/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:56,090 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 11:33:56,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:56,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:56,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:56,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:56,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:56,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:56,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:56,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:56,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:56,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:56,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:56,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:56,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:33:56,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:56,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:56,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:56,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:33:56,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:56,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:56,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:56,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:56,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:56,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:56,232 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:56,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:56,233 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:56,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:56,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:56,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:56,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:56,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:56,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:56,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:56,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:56,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:56,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:56,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:56,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:56,236 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:56,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:56,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:56,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:56,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:56,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:56,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:56,516 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:56,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-09-16 11:33:56,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63e45d4f/604b9ea72a4840fc84343f7958f57e28/FLAGecdc030a4 [2022-09-16 11:33:57,090 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:57,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-09-16 11:33:57,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63e45d4f/604b9ea72a4840fc84343f7958f57e28/FLAGecdc030a4 [2022-09-16 11:33:57,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63e45d4f/604b9ea72a4840fc84343f7958f57e28 [2022-09-16 11:33:57,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:57,561 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:57,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:57,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:57,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:57,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b77e4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57, skipping insertion in model container [2022-09-16 11:33:57,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:57,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:57,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-09-16 11:33:58,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:58,080 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:58,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-09-16 11:33:58,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:58,193 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:58,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58 WrapperNode [2022-09-16 11:33:58,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:58,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:58,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:58,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:58,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,253 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 291 [2022-09-16 11:33:58,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:58,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:58,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:58,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:58,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:58,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:58,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:58,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:58,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (1/1) ... [2022-09-16 11:33:58,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:58,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:58,348 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) [2022-09-16 11:33:58,376 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 [2022-09-16 11:33:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:33:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:33:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:33:58,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:33:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:58,403 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:33:58,618 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:58,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:59,120 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:33:59,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:33:59,573 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:33:59,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:59 BoogieIcfgContainer [2022-09-16 11:33:59,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:33:59,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:33:59,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:33:59,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:33:59,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:57" (1/3) ... [2022-09-16 11:33:59,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d9310f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:59, skipping insertion in model container [2022-09-16 11:33:59,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:58" (2/3) ... [2022-09-16 11:33:59,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d9310f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:59, skipping insertion in model container [2022-09-16 11:33:59,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:59" (3/3) ... [2022-09-16 11:33:59,585 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-09-16 11:33:59,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:33:59,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:33:59,603 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:33:59,672 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:33:59,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2022-09-16 11:33:59,787 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-09-16 11:33:59,788 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:59,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-09-16 11:33:59,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 138 transitions, 296 flow [2022-09-16 11:33:59,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 134 transitions, 280 flow [2022-09-16 11:33:59,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:33:59,821 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=false, 