./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-collitem-trans.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 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 07:24:29,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:24:29,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:24:29,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:24:29,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:24:29,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:24:29,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:24:29,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:24:29,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:24:29,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:24:29,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:24:29,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:24:29,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:24:29,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:24:29,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:24:29,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:24:29,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:24:29,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:24:29,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:24:29,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:24:29,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:24:29,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:24:29,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:24:29,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:24:29,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:24:29,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:24:29,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:24:29,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:24:29,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:24:29,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:24:29,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:24:29,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:24:29,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:24:29,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:24:29,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:24:29,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:24:29,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:24:29,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:24:29,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:24:29,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:24:29,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:24:29,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:24:29,914 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:24:29,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:24:29,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:24:29,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:24:29,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:24:29,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:24:29,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:24:29,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:24:29,918 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:24:29,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:24:29,919 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:24:29,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:24:29,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:24:29,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:24:29,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:24:29,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:24:29,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:24:29,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:24:29,920 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:24:29,920 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:24:29,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:24:29,921 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:24:29,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:24:29,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:24:29,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:24:29,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:24:29,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:24:29,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:24:29,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:24:29,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:24:29,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:24:29,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:24:29,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:24:29,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:24:29,923 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:24:29,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:24:29,923 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:24:29,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:24:30,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:24:30,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:24:30,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:24:30,248 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:24:30,248 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:24:30,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-09-01 07:24:31,454 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:24:31,656 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:24:31,657 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-trans.wvr.c [2023-09-01 07:24:31,663 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5fa3059/93c41a199563426f9622e10babd99ba5/FLAGaf477836b [2023-09-01 07:24:31,674 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca5fa3059/93c41a199563426f9622e10babd99ba5 [2023-09-01 07:24:31,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:24:31,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:24:31,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:24:31,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:24:31,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:24:31,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:31,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425f1cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31, skipping insertion in model container [2023-09-01 07:24:31,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:31,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:24:31,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:24:31,897 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/chl-collitem-trans.wvr.c[3481,3494] [2023-09-01 07:24:31,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:24:31,920 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:24:31,956 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/chl-collitem-trans.wvr.c[3481,3494] [2023-09-01 07:24:31,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:24:31,974 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:24:31,974 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:24:31,980 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:24:31,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31 WrapperNode [2023-09-01 07:24:31,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:24:31,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:24:31,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:24:31,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:24:31,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,087 INFO L138 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 529 [2023-09-01 07:24:32,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:24:32,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:24:32,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:24:32,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:24:32,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,153 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:24:32,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:24:32,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:24:32,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:24:32,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (1/1) ... [2023-09-01 07:24:32,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:24:32,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:24:32,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 07:24:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:24:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:24:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:24:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:24:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:24:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-01 07:24:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-01 07:24:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:24:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:24:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:24:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 07:24:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 07:24:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:24:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:24:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:24:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:24:32,248 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 07:24:32,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 07:24:32,411 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:24:32,413 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:24:33,116 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:24:37,781 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:24:37,781 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 07:24:37,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:24:37 BoogieIcfgContainer [2023-09-01 07:24:37,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:24:37,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:24:37,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:24:37,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:24:37,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:24:31" (1/3) ... [2023-09-01 07:24:37,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc16870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:24:37, skipping insertion in model container [2023-09-01 07:24:37,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:24:31" (2/3) ... [2023-09-01 07:24:37,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc16870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:24:37, skipping insertion in model container [2023-09-01 07:24:37,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:24:37" (3/3) ... [2023-09-01 07:24:37,792 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2023-09-01 07:24:37,800 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:24:37,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:24:37,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2023-09-01 07:24:37,810 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:24:39,340 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-01 07:24:39,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 202 transitions, 428 flow [2023-09-01 07:24:39,881 INFO L130 PetriNetUnfolder]: 1/199 cut-off events. [2023-09-01 07:24:39,881 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 07:24:39,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 199 events. 1/199 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 506 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-09-01 07:24:39,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 202 transitions, 428 flow [2023-09-01 07:24:39,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 181 transitions, 377 flow [2023-09-01 07:24:39,894 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:24:39,902 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 181 transitions, 377 flow [2023-09-01 07:24:39,904 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 181 transitions, 377 flow [2023-09-01 07:24:39,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 181 transitions, 377 flow [2023-09-01 07:24:40,148 INFO L130 PetriNetUnfolder]: 0/181 cut-off events. [2023-09-01 07:24:40,148 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:24:40,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 181 events. 0/181 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 498 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-09-01 07:24:40,152 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2023-09-01 07:24:46,409 WARN L222 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 1436 DAG size of output: 441 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 07:24:55,461 WARN L222 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 1646 DAG size of output: 575 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 07:25:18,674 WARN L222 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 1235 DAG size of output: 522 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 07:25:33,289 INFO L134 LiptonReduction]: Checked pairs total: 3619 [2023-09-01 07:25:33,290 INFO L136 LiptonReduction]: Total number of compositions: 95 [2023-09-01 07:25:33,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:25:33,306 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;@70f6767d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:25:33,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2023-09-01 07:25:33,309 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-09-01 07:25:33,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:25:33,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:25:33,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:25:33,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:25:33,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:25:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2342121, now seen corresponding path program 1 times [2023-09-01 07:25:33,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:25:33,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90614614] [2023-09-01 07:25:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:25:33,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:25:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:25:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:25:33,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:25:33,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90614614] [2023-09-01 07:25:33,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90614614] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:25:33,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:25:33,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:25:33,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763515512] [2023-09-01 07:25:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:25:33,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 07:25:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:25:33,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 07:25:33,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 07:25:33,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 297 [2023-09-01 07:25:33,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:25:33,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:25:33,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 297 [2023-09-01 07:25:33,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:45,574 INFO L130 PetriNetUnfolder]: 29733/42766 cut-off events. [2023-09-01 07:26:45,574 INFO L131 PetriNetUnfolder]: For 1277/1277 co-relation queries the response was YES. [2023-09-01 07:26:45,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86565 conditions, 42766 events. 