./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-node-subst.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-node-subst.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 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --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 07:30:21,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:30:21,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:30:22,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:30:22,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:30:22,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:30:22,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:30:22,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:30:22,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:30:22,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:30:22,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:30:22,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:30:22,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:30:22,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:30:22,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:30:22,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:30:22,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:30:22,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:30:22,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:30:22,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:30:22,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:30:22,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:30:22,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:30:22,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:30:22,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:30:22,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:30:22,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:30:22,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:30:22,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:30:22,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:30:22,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:30:22,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:30:22,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:30:22,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:30:22,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:30:22,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:30:22,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:30:22,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:30:22,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:30:22,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:30:22,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:30:22,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:30:22,131 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:30:22,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:30:22,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:30:22,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:30:22,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:30:22,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:30:22,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:30:22,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:30:22,135 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:30:22,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:30:22,136 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:30:22,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:30:22,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:30:22,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:30:22,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:30:22,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:30:22,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:30:22,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:30:22,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:30:22,138 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:30:22,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:30:22,138 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:30:22,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:30:22,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:30:22,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:30:22,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:30:22,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:30:22,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:30:22,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:30:22,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:30:22,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:30:22,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:30:22,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:30:22,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:30:22,141 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:30:22,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:30:22,141 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:30:22,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:30:22,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:30:22,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:30:22,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:30:22,475 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:30:22,476 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:30:22,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-09-01 07:30:23,697 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:30:23,896 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:30:23,897 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-09-01 07:30:23,903 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68498c7b0/ce8feb462ec04b568783cc8592b9952a/FLAG50a27a5cb [2023-09-01 07:30:23,915 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68498c7b0/ce8feb462ec04b568783cc8592b9952a [2023-09-01 07:30:23,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:30:23,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:30:23,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:30:23,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:30:23,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:30:23,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:30:23" (1/1) ... [2023-09-01 07:30:23,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5560bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:23, skipping insertion in model container [2023-09-01 07:30:23,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:30:23" (1/1) ... [2023-09-01 07:30:23,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:30:23,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:30:24,150 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-node-subst.wvr.c[3996,4009] [2023-09-01 07:30:24,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:30:24,186 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:30:24,224 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-node-subst.wvr.c[3996,4009] [2023-09-01 07:30:24,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:30:24,258 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:30:24,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24 WrapperNode [2023-09-01 07:30:24,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:30:24,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:30:24,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:30:24,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:30:24,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,362 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 497 [2023-09-01 07:30:24,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:30:24,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:30:24,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:30:24,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:30:24,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:30:24,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:30:24,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:30:24,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:30:24,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (1/1) ... [2023-09-01 07:30:24,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:30:24,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:30:24,458 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 07:30:24,484 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 07:30:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:30:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:30:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:30:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:30:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:30:24,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:30:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:30:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:30:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-01 07:30:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-01 07:30:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:30:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 07:30:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:30:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:30:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:30:24,505 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 07:30:24,607 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:30:24,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:30:25,354 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:30:25,378 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:30:25,379 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-09-01 07:30:25,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:30:25 BoogieIcfgContainer [2023-09-01 07:30:25,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:30:25,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:30:25,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:30:25,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:30:25,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:30:23" (1/3) ... [2023-09-01 07:30:25,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8d289d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:30:25, skipping insertion in model container [2023-09-01 07:30:25,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:30:24" (2/3) ... [2023-09-01 07:30:25,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8d289d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:30:25, skipping insertion in model container [2023-09-01 07:30:25,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:30:25" (3/3) ... [2023-09-01 07:30:25,391 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-09-01 07:30:25,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:30:25,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:30:25,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-09-01 07:30:25,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:30:25,570 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-01 07:30:25,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 577 places, 614 transitions, 1252 flow [2023-09-01 07:30:25,824 INFO L130 PetriNetUnfolder]: 47/611 cut-off events. [2023-09-01 07:30:25,824 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 07:30:25,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 611 events. 47/611 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1065 event pairs, 0 based on Foata normal form. 0/522 useless extension candidates. Maximal degree in co-relation 517. Up to 2 conditions per place. [2023-09-01 07:30:25,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 577 places, 614 transitions, 1252 flow [2023-09-01 07:30:25,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 557 places, 593 transitions, 1201 flow [2023-09-01 07:30:25,854 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:30:25,866 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 557 places, 593 transitions, 1201 flow [2023-09-01 07:30:25,870 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 557 places, 593 transitions, 1201 flow [2023-09-01 07:30:25,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 557 places, 593 transitions, 1201 flow [2023-09-01 07:30:25,984 INFO L130 PetriNetUnfolder]: 46/593 cut-off events. [2023-09-01 07:30:25,984 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:30:25,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 593 events. 