/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/safe007_rmo.oepc_rmo.opt-thin001_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:34:34,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:34:34,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:34:34,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:34:34,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:34:34,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:34:34,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:34:34,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:34:34,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:34:34,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:34:34,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:34:34,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:34:34,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:34:34,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:34:34,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:34:34,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:34:34,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:34:34,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:34:34,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:34:34,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:34:34,242 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 11:34:34,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:34:34,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:34:34,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:34:34,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:34:34,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:34:34,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:34:34,269 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:34:34,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:34:34,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:34:34,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:34:34,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:34:34,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:34:34,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:34:34,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:34:34,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:34,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:34:34,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:34:34,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:34:34,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:34:34,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:34:34,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:34:34,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:34:34,501 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:34:34,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_rmo.oepc_rmo.opt-thin001_rmo.oepc_rmo.opt.i [2022-09-16 11:34:34,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e000999/a4905e4d9ad64daca861efb417189eb7/FLAG2c668167f [2022-09-16 11:34:35,032 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:34:35,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_rmo.oepc_rmo.opt-thin001_rmo.oepc_rmo.opt.i [2022-09-16 11:34:35,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e000999/a4905e4d9ad64daca861efb417189eb7/FLAG2c668167f [2022-09-16 11:34:35,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e000999/a4905e4d9ad64daca861efb417189eb7 [2022-09-16 11:34:35,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:34:35,065 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:34:35,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:35,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:34:35,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:34:35,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c788b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35, skipping insertion in model container [2022-09-16 11:34:35,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:34:35,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:34:35,292 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/safe007_rmo.oepc_rmo.opt-thin001_rmo.oepc_rmo.opt.i[1026,1039] [2022-09-16 11:34:35,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:35,471 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:34:35,479 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/safe007_rmo.oepc_rmo.opt-thin001_rmo.oepc_rmo.opt.i[1026,1039] [2022-09-16 11:34:35,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:35,547 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:34:35,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35 WrapperNode [2022-09-16 11:34:35,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:35,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:35,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:34:35,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:34:35,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,597 INFO L138 Inliner]: procedures = 176, calls = 67, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2022-09-16 11:34:35,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:35,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:34:35,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:34:35,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:34:35,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:34:35,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:34:35,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:34:35,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:34:35,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (1/1) ... [2022-09-16 11:34:35,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:35,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:34:35,705 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 11:34:35,721 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 11:34:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:34:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:34:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:34:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:34:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:34:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:34:35,735 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:34:35,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:34:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:34:35,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:34:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:34:35,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:34:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:34:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:34:35,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:34:35,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:34:35,738 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 11:34:35,863 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:34:35,865 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:34:36,339 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:34:36,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:34:36,633 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:34:36,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:36 BoogieIcfgContainer [2022-09-16 11:34:36,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:34:36,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:34:36,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:34:36,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:34:36,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:34:35" (1/3) ... [2022-09-16 11:34:36,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c928ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:36, skipping insertion in model container [2022-09-16 11:34:36,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:35" (2/3) ... [2022-09-16 11:34:36,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c928ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:36, skipping insertion in model container [2022-09-16 11:34:36,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:36" (3/3) ... [2022-09-16 11:34:36,642 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_rmo.oepc_rmo.opt-thin001_rmo.oepc_rmo.opt.i [2022-09-16 11:34:36,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:34:36,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:34:36,655 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:34:36,723 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:34:36,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 137 transitions, 289 flow [2022-09-16 11:34:36,847 INFO L130 PetriNetUnfolder]: 2/134 cut-off events. [2022-09-16 11:34:36,847 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:36,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 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 72 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-09-16 11:34:36,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 137 transitions, 289 flow [2022-09-16 11:34:36,857 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 134 transitions, 277 flow [2022-09-16 11:34:36,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:34:36,876 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;@49a5a32e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:34:36,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:34:36,900 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-09-16 11:34:36,900 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:36,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:36,901 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] [2022-09-16 11:34:36,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:36,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -79838694, now seen corresponding path program 1 times [2022-09-16 11:34:36,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:36,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929130308] [2022-09-16 11:34:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:37,262 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 11:34:37,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:37,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929130308] [2022-09-16 11:34:37,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929130308] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:37,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:37,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292289010] [2022-09-16 11:34:37,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:37,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:37,344 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-09-16 11:34:37,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 11:34:37,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:37,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-09-16 11:34:37,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:37,691 INFO L130 PetriNetUnfolder]: 370/1646 cut-off events. [2022-09-16 11:34:37,691 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-09-16 11:34:37,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1646 events. 