/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/safe010_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:34:41,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:34:41,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:34:41,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:34:41,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:34:41,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:34:41,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:34:41,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:34:41,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:34:41,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:34:41,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:34:41,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:34:41,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:34:41,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:34:41,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:34:41,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:34:41,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:34:41,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:34:41,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:34:41,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:34:41,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:34:41,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:34:41,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:34:41,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:34:41,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:34:41,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:34:41,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:34:41,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:34:41,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:34:41,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-16 11:34:41,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:34:41,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:34:41,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:34:41,446 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 11:34:41,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:34:41,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:34:41,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:34:41,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:34:41,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:34:41,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:34:41,480 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:34:41,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:34:41,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:34:41,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:34:41,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:34:41,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:34:41,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:34:41,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:34:41,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:34:41,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:34:41,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:34:41,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:41,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:34:41,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:34:41,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:34:41,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:34:41,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:34:41,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:34:41,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:34:41,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:34:41,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:34:41,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:34:41,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:34:41,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:34:41,719 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:34:41,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-09-16 11:34:41,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dede3272/6523bfc782d1489590844f7e7b8ce67c/FLAG5a1dea749 [2022-09-16 11:34:42,296 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:34:42,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-09-16 11:34:42,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dede3272/6523bfc782d1489590844f7e7b8ce67c/FLAG5a1dea749 [2022-09-16 11:34:42,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dede3272/6523bfc782d1489590844f7e7b8ce67c [2022-09-16 11:34:42,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:34:42,651 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:34:42,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:42,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:34:42,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:34:42,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:42" (1/1) ... [2022-09-16 11:34:42,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797cb14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:42, skipping insertion in model container [2022-09-16 11:34:42,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:42" (1/1) ... [2022-09-16 11:34:42,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:34:42,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:34:42,887 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/safe010_tso.i[945,958] [2022-09-16 11:34:42,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:43,000 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:34:43,011 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/safe010_tso.i[945,958] [2022-09-16 11:34:43,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:43,066 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:34:43,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43 WrapperNode [2022-09-16 11:34:43,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:43,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:43,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:34:43,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:34:43,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,105 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-09-16 11:34:43,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:43,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:34:43,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:34:43,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:34:43,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:34:43,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:34:43,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:34:43,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:34:43,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (1/1) ... [2022-09-16 11:34:43,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:43,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:34:43,163 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 11:34:43,192 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 11:34:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:34:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:34:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:34:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:34:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:34:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:34:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:34:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:34:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:34:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:34:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:34:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:34:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:34:43,212 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 11:34:43,384 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:34:43,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:34:43,542 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:34:43,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:34:43,562 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:34:43,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:43 BoogieIcfgContainer [2022-09-16 11:34:43,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:34:43,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:34:43,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:34:43,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:34:43,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:34:42" (1/3) ... [2022-09-16 11:34:43,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0eb571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:43, skipping insertion in model container [2022-09-16 11:34:43,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:43" (2/3) ... [2022-09-16 11:34:43,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0eb571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:43, skipping insertion in model container [2022-09-16 11:34:43,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:43" (3/3) ... [2022-09-16 11:34:43,574 INFO L112 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2022-09-16 11:34:43,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:34:43,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-09-16 11:34:43,592 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:34:43,644 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:34:43,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 77 transitions, 164 flow [2022-09-16 11:34:43,718 INFO L130 PetriNetUnfolder]: 2/75 cut-off events. [2022-09-16 11:34:43,718 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:43,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 75 events. 2/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-09-16 11:34:43,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 77 transitions, 164 flow [2022-09-16 11:34:43,732 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 75 transitions, 156 flow [2022-09-16 11:34:43,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:34:43,751 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;@24cc2b5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:34:43,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:34:43,760 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-09-16 11:34:43,760 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:43,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:43,761 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] [2022-09-16 11:34:43,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash -50850978, now seen corresponding path program 1 times [2022-09-16 11:34:43,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:43,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391757554] [2022-09-16 11:34:43,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:43,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:44,052 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 11:34:44,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:44,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391757554] [2022-09-16 11:34:44,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391757554] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:44,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:44,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:44,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447618054] [2022-09-16 11:34:44,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:44,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:44,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:44,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:44,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:44,108 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2022-09-16 11:34:44,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 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 11:34:44,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:44,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2022-09-16 11:34:44,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:44,256 INFO L130 PetriNetUnfolder]: 10/192 cut-off events. [2022-09-16 11:34:44,256 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-16 11:34:44,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 192 events. 10/192 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 627 event pairs, 3 based on Foata normal form. 14/188 useless extension candidates. Maximal degree in co-relation 200. Up to 26 conditions per place. [2022-09-16 11:34:44,259 INFO L137 encePairwiseOnDemand]: 68/77 looper letters, 9 selfloop transitions, 3 changer transitions 2/76 dead transitions. [2022-09-16 11:34:44,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 189 flow [2022-09-16 11:34:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:44,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2022-09-16 11:34:44,273 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9264069264069265 [2022-09-16 11:34:44,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2022-09-16 11:34:44,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2022-09-16 11:34:44,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:44,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2022-09-16 11:34:44,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 11:34:44,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 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 11:34:44,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 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 11:34:44,292 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 156 flow. Second operand 3 states and 214 transitions. [2022-09-16 11:34:44,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 189 flow [2022-09-16 11:34:44,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:44,300 INFO L231 Difference]: Finished difference. Result has 80 places, 72 transitions, 165 flow [2022-09-16 11:34:44,301 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=80, PETRI_TRANSITIONS=72} [2022-09-16 11:34:44,304 INFO L287 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2022-09-16 11:34:44,305 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 72 transitions, 165 flow [2022-09-16 11:34:44,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 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 11:34:44,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:44,305 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] [2022-09-16 11:34:44,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:44,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:44,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash -61770037, now seen corresponding path program 1 times [2022-09-16 11:34:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:44,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017097421] [2022-09-16 11:34:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:44,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:44,446 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 11:34:44,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:44,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017097421] [2022-09-16 11:34:44,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017097421] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:44,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:44,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:44,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720555933] [2022-09-16 11:34:44,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:44,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:44,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:44,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:44,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:44,453 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2022-09-16 11:34:44,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 72 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 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 11:34:44,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:44,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2022-09-16 11:34:44,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:44,536 INFO L130 PetriNetUnfolder]: 5/133 cut-off events. [2022-09-16 11:34:44,536 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-09-16 11:34:44,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 133 events. 