29733/42766 cut-off events. For 1277/1277 co-relation queries the response was YES. Maximal size of possible extension queue 5832. Compared 314791 event pairs, 29733 based on Foata normal form. 0/9294 useless extension candidates. Maximal degree in co-relation 82328. Up to 42767 conditions per place. [2023-09-01 07:26:45,805 INFO L137 encePairwiseOnDemand]: 273/297 looper letters, 62 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2023-09-01 07:26:45,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 263 flow [2023-09-01 07:26:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 07:26:45,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 07:26:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 324 transitions. [2023-09-01 07:26:45,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2023-09-01 07:26:45,822 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 324 transitions. [2023-09-01 07:26:45,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 324 transitions. [2023-09-01 07:26:45,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:45,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 324 transitions. [2023-09-01 07:26:45,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:45,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:45,835 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:45,836 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 187 flow. Second operand 2 states and 324 transitions. [2023-09-01 07:26:45,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 263 flow [2023-09-01 07:26:45,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 254 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 07:26:45,884 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 130 flow [2023-09-01 07:26:45,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=130, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-09-01 07:26:45,891 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2023-09-01 07:26:45,891 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 130 flow [2023-09-01 07:26:45,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:45,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:45,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:45,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:26:45,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:26:45,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:45,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2342137, now seen corresponding path program 1 times [2023-09-01 07:26:45,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:45,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623954400] [2023-09-01 07:26:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:45,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:46,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:46,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623954400] [2023-09-01 07:26:46,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623954400] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:46,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:46,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:46,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507403695] [2023-09-01 07:26:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:46,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:46,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:46,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:26:46,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 130 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) [2023-09-01 07:26:46,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:46,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:26:46,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:27:49,225 INFO L130 PetriNetUnfolder]: 26581/38278 cut-off events. [2023-09-01 07:27:49,225 INFO L131 PetriNetUnfolder]: For 288/288 co-relation queries the response was YES. [2023-09-01 07:27:49,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77189 conditions, 38278 events. 26581/38278 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 5202. Compared 278034 event pairs, 26581 based on Foata normal form. 0/8442 useless extension candidates. Maximal degree in co-relation 77186. Up to 38278 conditions per place. [2023-09-01 07:27:49,370 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 59 selfloop transitions, 1 changer transitions 0/60 dead transitions. [2023-09-01 07:27:49,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 246 flow [2023-09-01 07:27:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:27:49,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:27:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-09-01 07:27:49,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46352413019079686 [2023-09-01 07:27:49,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-09-01 07:27:49,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-09-01 07:27:49,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:27:49,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-09-01 07:27:49,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:27:49,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:27:49,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:27:49,380 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 130 flow. Second operand 3 states and 413 transitions. [2023-09-01 07:27:49,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 246 flow [2023-09-01 07:27:49,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 07:27:49,382 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 128 flow [2023-09-01 07:27:49,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2023-09-01 07:27:49,383 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2023-09-01 07:27:49,383 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 128 flow [2023-09-01 07:27:49,384 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) [2023-09-01 07:27:49,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:27:49,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:27:49,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:27:49,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:27:49,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:27:49,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2342138, now seen corresponding path program 1 times [2023-09-01 07:27:49,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:27:49,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911807843] [2023-09-01 07:27:49,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:27:49,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:27:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:27:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:27:49,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:27:49,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911807843] [2023-09-01 07:27:49,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911807843] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:27:49,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:27:49,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:27:49,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747419900] [2023-09-01 07:27:49,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:27:49,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:27:49,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:27:49,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:27:49,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:27:49,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:27:49,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 128 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) [2023-09-01 07:27:49,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:27:49,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:27:49,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:28:39,461 INFO L130 PetriNetUnfolder]: 23605/34038 cut-off events. [2023-09-01 07:28:39,461 INFO L131 PetriNetUnfolder]: For 270/270 co-relation queries the response was YES. [2023-09-01 07:28:39,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68674 conditions, 34038 events. 23605/34038 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 4608. Compared 243395 event pairs, 23605 based on Foata normal form. 0/7630 useless extension candidates. Maximal degree in co-relation 68670. Up to 34038 conditions per place. [2023-09-01 07:28:39,587 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 57 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2023-09-01 07:28:39,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 240 flow [2023-09-01 07:28:39,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:28:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:28:39,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-09-01 07:28:39,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4612794612794613 [2023-09-01 07:28:39,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-09-01 07:28:39,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-09-01 07:28:39,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:28:39,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-09-01 07:28:39,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:28:39,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:28:39,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:28:39,596 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 128 flow. Second operand 3 states and 411 transitions. [2023-09-01 07:28:39,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 240 flow [2023-09-01 07:28:39,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 58 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:28:39,598 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 125 flow [2023-09-01 07:28:39,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2023-09-01 07:28:39,600 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2023-09-01 07:28:39,600 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 125 flow [2023-09-01 07:28:39,601 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) [2023-09-01 07:28:39,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:28:39,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:28:39,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:28:39,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:28:39,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:28:39,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2342140, now seen corresponding path program 1 times [2023-09-01 07:28:39,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:28:39,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479451776] [2023-09-01 07:28:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:28:39,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:28:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:28:39,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:28:39,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:28:39,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479451776] [2023-09-01 07:28:39,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479451776] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:28:39,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:28:39,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:28:39,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903003086] [2023-09-01 07:28:39,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:28:39,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:28:39,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:28:39,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:28:39,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:28:39,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:28:39,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 125 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) [2023-09-01 07:28:39,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:28:39,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:28:39,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:21,772 INFO L130 PetriNetUnfolder]: 20903/30180 cut-off events. [2023-09-01 07:29:21,772 INFO L131 PetriNetUnfolder]: For 255/255 co-relation queries the response was YES. [2023-09-01 07:29:21,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60892 conditions, 30180 events. 20903/30180 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 4081. Compared 213348 event pairs, 20903 based on Foata normal form. 0/6866 useless extension candidates. Maximal degree in co-relation 60888. Up to 30180 conditions per place. [2023-09-01 07:29:21,887 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 55 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2023-09-01 07:29:21,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 233 flow [2023-09-01 07:29:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-09-01 07:29:21,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4590347923681257 [2023-09-01 07:29:21,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-09-01 07:29:21,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-09-01 07:29:21,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:21,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-09-01 07:29:21,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,894 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:21,894 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 125 flow. Second operand 3 states and 409 transitions. [2023-09-01 07:29:21,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 233 flow [2023-09-01 07:29:21,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 56 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:21,896 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 122 flow [2023-09-01 07:29:21,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2023-09-01 07:29:21,897 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -30 predicate places. [2023-09-01 07:29:21,897 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 122 flow [2023-09-01 07:29:21,897 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) [2023-09-01 07:29:21,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:21,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:29:21,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:29:21,898 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:29:21,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2342141, now seen corresponding path program 1 times [2023-09-01 07:29:21,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:21,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797304516] [2023-09-01 07:29:21,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:21,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:22,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:22,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797304516] [2023-09-01 07:29:22,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797304516] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:22,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:22,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:29:22,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325945567] [2023-09-01 07:29:22,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:22,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:22,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:22,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:22,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:22,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:29:22,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 122 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) [2023-09-01 07:29:22,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:22,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:29:22,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:29:55,762 INFO L130 PetriNetUnfolder]: 18365/26554 cut-off events. [2023-09-01 07:29:55,762 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2023-09-01 07:29:55,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53578 conditions, 26554 events. 