370/1646 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12991 event pairs, 227 based on Foata normal form. 70/1405 useless extension candidates. Maximal degree in co-relation 2215. Up to 573 conditions per place. [2022-09-16 11:34:37,713 INFO L137 encePairwiseOnDemand]: 125/137 looper letters, 24 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2022-09-16 11:34:37,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 353 flow [2022-09-16 11:34:37,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:37,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-09-16 11:34:37,730 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9391727493917275 [2022-09-16 11:34:37,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-09-16 11:34:37,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-09-16 11:34:37,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:37,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-09-16 11:34:37,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 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 11:34:37,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 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 11:34:37,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 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 11:34:37,751 INFO L175 Difference]: Start difference. First operand has 142 places, 134 transitions, 277 flow. Second operand 3 states and 386 transitions. [2022-09-16 11:34:37,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 353 flow [2022-09-16 11:34:37,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 141 transitions, 348 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:37,758 INFO L231 Difference]: Finished difference. Result has 141 places, 134 transitions, 304 flow [2022-09-16 11:34:37,760 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2022-09-16 11:34:37,765 INFO L287 CegarLoopForPetriNet]: 142 programPoint places, -1 predicate places. [2022-09-16 11:34:37,766 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 304 flow [2022-09-16 11:34:37,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 11:34:37,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:37,766 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] [2022-09-16 11:34:37,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:37,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1406375946, now seen corresponding path program 1 times [2022-09-16 11:34:37,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:37,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466656503] [2022-09-16 11:34:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:37,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:37,880 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 11:34:37,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:37,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466656503] [2022-09-16 11:34:37,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466656503] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:37,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:37,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:37,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215402633] [2022-09-16 11:34:37,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:37,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:37,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:37,883 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-09-16 11:34:37,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:37,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:37,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-09-16 11:34:37,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:38,108 INFO L130 PetriNetUnfolder]: 232/1070 cut-off events. [2022-09-16 11:34:38,112 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-09-16 11:34:38,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1743 conditions, 1070 events. 232/1070 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7265 event pairs, 82 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1671. Up to 233 conditions per place. [2022-09-16 11:34:38,120 INFO L137 encePairwiseOnDemand]: 127/137 looper letters, 27 selfloop transitions, 10 changer transitions 3/153 dead transitions. [2022-09-16 11:34:38,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 153 transitions, 440 flow [2022-09-16 11:34:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:38,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 507 transitions. [2022-09-16 11:34:38,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9251824817518248 [2022-09-16 11:34:38,122 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 507 transitions. [2022-09-16 11:34:38,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 507 transitions. [2022-09-16 11:34:38,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:38,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 507 transitions. [2022-09-16 11:34:38,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 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 11:34:38,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 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 11:34:38,125 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 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 11:34:38,126 INFO L175 Difference]: Start difference. First operand has 141 places, 134 transitions, 304 flow. Second operand 4 states and 507 transitions. [2022-09-16 11:34:38,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 153 transitions, 440 flow [2022-09-16 11:34:38,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 153 transitions, 436 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:38,132 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 360 flow [2022-09-16 11:34:38,132 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2022-09-16 11:34:38,133 INFO L287 CegarLoopForPetriNet]: 142 programPoint places, 3 predicate places. [2022-09-16 11:34:38,133 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 360 flow [2022-09-16 11:34:38,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:38,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:38,134 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] [2022-09-16 11:34:38,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:38,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:38,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1406375945, now seen corresponding path program 1 times [2022-09-16 11:34:38,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:38,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121612281] [2022-09-16 11:34:38,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:38,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:38,210 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 11:34:38,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:38,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121612281] [2022-09-16 11:34:38,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121612281] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:38,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:38,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:38,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870209077] [2022-09-16 11:34:38,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:38,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:38,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:38,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:38,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:38,213 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-09-16 11:34:38,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:38,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:38,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-09-16 11:34:38,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:38,325 INFO L130 PetriNetUnfolder]: 122/503 cut-off events. [2022-09-16 11:34:38,325 INFO L131 PetriNetUnfolder]: For 300/300 co-relation queries the response was YES. [2022-09-16 11:34:38,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 503 events. 