5/133 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 268 event pairs, 1 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 144. Up to 14 conditions per place. [2022-09-16 11:34:44,538 INFO L137 encePairwiseOnDemand]: 72/77 looper letters, 7 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2022-09-16 11:34:44,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 72 transitions, 183 flow [2022-09-16 11:34:44,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2022-09-16 11:34:44,549 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8701298701298701 [2022-09-16 11:34:44,549 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 268 transitions. [2022-09-16 11:34:44,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 268 transitions. [2022-09-16 11:34:44,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:44,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 268 transitions. [2022-09-16 11:34:44,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 0 states have call successors, (0), 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 11:34:44,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:44,559 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:44,559 INFO L175 Difference]: Start difference. First operand has 80 places, 72 transitions, 165 flow. Second operand 4 states and 268 transitions. [2022-09-16 11:34:44,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 72 transitions, 183 flow [2022-09-16 11:34:44,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:44,562 INFO L231 Difference]: Finished difference. Result has 80 places, 70 transitions, 160 flow [2022-09-16 11:34:44,562 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=80, PETRI_TRANSITIONS=70} [2022-09-16 11:34:44,563 INFO L287 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2022-09-16 11:34:44,563 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 70 transitions, 160 flow [2022-09-16 11:34:44,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 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 11:34:44,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:44,564 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] [2022-09-16 11:34:44,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:44,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-09-16 11:34:44,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:44,565 INFO L85 PathProgramCache]: Analyzing trace with hash -61770038, now seen corresponding path program 1 times [2022-09-16 11:34:44,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:44,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314753731] [2022-09-16 11:34:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:44,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:44,652 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 11:34:44,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:44,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314753731] [2022-09-16 11:34:44,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314753731] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:44,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:44,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:44,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718965927] [2022-09-16 11:34:44,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:44,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:44,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:44,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:44,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:44,655 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2022-09-16 11:34:44,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 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 11:34:44,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:44,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2022-09-16 11:34:44,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:44,690 INFO L130 PetriNetUnfolder]: 3/104 cut-off events. [2022-09-16 11:34:44,690 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-09-16 11:34:44,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 104 events. 3/104 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 137 event pairs, 0 based on Foata normal form. 4/104 useless extension candidates. Maximal degree in co-relation 105. Up to 8 conditions per place. [2022-09-16 11:34:44,691 INFO L137 encePairwiseOnDemand]: 72/77 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2022-09-16 11:34:44,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 70 transitions, 174 flow [2022-09-16 11:34:44,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2022-09-16 11:34:44,693 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8636363636363636 [2022-09-16 11:34:44,693 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 266 transitions. [2022-09-16 11:34:44,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 266 transitions. [2022-09-16 11:34:44,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:44,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 266 transitions. [2022-09-16 11:34:44,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 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 11:34:44,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:44,696 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:34:44,696 INFO L175 Difference]: Start difference. First operand has 80 places, 70 transitions, 160 flow. Second operand 4 states and 266 transitions. [2022-09-16 11:34:44,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 70 transitions, 174 flow [2022-09-16 11:34:44,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 70 transitions, 167 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:44,698 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2022-09-16 11:34:44,698 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2022-09-16 11:34:44,701 INFO L287 CegarLoopForPetriNet]: 80 programPoint places, -2 predicate places. [2022-09-16 11:34:44,701 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2022-09-16 11:34:44,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 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 11:34:44,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-09-16 11:34:44,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:34:44,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:34:44,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:34:44,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-09-16 11:34:44,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-09-16 11:34:44,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:34:44,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:34:44,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:34:44,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-09-16 11:34:44,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:44,706 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-16 11:34:44,715 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:44,715 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:44,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:44 BasicIcfg [2022-09-16 11:34:44,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:44,723 INFO L158 Benchmark]: Toolchain (without parser) took 2071.48ms. Allocated memory was 191.9MB in the beginning and 302.0MB in the end (delta: 110.1MB). Free memory was 156.8MB in the beginning and 240.5MB in the end (delta: -83.7MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2022-09-16 11:34:44,727 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:44,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.25ms. Allocated memory was 191.9MB in the beginning and 302.0MB in the end (delta: 110.1MB). Free memory was 156.6MB in the beginning and 261.7MB in the end (delta: -105.1MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:44,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.11ms. Allocated memory is still 302.0MB. Free memory was 261.7MB in the beginning and 259.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:44,728 INFO L158 Benchmark]: Boogie Preprocessor took 18.68ms. Allocated memory is still 302.0MB. Free memory was 259.6MB in the beginning and 258.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:34:44,729 INFO L158 Benchmark]: RCFGBuilder took 439.80ms. Allocated memory is still 302.0MB. Free memory was 258.3MB in the beginning and 245.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:44,729 INFO L158 Benchmark]: TraceAbstraction took 1155.15ms. Allocated memory is still 302.0MB. Free memory was 244.6MB in the beginning and 240.5MB in the end (delta: 4.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-09-16 11:34:44,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 415.25ms. Allocated memory was 191.9MB in the beginning and 302.0MB in the end (delta: 110.1MB). Free memory was 156.6MB in the beginning and 261.7MB in the end (delta: -105.1MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.11ms. Allocated memory is still 302.0MB. Free memory was 261.7MB in the beginning and 259.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.68ms. Allocated memory is still 302.0MB. Free memory was 259.6MB in the beginning and 258.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 439.80ms. Allocated memory is still 302.0MB. Free memory was 258.3MB in the beginning and 245.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1155.15ms. Allocated memory is still 302.0MB. Free memory was 244.6MB in the beginning and 240.5MB in the end (delta: 4.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 728]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 728]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 743]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 743]: 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 5 procedures, 96 locations, 10 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 5 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:34:44,769 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...