18365/26554 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 185394 event pairs, 18365 based on Foata normal form. 0/6142 useless extension candidates. Maximal degree in co-relation 53574. Up to 26554 conditions per place. [2023-09-01 07:29:55,856 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2023-09-01 07:29:55,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 226 flow [2023-09-01 07:29:55,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:29:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:29:55,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2023-09-01 07:29:55,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2023-09-01 07:29:55,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 407 transitions. [2023-09-01 07:29:55,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 407 transitions. [2023-09-01 07:29:55,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:29:55,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 407 transitions. [2023-09-01 07:29:55,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:55,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:55,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:29:55,863 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 122 flow. Second operand 3 states and 407 transitions. [2023-09-01 07:29:55,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 226 flow [2023-09-01 07:29:55,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:29:55,865 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 119 flow [2023-09-01 07:29:55,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2023-09-01 07:29:55,866 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -31 predicate places. [2023-09-01 07:29:55,866 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 119 flow [2023-09-01 07:29:55,866 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) [2023-09-01 07:29:55,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:29:55,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:29:55,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:29:55,867 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:29:55,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:29:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash 2342143, now seen corresponding path program 1 times [2023-09-01 07:29:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:29:55,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482413493] [2023-09-01 07:29:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:29:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:29:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:29:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:29:56,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:29:56,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482413493] [2023-09-01 07:29:56,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482413493] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:29:56,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:29:56,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:29:56,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354075543] [2023-09-01 07:29:56,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:29:56,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:29:56,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:29:56,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:29:56,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:29:56,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:29:56,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 119 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) [2023-09-01 07:29:56,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:29:56,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:29:56,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:20,782 INFO L130 PetriNetUnfolder]: 16039/23232 cut-off events. [2023-09-01 07:30:20,782 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2023-09-01 07:30:20,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46902 conditions, 23232 events. 16039/23232 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 3122. Compared 159857 event pairs, 16039 based on Foata normal form. 0/5484 useless extension candidates. Maximal degree in co-relation 46898. Up to 23232 conditions per place. [2023-09-01 07:30:20,861 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 51 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2023-09-01 07:30:20,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 219 flow [2023-09-01 07:30:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2023-09-01 07:30:20,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2023-09-01 07:30:20,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2023-09-01 07:30:20,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2023-09-01 07:30:20,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:20,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2023-09-01 07:30:20,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:20,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:20,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:20,868 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 119 flow. Second operand 3 states and 405 transitions. [2023-09-01 07:30:20,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 219 flow [2023-09-01 07:30:20,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:30:20,870 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 116 flow [2023-09-01 07:30:20,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2023-09-01 07:30:20,871 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2023-09-01 07:30:20,871 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 116 flow [2023-09-01 07:30:20,871 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) [2023-09-01 07:30:20,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:20,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:30:20,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:30:20,872 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:30:20,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2342144, now seen corresponding path program 1 times [2023-09-01 07:30:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:20,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722313430] [2023-09-01 07:30:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:30:21,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:21,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722313430] [2023-09-01 07:30:21,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722313430] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:21,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:21,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:30:21,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867838825] [2023-09-01 07:30:21,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:21,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:21,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:21,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:21,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:30:21,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 116 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) [2023-09-01 07:30:21,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:21,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:30:21,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:37,410 INFO L130 PetriNetUnfolder]: 13869/20130 cut-off events. [2023-09-01 07:30:37,411 INFO L131 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2023-09-01 07:30:37,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40666 conditions, 20130 events. 13869/20130 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 2690. Compared 136029 event pairs, 13869 based on Foata normal form. 0/4862 useless extension candidates. Maximal degree in co-relation 40662. Up to 20130 conditions per place. [2023-09-01 07:30:37,463 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 49 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2023-09-01 07:30:37,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 50 transitions, 212 flow [2023-09-01 07:30:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-09-01 07:30:37,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45230078563411896 [2023-09-01 07:30:37,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-09-01 07:30:37,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-09-01 07:30:37,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:37,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-09-01 07:30:37,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:37,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:37,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:37,469 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 116 flow. Second operand 3 states and 403 transitions. [2023-09-01 07:30:37,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 50 transitions, 212 flow [2023-09-01 07:30:37,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:30:37,470 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 113 flow [2023-09-01 07:30:37,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2023-09-01 07:30:37,471 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -33 predicate places. [2023-09-01 07:30:37,471 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 113 flow [2023-09-01 07:30:37,472 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) [2023-09-01 07:30:37,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:37,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:30:37,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:30:37,472 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:30:37,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:37,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2342122, now seen corresponding path program 1 times [2023-09-01 07:30:37,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:37,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550656042] [2023-09-01 07:30:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:30:37,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:37,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550656042] [2023-09-01 07:30:37,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550656042] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:37,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:37,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:30:37,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687425851] [2023-09-01 07:30:37,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:37,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:37,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:37,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:30:37,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 113 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) [2023-09-01 07:30:37,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:37,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:30:37,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:51,392 INFO L130 PetriNetUnfolder]: 11929/17350 cut-off events. [2023-09-01 07:30:51,392 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2023-09-01 07:30:51,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35052 conditions, 17350 events. 11929/17350 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 2313. Compared 115041 event pairs, 11929 based on Foata normal form. 0/4284 useless extension candidates. Maximal degree in co-relation 35048. Up to 17350 conditions per place. [2023-09-01 07:30:51,443 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 47 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2023-09-01 07:30:51,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 205 flow [2023-09-01 07:30:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-09-01 07:30:51,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4500561167227834 [2023-09-01 07:30:51,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-09-01 07:30:51,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-09-01 07:30:51,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:51,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-09-01 07:30:51,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:51,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:51,449 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:30:51,449 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 113 flow. Second operand 3 states and 401 transitions. [2023-09-01 07:30:51,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 205 flow [2023-09-01 07:30:51,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:30:51,451 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 110 flow [2023-09-01 07:30:51,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=60, 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=110, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2023-09-01 07:30:51,451 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2023-09-01 07:30:51,452 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 110 flow [2023-09-01 07:30:51,452 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) [2023-09-01 07:30:51,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:51,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:30:51,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 07:30:51,453 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:30:51,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:51,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2342123, now seen corresponding path program 1 times [2023-09-01 07:30:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:51,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951330222] [2023-09-01 07:30:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:51,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:30:51,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:51,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951330222] [2023-09-01 07:30:51,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951330222] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:51,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:51,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:30:51,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716144478] [2023-09-01 07:30:51,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:51,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:51,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:51,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:30:51,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 110 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) [2023-09-01 07:30:51,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:51,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:30:51,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:04,179 INFO L130 PetriNetUnfolder]: 10133/14774 cut-off events. [2023-09-01 07:31:04,179 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2023-09-01 07:31:04,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29850 conditions, 14774 events. 