122/503 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2470 event pairs, 15 based on Foata normal form. 54/533 useless extension candidates. Maximal degree in co-relation 890. Up to 176 conditions per place. [2022-09-16 11:34:38,329 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 21 selfloop transitions, 4 changer transitions 0/138 dead transitions. [2022-09-16 11:34:38,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 138 transitions, 386 flow [2022-09-16 11:34:38,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:38,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2022-09-16 11:34:38,331 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8978102189781022 [2022-09-16 11:34:38,331 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2022-09-16 11:34:38,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2022-09-16 11:34:38,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:38,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2022-09-16 11:34:38,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 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 11:34:38,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 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 11:34:38,334 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 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 11:34:38,334 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 360 flow. Second operand 4 states and 492 transitions. [2022-09-16 11:34:38,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 138 transitions, 386 flow [2022-09-16 11:34:38,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 138 transitions, 368 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:38,340 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 308 flow [2022-09-16 11:34:38,340 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-09-16 11:34:38,341 INFO L287 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2022-09-16 11:34:38,341 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 308 flow [2022-09-16 11:34:38,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:38,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:38,342 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, 1, 1, 1, 1, 1, 1] [2022-09-16 11:34:38,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:38,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:38,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:38,342 INFO L85 PathProgramCache]: Analyzing trace with hash -8367388, now seen corresponding path program 1 times [2022-09-16 11:34:38,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:38,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725525210] [2022-09-16 11:34:38,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:38,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:38,480 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 11:34:38,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:38,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725525210] [2022-09-16 11:34:38,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725525210] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:38,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:38,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:34:38,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956326764] [2022-09-16 11:34:38,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:38,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:34:38,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:38,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:34:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:34:38,485 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2022-09-16 11:34:38,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:38,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:38,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2022-09-16 11:34:38,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:38,623 INFO L130 PetriNetUnfolder]: 113/665 cut-off events. [2022-09-16 11:34:38,623 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2022-09-16 11:34:38,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 665 events. 113/665 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3615 event pairs, 24 based on Foata normal form. 12/645 useless extension candidates. Maximal degree in co-relation 959. Up to 89 conditions per place. [2022-09-16 11:34:38,625 INFO L137 encePairwiseOnDemand]: 130/137 looper letters, 0 selfloop transitions, 0 changer transitions 141/141 dead transitions. [2022-09-16 11:34:38,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 378 flow [2022-09-16 11:34:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:34:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:34:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2022-09-16 11:34:38,627 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.891970802919708 [2022-09-16 11:34:38,627 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2022-09-16 11:34:38,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2022-09-16 11:34:38,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:38,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2022-09-16 11:34:38,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 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 11:34:38,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 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 11:34:38,630 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 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 11:34:38,630 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 308 flow. Second operand 5 states and 611 transitions. [2022-09-16 11:34:38,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 378 flow [2022-09-16 11:34:38,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 141 transitions, 363 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:34:38,633 INFO L231 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2022-09-16 11:34:38,634 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2022-09-16 11:34:38,635 INFO L287 CegarLoopForPetriNet]: 142 programPoint places, -3 predicate places. [2022-09-16 11:34:38,637 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2022-09-16 11:34:38,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:38,641 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:34:38,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:34:38,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:34:38,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:34:38,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:34:38,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:34:38,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:34:38,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:34:38,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:34:38,644 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:34:38,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:34:38,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:34:38,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:34:38,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:34:38,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:34:38,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:34:38,646 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:34:38,652 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:38,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:38,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:38 BasicIcfg [2022-09-16 11:34:38,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:38,662 INFO L158 Benchmark]: Toolchain (without parser) took 3596.53ms. Allocated memory was 179.3MB in the beginning and 304.1MB in the end (delta: 124.8MB). Free memory was 155.2MB in the beginning and 215.7MB in the end (delta: -60.5MB). Peak memory consumption was 63.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:38,662 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory was 139.7MB in the beginning and 139.6MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:38,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.15ms. Allocated memory was 179.3MB in the beginning and 226.5MB in the end (delta: 47.2MB). Free memory was 155.2MB in the beginning and 188.0MB in the end (delta: -32.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-16 11:34:38,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.50ms. Allocated memory is still 226.5MB. Free memory was 187.6MB in the beginning and 185.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:38,664 INFO L158 Benchmark]: Boogie Preprocessor took 36.53ms. Allocated memory is still 226.5MB. Free memory was 185.5MB in the beginning and 183.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:38,665 INFO L158 Benchmark]: RCFGBuilder took 999.73ms. Allocated memory is still 226.5MB. Free memory was 183.1MB in the beginning and 149.7MB in the end (delta: 33.4MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. [2022-09-16 11:34:38,668 INFO L158 Benchmark]: TraceAbstraction took 2023.73ms. Allocated memory was 226.5MB in the beginning and 304.1MB in the end (delta: 77.6MB). Free memory was 149.2MB in the beginning and 215.7MB in the end (delta: -66.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-16 11:34:38,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory was 139.7MB in the beginning and 139.6MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 482.15ms. Allocated memory was 179.3MB in the beginning and 226.5MB in the end (delta: 47.2MB). Free memory was 155.2MB in the beginning and 188.0MB in the end (delta: -32.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.50ms. Allocated memory is still 226.5MB. Free memory was 187.6MB in the beginning and 185.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.53ms. Allocated memory is still 226.5MB. Free memory was 185.5MB in the beginning and 183.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 999.73ms. Allocated memory is still 226.5MB. Free memory was 183.1MB in the beginning and 149.7MB in the end (delta: 33.4MB). Peak memory consumption was 51.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2023.73ms. Allocated memory was 226.5MB in the beginning and 304.1MB in the end (delta: 77.6MB). Free memory was 149.2MB in the beginning and 215.7MB in the end (delta: -66.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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, 167 locations, 15 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: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 313 NumberOfCodeBlocks, 313 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 863 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:34:38,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...