./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-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-match-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 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa --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 07:26:12,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:26:12,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:26:12,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:26:12,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:26:12,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:26:12,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:26:12,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:26:12,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:26:12,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:26:12,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:26:12,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:26:12,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:26:12,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:26:12,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:26:12,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:26:12,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:26:12,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:26:12,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:26:12,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:26:12,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:26:12,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:26:12,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:26:12,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:26:12,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:26:12,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:26:12,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:26:12,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:26:12,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:26:12,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:26:12,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:26:12,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:26:12,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:26:12,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:26:12,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:26:12,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:26:12,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:26:12,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:26:12,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:26:12,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:26:12,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:26:12,173 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:26:12,199 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:26:12,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:26:12,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:26:12,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:26:12,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:26:12,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:26:12,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:26:12,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:26:12,203 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:26:12,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:26:12,204 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:26:12,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:26:12,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:26:12,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:26:12,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:26:12,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:26:12,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:26:12,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:26:12,206 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:26:12,207 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:26:12,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:26:12,211 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:26:12,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:26:12,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:26:12,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:26:12,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:26:12,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:26:12,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:26:12,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:26:12,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:26:12,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:26:12,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:26:12,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:26:12,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:26:12,215 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:26:12,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:26:12,215 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:26:12,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:26:12,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:26:12,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:26:12,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:26:12,530 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:26:12,530 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:26:12,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-09-01 07:26:13,657 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:26:13,900 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:26:13,901 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-09-01 07:26:13,906 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65cce459/295d0be4ec25462083e210179788ab3e/FLAGa08975e74 [2023-09-01 07:26:13,930 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65cce459/295d0be4ec25462083e210179788ab3e [2023-09-01 07:26:13,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:26:13,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:26:13,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:26:13,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:26:13,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:26:13,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:26:13" (1/1) ... [2023-09-01 07:26:13,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1794a9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:13, skipping insertion in model container [2023-09-01 07:26:13,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:26:13" (1/1) ... [2023-09-01 07:26:13,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:26:13,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:26:14,153 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-match-subst.wvr.c[3017,3030] [2023-09-01 07:26:14,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:26:14,175 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:26:14,213 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-match-subst.wvr.c[3017,3030] [2023-09-01 07:26:14,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:26:14,229 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:26:14,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14 WrapperNode [2023-09-01 07:26:14,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:26:14,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:26:14,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:26:14,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:26:14,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,342 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 299 [2023-09-01 07:26:14,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:26:14,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:26:14,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:26:14,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:26:14,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:26:14,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:26:14,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:26:14,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:26:14,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (1/1) ... [2023-09-01 07:26:14,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:26:14,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:26:14,450 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 07:26:14,461 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 07:26:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:26:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:26:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:26:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:26:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:26:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-01 07:26:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-01 07:26:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:26:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:26:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:26:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:26:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:26:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:26:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:26:14,490 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 07:26:14,625 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:26:14,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:26:15,185 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:26:15,198 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:26:15,204 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 