46/593 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1064 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 517. Up to 2 conditions per place. [2023-09-01 07:30:26,007 INFO L119 LiptonReduction]: Number of co-enabled transitions 34440 [2023-09-01 07:30:52,430 INFO L134 LiptonReduction]: Checked pairs total: 44964 [2023-09-01 07:30:52,431 INFO L136 LiptonReduction]: Total number of compositions: 761 [2023-09-01 07:30:52,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:30:52,458 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;@7e7c2197, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:30:52,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-09-01 07:30:52,461 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-09-01 07:30:52,461 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:30:52,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:52,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-09-01 07:30:52,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:30:52,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 1 times [2023-09-01 07:30:52,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:52,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250719722] [2023-09-01 07:30:52,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:52,578 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 07:30:52,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250719722] [2023-09-01 07:30:52,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250719722] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:52,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:52,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-09-01 07:30:52,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175248258] [2023-09-01 07:30:52,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:52,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 07:30:52,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:52,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 07:30:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 07:30:52,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 578 out of 1375 [2023-09-01 07:30:52,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 177 flow. Second operand has 2 states, 2 states have (on average 578.5) internal successors, (1157), 2 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 07:30:52,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:52,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 578 of 1375 [2023-09-01 07:30:52,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:53,816 INFO L130 PetriNetUnfolder]: 4309/6198 cut-off events. [2023-09-01 07:30:53,817 INFO L131 PetriNetUnfolder]: For 296/296 co-relation queries the response was YES. [2023-09-01 07:30:53,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12739 conditions, 6198 events. 4309/6198 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 29847 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 11796. Up to 6199 conditions per place. [2023-09-01 07:30:53,852 INFO L137 encePairwiseOnDemand]: 1367/1375 looper letters, 73 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-09-01 07:30:53,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 307 flow [2023-09-01 07:30:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 07:30:53,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 07:30:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1237 transitions. [2023-09-01 07:30:53,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44981818181818184 [2023-09-01 07:30:53,915 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1237 transitions. [2023-09-01 07:30:53,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1237 transitions. [2023-09-01 07:30:53,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:53,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1237 transitions. [2023-09-01 07:30:53,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 618.5) internal successors, (1237), 2 states have internal predecessors, (1237), 0 states have call successors, (0), 0 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 07:30:53,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1375.0) internal successors, (4125), 3 states have internal predecessors, (4125), 0 states have call successors, (0), 0 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 07:30:53,959 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1375.0) internal successors, (4125), 3 states have internal predecessors, (4125), 0 states have call successors, (0), 0 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 07:30:53,961 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 177 flow. Second operand 2 states and 1237 transitions. [2023-09-01 07:30:53,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 307 flow [2023-09-01 07:30:53,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 298 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 07:30:53,985 INFO L231 Difference]: Finished difference. Result has 70 places, 73 transitions, 152 flow [2023-09-01 07:30:53,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=152, PETRI_PLACES=70, PETRI_TRANSITIONS=73} [2023-09-01 07:30:53,990 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2023-09-01 07:30:54,005 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 73 transitions, 152 flow [2023-09-01 07:30:54,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 578.5) internal successors, (1157), 2 states have internal predecessors, (1157), 0 states have call successors, (0), 0 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 07:30:54,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:54,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 07:30:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:30:54,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:30:54,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 77732, now seen corresponding path program 1 times [2023-09-01 07:30:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914106744] [2023-09-01 07:30:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:54,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:30:54,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:54,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914106744] [2023-09-01 07:30:54,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914106744] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:54,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:54,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:30:54,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355451441] [2023-09-01 07:30:54,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:54,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:54,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:54,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:54,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1375 [2023-09-01 07:30:54,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 73 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 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 07:30:54,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:54,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1375 [2023-09-01 07:30:54,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:55,474 INFO L130 PetriNetUnfolder]: 4309/6196 cut-off events. [2023-09-01 07:30:55,474 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 07:30:55,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12649 conditions, 6196 events. 4309/6196 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 29844 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12646. Up to 6196 conditions per place. [2023-09-01 07:30:55,505 INFO L137 encePairwiseOnDemand]: 1372/1375 looper letters, 70 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-09-01 07:30:55,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 71 transitions, 290 flow [2023-09-01 07:30:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:55,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:55,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2023-09-01 07:30:55,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43224242424242426 [2023-09-01 07:30:55,511 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1783 transitions. [2023-09-01 07:30:55,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1783 transitions. [2023-09-01 07:30:55,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:55,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1783 transitions. [2023-09-01 07:30:55,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 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 07:30:55,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:55,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:55,525 INFO L175 Difference]: Start difference. First operand has 70 places, 73 transitions, 152 flow. Second operand 3 states and 1783 transitions. [2023-09-01 07:30:55,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 71 transitions, 290 flow [2023-09-01 07:30:55,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 71 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 07:30:55,527 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 150 flow [2023-09-01 07:30:55,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2023-09-01 07:30:55,528 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2023-09-01 07:30:55,529 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 150 flow [2023-09-01 07:30:55,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 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 07:30:55,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:55,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 07:30:55,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:30:55,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:30:55,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:55,531 INFO L85 PathProgramCache]: Analyzing trace with hash 77731, now seen corresponding path program 1 times [2023-09-01 07:30:55,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:55,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461504860] [2023-09-01 07:30:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:30:55,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:55,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461504860] [2023-09-01 07:30:55,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461504860] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:55,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:55,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:30:55,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806736110] [2023-09-01 07:30:55,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:55,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:55,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:55,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:55,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:55,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 572 out of 1375 [2023-09-01 07:30:55,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 572.6666666666666) internal successors, (1718), 3 states have internal predecessors, (1718), 0 states have call successors, (0), 0 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 07:30:55,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:55,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 572 of 1375 [2023-09-01 07:30:55,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:56,570 INFO L130 PetriNetUnfolder]: 4309/6194 cut-off events. [2023-09-01 07:30:56,570 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 07:30:56,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12647 conditions, 6194 events. 4309/6194 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 29840 event pairs, 3825 based on Foata normal form. 0/3340 useless extension candidates. Maximal degree in co-relation 12643. Up to 6194 conditions per place. [2023-09-01 07:30:56,605 INFO L137 encePairwiseOnDemand]: 1372/1375 looper letters, 68 selfloop transitions, 1 changer transitions 0/69 dead transitions. [2023-09-01 07:30:56,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 69 transitions, 284 flow [2023-09-01 07:30:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1787 transitions. [2023-09-01 07:30:56,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332121212121212 [2023-09-01 07:30:56,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1787 transitions. [2023-09-01 07:30:56,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1787 transitions. [2023-09-01 07:30:56,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:56,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1787 transitions. [2023-09-01 07:30:56,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 595.6666666666666) internal successors, (1787), 3 states have internal predecessors, (1787), 0 states have call successors, (0), 0 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 07:30:56,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:56,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:56,626 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 150 flow. Second operand 3 states and 1787 transitions. [2023-09-01 07:30:56,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 69 transitions, 284 flow [2023-09-01 07:30:56,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 69 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:30:56,628 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 147 flow [2023-09-01 07:30:56,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=69, PETRI_TRANSITIONS=69} [2023-09-01 07:30:56,629 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2023-09-01 07:30:56,629 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 147 flow [2023-09-01 07:30:56,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.6666666666666) internal successors, (1718), 3 states have internal predecessors, (1718), 0 states have call successors, (0), 0 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 