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;@7c48199a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:33:59,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:33:59,841 INFO L130 PetriNetUnfolder]: 0/53 cut-off events. [2022-09-16 11:33:59,842 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:59,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:59,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:59,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:59,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:59,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1364518591, now seen corresponding path program 1 times [2022-09-16 11:33:59,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:59,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985183251] [2022-09-16 11:33:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:00,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:00,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985183251] [2022-09-16 11:34:00,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985183251] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:00,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:00,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:00,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160659059] [2022-09-16 11:34:00,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:00,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:00,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:00,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:00,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:00,214 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2022-09-16 11:34:00,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:00,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:00,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2022-09-16 11:34:00,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:01,387 INFO L130 PetriNetUnfolder]: 3018/5238 cut-off events. [2022-09-16 11:34:01,387 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-09-16 11:34:01,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9657 conditions, 5238 events. 3018/5238 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 39716 event pairs, 1095 based on Foata normal form. 540/3988 useless extension candidates. Maximal degree in co-relation 9602. Up to 4247 conditions per place. [2022-09-16 11:34:01,493 INFO L137 encePairwiseOnDemand]: 123/138 looper letters, 31 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2022-09-16 11:34:01,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 144 transitions, 381 flow [2022-09-16 11:34:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-09-16 11:34:01,507 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.927536231884058 [2022-09-16 11:34:01,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-09-16 11:34:01,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-09-16 11:34:01,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:01,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-09-16 11:34:01,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:01,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:01,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:01,524 INFO L175 Difference]: Start difference. First operand has 145 places, 134 transitions, 280 flow. Second operand 3 states and 384 transitions. [2022-09-16 11:34:01,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 144 transitions, 381 flow [2022-09-16 11:34:01,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 144 transitions, 374 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:34:01,531 INFO L231 Difference]: Finished difference. Result has 143 places, 135 transitions, 317 flow [2022-09-16 11:34:01,533 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2022-09-16 11:34:01,536 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, -2 predicate places. [2022-09-16 11:34:01,537 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 317 flow [2022-09-16 11:34:01,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:01,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:01,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:01,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:01,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:34:01,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:01,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1543198186, now seen corresponding path program 1 times [2022-09-16 11:34:01,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:01,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472599558] [2022-09-16 11:34:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:01,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:01,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:01,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472599558] [2022-09-16 11:34:01,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472599558] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:01,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:01,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:01,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737911071] [2022-09-16 11:34:01,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:01,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:01,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:01,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:01,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:01,628 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2022-09-16 11:34:01,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 317 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:01,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:01,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2022-09-16 11:34:01,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:02,348 INFO L130 PetriNetUnfolder]: 1319/4955 cut-off events. [2022-09-16 11:34:02,349 INFO L131 PetriNetUnfolder]: For 306/306 co-relation queries the response was YES. [2022-09-16 11:34:02,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8126 conditions, 4955 events. 1319/4955 cut-off events. For 306/306 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 49909 event pairs, 989 based on Foata normal form. 0/4248 useless extension candidates. Maximal degree in co-relation 8072. Up to 1853 conditions per place. [2022-09-16 11:34:02,409 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 27 selfloop transitions, 5 changer transitions 0/140 dead transitions. [2022-09-16 11:34:02,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 389 flow [2022-09-16 11:34:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:02,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2022-09-16 11:34:02,415 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8768115942028986 [2022-09-16 11:34:02,415 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2022-09-16 11:34:02,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2022-09-16 11:34:02,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:02,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2022-09-16 11:34:02,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,420 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,420 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 317 flow. Second operand 4 states and 484 transitions. [2022-09-16 11:34:02,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 140 transitions, 389 flow [2022-09-16 11:34:02,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 140 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:02,424 INFO L231 Difference]: Finished difference. Result has 141 places, 131 transitions, 306 flow [2022-09-16 11:34:02,425 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=141, PETRI_TRANSITIONS=131} [2022-09-16 11:34:02,425 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, -4 predicate places. [2022-09-16 11:34:02,426 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 131 transitions, 306 flow [2022-09-16 