07:26:15,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:26:15 BoogieIcfgContainer [2023-09-01 07:26:15,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:26:15,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:26:15,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:26:15,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:26:15,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:26:13" (1/3) ... [2023-09-01 07:26:15,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7204b78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:26:15, skipping insertion in model container [2023-09-01 07:26:15,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:26:14" (2/3) ... [2023-09-01 07:26:15,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7204b78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:26:15, skipping insertion in model container [2023-09-01 07:26:15,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:26:15" (3/3) ... [2023-09-01 07:26:15,216 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2023-09-01 07:26:15,222 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:26:15,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:26:15,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-09-01 07:26:15,231 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:26:15,371 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-01 07:26:15,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 385 transitions, 794 flow [2023-09-01 07:26:15,624 INFO L130 PetriNetUnfolder]: 26/382 cut-off events. [2023-09-01 07:26:15,625 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 07:26:15,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 382 events. 26/382 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 891 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-09-01 07:26:15,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 385 transitions, 794 flow [2023-09-01 07:26:15,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 344 places, 358 transitions, 731 flow [2023-09-01 07:26:15,647 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:26:15,660 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 358 transitions, 731 flow [2023-09-01 07:26:15,664 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 358 transitions, 731 flow [2023-09-01 07:26:15,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 344 places, 358 transitions, 731 flow [2023-09-01 07:26:15,735 INFO L130 PetriNetUnfolder]: 24/358 cut-off events. [2023-09-01 07:26:15,735 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:26:15,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 358 events. 24/358 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 886 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-09-01 07:26:15,766 INFO L119 LiptonReduction]: Number of co-enabled transitions 56238 [2023-09-01 07:26:49,993 INFO L134 LiptonReduction]: Checked pairs total: 55424 [2023-09-01 07:26:49,994 INFO L136 LiptonReduction]: Total number of compositions: 511 [2023-09-01 07:26:50,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:26:50,013 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;@4fa29b54, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:26:50,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-09-01 07:26:50,017 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-09-01 07:26:50,017 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:26:50,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:50,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:50,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:50,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1649793, now seen corresponding path program 1 times [2023-09-01 07:26:50,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:50,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660505209] [2023-09-01 07:26:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:50,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:50,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:50,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:50,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660505209] [2023-09-01 07:26:50,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660505209] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:50,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:50,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:50,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742955728] [2023-09-01 07:26:50,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:50,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-01 07:26:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-01 07:26:50,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-01 07:26:50,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 896 [2023-09-01 07:26:50,284 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 365.5) internal successors, (731), 2 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:50,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:50,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 896 [2023-09-01 07:26:50,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:52,321 INFO L130 PetriNetUnfolder]: 5157/7598 cut-off events. [2023-09-01 07:26:52,321 INFO L131 PetriNetUnfolder]: For 299/299 co-relation queries the response was YES. [2023-09-01 07:26:52,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15533 conditions, 7598 events. 5157/7598 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 45310 event pairs, 5157 based on Foata normal form. 0/2126 useless extension candidates. Maximal degree in co-relation 14216. Up to 7599 conditions per place. [2023-09-01 07:26:52,368 INFO L137 encePairwiseOnDemand]: 884/896 looper letters, 38 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2023-09-01 07:26:52,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 167 flow [2023-09-01 07:26:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-01 07:26:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-09-01 07:26:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 778 transitions. [2023-09-01 07:26:52,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4341517857142857 [2023-09-01 07:26:52,388 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 778 transitions. [2023-09-01 07:26:52,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 778 transitions. [2023-09-01 07:26:52,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:52,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 778 transitions. [2023-09-01 07:26:52,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 389.0) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:52,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 896.0) internal successors, (2688), 3 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:52,407 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 896.0) internal successors, (2688), 3 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:52,409 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 2 states and 778 transitions. [2023-09-01 07:26:52,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 167 flow [2023-09-01 07:26:52,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 07:26:52,425 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 82 flow [2023-09-01 07:26:52,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-09-01 07:26:52,430 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-09-01 07:26:52,430 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 82 flow [2023-09-01 07:26:52,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 365.5) internal successors, (731), 2 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:52,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:52,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:52,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:26:52,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:52,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:52,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1649913, now seen corresponding path program 1 times [2023-09-01 07:26:52,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:52,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459479081] [2023-09-01 07:26:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:52,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:52,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:52,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:52,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459479081] [2023-09-01 07:26:52,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459479081] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:52,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:52,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:52,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561599909] [2023-09-01 07:26:52,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:52,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:52,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:52,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:52,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:52,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:52,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:52,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:52,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:52,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:54,038 INFO L130 PetriNetUnfolder]: 4205/6222 cut-off events. [2023-09-01 07:26:54,039 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-09-01 07:26:54,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12637 conditions, 6222 events. 