07:30:56,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:56,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 07:30:56,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:30:56,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:30:56,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:56,632 INFO L85 PathProgramCache]: Analyzing trace with hash 77639, now seen corresponding path program 1 times [2023-09-01 07:30:56,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:56,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961221754] [2023-09-01 07:30:56,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:56,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:56,689 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 07:30:56,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:56,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961221754] [2023-09-01 07:30:56,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961221754] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:56,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:56,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:30:56,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209056388] [2023-09-01 07:30:56,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:56,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:56,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:56,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:56,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:56,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1375 [2023-09-01 07:30:56,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 69 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 569.6666666666666) internal successors, (1709), 3 states have internal predecessors, (1709), 0 states have call successors, (0), 0 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 07:30:56,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:56,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1375 [2023-09-01 07:30:56,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:58,288 INFO L130 PetriNetUnfolder]: 8617/12381 cut-off events. [2023-09-01 07:30:58,288 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2023-09-01 07:30:58,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25276 conditions, 12381 events. 8617/12381 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 66718 event pairs, 7650 based on Foata normal form. 0/6679 useless extension candidates. Maximal degree in co-relation 25272. Up to 6195 conditions per place. [2023-09-01 07:30:58,346 INFO L137 encePairwiseOnDemand]: 1363/1375 looper letters, 125 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2023-09-01 07:30:58,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 131 transitions, 539 flow [2023-09-01 07:30:58,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:58,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1844 transitions. [2023-09-01 07:30:58,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44703030303030306 [2023-09-01 07:30:58,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1844 transitions. [2023-09-01 07:30:58,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1844 transitions. [2023-09-01 07:30:58,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:58,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1844 transitions. [2023-09-01 07:30:58,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 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 07:30:58,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:58,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:58,371 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 147 flow. Second operand 3 states and 1844 transitions. [2023-09-01 07:30:58,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 131 transitions, 539 flow [2023-09-01 07:30:58,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 131 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:30:58,376 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 202 flow [2023-09-01 07:30:58,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2023-09-01 07:30:58,379 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -10 predicate places. [2023-09-01 07:30:58,379 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 202 flow [2023-09-01 07:30:58,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.6666666666666) internal successors, (1709), 3 states have internal predecessors, (1709), 0 states have call successors, (0), 0 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 07:30:58,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:58,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:30:58,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:30:58,382 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:30:58,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2412280, now seen corresponding path program 1 times [2023-09-01 07:30:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:58,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065541782] [2023-09-01 07:30:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:58,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:30:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:30:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:30:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:30:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065541782] [2023-09-01 07:30:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065541782] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:30:58,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:30:58,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:30:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453567966] [2023-09-01 07:30:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:30:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:30:58,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:30:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:30:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:30:58,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1375 [2023-09-01 07:30:58,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 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 07:30:58,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:30:58,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1375 [2023-09-01 07:30:58,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:30:59,915 INFO L130 PetriNetUnfolder]: 8617/12378 cut-off events. [2023-09-01 07:30:59,915 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2023-09-01 07:30:59,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25291 conditions, 12378 events. 8617/12378 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 66615 event pairs, 7650 based on Foata normal form. 0/6687 useless extension candidates. Maximal degree in co-relation 25286. Up to 12378 conditions per place. [2023-09-01 07:30:59,967 INFO L137 encePairwiseOnDemand]: 1371/1375 looper letters, 70 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2023-09-01 07:30:59,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 71 transitions, 332 flow [2023-09-01 07:30:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:30:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:30:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2023-09-01 07:30:59,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43054545454545456 [2023-09-01 07:30:59,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2023-09-01 07:30:59,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2023-09-01 07:30:59,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:30:59,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2023-09-01 07:30:59,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 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 07:30:59,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:59,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:30:59,984 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 202 flow. Second operand 3 states and 1776 transitions. [2023-09-01 07:30:59,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 71 transitions, 332 flow [2023-09-01 07:30:59,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 71 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:30:59,986 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 180 flow [2023-09-01 07:30:59,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2023-09-01 07:30:59,987 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2023-09-01 07:30:59,987 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 180 flow [2023-09-01 07:30:59,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 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 07:30:59,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:30:59,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:30:59,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:30:59,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:30:59,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:30:59,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2414611, now seen corresponding path program 1 times [2023-09-01 07:30:59,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:30:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301813421] [2023-09-01 07:30:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:30:59,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:00,045 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 07:31:00,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301813421] [2023-09-01 07:31:00,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301813421] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:00,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:00,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:00,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112394633] [2023-09-01 07:31:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:00,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:00,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:00,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:00,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 572 out of 1375 [2023-09-01 07:31:00,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 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 07:31:00,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:00,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 572 of 1375 [2023-09-01 07:31:00,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:01,287 INFO L130 PetriNetUnfolder]: 8617/12374 cut-off events. [2023-09-01 07:31:01,288 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2023-09-01 07:31:01,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25278 conditions, 12374 events. 8617/12374 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 66587 event pairs, 7650 based on Foata normal form. 0/6683 useless extension candidates. Maximal degree in co-relation 25273. Up to 12374 conditions per place. [2023-09-01 07:31:01,332 INFO L137 encePairwiseOnDemand]: 1372/1375 looper letters, 68 selfloop transitions, 1 changer transitions 0/69 dead transitions. [2023-09-01 07:31:01,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 69 transitions, 314 flow [2023-09-01 07:31:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1782 transitions. [2023-09-01 07:31:01,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.432 [2023-09-01 07:31:01,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1782 transitions. [2023-09-01 07:31:01,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1782 transitions. [2023-09-01 07:31:01,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:01,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1782 transitions. [2023-09-01 07:31:01,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 594.0) internal successors, (1782), 3 states have internal predecessors, (1782), 0 states have call successors, (0), 0 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 07:31:01,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:01,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:01,362 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 180 flow. Second operand 3 states and 1782 transitions. [2023-09-01 07:31:01,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 69 transitions, 314 flow [2023-09-01 07:31:01,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 313 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:01,366 INFO L231 Difference]: Finished difference. Result has 68 places, 69 transitions, 177 flow [2023-09-01 07:31:01,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=68, PETRI_TRANSITIONS=69} [2023-09-01 07:31:01,367 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -14 predicate places. [2023-09-01 07:31:01,369 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 69 transitions, 177 flow [2023-09-01 07:31:01,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 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 07:31:01,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:01,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:01,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:31:01,372 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:01,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2414678, now seen corresponding path program 1 times [2023-09-01 07:31:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:01,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981896172] [2023-09-01 07:31:01,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:01,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:01,422 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 07:31:01,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:01,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981896172] [2023-09-01 07:31:01,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981896172] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:01,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:01,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:01,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227284398] [2023-09-01 07:31:01,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:01,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:01,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:01,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:01,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1375 [2023-09-01 07:31:01,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 69 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 571.0) internal successors, (1713), 3 states have internal predecessors, (1713), 0 states have call successors, (0), 0 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 07:31:01,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:01,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1375 [2023-09-01 07:31:01,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:02,812 INFO L130 PetriNetUnfolder]: 8617/12370 cut-off events. [2023-09-01 07:31:02,812 INFO L131 PetriNetUnfolder]: For 96/96 co-relation queries the response was YES. [2023-09-01 07:31:02,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25271 conditions, 12370 events. 