11:34:02,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:02,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:02,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:02,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:34:02,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:02,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1789404139, now seen corresponding path program 1 times [2022-09-16 11:34:02,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:02,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385919189] [2022-09-16 11:34:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:02,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:02,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:02,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385919189] [2022-09-16 11:34:02,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385919189] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:02,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:02,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556338098] [2022-09-16 11:34:02,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:02,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:02,494 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2022-09-16 11:34:02,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 131 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:02,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2022-09-16 11:34:02,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:02,803 INFO L130 PetriNetUnfolder]: 646/1571 cut-off events. [2022-09-16 11:34:02,803 INFO L131 PetriNetUnfolder]: For 209/209 co-relation queries the response was YES. [2022-09-16 11:34:02,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3205 conditions, 1571 events. 646/1571 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 10925 event pairs, 68 based on Foata normal form. 0/1400 useless extension candidates. Maximal degree in co-relation 3150. Up to 727 conditions per place. [2022-09-16 11:34:02,818 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 35 selfloop transitions, 9 changer transitions 0/152 dead transitions. [2022-09-16 11:34:02,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 454 flow [2022-09-16 11:34:02,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:02,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:02,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2022-09-16 11:34:02,821 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8985507246376812 [2022-09-16 11:34:02,821 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 496 transitions. [2022-09-16 11:34:02,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 496 transitions. [2022-09-16 11:34:02,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:02,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 496 transitions. [2022-09-16 11:34:02,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,824 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,824 INFO L175 Difference]: Start difference. First operand has 141 places, 131 transitions, 306 flow. Second operand 4 states and 496 transitions. [2022-09-16 11:34:02,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 454 flow [2022-09-16 11:34:02,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 448 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:02,828 INFO L231 Difference]: Finished difference. Result has 143 places, 135 transitions, 358 flow [2022-09-16 11:34:02,828 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=143, PETRI_TRANSITIONS=135} [2022-09-16 11:34:02,829 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, -2 predicate places. [2022-09-16 11:34:02,829 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 135 transitions, 358 flow [2022-09-16 11:34:02,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:02,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:02,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:02,830 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:34:02,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:02,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1184070791, now seen corresponding path program 1 times [2022-09-16 11:34:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:02,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001360365] [2022-09-16 11:34:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:02,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001360365] [2022-09-16 11:34:02,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001360365] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:02,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:02,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:34:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489312559] [2022-09-16 11:34:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:02,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:34:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:02,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:34:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:34:02,924 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2022-09-16 11:34:02,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:02,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:02,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2022-09-16 11:34:02,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:03,223 INFO L130 PetriNetUnfolder]: 454/1499 cut-off events. [2022-09-16 11:34:03,223 INFO L131 PetriNetUnfolder]: For 775/775 co-relation queries the response was YES. [2022-09-16 11:34:03,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3129 conditions, 1499 events. 454/1499 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10694 event pairs, 78 based on Foata normal form. 0/1434 useless extension candidates. Maximal degree in co-relation 3073. Up to 342 conditions per place. [2022-09-16 11:34:03,234 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 38 selfloop transitions, 13 changer transitions 4/163 dead transitions. [2022-09-16 11:34:03,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 163 transitions, 552 flow [2022-09-16 11:34:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:34:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:34:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2022-09-16 11:34:03,237 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8971014492753623 [2022-09-16 11:34:03,237 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 619 transitions. [2022-09-16 11:34:03,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 619 transitions. [2022-09-16 11:34:03,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:03,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 619 transitions. [2022-09-16 11:34:03,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,241 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,241 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 358 flow. Second operand 5 states and 619 transitions. [2022-09-16 11:34:03,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 163 transitions, 552 flow [2022-09-16 11:34:03,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 163 transitions, 534 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:03,247 INFO L231 Difference]: Finished difference. Result has 146 places, 135 transitions, 382 flow [2022-09-16 11:34:03,248 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=382, PETRI_PLACES=146, PETRI_TRANSITIONS=135} [2022-09-16 11:34:03,251 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, 1 predicate places. [2022-09-16 11:34:03,251 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 135 transitions, 382 flow [2022-09-16 11:34:03,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:03,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:03,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:34:03,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:34:03,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:03,259 INFO L85 PathProgramCache]: Analyzing trace with hash 261993564, now seen corresponding path program 1 times [2022-09-16 11:34:03,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:03,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771574892] [2022-09-16 