4205/6222 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 810. Compared 36280 event pairs, 4205 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 12634. Up to 6222 conditions per place. [2023-09-01 07:26:54,076 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-09-01 07:26:54,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 150 flow [2023-09-01 07:26:54,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1124 transitions. [2023-09-01 07:26:54,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4181547619047619 [2023-09-01 07:26:54,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1124 transitions. [2023-09-01 07:26:54,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1124 transitions. [2023-09-01 07:26:54,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:54,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1124 transitions. [2023-09-01 07:26:54,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:54,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:54,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:54,091 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 82 flow. Second operand 3 states and 1124 transitions. [2023-09-01 07:26:54,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 150 flow [2023-09-01 07:26:54,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 07:26:54,092 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 80 flow [2023-09-01 07:26:54,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-09-01 07:26:54,093 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-09-01 07:26:54,094 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 80 flow [2023-09-01 07:26:54,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:54,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:54,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:54,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:26:54,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:54,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:54,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1649935, now seen corresponding path program 1 times [2023-09-01 07:26:54,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:54,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774076390] [2023-09-01 07:26:54,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:54,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:54,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774076390] [2023-09-01 07:26:54,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774076390] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:54,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:54,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:54,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729409895] [2023-09-01 07:26:54,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:54,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:54,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:54,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:54,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:54,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:54,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:54,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:54,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:54,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:55,116 INFO L130 PetriNetUnfolder]: 3349/4982 cut-off events. [2023-09-01 07:26:55,116 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-09-01 07:26:55,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10138 conditions, 4982 events. 3349/4982 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 28083 event pairs, 3349 based on Foata normal form. 0/1518 useless extension candidates. Maximal degree in co-relation 10134. Up to 4982 conditions per place. [2023-09-01 07:26:55,135 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-09-01 07:26:55,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 144 flow [2023-09-01 07:26:55,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:55,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2023-09-01 07:26:55,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4174107142857143 [2023-09-01 07:26:55,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1122 transitions. [2023-09-01 07:26:55,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1122 transitions. [2023-09-01 07:26:55,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:55,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1122 transitions. [2023-09-01 07:26:55,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,149 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 80 flow. Second operand 3 states and 1122 transitions. [2023-09-01 07:26:55,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 144 flow [2023-09-01 07:26:55,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:55,150 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 77 flow [2023-09-01 07:26:55,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-09-01 07:26:55,151 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-09-01 07:26:55,151 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 77 flow [2023-09-01 07:26:55,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:55,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:55,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:26:55,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:55,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1649936, now seen corresponding path program 1 times [2023-09-01 07:26:55,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976676548] [2023-09-01 07:26:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:55,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:55,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:55,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:55,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976676548] [2023-09-01 07:26:55,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976676548] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:55,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:55,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:55,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377361762] [2023-09-01 07:26:55,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:55,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:55,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:55,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:55,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:55,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:55,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:55,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:55,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:55,882 INFO L130 PetriNetUnfolder]: 2589/3878 cut-off events. [2023-09-01 07:26:55,883 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2023-09-01 07:26:55,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7910 conditions, 3878 events. 2589/3878 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 21129 event pairs, 2589 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 7906. Up to 3878 conditions per place. [2023-09-01 07:26:55,896 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-09-01 07:26:55,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 137 flow [2023-09-01 07:26:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:55,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1120 transitions. [2023-09-01 07:26:55,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-09-01 07:26:55,901 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1120 transitions. [2023-09-01 07:26:55,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1120 transitions. [2023-09-01 07:26:55,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:55,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1120 transitions. [2023-09-01 07:26:55,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,911 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 77 flow. Second operand 3 states and 1120 transitions. [2023-09-01 07:26:55,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 137 flow [2023-09-01 07:26:55,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:55,912 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 74 flow [2023-09-01 07:26:55,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-09-01 07:26:55,913 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-09-01 07:26:55,913 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 74 flow [2023-09-01 07:26:55,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:55,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:55,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:26:55,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:55,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:55,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1649794, now seen corresponding path program 1 times [2023-09-01 07:26:55,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:55,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777640401] [2023-09-01 07:26:55,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:55,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:55,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:55,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777640401] [2023-09-01 07:26:55,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777640401] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:55,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:55,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:55,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719397654] [2023-09-01 07:26:55,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:55,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:55,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:55,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:55,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:55,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:55,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:55,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:55,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:55,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:56,570 INFO L130 PetriNetUnfolder]: 2001/3018 cut-off events. [2023-09-01 07:26:56,570 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2023-09-01 07:26:56,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6158 conditions, 3018 events. 