8617/12370 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 66550 event pairs, 7650 based on Foata normal form. 2/6683 useless extension candidates. Maximal degree in co-relation 25266. Up to 12370 conditions per place. [2023-09-01 07:31:02,865 INFO L137 encePairwiseOnDemand]: 1372/1375 looper letters, 66 selfloop transitions, 1 changer transitions 0/67 dead transitions. [2023-09-01 07:31:02,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 67 transitions, 307 flow [2023-09-01 07:31:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1774 transitions. [2023-09-01 07:31:02,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4300606060606061 [2023-09-01 07:31:02,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1774 transitions. [2023-09-01 07:31:02,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1774 transitions. [2023-09-01 07:31:02,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:02,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1774 transitions. [2023-09-01 07:31:02,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 0 states have call successors, (0), 0 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 07:31:02,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:02,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:02,889 INFO L175 Difference]: Start difference. First operand has 68 places, 69 transitions, 177 flow. Second operand 3 states and 1774 transitions. [2023-09-01 07:31:02,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 67 transitions, 307 flow [2023-09-01 07:31:02,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:02,891 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 174 flow [2023-09-01 07:31:02,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2023-09-01 07:31:02,892 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -15 predicate places. [2023-09-01 07:31:02,892 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 174 flow [2023-09-01 07:31:02,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.0) internal successors, (1713), 3 states have internal predecessors, (1713), 0 states have call successors, (0), 0 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 07:31:02,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:02,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:31:02,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:31:02,896 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:02,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2412279, now seen corresponding path program 1 times [2023-09-01 07:31:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:02,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006315211] [2023-09-01 07:31:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:02,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:02,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006315211] [2023-09-01 07:31:02,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006315211] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:31:02,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188678267] [2023-09-01 07:31:02,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:02,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:02,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:31:02,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:31:02,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-09-01 07:31:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:03,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:31:03,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:31:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:03,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 07:31:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188678267] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 07:31:03,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 07:31:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-09-01 07:31:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651539458] [2023-09-01 07:31:03,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 07:31:03,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 07:31:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 07:31:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-09-01 07:31:03,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1375 [2023-09-01 07:31:03,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 570.1428571428571) internal successors, (3991), 7 states have internal predecessors, (3991), 0 states have call successors, (0), 0 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 07:31:03,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:03,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1375 [2023-09-01 07:31:03,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:06,480 INFO L130 PetriNetUnfolder]: 21541/30919 cut-off events. [2023-09-01 07:31:06,480 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2023-09-01 07:31:06,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63147 conditions, 30919 events. 21541/30919 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 1104. Compared 186755 event pairs, 19125 based on Foata normal form. 0/16701 useless extension candidates. Maximal degree in co-relation 63142. Up to 6189 conditions per place. [2023-09-01 07:31:06,611 INFO L137 encePairwiseOnDemand]: 1366/1375 looper letters, 273 selfloop transitions, 21 changer transitions 0/294 dead transitions. [2023-09-01 07:31:06,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 294 transitions, 1270 flow [2023-09-01 07:31:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:31:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:31:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3717 transitions. [2023-09-01 07:31:06,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4505454545454545 [2023-09-01 07:31:06,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3717 transitions. [2023-09-01 07:31:06,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3717 transitions. [2023-09-01 07:31:06,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:06,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3717 transitions. [2023-09-01 07:31:06,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 619.5) internal successors, (3717), 6 states have internal predecessors, (3717), 0 states have call successors, (0), 0 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 07:31:06,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1375.0) internal successors, (9625), 7 states have internal predecessors, (9625), 0 states have call successors, (0), 0 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 07:31:06,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1375.0) internal successors, (9625), 7 states have internal predecessors, (9625), 0 states have call successors, (0), 0 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 07:31:06,643 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 174 flow. Second operand 6 states and 3717 transitions. [2023-09-01 07:31:06,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 294 transitions, 1270 flow [2023-09-01 07:31:06,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 294 transitions, 1269 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:06,647 INFO L231 Difference]: Finished difference. Result has 74 places, 82 transitions, 323 flow [2023-09-01 07:31:06,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=74, PETRI_TRANSITIONS=82} [2023-09-01 07:31:06,648 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2023-09-01 07:31:06,648 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 82 transitions, 323 flow [2023-09-01 07:31:06,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 570.1428571428571) internal successors, (3991), 7 states have internal predecessors, (3991), 0 states have call successors, (0), 0 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 07:31:06,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:06,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 07:31:06,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-09-01 07:31:06,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:06,856 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:06,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash 74862323, now seen corresponding path program 1 times [2023-09-01 07:31:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:06,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449815170] [2023-09-01 07:31:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:06,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:06,901 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 07:31:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:06,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449815170] [2023-09-01 07:31:06,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449815170] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:06,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:06,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:06,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999367740] [2023-09-01 07:31:06,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:06,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:06,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:06,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:06,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:06,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 572 out of 1375 [2023-09-01 07:31:06,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 82 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 0 states have call successors, (0), 0 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 07:31:06,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:06,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 572 of 1375 [2023-09-01 07:31:06,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:10,148 INFO L130 PetriNetUnfolder]: 21541/30914 cut-off events. [2023-09-01 07:31:10,148 INFO L131 PetriNetUnfolder]: For 245/245 co-relation queries the response was YES. [2023-09-01 07:31:10,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63188 conditions, 30914 events. 