11:34:03,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:03,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:34:03,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:03,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771574892] [2022-09-16 11:34:03,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771574892] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:03,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:34:03,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27339412] [2022-09-16 11:34:03,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:03,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:34:03,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:03,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:34:03,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:34:03,406 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2022-09-16 11:34:03,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:03,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2022-09-16 11:34:03,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:03,640 INFO L130 PetriNetUnfolder]: 427/1189 cut-off events. [2022-09-16 11:34:03,641 INFO L131 PetriNetUnfolder]: For 659/659 co-relation queries the response was YES. [2022-09-16 11:34:03,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2813 conditions, 1189 events. 427/1189 cut-off events. For 659/659 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7802 event pairs, 24 based on Foata normal form. 16/1185 useless extension candidates. Maximal degree in co-relation 2756. Up to 255 conditions per place. [2022-09-16 11:34:03,649 INFO L137 encePairwiseOnDemand]: 129/138 looper letters, 0 selfloop transitions, 0 changer transitions 155/155 dead transitions. [2022-09-16 11:34:03,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 155 transitions, 504 flow [2022-09-16 11:34:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:34:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:34:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 723 transitions. [2022-09-16 11:34:03,652 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8731884057971014 [2022-09-16 11:34:03,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 723 transitions. [2022-09-16 11:34:03,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 723 transitions. [2022-09-16 11:34:03,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:03,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 723 transitions. [2022-09-16 11:34:03,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,656 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,657 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 382 flow. Second operand 6 states and 723 transitions. [2022-09-16 11:34:03,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 155 transitions, 504 flow [2022-09-16 11:34:03,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 155 transitions, 449 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:34:03,665 INFO L231 Difference]: Finished difference. Result has 141 places, 0 transitions, 0 flow [2022-09-16 11:34:03,665 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=141, PETRI_TRANSITIONS=0} [2022-09-16 11:34:03,666 INFO L287 CegarLoopForPetriNet]: 145 programPoint places, -4 predicate places. [2022-09-16 11:34:03,666 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 0 transitions, 0 flow [2022-09-16 11:34:03,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:03,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:34:03,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:34:03,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:34:03,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:34:03,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:34:03,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:34:03,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:34:03,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:34:03,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:34:03,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:34:03,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:34:03,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:34:03,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:34:03,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:34:03,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:34:03,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:34:03,672 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:34:03,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:34:03,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:34:03,673 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:34:03,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:34:03,673 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:34:03,679 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:03,679 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:03,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:03 BasicIcfg [2022-09-16 11:34:03,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:03,685 INFO L158 Benchmark]: Toolchain (without parser) took 6123.20ms. Allocated memory was 177.2MB in the beginning and 351.3MB in the end (delta: 174.1MB). Free memory was 149.4MB in the beginning and 132.4MB in the end (delta: 17.0MB). Peak memory consumption was 190.7MB. Max. memory is 8.0GB. [2022-09-16 11:34:03,685 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 177.2MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:03,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.23ms. Allocated memory was 177.2MB in the beginning and 259.0MB in the end (delta: 81.8MB). Free memory was 149.2MB in the beginning and 217.4MB in the end (delta: -68.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:03,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.62ms. Allocated memory is still 259.0MB. Free memory was 217.2MB in the beginning and 214.2MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:03,686 INFO L158 Benchmark]: Boogie Preprocessor took 42.79ms. Allocated memory is still 259.0MB. Free memory was 214.2MB in the beginning and 212.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:03,687 INFO L158 Benchmark]: RCFGBuilder took 1277.33ms. Allocated memory is still 259.0MB. Free memory was 212.0MB in the beginning and 169.7MB in the end (delta: 42.3MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. [2022-09-16 11:34:03,687 INFO L158 Benchmark]: TraceAbstraction took 4105.72ms. Allocated memory was 259.0MB in the beginning and 351.3MB in the end (delta: 92.3MB). Free memory was 168.6MB in the beginning and 132.4MB in the end (delta: 36.2MB). Peak memory consumption was 128.5MB. Max. memory is 8.0GB. [2022-09-16 11:34:03,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 177.2MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 632.23ms. Allocated memory was 177.2MB in the beginning and 259.0MB in the end (delta: 81.8MB). Free memory was 149.2MB in the beginning and 217.4MB in the end (delta: -68.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.62ms. Allocated memory is still 259.0MB. Free memory was 217.2MB in the beginning and 214.2MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.79ms. Allocated memory is still 259.0MB. Free memory was 214.2MB in the beginning and 212.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1277.33ms. Allocated memory is still 259.0MB. Free memory was 212.0MB in the beginning and 169.7MB in the end (delta: 42.3MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4105.72ms. Allocated memory was 259.0MB in the beginning and 351.3MB in the end (delta: 92.3MB). Free memory was 168.6MB in the beginning and 132.4MB in the end (delta: 36.2MB). Peak memory consumption was 128.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 179 locations, 20 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: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 17 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.4s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:34:03,736 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...