2001/3018 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 15875 event pairs, 2001 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 6154. Up to 3018 conditions per place. [2023-09-01 07:26:56,582 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-09-01 07:26:56,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 130 flow [2023-09-01 07:26:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:56,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1118 transitions. [2023-09-01 07:26:56,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41592261904761907 [2023-09-01 07:26:56,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1118 transitions. [2023-09-01 07:26:56,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1118 transitions. [2023-09-01 07:26:56,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:56,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1118 transitions. [2023-09-01 07:26:56,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:56,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:56,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:56,597 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 74 flow. Second operand 3 states and 1118 transitions. [2023-09-01 07:26:56,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 130 flow [2023-09-01 07:26:56,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:56,598 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 71 flow [2023-09-01 07:26:56,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-09-01 07:26:56,599 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2023-09-01 07:26:56,599 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 71 flow [2023-09-01 07:26:56,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:56,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:56,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:56,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:26:56,601 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:56,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1649937, now seen corresponding path program 1 times [2023-09-01 07:26:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:56,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538389330] [2023-09-01 07:26:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:56,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:56,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538389330] [2023-09-01 07:26:56,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538389330] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:56,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:56,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912557408] [2023-09-01 07:26:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:56,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:56,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:56,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:56,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:56,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:56,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:56,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:56,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:57,191 INFO L130 PetriNetUnfolder]: 1449/2210 cut-off events. [2023-09-01 07:26:57,192 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-09-01 07:26:57,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4524 conditions, 2210 events. 1449/2210 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 11072 event pairs, 1449 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 4520. Up to 2210 conditions per place. [2023-09-01 07:26:57,199 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-09-01 07:26:57,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 123 flow [2023-09-01 07:26:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1116 transitions. [2023-09-01 07:26:57,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41517857142857145 [2023-09-01 07:26:57,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1116 transitions. [2023-09-01 07:26:57,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1116 transitions. [2023-09-01 07:26:57,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:57,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1116 transitions. [2023-09-01 07:26:57,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 372.0) internal successors, (1116), 3 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,218 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 71 flow. Second operand 3 states and 1116 transitions. [2023-09-01 07:26:57,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 123 flow [2023-09-01 07:26:57,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:57,219 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 68 flow [2023-09-01 07:26:57,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-09-01 07:26:57,222 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -20 predicate places. [2023-09-01 07:26:57,222 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 68 flow [2023-09-01 07:26:57,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:57,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:57,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:26:57,223 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:57,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:57,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1649900, now seen corresponding path program 1 times [2023-09-01 07:26:57,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:57,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216450862] [2023-09-01 07:26:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:57,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:57,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216450862] [2023-09-01 07:26:57,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216450862] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:57,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:57,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:57,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015041802] [2023-09-01 07:26:57,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:57,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:57,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:57,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:57,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:57,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:57,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:57,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:57,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:57,700 INFO L130 PetriNetUnfolder]: 1037/1602 cut-off events. [2023-09-01 07:26:57,700 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-09-01 07:26:57,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3282 conditions, 1602 events. 1037/1602 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7642 event pairs, 1037 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 3278. Up to 1602 conditions per place. [2023-09-01 07:26:57,704 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-09-01 07:26:57,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 116 flow [2023-09-01 07:26:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:57,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2023-09-01 07:26:57,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41443452380952384 [2023-09-01 07:26:57,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2023-09-01 07:26:57,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2023-09-01 07:26:57,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:57,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2023-09-01 07:26:57,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,715 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 68 flow. Second operand 3 states and 1114 transitions. [2023-09-01 07:26:57,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 116 flow [2023-09-01 07:26:57,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:57,716 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 65 flow [2023-09-01 07:26:57,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-09-01 07:26:57,717 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -21 predicate places. [2023-09-01 07:26:57,717 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 65 flow [2023-09-01 07:26:57,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:57,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:57,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:26:57,718 