21541/30914 cut-off events. For 245/245 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 188536 event pairs, 19125 based on Foata normal form. 0/16710 useless extension candidates. Maximal degree in co-relation 63180. Up to 30914 conditions per place. [2023-09-01 07:31:10,281 INFO L137 encePairwiseOnDemand]: 1373/1375 looper letters, 80 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2023-09-01 07:31:10,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 81 transitions, 483 flow [2023-09-01 07:31:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1778 transitions. [2023-09-01 07:31:10,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43103030303030304 [2023-09-01 07:31:10,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1778 transitions. [2023-09-01 07:31:10,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1778 transitions. [2023-09-01 07:31:10,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:10,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1778 transitions. [2023-09-01 07:31:10,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.6666666666666) internal successors, (1778), 3 states have internal predecessors, (1778), 0 states have call successors, (0), 0 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 07:31:10,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:10,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:10,298 INFO L175 Difference]: Start difference. First operand has 74 places, 82 transitions, 323 flow. Second operand 3 states and 1778 transitions. [2023-09-01 07:31:10,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 81 transitions, 483 flow [2023-09-01 07:31:10,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 453 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:10,301 INFO L231 Difference]: Finished difference. Result has 74 places, 81 transitions, 293 flow [2023-09-01 07:31:10,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=74, PETRI_TRANSITIONS=81} [2023-09-01 07:31:10,302 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2023-09-01 07:31:10,302 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 81 transitions, 293 flow [2023-09-01 07:31:10,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.3333333333334) internal successors, (1720), 3 states have internal predecessors, (1720), 0 states have call successors, (0), 0 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 07:31:10,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:10,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 07:31:10,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 07:31:10,303 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:10,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash 74862322, now seen corresponding path program 1 times [2023-09-01 07:31:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:10,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271331450] [2023-09-01 07:31:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:10,346 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 07:31:10,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:10,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271331450] [2023-09-01 07:31:10,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271331450] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:10,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:10,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:31:10,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216850014] [2023-09-01 07:31:10,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:10,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:10,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:10,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:10,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:10,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 1375 [2023-09-01 07:31:10,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 81 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 0 states have call successors, (0), 0 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 07:31:10,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:10,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 1375 [2023-09-01 07:31:10,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:13,572 INFO L130 PetriNetUnfolder]: 21541/30909 cut-off events. [2023-09-01 07:31:13,573 INFO L131 PetriNetUnfolder]: For 249/249 co-relation queries the response was YES. [2023-09-01 07:31:13,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63162 conditions, 30909 events. 21541/30909 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 188538 event pairs, 19125 based on Foata normal form. 0/16712 useless extension candidates. Maximal degree in co-relation 63153. Up to 30909 conditions per place. [2023-09-01 07:31:13,699 INFO L137 encePairwiseOnDemand]: 1373/1375 looper letters, 79 selfloop transitions, 1 changer transitions 0/80 dead transitions. [2023-09-01 07:31:13,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 451 flow [2023-09-01 07:31:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1771 transitions. [2023-09-01 07:31:13,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42933333333333334 [2023-09-01 07:31:13,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1771 transitions. [2023-09-01 07:31:13,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1771 transitions. [2023-09-01 07:31:13,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:13,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1771 transitions. [2023-09-01 07:31:13,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 590.3333333333334) internal successors, (1771), 3 states have internal predecessors, (1771), 0 states have call successors, (0), 0 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 07:31:13,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:13,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:13,713 INFO L175 Difference]: Start difference. First operand has 74 places, 81 transitions, 293 flow. Second operand 3 states and 1771 transitions. [2023-09-01 07:31:13,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 451 flow [2023-09-01 07:31:13,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 80 transitions, 450 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:13,716 INFO L231 Difference]: Finished difference. Result has 74 places, 80 transitions, 292 flow [2023-09-01 07:31:13,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=74, PETRI_TRANSITIONS=80} [2023-09-01 07:31:13,717 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2023-09-01 07:31:13,717 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 80 transitions, 292 flow [2023-09-01 07:31:13,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.3333333333334) internal successors, (1714), 3 states have internal predecessors, (1714), 0 states have call successors, (0), 0 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 07:31:13,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:13,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:31:13,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 07:31:13,718 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:13,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1974230638, now seen corresponding path program 1 times [2023-09-01 07:31:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:13,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368841991] [2023-09-01 07:31:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:13,767 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 07:31:13,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368841991] [2023-09-01 07:31:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368841991] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:31:13,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:31:13,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886386429] [2023-09-01 07:31:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:13,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:13,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:13,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:13,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:31:13,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1375 [2023-09-01 07:31:13,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 80 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 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 07:31:13,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:13,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1375 [2023-09-01 07:31:13,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:20,168 INFO L130 PetriNetUnfolder]: 43066/61754 cut-off events. [2023-09-01 07:31:20,168 INFO L131 PetriNetUnfolder]: For 489/489 co-relation queries the response was YES. [2023-09-01 07:31:20,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126123 conditions, 61754 events. 43066/61754 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 2201. Compared 412742 event pairs, 38250 based on Foata normal form. 0/33392 useless extension candidates. Maximal degree in co-relation 126114. Up to 30910 conditions per place. [2023-09-01 07:31:20,521 INFO L137 encePairwiseOnDemand]: 1363/1375 looper letters, 118 selfloop transitions, 6 changer transitions 0/124 dead transitions. [2023-09-01 07:31:20,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 124 transitions, 634 flow [2023-09-01 07:31:20,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:20,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:20,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1817 transitions. [2023-09-01 07:31:20,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4404848484848485 [2023-09-01 07:31:20,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1817 transitions. [2023-09-01 07:31:20,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1817 transitions. [2023-09-01 07:31:20,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:20,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1817 transitions. [2023-09-01 07:31:20,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 605.6666666666666) internal successors, (1817), 3 states have internal predecessors, (1817), 0 states have call successors, (0), 0 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 07:31:20,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:20,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:20,537 INFO L175 Difference]: Start difference. First operand has 74 places, 80 transitions, 292 flow. Second operand 3 states and 1817 transitions. [2023-09-01 07:31:20,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 124 transitions, 634 flow [2023-09-01 07:31:20,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 124 transitions, 633 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:20,540 INFO L231 Difference]: Finished difference. Result has 77 places, 85 transitions, 347 flow [2023-09-01 07:31:20,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=77, PETRI_TRANSITIONS=85} [2023-09-01 07:31:20,541 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -5 predicate places. [2023-09-01 07:31:20,541 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 85 transitions, 347 flow [2023-09-01 07:31:20,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.6666666666666) internal successors, (1712), 3 states have internal predecessors, (1712), 0 states have call successors, (0), 0 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 07:31:20,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:20,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:31:20,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 07:31:20,543 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:20,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:20,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1071601384, now seen corresponding path program 1 times [2023-09-01 07:31:20,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:20,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400247815] [2023-09-01 07:31:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:20,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:20,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400247815] [2023-09-01 07:31:20,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400247815] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:31:20,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390467307] [2023-09-01 07:31:20,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:20,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:20,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:31:20,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:31:20,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-01 07:31:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:20,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:31:20,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:31:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 07:31:20,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:31:20,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390467307] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:20,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:31:20,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-09-01 07:31:20,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884764997] [2023-09-01 07:31:20,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:20,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:20,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:20,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:20,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:31:20,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 1375 [2023-09-01 07:31:20,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 85 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 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 07:31:20,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:20,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 1375 [2023-09-01 07:31:20,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:27,873 INFO L130 PetriNetUnfolder]: 43065/61753 cut-off events. [2023-09-01 07:31:27,873 INFO L131 PetriNetUnfolder]: For 494/494 co-relation queries the response was YES. [2023-09-01 07:31:28,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126236 conditions, 61753 events. 43065/61753 cut-off events. For 494/494 co-relation queries the response was YES. Maximal size of possible extension queue 2201. Compared 412740 event pairs, 38250 based on Foata normal form. 1/33422 useless extension candidates. Maximal degree in co-relation 126226. Up to 61753 conditions per place. [2023-09-01 07:31:28,251 INFO L137 encePairwiseOnDemand]: 1372/1375 looper letters, 82 selfloop transitions, 2 changer transitions 0/84 dead transitions. [2023-09-01 07:31:28,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 84 transitions, 511 flow [2023-09-01 07:31:28,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1760 transitions. [2023-09-01 07:31:28,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4266666666666667 [2023-09-01 07:31:28,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1760 transitions. [2023-09-01 07:31:28,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1760 transitions. [2023-09-01 07:31:28,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:28,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1760 transitions. [2023-09-01 07:31:28,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 3 states have internal predecessors, (1760), 0 states have call successors, (0), 0 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 07:31:28,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:28,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:28,265 INFO L175 Difference]: Start difference. First operand has 77 places, 85 transitions, 347 flow. Second operand 3 states and 1760 transitions. [2023-09-01 07:31:28,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 84 transitions, 511 flow [2023-09-01 07:31:28,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 84 transitions, 499 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:31:28,269 INFO L231 Difference]: Finished difference. Result has 77 places, 84 transitions, 335 flow [2023-09-01 07:31:28,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=335, PETRI_PLACES=77, PETRI_TRANSITIONS=84} [2023-09-01 07:31:28,271 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -5 predicate places. [2023-09-01 07:31:28,271 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 84 transitions, 335 flow [2023-09-01 07:31:28,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 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 07:31:28,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:28,271 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-09-01 07:31:28,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-01 07:31:28,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-09-01 07:31:28,478 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:28,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1144777850, now seen corresponding path program 2 times [2023-09-01 07:31:28,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:28,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365510676] [2023-09-01 07:31:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:28,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:31:28,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:28,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365510676] [2023-09-01 07:31:28,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365510676] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:31:28,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621256436] [2023-09-01 07:31:28,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 07:31:28,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:28,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:31:28,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:31:28,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-01 07:31:28,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-01 07:31:28,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 07:31:28,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-01 07:31:28,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:31:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-01 07:31:28,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:31:28,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621256436] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:28,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:31:28,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-09-01 07:31:28,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004653564] [2023-09-01 07:31:28,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:28,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:31:28,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:28,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:31:28,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-09-01 07:31:28,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 572 out of 1375 [2023-09-01 07:31:28,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 84 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 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 07:31:28,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:28,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 572 of 1375 [2023-09-01 07:31:28,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:35,563 INFO L130 PetriNetUnfolder]: 43065/61750 cut-off events. [2023-09-01 07:31:35,563 INFO L131 PetriNetUnfolder]: For 489/489 co-relation queries the response was YES. [2023-09-01 07:31:35,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126190 conditions, 61750 events. 43065/61750 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 2201. Compared 412746 event pairs, 38250 based on Foata normal form. 3/33401 useless extension candidates. Maximal degree in co-relation 126180. Up to 61750 conditions per place. [2023-09-01 07:31:35,960 INFO L137 encePairwiseOnDemand]: 1371/1375 looper letters, 80 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2023-09-01 07:31:35,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 467 flow [2023-09-01 07:31:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:31:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:31:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2023-09-01 07:31:35,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43054545454545456 [2023-09-01 07:31:35,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2023-09-01 07:31:35,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2023-09-01 07:31:35,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:35,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2023-09-01 07:31:35,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 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 07:31:35,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:35,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:31:35,975 INFO L175 Difference]: Start difference. First operand has 77 places, 84 transitions, 335 flow. Second operand 3 states and 1776 transitions. [2023-09-01 07:31:35,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 467 flow [2023-09-01 07:31:35,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 81 transitions, 421 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-09-01 07:31:35,978 INFO L231 Difference]: Finished difference. Result has 71 places, 81 transitions, 261 flow [2023-09-01 07:31:35,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=71, PETRI_TRANSITIONS=81} [2023-09-01 07:31:35,979 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2023-09-01 07:31:35,979 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 81 transitions, 261 flow [2023-09-01 07:31:35,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 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 07:31:35,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:35,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:31:35,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-01 07:31:36,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:36,185 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:36,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1055193015, now seen corresponding path program 1 times [2023-09-01 07:31:36,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:36,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494396220] [2023-09-01 07:31:36,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 07:31:36,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494396220] [2023-09-01 07:31:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494396220] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:31:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199740428] [2023-09-01 07:31:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:36,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:36,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:31:36,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:31:36,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-01 07:31:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:36,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:31:36,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:31:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-01 07:31:36,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:31:36,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199740428] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:36,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:31:36,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2023-09-01 07:31:36,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358568882] [2023-09-01 07:31:36,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:36,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:31:36,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:36,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:31:36,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:31:36,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 1375 [2023-09-01 07:31:36,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 81 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 561.75) internal successors, (2247), 4 states have internal predecessors, (2247), 0 states have call successors, (0), 0 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 07:31:36,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:36,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 1375 [2023-09-01 07:31:36,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:43,199 INFO L130 PetriNetUnfolder]: 43064/61749 cut-off events. [2023-09-01 07:31:43,199 INFO L131 PetriNetUnfolder]: For 480/480 co-relation queries the response was YES. [2023-09-01 07:31:43,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126161 conditions, 61749 events. 43064/61749 cut-off events. For 480/480 co-relation queries the response was YES. Maximal size of possible extension queue 2201. Compared 412772 event pairs, 38250 based on Foata normal form. 0/33391 useless extension candidates. Maximal degree in co-relation 126155. Up to 61744 conditions per place. [2023-09-01 07:31:43,560 INFO L137 encePairwiseOnDemand]: 1370/1375 looper letters, 73 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2023-09-01 07:31:43,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 80 transitions, 417 flow [2023-09-01 07:31:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:31:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:31:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2300 transitions. [2023-09-01 07:31:43,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2023-09-01 07:31:43,565 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2300 transitions. [2023-09-01 07:31:43,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2300 transitions. [2023-09-01 07:31:43,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:43,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2300 transitions. [2023-09-01 07:31:43,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 575.0) internal successors, (2300), 4 states have internal predecessors, (2300), 0 states have call successors, (0), 0 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 07:31:43,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1375.0) internal successors, (6875), 5 states have internal predecessors, (6875), 0 states have call successors, (0), 0 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 07:31:43,575 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1375.0) internal successors, (6875), 5 states have internal predecessors, (6875), 0 states have call successors, (0), 0 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 07:31:43,576 INFO L175 Difference]: Start difference. First operand has 71 places, 81 transitions, 261 flow. Second operand 4 states and 2300 transitions. [2023-09-01 07:31:43,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 80 transitions, 417 flow [2023-09-01 07:31:43,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 80 transitions, 416 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:43,578 INFO L231 Difference]: Finished difference. Result has 73 places, 80 transitions, 270 flow [2023-09-01 07:31:43,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=73, PETRI_TRANSITIONS=80} [2023-09-01 07:31:43,578 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2023-09-01 07:31:43,579 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 80 transitions, 270 flow [2023-09-01 07:31:43,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 561.75) internal successors, (2247), 4 states have internal predecessors, (2247), 0 states have call successors, (0), 0 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 07:31:43,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:43,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:31:43,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-01 07:31:43,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:43,788 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:43,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:43,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1536929800, now seen corresponding path program 1 times [2023-09-01 07:31:43,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:43,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832393417] [2023-09-01 07:31:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:43,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-01 07:31:43,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:43,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832393417] [2023-09-01 07:31:43,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832393417] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:31:43,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666229213] [2023-09-01 07:31:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:43,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:43,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:31:43,868 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:31:43,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-01 07:31:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:43,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-09-01 07:31:43,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:31:44,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:31:44,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:31:44,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666229213] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:31:44,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:31:44,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2023-09-01 07:31:44,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909208923] [2023-09-01 07:31:44,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:31:44,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:31:44,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:31:44,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:31:44,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 1375 [2023-09-01 07:31:44,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 80 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 562.0) internal successors, (2248), 4 states have internal predecessors, (2248), 0 states have call successors, (0), 0 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 07:31:44,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:44,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 1375 [2023-09-01 07:31:44,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:31:49,590 INFO L130 PetriNetUnfolder]: 34453/49404 cut-off events. [2023-09-01 07:31:49,590 INFO L131 PetriNetUnfolder]: For 384/384 co-relation queries the response was YES. [2023-09-01 07:31:49,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100953 conditions, 49404 events. 34453/49404 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 1786. Compared 322680 event pairs, 30600 based on Foata normal form. 1/26721 useless extension candidates. Maximal degree in co-relation 100947. Up to 49399 conditions per place. [2023-09-01 07:31:49,843 INFO L137 encePairwiseOnDemand]: 1370/1375 looper letters, 73 selfloop transitions, 7 changer transitions 0/80 dead transitions. [2023-09-01 07:31:49,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 80 transitions, 430 flow [2023-09-01 07:31:49,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:31:49,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:31:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2300 transitions. [2023-09-01 07:31:49,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2023-09-01 07:31:49,847 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2300 transitions. [2023-09-01 07:31:49,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2300 transitions. [2023-09-01 07:31:49,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:31:49,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2300 transitions. [2023-09-01 07:31:49,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 575.0) internal successors, (2300), 4 states have internal predecessors, (2300), 0 states have call successors, (0), 0 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 07:31:49,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1375.0) internal successors, (6875), 5 states have internal predecessors, (6875), 0 states have call successors, (0), 0 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 07:31:49,854 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1375.0) internal successors, (6875), 5 states have internal predecessors, (6875), 0 states have call successors, (0), 0 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 07:31:49,854 INFO L175 Difference]: Start difference. First operand has 73 places, 80 transitions, 270 flow. Second operand 4 states and 2300 transitions. [2023-09-01 07:31:49,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 80 transitions, 430 flow [2023-09-01 07:31:49,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:31:49,856 INFO L231 Difference]: Finished difference. Result has 76 places, 80 transitions, 292 flow [2023-09-01 07:31:49,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=76, PETRI_TRANSITIONS=80} [2023-09-01 07:31:49,857 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -6 predicate places. [2023-09-01 07:31:49,857 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 80 transitions, 292 flow [2023-09-01 07:31:49,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 562.0) internal successors, (2248), 4 states have internal predecessors, (2248), 0 states have call successors, (0), 0 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 07:31:49,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:31:49,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:31:49,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-01 07:31:50,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-09-01 07:31:50,061 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:31:50,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:31:50,062 INFO L85 PathProgramCache]: Analyzing trace with hash 396618935, now seen corresponding path program 1 times [2023-09-01 07:31:50,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:31:50,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113622570] [2023-09-01 07:31:50,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:50,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:31:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:31:50,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:31:50,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113622570] [2023-09-01 07:31:50,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113622570] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:31:50,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339706294] [2023-09-01 07:31:50,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:31:50,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:31:50,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:31:50,149 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:31:50,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-01 07:31:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:31:50,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:31:50,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:31:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:31:50,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 07:31:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:31:50,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339706294] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 07:31:50,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 07:31:50,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-09-01 07:31:50,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958806403] [2023-09-01 07:31:50,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 07:31:50,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 07:31:50,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:31:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 07:31:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-09-01 07:31:50,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1375 [2023-09-01 07:31:50,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 80 transitions, 292 flow. Second operand has 7 states, 7 states have (on average 571.0) internal successors, (3997), 7 states have internal predecessors, (3997), 0 states have call successors, (0), 0 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 07:31:50,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:31:50,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1375 [2023-09-01 07:31:50,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:04,127 INFO L130 PetriNetUnfolder]: 86149/123468 cut-off events. [2023-09-01 07:32:04,127 INFO L131 PetriNetUnfolder]: For 967/967 co-relation queries the response was YES. [2023-09-01 07:32:04,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252239 conditions, 123468 events. 86149/123468 cut-off events. For 967/967 co-relation queries the response was YES. Maximal size of possible extension queue 4209. Compared 892226 event pairs, 76500 based on Foata normal form. 0/66768 useless extension candidates. Maximal degree in co-relation 252232. Up to 24717 conditions per place. [2023-09-01 07:32:04,883 INFO L137 encePairwiseOnDemand]: 1363/1375 looper letters, 227 selfloop transitions, 33 changer transitions 0/260 dead transitions. [2023-09-01 07:32:04,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 260 transitions, 1244 flow [2023-09-01 07:32:04,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 07:32:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 07:32:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4234 transitions. [2023-09-01 07:32:04,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398961038961039 [2023-09-01 07:32:04,890 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4234 transitions. [2023-09-01 07:32:04,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4234 transitions. [2023-09-01 07:32:04,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:04,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4234 transitions. [2023-09-01 07:32:04,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 604.8571428571429) internal successors, (4234), 7 states have internal predecessors, (4234), 0 states have call successors, (0), 0 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 07:32:04,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1375.0) internal successors, (11000), 8 states have internal predecessors, (11000), 0 states have call successors, (0), 0 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 07:32:04,906 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1375.0) internal successors, (11000), 8 states have internal predecessors, (11000), 0 states have call successors, (0), 0 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 07:32:04,906 INFO L175 Difference]: Start difference. First operand has 76 places, 80 transitions, 292 flow. Second operand 7 states and 4234 transitions. [2023-09-01 07:32:04,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 260 transitions, 1244 flow [2023-09-01 07:32:04,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 260 transitions, 1225 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 07:32:04,911 INFO L231 Difference]: Finished difference. Result has 82 places, 104 transitions, 492 flow [2023-09-01 07:32:04,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=492, PETRI_PLACES=82, PETRI_TRANSITIONS=104} [2023-09-01 07:32:04,912 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2023-09-01 07:32:04,912 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 104 transitions, 492 flow [2023-09-01 07:32:04,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 571.0) internal successors, (3997), 7 states have internal predecessors, (3997), 0 states have call successors, (0), 0 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 07:32:04,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:04,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:32:04,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-09-01 07:32:05,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-09-01 07:32:05,118 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:32:05,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 396618880, now seen corresponding path program 1 times [2023-09-01 07:32:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:05,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103100217] [2023-09-01 