10133/14774 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 96370 event pairs, 10133 based on Foata normal form. 0/3742 useless extension candidates. Maximal degree in co-relation 29846. Up to 14774 conditions per place. [2023-09-01 07:31:04,217 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 45 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2023-09-01 07:31:04,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 46 transitions, 198 flow [2023-09-01 07:31:04,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2023-09-01 07:31:04,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4478114478114478 [2023-09-01 07:31:04,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2023-09-01 07:31:04,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2023-09-01 07:31:04,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:04,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2023-09-01 07:31:04,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:04,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:04,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:04,222 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 110 flow. Second operand 3 states and 399 transitions. [2023-09-01 07:31:04,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 46 transitions, 198 flow [2023-09-01 07:31:04,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 46 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:04,224 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 107 flow [2023-09-01 07:31:04,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2023-09-01 07:31:04,225 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -35 predicate places. [2023-09-01 07:31:04,225 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 107 flow [2023-09-01 07:31:04,225 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) [2023-09-01 07:31:04,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:04,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:04,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 07:31:04,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:04,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:04,226 INFO L85 PathProgramCache]: Analyzing trace with hash 2342125, now seen corresponding path program 1 times [2023-09-01 07:31:04,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:04,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959384102] [2023-09-01 07:31:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:04,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:04,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:04,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959384102] [2023-09-01 07:31:04,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959384102] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:04,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:04,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:04,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580278526] [2023-09-01 07:31:04,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:04,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:04,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:04,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:04,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 107 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) [2023-09-01 07:31:04,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:04,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:04,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:15,502 INFO L130 PetriNetUnfolder]: 8513/12450 cut-off events. [2023-09-01 07:31:15,502 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2023-09-01 07:31:15,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25174 conditions, 12450 events. 8513/12450 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 1642. Compared 79744 event pairs, 8513 based on Foata normal form. 0/3254 useless extension candidates. Maximal degree in co-relation 25170. Up to 12450 conditions per place. [2023-09-01 07:31:15,531 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 43 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2023-09-01 07:31:15,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 191 flow [2023-09-01 07:31:15,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:15,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:15,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-09-01 07:31:15,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44556677890011226 [2023-09-01 07:31:15,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-09-01 07:31:15,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-09-01 07:31:15,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:15,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-09-01 07:31:15,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:15,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:15,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:15,537 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 107 flow. Second operand 3 states and 397 transitions. [2023-09-01 07:31:15,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 191 flow [2023-09-01 07:31:15,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 44 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:15,538 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 104 flow [2023-09-01 07:31:15,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2023-09-01 07:31:15,539 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -36 predicate places. [2023-09-01 07:31:15,539 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 104 flow [2023-09-01 07:31:15,539 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) [2023-09-01 07:31:15,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:15,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:15,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 07:31:15,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:15,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:15,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2342126, now seen corresponding path program 1 times [2023-09-01 07:31:15,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:15,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619594906] [2023-09-01 07:31:15,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:15,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:15,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:15,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619594906] [2023-09-01 07:31:15,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619594906] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:15,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:15,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255810863] [2023-09-01 07:31:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:15,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:15,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:15,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:15,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 104 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) [2023-09-01 07:31:15,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:15,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:15,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:25,362 INFO L130 PetriNetUnfolder]: 7029/10318 cut-off events. [2023-09-01 07:31:25,362 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-09-01 07:31:25,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20882 conditions, 10318 events. 7029/10318 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 1348. Compared 64541 event pairs, 7029 based on Foata normal form. 0/2798 useless extension candidates. Maximal degree in co-relation 20878. Up to 10318 conditions per place. [2023-09-01 07:31:25,385 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 41 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-09-01 07:31:25,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 42 transitions, 184 flow [2023-09-01 07:31:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:25,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:25,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-09-01 07:31:25,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44332210998877664 [2023-09-01 07:31:25,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-09-01 07:31:25,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-09-01 07:31:25,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:25,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-09-01 07:31:25,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:25,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:25,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:25,390 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 104 flow. Second operand 3 states and 395 transitions. [2023-09-01 07:31:25,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 42 transitions, 184 flow [2023-09-01 07:31:25,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 42 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:25,391 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 101 flow [2023-09-01 07:31:25,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2023-09-01 07:31:25,392 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -37 predicate places. [2023-09-01 07:31:25,392 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 101 flow [2023-09-01 07:31:25,392 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) [2023-09-01 07:31:25,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:25,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:25,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 07:31:25,393 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:25,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2342128, now seen corresponding path program 1 times [2023-09-01 07:31:25,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:25,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295326910] [2023-09-01 07:31:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:25,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:25,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:25,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295326910] [2023-09-01 07:31:25,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295326910] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:25,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:25,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:25,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472349992] [2023-09-01 07:31:25,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:25,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:25,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:25,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:25,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:25,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:25,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 101 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) [2023-09-01 07:31:25,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:25,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:25,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:33,649 INFO L130 PetriNetUnfolder]: 5731/8448 cut-off events. [2023-09-01 07:31:33,650 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2023-09-01 07:31:33,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17100 conditions, 8448 events. 5731/8448 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 51538 event pairs, 5731 based on Foata normal form. 0/2382 useless extension candidates. Maximal degree in co-relation 17096. Up to 8448 conditions per place. [2023-09-01 07:31:33,671 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 39 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-09-01 07:31:33,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 40 transitions, 177 flow [2023-09-01 07:31:33,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-09-01 07:31:33,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44107744107744107 [2023-09-01 07:31:33,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-09-01 07:31:33,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-09-01 07:31:33,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:33,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-09-01 07:31:33,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:33,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:33,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:33,675 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 101 flow. Second operand 3 states and 393 transitions. [2023-09-01 07:31:33,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 40 transitions, 177 flow [2023-09-01 07:31:33,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 40 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:33,676 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 98 flow [2023-09-01 07:31:33,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2023-09-01 07:31:33,680 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -38 predicate places. [2023-09-01 07:31:33,681 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 98 flow [2023-09-01 07:31:33,681 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) [2023-09-01 07:31:33,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:33,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:33,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 07:31:33,682 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:33,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:33,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2342129, now seen corresponding path program 1 times [2023-09-01 07:31:33,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:33,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807711898] [2023-09-01 07:31:33,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:33,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:33,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:33,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807711898] [2023-09-01 07:31:33,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807711898] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:33,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:33,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:33,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660053775] [2023-09-01 07:31:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:33,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:33,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:33,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 98 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) [2023-09-01 07:31:33,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:33,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:33,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:40,433 INFO L130 PetriNetUnfolder]: 4557/6754 cut-off events. [2023-09-01 07:31:40,433 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2023-09-01 07:31:40,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13674 conditions, 6754 events. 4557/6754 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 40086 event pairs, 4557 based on Foata normal form. 0/1998 useless extension candidates. Maximal degree in co-relation 13670. Up to 6754 conditions per place. [2023-09-01 07:31:40,448 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 37 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-09-01 07:31:40,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 38 transitions, 170 flow [2023-09-01 07:31:40,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2023-09-01 07:31:40,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4388327721661055 [2023-09-01 07:31:40,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2023-09-01 07:31:40,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2023-09-01 07:31:40,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:40,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2023-09-01 07:31:40,451 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) [2023-09-01 07:31:40,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:40,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:40,453 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 98 flow. Second operand 3 states and 391 transitions. [2023-09-01 07:31:40,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 38 transitions, 170 flow [2023-09-01 07:31:40,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 38 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:40,455 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 95 flow [2023-09-01 07:31:40,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2023-09-01 07:31:40,455 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -39 predicate places. [2023-09-01 07:31:40,456 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 95 flow [2023-09-01 07:31:40,456 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) [2023-09-01 07:31:40,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:40,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:40,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 07:31:40,456 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:40,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2342131, now seen corresponding path program 1 times [2023-09-01 07:31:40,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:40,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982097165] [2023-09-01 07:31:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:40,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:40,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:40,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982097165] [2023-09-01 07:31:40,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982097165] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:40,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:40,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:40,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489546998] [2023-09-01 07:31:40,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:40,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:40,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:40,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:40,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:40,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:40,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 95 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) [2023-09-01 07:31:40,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:40,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:40,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:46,002 INFO L130 PetriNetUnfolder]: 3523/5260 cut-off events. [2023-09-01 07:31:46,002 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-09-01 07:31:46,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10662 conditions, 5260 events. 3523/5260 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 30294 event pairs, 3523 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 10658. Up to 5260 conditions per place. [2023-09-01 07:31:46,013 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-09-01 07:31:46,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 163 flow [2023-09-01 07:31:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-09-01 07:31:46,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43658810325476993 [2023-09-01 07:31:46,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-09-01 07:31:46,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-09-01 07:31:46,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:46,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-09-01 07:31:46,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:46,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:46,018 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:46,018 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 95 flow. Second operand 3 states and 389 transitions. [2023-09-01 07:31:46,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 163 flow [2023-09-01 07:31:46,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 36 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:46,019 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 92 flow [2023-09-01 07:31:46,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2023-09-01 07:31:46,020 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -40 predicate places. [2023-09-01 07:31:46,020 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 92 flow [2023-09-01 07:31:46,020 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) [2023-09-01 07:31:46,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:46,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:46,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 07:31:46,021 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:46,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:46,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2342132, now seen corresponding path program 1 times [2023-09-01 07:31:46,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:46,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120319952] [2023-09-01 07:31:46,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:46,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:46,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:46,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120319952] [2023-09-01 07:31:46,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120319952] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:46,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:46,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:46,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014759410] [2023-09-01 07:31:46,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:46,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:46,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:46,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:46,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 92 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) [2023-09-01 07:31:46,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:46,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:46,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:50,471 INFO L130 PetriNetUnfolder]: 2605/3930 cut-off events. [2023-09-01 07:31:50,471 INFO L131 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2023-09-01 07:31:50,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7978 conditions, 3930 events. 2605/3930 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 21853 event pairs, 2605 based on Foata normal form. 0/1342 useless extension candidates. Maximal degree in co-relation 7974. Up to 3930 conditions per place. [2023-09-01 07:31:50,479 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-09-01 07:31:50,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 34 transitions, 156 flow [2023-09-01 07:31:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2023-09-01 07:31:50,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43434343434343436 [2023-09-01 07:31:50,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2023-09-01 07:31:50,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2023-09-01 07:31:50,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:50,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2023-09-01 07:31:50,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:50,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:50,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:50,484 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 92 flow. Second operand 3 states and 387 transitions. [2023-09-01 07:31:50,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 34 transitions, 156 flow [2023-09-01 07:31:50,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 34 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:50,486 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 89 flow [2023-09-01 07:31:50,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2023-09-01 07:31:50,486 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -41 predicate places. [2023-09-01 07:31:50,486 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 89 flow [2023-09-01 07:31:50,486 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) [2023-09-01 07:31:50,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:50,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:50,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 07:31:50,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:50,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:50,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2342134, now seen corresponding path program 1 times [2023-09-01 07:31:50,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:50,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223574167] [2023-09-01 07:31:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:50,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:50,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:50,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223574167] [2023-09-01 07:31:50,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223574167] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:50,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:50,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:50,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950948171] [2023-09-01 07:31:50,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:50,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:50,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:50,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:50,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:50,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 89 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) [2023-09-01 07:31:50,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:50,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:50,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:53,746 INFO L130 PetriNetUnfolder]: 1829/2802 cut-off events. [2023-09-01 07:31:53,746 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2023-09-01 07:31:53,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5692 conditions, 2802 events. 1829/2802 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 14914 event pairs, 1829 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 5688. Up to 2802 conditions per place. [2023-09-01 07:31:53,753 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-09-01 07:31:53,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 32 transitions, 149 flow [2023-09-01 07:31:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2023-09-01 07:31:53,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43209876543209874 [2023-09-01 07:31:53,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2023-09-01 07:31:53,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2023-09-01 07:31:53,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:53,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2023-09-01 07:31:53,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:53,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:53,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:53,757 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 89 flow. Second operand 3 states and 385 transitions. [2023-09-01 07:31:53,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 32 transitions, 149 flow [2023-09-01 07:31:53,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 32 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:53,758 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 86 flow [2023-09-01 07:31:53,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2023-09-01 07:31:53,759 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -42 predicate places. [2023-09-01 07:31:53,759 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 86 flow [2023-09-01 07:31:53,759 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) [2023-09-01 07:31:53,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:53,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:53,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 07:31:53,760 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:53,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:53,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2342135, now seen corresponding path program 1 times [2023-09-01 07:31:53,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:53,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474667115] [2023-09-01 07:31:53,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:53,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:53,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474667115] [2023-09-01 07:31:53,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474667115] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:53,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:53,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064538019] [2023-09-01 07:31:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:53,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:53,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:53,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:53,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:53,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 86 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) [2023-09-01 07:31:53,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:53,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:53,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:55,936 INFO L130 PetriNetUnfolder]: 1157/1822 cut-off events. [2023-09-01 07:31:55,936 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-09-01 07:31:55,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3706 conditions, 1822 events. 