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:57,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:57,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1649903, now seen corresponding path program 1 times [2023-09-01 07:26:57,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:57,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237444639] [2023-09-01 07:26:57,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:57,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:57,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237444639] [2023-09-01 07:26:57,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237444639] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:57,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:57,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:57,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633149775] [2023-09-01 07:26:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:57,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:57,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:57,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:57,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:57,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:57,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:57,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:57,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:58,033 INFO L130 PetriNetUnfolder]: 689/1086 cut-off events. [2023-09-01 07:26:58,034 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-09-01 07:26:58,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1086 events. 689/1086 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 4885 event pairs, 689 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 2224. Up to 1086 conditions per place. [2023-09-01 07:26:58,038 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-09-01 07:26:58,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 24 transitions, 109 flow [2023-09-01 07:26:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2023-09-01 07:26:58,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41369047619047616 [2023-09-01 07:26:58,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2023-09-01 07:26:58,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2023-09-01 07:26:58,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:58,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2023-09-01 07:26:58,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,050 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 65 flow. Second operand 3 states and 1112 transitions. [2023-09-01 07:26:58,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 24 transitions, 109 flow [2023-09-01 07:26:58,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:58,051 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 62 flow [2023-09-01 07:26:58,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-09-01 07:26:58,052 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2023-09-01 07:26:58,052 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 62 flow [2023-09-01 07:26:58,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:58,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:26:58,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 07:26:58,053 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:58,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:58,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1649902, now seen corresponding path program 1 times [2023-09-01 07:26:58,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:58,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297758998] [2023-09-01 07:26:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:58,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:58,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:58,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297758998] [2023-09-01 07:26:58,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297758998] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:58,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:58,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:58,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494453425] [2023-09-01 07:26:58,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:58,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:58,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:58,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:58,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:58,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:58,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:58,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:58,291 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2023-09-01 07:26:58,291 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-09-01 07:26:58,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 662 events. 405/662 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2726 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1358. Up to 662 conditions per place. [2023-09-01 07:26:58,294 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-09-01 07:26:58,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 22 transitions, 102 flow [2023-09-01 07:26:58,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2023-09-01 07:26:58,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41294642857142855 [2023-09-01 07:26:58,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2023-09-01 07:26:58,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2023-09-01 07:26:58,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:58,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2023-09-01 07:26:58,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,305 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 62 flow. Second operand 3 states and 1110 transitions. [2023-09-01 07:26:58,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 22 transitions, 102 flow [2023-09-01 07:26:58,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 22 transitions, 101 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:58,306 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 59 flow [2023-09-01 07:26:58,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2023-09-01 07:26:58,307 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2023-09-01 07:26:58,307 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 59 flow [2023-09-01 07:26:58,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:58,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:26:58,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 07:26:58,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:58,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416425, now seen corresponding path program 1 times [2023-09-01 07:26:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:58,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516014254] [2023-09-01 07:26:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:58,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:58,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516014254] [2023-09-01 07:26:58,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516014254] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:58,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:58,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:58,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738799997] [2023-09-01 07:26:58,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:58,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:58,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:58,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:58,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:58,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:58,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:58,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:58,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:58,493 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2023-09-01 07:26:58,493 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-09-01 07:26:58,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 462 events. 