07:32:05,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:32:05,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:05,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103100217] [2023-09-01 07:32:05,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103100217] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:32:05,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978106798] [2023-09-01 07:32:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:05,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:32:05,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:32:05,183 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:32:05,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-09-01 07:32:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:05,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 07:32:05,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:32:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:32:05,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:32:05,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978106798] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:05,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:32:05,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-09-01 07:32:05,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279815244] [2023-09-01 07:32:05,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:05,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:32:05,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:32:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:32:05,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 1375 [2023-09-01 07:32:05,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 104 transitions, 492 flow. Second operand has 4 states, 4 states have (on average 571.25) internal successors, (2285), 4 states have internal predecessors, (2285), 0 states have call successors, (0), 0 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 07:32:05,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:05,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 1375 [2023-09-01 07:32:05,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:18,973 INFO L130 PetriNetUnfolder]: 86113/123420 cut-off events. [2023-09-01 07:32:18,974 INFO L131 PetriNetUnfolder]: For 990/990 co-relation queries the response was YES. [2023-09-01 07:32:19,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252279 conditions, 123420 events. 86113/123420 cut-off events. For 990/990 co-relation queries the response was YES. Maximal size of possible extension queue 4234. Compared 894158 event pairs, 76500 based on Foata normal form. 8/66812 useless extension candidates. Maximal degree in co-relation 252269. Up to 98696 conditions per place. [2023-09-01 07:32:19,736 INFO L137 encePairwiseOnDemand]: 1366/1375 looper letters, 119 selfloop transitions, 12 changer transitions 0/131 dead transitions. [2023-09-01 07:32:19,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 131 transitions, 757 flow [2023-09-01 07:32:19,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:32:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:32:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2377 transitions. [2023-09-01 07:32:19,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43218181818181817 [2023-09-01 07:32:19,740 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2377 transitions. [2023-09-01 07:32:19,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2377 transitions. [2023-09-01 07:32:19,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:19,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2377 transitions. [2023-09-01 07:32:19,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 594.25) internal successors, (2377), 4 states have internal predecessors, (2377), 0 states have call successors, (0), 0 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 07:32:19,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1375.0) internal successors, (6875), 5 states have internal predecessors, (6875), 0 states have call successors, (0), 0 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 07:32:19,747 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1375.0) internal successors, (6875), 5 states have internal predecessors, (6875), 0 states have call successors, (0), 0 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 07:32:19,747 INFO L175 Difference]: Start difference. First operand has 82 places, 104 transitions, 492 flow. Second operand 4 states and 2377 transitions. [2023-09-01 07:32:19,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 131 transitions, 757 flow [2023-09-01 07:32:19,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 131 transitions, 727 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-09-01 07:32:19,751 INFO L231 Difference]: Finished difference. Result has 80 places, 92 transitions, 405 flow [2023-09-01 07:32:19,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=405, PETRI_PLACES=80, PETRI_TRANSITIONS=92} [2023-09-01 07:32:19,752 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2023-09-01 07:32:19,752 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 92 transitions, 405 flow [2023-09-01 07:32:19,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 571.25) internal successors, (2285), 4 states have internal predecessors, (2285), 0 states have call successors, (0), 0 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 07:32:19,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:19,753 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:32:19,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-09-01 07:32:19,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:32:19,961 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:32:19,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash 224174474, now seen corresponding path program 2 times [2023-09-01 07:32:19,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:19,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121975336] [2023-09-01 07:32:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:19,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-09-01 07:32:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121975336] [2023-09-01 07:32:20,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121975336] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 07:32:20,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158565114] [2023-09-01 07:32:20,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 07:32:20,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 07:32:20,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:32:20,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 07:32:20,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-09-01 07:32:20,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-01 07:32:20,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 07:32:20,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-01 07:32:20,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 07:32:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-09-01 07:32:20,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 07:32:20,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158565114] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:20,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 07:32:20,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2023-09-01 07:32:20,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019122573] [2023-09-01 07:32:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:20,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:32:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:32:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 07:32:20,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 572 out of 1375 [2023-09-01 07:32:20,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 92 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 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 07:32:20,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:20,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 572 of 1375 [2023-09-01 07:32:20,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:32:33,698 INFO L130 PetriNetUnfolder]: 86113/123408 cut-off events. [2023-09-01 07:32:33,698 INFO L131 PetriNetUnfolder]: For 1049/1049 co-relation queries the response was YES. [2023-09-01 07:32:34,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252184 conditions, 123408 events. 86113/123408 cut-off events. For 1049/1049 co-relation queries the response was YES. Maximal size of possible extension queue 4255. Compared 894119 event pairs, 76500 based on Foata normal form. 12/66820 useless extension candidates. Maximal degree in co-relation 252173. Up to 123384 conditions per place. [2023-09-01 07:32:34,505 INFO L137 encePairwiseOnDemand]: 1371/1375 looper letters, 88 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2023-09-01 07:32:34,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 89 transitions, 553 flow [2023-09-01 07:32:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:32:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:32:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1770 transitions. [2023-09-01 07:32:34,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290909090909091 [2023-09-01 07:32:34,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1770 transitions. [2023-09-01 07:32:34,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1770 transitions. [2023-09-01 07:32:34,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:32:34,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1770 transitions. [2023-09-01 07:32:34,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 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 07:32:34,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:32:34,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1375.0) internal successors, (5500), 4 states have internal predecessors, (5500), 0 states have call successors, (0), 0 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 07:32:34,512 INFO L175 Difference]: Start difference. First operand has 80 places, 92 transitions, 405 flow. Second operand 3 states and 1770 transitions. [2023-09-01 07:32:34,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 89 transitions, 553 flow [2023-09-01 07:32:34,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 498 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-09-01 07:32:34,517 INFO L231 Difference]: Finished difference. Result has 73 places, 89 transitions, 322 flow [2023-09-01 07:32:34,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1375, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=73, PETRI_TRANSITIONS=89} [2023-09-01 07:32:34,518 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2023-09-01 07:32:34,518 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 89 transitions, 322 flow [2023-09-01 07:32:34,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 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 07:32:34,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:32:34,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:32:34,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-09-01 07:32:34,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-09-01 07:32:34,725 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-09-01 07:32:34,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:32:34,725 INFO L85 PathProgramCache]: Analyzing trace with hash 719084549, now seen corresponding path program 1 times [2023-09-01 07:32:34,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:32:34,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463898787] [2023-09-01 07:32:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:32:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:32:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:32:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-01 07:32:34,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:32:34,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463898787] [2023-09-01 07:32:34,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463898787] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:32:34,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:32:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:32:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931032695] [2023-09-01 07:32:34,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:32:34,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:32:34,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:32:34,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:32:34,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:32:34,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 1375 [2023-09-01 07:32:34,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 89 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 564.0) internal successors, (2256), 4 states have internal predecessors, (2256), 0 states have call successors, (0), 0 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 07:32:34,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:32:34,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 1375 [2023-09-01 07:32:34,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand