17,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 15:13:17,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540103160] [2023-08-30 15:13:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:13:17,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 15:13:17,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:13:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 15:13:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 15:13:17,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-30 15:13:17,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 107 transitions, 949 flow. Second operand has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:13:17,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-30 15:13:17,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:13:17,870 INFO L130 PetriNetUnfolder]: 4502/7184 cut-off events. [2023-08-30 15:13:17,871 INFO L131 PetriNetUnfolder]: For 25194/25247 co-relation queries the response was YES. [2023-08-30 15:13:17,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27339 conditions, 7184 events. 4502/7184 cut-off events. For 25194/25247 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 44042 event pairs, 812 based on Foata normal form. 40/7178 useless extension candidates. Maximal degree in co-relation 27321. Up to 2536 conditions per place. [2023-08-30 15:13:17,906 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 0 selfloop transitions, 0 changer transitions 160/160 dead transitions. [2023-08-30 15:13:17,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 160 transitions, 1449 flow [2023-08-30 15:13:17,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 15:13:17,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 15:13:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 780 transitions. [2023-08-30 15:13:17,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5306122448979592 [2023-08-30 15:13:17,909 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 780 transitions. [2023-08-30 15:13:17,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 780 transitions. [2023-08-30 15:13:17,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:13:17,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 780 transitions. [2023-08-30 15:13:17,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,915 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:17,915 INFO L175 Difference]: Start difference. First operand has 74 places, 107 transitions, 949 flow. Second operand 6 states and 780 transitions. [2023-08-30 15:13:17,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 160 transitions, 1449 flow [2023-08-30 15:13:18,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 160 transitions, 1211 flow, removed 35 selfloop flow, removed 10 redundant places. [2023-08-30 15:13:18,213 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2023-08-30 15:13:18,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2023-08-30 15:13:18,213 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2023-08-30 15:13:18,214 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2023-08-30 15:13:18,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 15:13:18,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2023-08-30 15:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2023-08-30 15:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2023-08-30 15:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2023-08-30 15:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2023-08-30 15:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2023-08-30 15:13:18,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2023-08-30 15:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2023-08-30 15:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2023-08-30 15:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2023-08-30 15:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2023-08-30 15:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2023-08-30 15:13:18,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 36 remaining) [2023-08-30 15:13:18,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 36 remaining) [2023-08-30 15:13:18,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2023-08-30 15:13:18,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2023-08-30 15:13:18,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2023-08-30 15:13:18,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2023-08-30 15:13:18,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2023-08-30 15:13:18,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2023-08-30 15:13:18,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2023-08-30 15:13:18,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2023-08-30 15:13:18,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2023-08-30 15:13:18,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2023-08-30 15:13:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 15:13:18,222 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:13:18,226 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 15:13:18,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 15:13:18,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:13:18 BasicIcfg [2023-08-30 15:13:18,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 15:13:18,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 15:13:18,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 15:13:18,231 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 15:13:18,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:58" (3/4) ... [2023-08-30 15:13:18,234 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 15:13:18,239 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 15:13:18,239 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 15:13:18,240 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 15:13:18,240 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-08-30 15:13:18,244 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-08-30 15:13:18,244 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 15:13:18,245 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 15:13:18,245 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 15:13:18,277 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 15:13:18,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 15:13:18,278 INFO L158 Benchmark]: Toolchain (without parser) took 21398.16ms. Allocated memory was 71.3MB in the beginning and 3.9GB in the end (delta: 3.9GB). Free memory was 48.7MB in the beginning and 2.2GB in the end (delta: -2.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-30 15:13:18,278 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 15:13:18,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.45ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 37.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 15:13:18,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.36ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 34.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:13:18,279 INFO L158 Benchmark]: Boogie Preprocessor took 51.21ms. Allocated memory is still 71.3MB. Free memory was 34.7MB in the beginning and 33.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:13:18,279 INFO L158 Benchmark]: RCFGBuilder took 755.04ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 33.1MB in the beginning and 62.5MB in the end (delta: -29.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-08-30 15:13:18,280 INFO L158 Benchmark]: TraceAbstraction took 20170.59ms. Allocated memory was 86.0MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 62.1MB in the beginning and 2.2GB in the end (delta: -2.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-30 15:13:18,280 INFO L158 Benchmark]: Witness Printer took 46.53ms. Allocated memory is still 3.9GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:13:18,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.45ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 37.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.36ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 34.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.21ms. Allocated memory is still 71.3MB. Free memory was 34.7MB in the beginning and 33.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.04ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 33.1MB in the beginning and 62.5MB in the end (delta: -29.4MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 20170.59ms. Allocated memory was 86.0MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 62.1MB in the beginning and 2.2GB in the end (delta: -2.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 46.53ms. Allocated memory is still 3.9GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 145 PlacesBefore, 61 PlacesAfterwards, 133 TransitionsBefore, 48 TransitionsAfterwards, 2622 CoEnabledTransitionPairs, 8 FixpointIterations, 59 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 16009 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6643, independent: 6240, independent conditional: 0, independent unconditional: 6240, dependent: 403, dependent conditional: 0, dependent unconditional: 403, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1163, independent: 1111, independent conditional: 0, independent unconditional: 1111, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6643, independent: 5129, independent conditional: 0, independent unconditional: 5129, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 1163, unknown conditional: 0, unknown unconditional: 1163] , Statistics on independence cache: Total cache size (in pairs): 366, Positive cache size: 343, Positive conditional cache size: 0, Positive unconditional cache size: 343, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: 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: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 205 locations, 36 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: 20.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 919 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 838 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 186 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1943 IncrementalHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 186 mSolverCounterUnsat, 33 mSDtfsCounter, 1943 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=949occurred in iteration=10, InterpolantAutomatonStates: 61, 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, 1.4s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2023-08-30 15:13:18,296 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