1157/1822 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 9252 event pairs, 1157 based on Foata normal form. 0/814 useless extension candidates. Maximal degree in co-relation 3702. Up to 1822 conditions per place. [2023-09-01 07:31:55,942 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-09-01 07:31:55,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 142 flow [2023-09-01 07:31:55,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-09-01 07:31:55,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4298540965207632 [2023-09-01 07:31:55,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-09-01 07:31:55,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-09-01 07:31:55,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:55,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-09-01 07:31:55,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:55,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:55,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:55,945 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 86 flow. Second operand 3 states and 383 transitions. [2023-09-01 07:31:55,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 142 flow [2023-09-01 07:31:55,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 30 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:55,949 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 83 flow [2023-09-01 07:31:55,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2023-09-01 07:31:55,950 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -43 predicate places. [2023-09-01 07:31:55,950 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 83 flow [2023-09-01 07:31:55,950 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) [2023-09-01 07:31:55,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:55,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:31:55,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 07:31:55,951 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:55,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956199, now seen corresponding path program 1 times [2023-09-01 07:31:55,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579547516] [2023-09-01 07:31:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:56,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:56,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:56,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579547516] [2023-09-01 07:31:56,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579547516] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:56,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:56,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:56,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870034422] [2023-09-01 07:31:56,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:56,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:56,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:56,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:56,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:56,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:56,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:56,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:56,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:56,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:57,830 INFO L130 PetriNetUnfolder]: 933/1478 cut-off events. [2023-09-01 07:31:57,830 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-09-01 07:31:57,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3015 conditions, 1478 events. 933/1478 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 7233 event pairs, 933 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 3011. Up to 1478 conditions per place. [2023-09-01 07:31:57,835 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-09-01 07:31:57,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 28 transitions, 135 flow [2023-09-01 07:31:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2023-09-01 07:31:57,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4276094276094276 [2023-09-01 07:31:57,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2023-09-01 07:31:57,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2023-09-01 07:31:57,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:57,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2023-09-01 07:31:57,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:57,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:57,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:57,839 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 83 flow. Second operand 3 states and 381 transitions. [2023-09-01 07:31:57,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 28 transitions, 135 flow [2023-09-01 07:31:57,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 28 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:57,840 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 80 flow [2023-09-01 07:31:57,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2023-09-01 07:31:57,840 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -44 predicate places. [2023-09-01 07:31:57,840 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 80 flow [2023-09-01 07:31:57,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:57,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:57,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:31:57,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 07:31:57,841 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:57,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956198, now seen corresponding path program 1 times [2023-09-01 07:31:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:57,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869000452] [2023-09-01 07:31:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869000452] [2023-09-01 07:31:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869000452] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:57,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:57,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2235053] [2023-09-01 07:31:57,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:57,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:57,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:57,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:57,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:57,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:57,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:59,539 INFO L130 PetriNetUnfolder]: 733/1170 cut-off events. [2023-09-01 07:31:59,539 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2023-09-01 07:31:59,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1170 events. 733/1170 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5460 event pairs, 733 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 2392. Up to 1170 conditions per place. [2023-09-01 07:31:59,543 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-09-01 07:31:59,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 26 transitions, 128 flow [2023-09-01 07:31:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:59,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:59,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2023-09-01 07:31:59,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42536475869809204 [2023-09-01 07:31:59,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 379 transitions. [2023-09-01 07:31:59,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions. [2023-09-01 07:31:59,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:59,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions. [2023-09-01 07:31:59,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:59,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:59,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:59,548 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 80 flow. Second operand 3 states and 379 transitions. [2023-09-01 07:31:59,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 26 transitions, 128 flow [2023-09-01 07:31:59,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 26 transitions, 127 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:59,549 INFO L231 Difference]: Finished difference. Result has 51 places, 26 transitions, 77 flow [2023-09-01 07:31:59,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=51, PETRI_TRANSITIONS=26} [2023-09-01 07:31:59,550 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -45 predicate places. [2023-09-01 07:31:59,550 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 26 transitions, 77 flow [2023-09-01 07:31:59,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:59,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:59,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:31:59,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-09-01 07:31:59,551 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:31:59,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956193, now seen corresponding path program 1 times [2023-09-01 07:31:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:59,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959854546] [2023-09-01 07:31:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:59,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:59,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:59,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959854546] [2023-09-01 07:31:59,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959854546] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:59,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:59,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253639187] [2023-09-01 07:31:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:59,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:59,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:59,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:31:59,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 26 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:31:59,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:59,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:31:59,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:00,991 INFO L130 PetriNetUnfolder]: 557/898 cut-off events. [2023-09-01 07:32:00,991 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-09-01 07:32:00,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 898 events. 557/898 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3988 event pairs, 557 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 1845. Up to 898 conditions per place. [2023-09-01 07:32:00,995 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-09-01 07:32:00,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 24 transitions, 121 flow [2023-09-01 07:32:00,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:00,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2023-09-01 07:32:00,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42312008978675647 [2023-09-01 07:32:00,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2023-09-01 07:32:00,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2023-09-01 07:32:00,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:00,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2023-09-01 07:32:00,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:01,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:01,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:01,000 INFO L175 Difference]: Start difference. First operand has 51 places, 26 transitions, 77 flow. Second operand 3 states and 377 transitions. [2023-09-01 07:32:01,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 24 transitions, 121 flow [2023-09-01 07:32:01,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 24 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:01,001 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 74 flow [2023-09-01 07:32:01,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2023-09-01 07:32:01,002 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -46 predicate places. [2023-09-01 07:32:01,002 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 74 flow [2023-09-01 07:32:01,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:01,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:01,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:32:01,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-09-01 07:32:01,003 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:32:01,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:01,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956192, now seen corresponding path program 1 times [2023-09-01 07:32:01,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:01,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86639572] [2023-09-01 07:32:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:01,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:32:01,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:01,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86639572] [2023-09-01 07:32:01,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86639572] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:01,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:32:01,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:32:01,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494446489] [2023-09-01 07:32:01,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:01,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:32:01,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:32:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:32:01,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:32:01,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 24 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:01,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:01,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:32:01,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:02,217 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2023-09-01 07:32:02,217 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-09-01 07:32:02,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 662 events. 405/662 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2718 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1370. Up to 662 conditions per place. [2023-09-01 07:32:02,219 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-09-01 07:32:02,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 22 transitions, 114 flow [2023-09-01 07:32:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:02,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2023-09-01 07:32:02,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208754208754209 [2023-09-01 07:32:02,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2023-09-01 07:32:02,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2023-09-01 07:32:02,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:02,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2023-09-01 07:32:02,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:02,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:02,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:02,223 INFO L175 Difference]: Start difference. First operand has 50 places, 24 transitions, 74 flow. Second operand 3 states and 375 transitions. [2023-09-01 07:32:02,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 22 transitions, 114 flow [2023-09-01 07:32:02,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 22 transitions, 113 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:02,224 INFO L231 Difference]: Finished difference. Result has 49 places, 22 transitions, 71 flow [2023-09-01 07:32:02,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=49, PETRI_TRANSITIONS=22} [2023-09-01 07:32:02,225 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2023-09-01 07:32:02,225 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 22 transitions, 71 flow [2023-09-01 07:32:02,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:02,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:02,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:32:02,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-09-01 07:32:02,226 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:32:02,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:02,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956187, now seen corresponding path program 1 times [2023-09-01 07:32:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:02,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33385619] [2023-09-01 07:32:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:32:02,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:02,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33385619] [2023-09-01 07:32:02,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33385619] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:02,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:32:02,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:32:02,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059213617] [2023-09-01 07:32:02,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:02,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:32:02,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:02,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:32:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:32:02,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:32:02,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 22 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:02,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:02,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:32:02,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:03,348 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2023-09-01 07:32:03,348 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-09-01 07:32:03,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 462 events. 277/462 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1756 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 967. Up to 462 conditions per place. [2023-09-01 07:32:03,350 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-09-01 07:32:03,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 20 transitions, 107 flow [2023-09-01 07:32:03,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-09-01 07:32:03,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4186307519640853 [2023-09-01 07:32:03,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-09-01 07:32:03,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-09-01 07:32:03,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:03,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-09-01 07:32:03,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:03,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:03,355 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:03,355 INFO L175 Difference]: Start difference. First operand has 49 places, 22 transitions, 71 flow. Second operand 3 states and 373 transitions. [2023-09-01 07:32:03,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 20 transitions, 107 flow [2023-09-01 07:32:03,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 20 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:03,356 INFO L231 Difference]: Finished difference. Result has 48 places, 20 transitions, 68 flow [2023-09-01 07:32:03,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=48, PETRI_TRANSITIONS=20} [2023-09-01 07:32:03,356 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -48 predicate places. [2023-09-01 07:32:03,357 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 20 transitions, 68 flow [2023-09-01 07:32:03,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:03,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:03,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:32:03,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-09-01 07:32:03,357 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:32:03,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:03,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956186, now seen corresponding path program 1 times [2023-09-01 07:32:03,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:03,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869040486] [2023-09-01 07:32:03,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:03,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:32:03,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:03,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869040486] [2023-09-01 07:32:03,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869040486] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:03,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:32:03,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:32:03,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855325423] [2023-09-01 07:32:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:03,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:32:03,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:32:03,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:32:03,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:32:03,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 20 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:03,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:03,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:32:03,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:04,172 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2023-09-01 07:32:04,172 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-09-01 07:32:04,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1009 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 636. Up to 298 conditions per place. [2023-09-01 07:32:04,173 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-09-01 07:32:04,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 18 transitions, 100 flow [2023-09-01 07:32:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-09-01 07:32:04,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4163860830527497 [2023-09-01 07:32:04,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-09-01 07:32:04,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-09-01 07:32:04,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:04,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-09-01 07:32:04,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,176 INFO L175 Difference]: Start difference. First operand has 48 places, 20 transitions, 68 flow. Second operand 3 states and 371 transitions. [2023-09-01 07:32:04,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 18 transitions, 100 flow [2023-09-01 07:32:04,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 18 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:04,177 INFO L231 Difference]: Finished difference. Result has 47 places, 18 transitions, 65 flow [2023-09-01 07:32:04,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=47, PETRI_TRANSITIONS=18} [2023-09-01 07:32:04,177 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2023-09-01 07:32:04,177 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 18 transitions, 65 flow [2023-09-01 07:32:04,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:04,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:32:04,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-09-01 07:32:04,178 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:32:04,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956181, now seen corresponding path program 1 times [2023-09-01 07:32:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:04,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703373456] [2023-09-01 07:32:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:04,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:32:04,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:04,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703373456] [2023-09-01 07:32:04,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703373456] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:04,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:32:04,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:32:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542513912] [2023-09-01 07:32:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:04,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:32:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:04,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:32:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:32:04,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:32:04,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 18 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:04,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:32:04,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:04,764 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2023-09-01 07:32:04,764 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 07:32:04,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 471 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 377. Up to 170 conditions per place. [2023-09-01 07:32:04,765 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-09-01 07:32:04,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 93 flow [2023-09-01 07:32:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:04,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:04,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-09-01 07:32:04,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41414141414141414 [2023-09-01 07:32:04,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-09-01 07:32:04,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-09-01 07:32:04,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:04,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-09-01 07:32:04,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,768 INFO L175 Difference]: Start difference. First operand has 47 places, 18 transitions, 65 flow. Second operand 3 states and 369 transitions. [2023-09-01 07:32:04,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 93 flow [2023-09-01 07:32:04,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 16 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:04,769 INFO L231 Difference]: Finished difference. Result has 46 places, 16 transitions, 62 flow [2023-09-01 07:32:04,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=46, PETRI_TRANSITIONS=16} [2023-09-01 07:32:04,770 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -50 predicate places. [2023-09-01 07:32:04,770 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 16 transitions, 62 flow [2023-09-01 07:32:04,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:04,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:04,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:32:04,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-09-01 07:32:04,771 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-09-01 07:32:04,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2043956180, now seen corresponding path program 1 times [2023-09-01 07:32:04,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:04,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701490200] [2023-09-01 07:32:04,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:04,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:32:05,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:05,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701490200] [2023-09-01 07:32:05,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701490200] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:05,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:32:05,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:32:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129476455] [2023-09-01 07:32:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:05,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:32:05,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:05,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:32:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:32:05,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 297 [2023-09-01 07:32:05,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 16 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:05,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:05,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 297 [2023-09-01 07:32:05,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:05,200 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-09-01 07:32:05,200 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:32:05,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 190. Up to 78 conditions per place. [2023-09-01 07:32:05,200 INFO L137 encePairwiseOnDemand]: 294/297 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-09-01 07:32:05,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 14 transitions, 86 flow [2023-09-01 07:32:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-09-01 07:32:05,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4118967452300786 [2023-09-01 07:32:05,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-09-01 07:32:05,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-09-01 07:32:05,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:05,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-09-01 07:32:05,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:05,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:05,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:05,205 INFO L175 Difference]: Start difference. First operand has 46 places, 16 transitions, 62 flow. Second operand 3 states and 367 transitions. [2023-09-01 07:32:05,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 14 transitions, 86 flow [2023-09-01 07:32:05,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 14 transitions, 85 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:05,205 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-09-01 07:32:05,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-09-01 07:32:05,206 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -51 predicate places. [2023-09-01 07:32:05,206 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-09-01 07:32:05,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:32:05,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (146 of 147 remaining) [2023-09-01 07:32:05,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (145 of 147 remaining) [2023-09-01 07:32:05,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (144 of 147 remaining) [2023-09-01 07:32:05,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (143 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (142 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (141 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (140 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (139 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (138 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (137 of 147 remaining) [2023-09-01 07:32:05,210 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (136 of 147 remaining) [2023-09-01 07:32:05,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (135 of 147 remaining) [2023-09-01 07:32:05,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (134 of 147 remaining) [2023-09-01 07:32:05,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (133 of 147 remaining) [2023-09-01 07:32:05,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (132 of 147 remaining) [2023-09-01 07:32:05,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (131 of 147 remaining) [2023-09-01 07:32:05,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (130 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (129 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (128 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (127 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (126 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (125 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (124 of 147 remaining) [2023-09-01 07:32:05,212 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (123 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (122 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (121 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (120 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (119 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (118 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (117 of 147 remaining) [2023-09-01 07:32:05,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (116 of 147 remaining) [2023-09-01 07:32:05,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (115 of 147 remaining) [2023-09-01 07:32:05,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (114 of 147 remaining) [2023-09-01 07:32:05,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (113 of 147 remaining) [2023-09-01 07:32:05,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (112 of 147 remaining) [2023-09-01 07:32:05,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (111 of 147 remaining) [2023-09-01 07:32:05,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (110 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (109 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (108 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (107 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (106 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (105 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (104 of 147 remaining) [2023-09-01 07:32:05,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (103 of 147 remaining) [2023-09-01 07:32:05,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (102 of 147 remaining) [2023-09-01 07:32:05,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (101 of 147 remaining) [2023-09-01 07:32:05,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (100 of 147 remaining) [2023-09-01 07:32:05,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (99 of 147 remaining) [2023-09-01 07:32:05,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (98 of 147 remaining) [2023-09-01 07:32:05,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (97 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (96 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 147 remaining) [2023-09-01 07:32:05,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 147 remaining) [2023-09-01 07:32:05,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 147 remaining) [2023-09-01 07:32:05,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 147 remaining) [2023-09-01 07:32:05,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 147 remaining) [2023-09-01 07:32:05,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 147 remaining) [2023-09-01 07:32:05,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 147 remaining) [2023-09-01 07:32:05,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 147 remaining) [2023-09-01 07:32:05,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (74 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 147 remaining) [2023-09-01 07:32:05,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 147 remaining) [2023-09-01 07:32:05,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 147 remaining) [2023-09-01 07:32:05,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 147 remaining) [2023-09-01 07:32:05,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 147 remaining) [2023-09-01 07:32:05,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 147 remaining) [2023-09-01 07:32:05,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 147 remaining) [2023-09-01 07:32:05,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 147 remaining) [2023-09-01 07:32:05,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 147 remaining) [2023-09-01 07:32:05,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 147 remaining) [2023-09-01 07:32:05,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 147 remaining) [2023-09-01 07:32:05,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 147 remaining) [2023-09-01 07:32:05,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 147 remaining) [2023-09-01 07:32:05,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 147 remaining) [2023-09-01 07:32:05,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 147 remaining) [2023-09-01 07:32:05,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 147 remaining) [2023-09-01 07:32:05,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 147 remaining) [2023-09-01 07:32:05,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 147 remaining) [2023-09-01 07:32:05,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 147 remaining) [2023-09-01 07:32:05,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 147 remaining) [2023-09-01 07:32:05,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 147 remaining) [2023-09-01 07:32:05,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 147 remaining) [2023-09-01 07:32:05,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 147 remaining) [2023-09-01 07:32:05,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 147 remaining) [2023-09-01 07:32:05,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 147 remaining) [2023-09-01 07:32:05,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 147 remaining) [2023-09-01 07:32:05,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 147 remaining) [2023-09-01 07:32:05,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 147 remaining) [2023-09-01 07:32:05,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 147 remaining) [2023-09-01 07:32:05,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 147 remaining) [2023-09-01 07:32:05,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 147 remaining) [2023-09-01 07:32:05,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 147 remaining) [2023-09-01 07:32:05,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 147 remaining) [2023-09-01 07:32:05,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 147 remaining) [2023-09-01 07:32:05,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 147 remaining) [2023-09-01 07:32:05,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 147 remaining) [2023-09-01 07:32:05,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-09-01 07:32:05,232 INFO L445 BasicCegarLoop]: Path program 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] [2023-09-01 07:32:05,237 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:32:05,237 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:32:05,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:32:05 BasicIcfg [2023-09-01 07:32:05,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:32:05,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:32:05,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:32:05,241 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:32:05,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:24:37" (3/4) ... [2023-09-01 07:32:05,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 07:32:05,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-09-01 07:32:05,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-09-01 07:32:05,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-09-01 07:32:05,251 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-09-01 07:32:05,252 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 07:32:05,252 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 07:32:05,252 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 07:32:05,281 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:32:05,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:32:05,282 INFO L158 Benchmark]: Toolchain (without parser) took 453605.16ms. Allocated memory was 65.0MB in the beginning and 5.2GB in the end (delta: 5.1GB). Free memory was 42.3MB in the beginning and 3.0GB in the end (delta: -3.0GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-09-01 07:32:05,282 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 52.4MB. Free memory was 30.7MB in the beginning and 30.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:32:05,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.91ms. Allocated memory is still 65.0MB. Free memory was 42.0MB in the beginning and 30.3MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 07:32:05,283 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.56ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 42.7MB in the end (delta: -12.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-09-01 07:32:05,283 INFO L158 Benchmark]: Boogie Preprocessor took 77.34ms. Allocated memory is still 65.0MB. Free memory was 42.7MB in the beginning and 40.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:32:05,283 INFO L158 Benchmark]: RCFGBuilder took 5611.09ms. Allocated memory was 65.0MB in the beginning and 494.9MB in the end (delta: 429.9MB). Free memory was 40.4MB in the beginning and 171.7MB in the end (delta: -131.3MB). Peak memory consumption was 300.7MB. Max. memory is 16.1GB. [2023-09-01 07:32:05,284 INFO L158 Benchmark]: TraceAbstraction took 447453.84ms. Allocated memory was 494.9MB in the beginning and 5.2GB in the end (delta: 4.7GB). Free memory was 170.6MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-09-01 07:32:05,284 INFO L158 Benchmark]: Witness Printer took 41.25ms. Allocated memory is still 5.2GB. Free memory was 3.1GB in the beginning and 3.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 07:32:05,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 52.4MB. Free memory was 30.7MB in the beginning and 30.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.91ms. Allocated memory is still 65.0MB. Free memory was 42.0MB in the beginning and 30.3MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.56ms. Allocated memory is still 65.0MB. Free memory was 30.3MB in the beginning and 42.7MB in the end (delta: -12.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.34ms. Allocated memory is still 65.0MB. Free memory was 42.7MB in the beginning and 40.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5611.09ms. Allocated memory was 65.0MB in the beginning and 494.9MB in the end (delta: 429.9MB). Free memory was 40.4MB in the beginning and 171.7MB in the end (delta: -131.3MB). Peak memory consumption was 300.7MB. Max. memory is 16.1GB. * TraceAbstraction took 447453.84ms. Allocated memory was 494.9MB in the beginning and 5.2GB in the end (delta: 4.7GB). Free memory was 170.6MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 41.25ms. Allocated memory is still 5.2GB. Free memory was 3.1GB in the beginning and 3.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.4s, 191 PlacesBefore, 96 PlacesAfterwards, 181 TransitionsBefore, 86 TransitionsAfterwards, 6318 CoEnabledTransitionPairs, 8 FixpointIterations, 77 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 95 TotalNumberOfCompositions, 3619 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3619, independent: 3619, independent conditional: 0, independent unconditional: 3619, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1233, independent: 1233, independent conditional: 0, independent unconditional: 1233, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3619, independent: 2386, independent conditional: 0, independent unconditional: 2386, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1233, unknown conditional: 0, unknown unconditional: 1233] , Statistics on independence cache: Total cache size (in pairs): 303, Positive cache size: 303, Positive conditional cache size: 0, Positive unconditional cache size: 303, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 106]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: 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 7 procedures, 289 locations, 147 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: 445.9s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 386.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 53.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 881 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 824 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 988 IncrementalHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 20 mSDtfsCounter, 988 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, InterpolantAutomatonStates: 74, 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, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 72 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 07:32:05,326 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