277/462 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1756 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 955. Up to 462 conditions per place. [2023-09-01 07:26:58,495 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-09-01 07:26:58,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 20 transitions, 95 flow [2023-09-01 07:26:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:58,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1108 transitions. [2023-09-01 07:26:58,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41220238095238093 [2023-09-01 07:26:58,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1108 transitions. [2023-09-01 07:26:58,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1108 transitions. [2023-09-01 07:26:58,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:58,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1108 transitions. [2023-09-01 07:26:58,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,507 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 59 flow. Second operand 3 states and 1108 transitions. [2023-09-01 07:26:58,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 20 transitions, 95 flow [2023-09-01 07:26:58,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 20 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:58,509 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 56 flow [2023-09-01 07:26:58,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-09-01 07:26:58,510 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -24 predicate places. [2023-09-01 07:26:58,511 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 56 flow [2023-09-01 07:26:58,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:58,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:26:58,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 07:26:58,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:58,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416426, now seen corresponding path program 1 times [2023-09-01 07:26:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:58,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938035983] [2023-09-01 07:26:58,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:58,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:58,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:58,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938035983] [2023-09-01 07:26:58,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938035983] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:58,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:58,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796840946] [2023-09-01 07:26:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:58,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:58,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:58,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:58,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:58,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:58,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:58,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:58,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:58,740 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2023-09-01 07:26:58,740 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-09-01 07:26:58,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1002 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 624. Up to 298 conditions per place. [2023-09-01 07:26:58,741 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-09-01 07:26:58,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 88 flow [2023-09-01 07:26:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2023-09-01 07:26:58,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4114583333333333 [2023-09-01 07:26:58,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1106 transitions. [2023-09-01 07:26:58,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1106 transitions. [2023-09-01 07:26:58,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:58,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1106 transitions. [2023-09-01 07:26:58,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,751 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 56 flow. Second operand 3 states and 1106 transitions. [2023-09-01 07:26:58,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 88 flow [2023-09-01 07:26:58,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 18 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:58,752 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 53 flow [2023-09-01 07:26:58,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2023-09-01 07:26:58,753 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -25 predicate places. [2023-09-01 07:26:58,753 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 53 flow [2023-09-01 07:26:58,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:58,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:26:58,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 07:26:58,754 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:58,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:58,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416428, now seen corresponding path program 1 times [2023-09-01 07:26:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:58,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834731387] [2023-09-01 07:26:58,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:58,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:58,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:58,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834731387] [2023-09-01 07:26:58,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834731387] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:58,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:58,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:58,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864910790] [2023-09-01 07:26:58,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:58,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:58,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:58,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:58,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:58,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:58,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:58,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:58,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:58,898 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2023-09-01 07:26:58,898 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 07:26:58,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 469 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 365. Up to 170 conditions per place. [2023-09-01 07:26:58,899 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-09-01 07:26:58,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 16 transitions, 81 flow [2023-09-01 07:26:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:58,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1104 transitions. [2023-09-01 07:26:58,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2023-09-01 07:26:58,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1104 transitions. [2023-09-01 07:26:58,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1104 transitions. [2023-09-01 07:26:58,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:58,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1104 transitions. [2023-09-01 07:26:58,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,909 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 53 flow. Second operand 3 states and 1104 transitions. [2023-09-01 07:26:58,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 16 transitions, 81 flow [2023-09-01 07:26:58,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:58,909 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 50 flow [2023-09-01 07:26:58,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-09-01 07:26:58,910 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -26 predicate places. [2023-09-01 07:26:58,910 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 50 flow [2023-09-01 07:26:58,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:26:58,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 07:26:58,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 07:26:58,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-09-01 07:26:58,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:26:58,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416412, now seen corresponding path program 1 times [2023-09-01 07:26:58,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:26:58,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003899779] [2023-09-01 07:26:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:26:58,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:26:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:26:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:26:58,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:26:58,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003899779] [2023-09-01 07:26:58,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003899779] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:26:58,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:26:58,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:26:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753497847] [2023-09-01 07:26:58,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:26:58,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:26:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:26:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:26:58,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:26:58,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-09-01 07:26:58,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:58,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:26:58,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-09-01 07:26:58,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:26:58,997 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-09-01 07:26:58,997 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:26:59,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 178. Up to 78 conditions per place. [2023-09-01 07:26:59,000 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-09-01 07:26:59,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 14 transitions, 74 flow [2023-09-01 07:26:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:26:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:26:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1102 transitions. [2023-09-01 07:26:59,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4099702380952381 [2023-09-01 07:26:59,003 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1102 transitions. [2023-09-01 07:26:59,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1102 transitions. [2023-09-01 07:26:59,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:26:59,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1102 transitions. [2023-09-01 07:26:59,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:59,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:59,009 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:59,009 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 50 flow. Second operand 3 states and 1102 transitions. [2023-09-01 07:26:59,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 14 transitions, 74 flow [2023-09-01 07:26:59,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 14 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:26:59,010 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-09-01 07:26:59,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-09-01 07:26:59,011 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2023-09-01 07:26:59,011 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-09-01 07:26:59,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:26:59,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2023-09-01 07:26:59,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2023-09-01 07:26:59,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2023-09-01 07:26:59,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2023-09-01 07:26:59,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2023-09-01 07:26:59,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2023-09-01 07:26:59,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2023-09-01 07:26:59,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2023-09-01 07:26:59,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2023-09-01 07:26:59,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2023-09-01 07:26:59,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2023-09-01 07:26:59,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2023-09-01 07:26:59,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2023-09-01 07:26:59,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2023-09-01 07:26:59,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2023-09-01 07:26:59,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2023-09-01 07:26:59,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2023-09-01 07:26:59,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2023-09-01 07:26:59,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2023-09-01 07:26:59,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2023-09-01 07:26:59,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2023-09-01 07:26:59,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2023-09-01 07:26:59,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2023-09-01 07:26:59,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2023-09-01 07:26:59,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2023-09-01 07:26:59,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2023-09-01 07:26:59,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2023-09-01 07:26:59,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2023-09-01 07:26:59,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2023-09-01 07:26:59,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2023-09-01 07:26:59,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2023-09-01 07:26:59,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2023-09-01 07:26:59,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2023-09-01 07:26:59,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2023-09-01 07:26:59,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2023-09-01 07:26:59,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2023-09-01 07:26:59,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2023-09-01 07:26:59,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2023-09-01 07:26:59,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2023-09-01 07:26:59,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 07:26:59,025 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:26:59,030 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:26:59,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:26:59,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:26:59 BasicIcfg [2023-09-01 07:26:59,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:26:59,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:26:59,034 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:26:59,034 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:26:59,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:26:15" (3/4) ... [2023-09-01 07:26:59,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 07:26:59,040 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-09-01 07:26:59,041 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-09-01 07:26:59,041 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-09-01 07:26:59,044 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-09-01 07:26:59,045 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 07:26:59,045 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 07:26:59,045 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 07:26:59,073 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:26:59,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:26:59,074 INFO L158 Benchmark]: Toolchain (without parser) took 45138.68ms. Allocated memory was 65.0MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 42.8MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 145.4MB. Max. memory is 16.1GB. [2023-09-01 07:26:59,074 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 65.0MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:26:59,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.69ms. Allocated memory is still 65.0MB. Free memory was 42.7MB in the beginning and 31.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 07:26:59,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.20ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 31.0MB in the beginning and 59.1MB in the end (delta: -28.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-09-01 07:26:59,075 INFO L158 Benchmark]: Boogie Preprocessor took 68.06ms. Allocated memory is still 79.7MB. Free memory was 59.1MB in the beginning and 57.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:26:59,076 INFO L158 Benchmark]: RCFGBuilder took 794.44ms. Allocated memory is still 79.7MB. Free memory was 57.0MB in the beginning and 55.9MB in the end (delta: 1.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-09-01 07:26:59,076 INFO L158 Benchmark]: TraceAbstraction took 43822.76ms. Allocated memory was 79.7MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 55.1MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 137.8MB. Max. memory is 16.1GB. [2023-09-01 07:26:59,076 INFO L158 Benchmark]: Witness Printer took 40.24ms. Allocated memory is still 2.5GB. Free memory was 2.3GB in the beginning and 2.3GB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:26:59,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 65.0MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.69ms. Allocated memory is still 65.0MB. Free memory was 42.7MB in the beginning and 31.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.20ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 31.0MB in the beginning and 59.1MB in the end (delta: -28.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.06ms. Allocated memory is still 79.7MB. Free memory was 59.1MB in the beginning and 57.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 794.44ms. Allocated memory is still 79.7MB. Free memory was 57.0MB in the beginning and 55.9MB in the end (delta: 1.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * TraceAbstraction took 43822.76ms. Allocated memory was 79.7MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 55.1MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 137.8MB. Max. memory is 16.1GB. * Witness Printer took 40.24ms. Allocated memory is still 2.5GB. Free memory was 2.3GB in the beginning and 2.3GB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.3s, 344 PlacesBefore, 60 PlacesAfterwards, 358 TransitionsBefore, 50 TransitionsAfterwards, 56238 CoEnabledTransitionPairs, 10 FixpointIterations, 62 TrivialSequentialCompositions, 360 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 65 ConcurrentYvCompositions, 24 ChoiceCompositions, 511 TotalNumberOfCompositions, 55424 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55424, independent: 55424, independent conditional: 0, independent unconditional: 55424, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32374, independent: 32374, independent conditional: 0, independent unconditional: 32374, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55424, independent: 23050, independent conditional: 0, independent unconditional: 23050, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 32374, unknown conditional: 0, unknown unconditional: 32374] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 159, Positive conditional cache size: 0, Positive unconditional cache size: 159, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 615 locations, 75 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 43.6s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 34.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 22 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 07:26:59,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE