/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-divine/divinefifo-bug_1w1r.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:38:56,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:38:56,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:38:56,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:38:56,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:38:56,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:38:56,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:38:56,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:38:56,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:38:56,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:38:56,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:38:56,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:38:56,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:38:56,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:38:56,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:38:56,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:38:56,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:38:56,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:38:56,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:38:56,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:38:56,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:38:56,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:38:56,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:38:56,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:38:56,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:38:56,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:38:56,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:38:56,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:38:56,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:38:56,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:38:56,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:38:56,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:38:56,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:38:56,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:38:56,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:38:56,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:38:56,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:38:56,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:38:56,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:38:56,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:38:56,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:38:56,281 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 11:38:56,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:38:56,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:38:56,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:38:56,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:38:56,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:38:56,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:38:56,314 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:38:56,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:38:56,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:38:56,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:38:56,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:38:56,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:38:56,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:38:56,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:38:56,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:38:56,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:38:56,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:38:56,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:38:56,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:38:56,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:38:56,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:38:56,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:38:56,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:38:56,319 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:38:56,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:38:56,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:38:56,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:38:56,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:38:56,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:38:56,597 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:38:56,598 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:38:56,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/divinefifo-bug_1w1r.i [2022-09-16 11:38:56,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02680de3/57154737f65348b4930dd4d06af0e148/FLAG47348ae75 [2022-09-16 11:38:57,234 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:38:57,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo-bug_1w1r.i [2022-09-16 11:38:57,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02680de3/57154737f65348b4930dd4d06af0e148/FLAG47348ae75 [2022-09-16 11:38:57,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02680de3/57154737f65348b4930dd4d06af0e148 [2022-09-16 11:38:57,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:38:57,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:38:57,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:38:57,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:38:57,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:38:57,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:38:57" (1/1) ... [2022-09-16 11:38:57,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5246d495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:57, skipping insertion in model container [2022-09-16 11:38:57,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:38:57" (1/1) ... [2022-09-16 11:38:57,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:38:57,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:38:57,922 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 11:38:58,148 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-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-09-16 11:38:58,154 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-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-09-16 11:38:58,176 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-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-09-16 11:38:58,178 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-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-09-16 11:38:58,194 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-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-09-16 11:38:58,196 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-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-09-16 11:38:58,213 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-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-09-16 11:38:58,215 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-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-09-16 11:38:58,219 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-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-09-16 11:38:58,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:38:58,230 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:38:58,242 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 11:38:58,278 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-divine/divinefifo-bug_1w1r.i[47275,47288] [2022-09-16 11:38:58,280 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-divine/divinefifo-bug_1w1r.i[47463,47476] [2022-09-16 11:38:58,284 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-divine/divinefifo-bug_1w1r.i[48230,48243] [2022-09-16 11:38:58,285 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-divine/divinefifo-bug_1w1r.i[48344,48357] [2022-09-16 11:38:58,293 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-divine/divinefifo-bug_1w1r.i[48816,48829] [2022-09-16 11:38:58,294 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-divine/divinefifo-bug_1w1r.i[48872,48885] [2022-09-16 11:38:58,298 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-divine/divinefifo-bug_1w1r.i[49384,49397] [2022-09-16 11:38:58,299 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-divine/divinefifo-bug_1w1r.i[49443,49456] [2022-09-16 11:38:58,299 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-divine/divinefifo-bug_1w1r.i[49522,49535] [2022-09-16 11:38:58,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:38:58,344 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:38:58,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58 WrapperNode [2022-09-16 11:38:58,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:38:58,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:38:58,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:38:58,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:38:58,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,434 INFO L138 Inliner]: procedures = 278, calls = 103, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 424 [2022-09-16 11:38:58,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:38:58,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:38:58,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:38:58,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:38:58,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:38:58,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:38:58,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:38:58,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:38:58,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:38:58,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:38:58,528 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 11:38:58,531 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 11:38:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-16 11:38:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-16 11:38:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:38:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-09-16 11:38:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:38:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:38:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:38:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:38:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:38:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 11:38:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:38:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:38:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:38:58,582 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 11:38:58,820 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:38:58,822 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:38:59,479 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:38:59,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:38:59,489 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-16 11:38:59,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:38:59 BoogieIcfgContainer [2022-09-16 11:38:59,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:38:59,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:38:59,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:38:59,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:38:59,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:38:57" (1/3) ... [2022-09-16 11:38:59,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132400e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:38:59, skipping insertion in model container [2022-09-16 11:38:59,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58" (2/3) ... [2022-09-16 11:38:59,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132400e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:38:59, skipping insertion in model container [2022-09-16 11:38:59,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:38:59" (3/3) ... [2022-09-16 11:38:59,500 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.i [2022-09-16 11:38:59,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:38:59,515 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:38:59,515 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:38:59,614 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:38:59,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 483 places, 512 transitions, 1032 flow [2022-09-16 11:38:59,878 INFO L130 PetriNetUnfolder]: 33/511 cut-off events. [2022-09-16 11:38:59,878 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:38:59,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 511 events. 33/511 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1183 event pairs, 0 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 360. Up to 3 conditions per place. [2022-09-16 11:38:59,891 INFO L82 GeneralOperation]: Start removeDead. Operand has 483 places, 512 transitions, 1032 flow [2022-09-16 11:38:59,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 415 places, 439 transitions, 881 flow [2022-09-16 11:38:59,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:38:59,923 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;@4e8dc2c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:38:59,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-09-16 11:38:59,936 INFO L130 PetriNetUnfolder]: 4/92 cut-off events. [2022-09-16 11:38:59,936 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:38:59,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:38:59,937 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] [2022-09-16 11:38:59,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:38:59,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:38:59,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1847391567, now seen corresponding path program 1 times [2022-09-16 11:38:59,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:38:59,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208484135] [2022-09-16 11:38:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:38:59,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:00,232 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 11:39:00,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:00,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208484135] [2022-09-16 11:39:00,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208484135] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:00,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:00,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:00,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053892471] [2022-09-16 11:39:00,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:00,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:00,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:00,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:00,282 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 512 [2022-09-16 11:39:00,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 439 transitions, 881 flow. Second operand has 3 states, 3 states have (on average 482.3333333333333) internal successors, (1447), 3 states have internal predecessors, (1447), 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 11:39:00,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:00,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 512 [2022-09-16 11:39:00,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:00,510 INFO L130 PetriNetUnfolder]: 18/487 cut-off events. [2022-09-16 11:39:00,511 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:00,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 487 events. 18/487 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1084 event pairs, 0 based on Foata normal form. 106/558 useless extension candidates. Maximal degree in co-relation 431. Up to 16 conditions per place. [2022-09-16 11:39:00,525 INFO L137 encePairwiseOnDemand]: 493/512 looper letters, 21 selfloop transitions, 2 changer transitions 1/435 dead transitions. [2022-09-16 11:39:00,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 435 transitions, 919 flow [2022-09-16 11:39:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:00,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1494 transitions. [2022-09-16 11:39:00,545 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.97265625 [2022-09-16 11:39:00,546 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1494 transitions. [2022-09-16 11:39:00,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1494 transitions. [2022-09-16 11:39:00,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:00,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1494 transitions. [2022-09-16 11:39:00,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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 11:39:00,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:00,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:00,574 INFO L175 Difference]: Start difference. First operand has 415 places, 439 transitions, 881 flow. Second operand 3 states and 1494 transitions. [2022-09-16 11:39:00,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 435 transitions, 919 flow [2022-09-16 11:39:00,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 435 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:00,593 INFO L231 Difference]: Finished difference. Result has 417 places, 427 transitions, 874 flow [2022-09-16 11:39:00,597 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=417, PETRI_TRANSITIONS=427} [2022-09-16 11:39:00,604 INFO L287 CegarLoopForPetriNet]: 415 programPoint places, 2 predicate places. [2022-09-16 11:39:00,604 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 427 transitions, 874 flow [2022-09-16 11:39:00,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.3333333333333) internal successors, (1447), 3 states have internal predecessors, (1447), 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 11:39:00,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:00,606 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:00,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:39:00,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:00,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:00,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1347531186, now seen corresponding path program 1 times [2022-09-16 11:39:00,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:00,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192479713] [2022-09-16 11:39:00,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:00,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:00,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:39:00,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:00,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192479713] [2022-09-16 11:39:00,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192479713] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:00,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:00,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:00,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432884159] [2022-09-16 11:39:00,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:00,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:00,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:00,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:00,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:00,780 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 512 [2022-09-16 11:39:00,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 427 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 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 11:39:00,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:00,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 512 [2022-09-16 11:39:00,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:00,910 INFO L130 PetriNetUnfolder]: 18/484 cut-off events. [2022-09-16 11:39:00,910 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-16 11:39:00,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 484 events. 18/484 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1063 event pairs, 0 based on Foata normal form. 2/457 useless extension candidates. Maximal degree in co-relation 434. Up to 17 conditions per place. [2022-09-16 11:39:00,921 INFO L137 encePairwiseOnDemand]: 507/512 looper letters, 11 selfloop transitions, 4 changer transitions 0/426 dead transitions. [2022-09-16 11:39:00,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 426 transitions, 898 flow [2022-09-16 11:39:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1459 transitions. [2022-09-16 11:39:00,925 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9498697916666666 [2022-09-16 11:39:00,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1459 transitions. [2022-09-16 11:39:00,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1459 transitions. [2022-09-16 11:39:00,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:00,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1459 transitions. [2022-09-16 11:39:00,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 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 11:39:00,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:00,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:00,935 INFO L175 Difference]: Start difference. First operand has 417 places, 427 transitions, 874 flow. Second operand 3 states and 1459 transitions. [2022-09-16 11:39:00,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 426 transitions, 898 flow [2022-09-16 11:39:00,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 426 transitions, 896 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:00,943 INFO L231 Difference]: Finished difference. Result has 416 places, 426 transitions, 880 flow [2022-09-16 11:39:00,944 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=416, PETRI_TRANSITIONS=426} [2022-09-16 11:39:00,945 INFO L287 CegarLoopForPetriNet]: 415 programPoint places, 1 predicate places. [2022-09-16 11:39:00,945 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 426 transitions, 880 flow [2022-09-16 11:39:00,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 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 11:39:00,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:00,947 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:00,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:39:00,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1176204979, now seen corresponding path program 1 times [2022-09-16 11:39:00,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:00,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341496456] [2022-09-16 11:39:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:01,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341496456] [2022-09-16 11:39:01,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341496456] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:39:01,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604420245] [2022-09-16 11:39:01,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:01,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:39:01,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:39:01,103 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:39:01,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:39:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 11:39:01,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:39:01,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:01,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:39:01,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604420245] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:01,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:39:01,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 11:39:01,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067603677] [2022-09-16 11:39:01,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:01,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:39:01,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:01,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:39:01,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:39:01,383 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 512 [2022-09-16 11:39:01,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 426 transitions, 880 flow. Second operand has 4 states, 4 states have (on average 484.25) internal successors, (1937), 4 states have internal predecessors, (1937), 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 11:39:01,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:01,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 512 [2022-09-16 11:39:01,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:01,514 INFO L130 PetriNetUnfolder]: 18/482 cut-off events. [2022-09-16 11:39:01,514 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:39:01,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 482 events. 18/482 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1061 event pairs, 0 based on Foata normal form. 2/455 useless extension candidates. Maximal degree in co-relation 434. Up to 10 conditions per place. [2022-09-16 11:39:01,526 INFO L137 encePairwiseOnDemand]: 508/512 looper letters, 17 selfloop transitions, 2 changer transitions 0/430 dead transitions. [2022-09-16 11:39:01,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 430 transitions, 922 flow [2022-09-16 11:39:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:39:01,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:39:01,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1945 transitions. [2022-09-16 11:39:01,530 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.94970703125 [2022-09-16 11:39:01,530 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1945 transitions. [2022-09-16 11:39:01,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1945 transitions. [2022-09-16 11:39:01,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:01,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1945 transitions. [2022-09-16 11:39:01,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 486.25) internal successors, (1945), 4 states have internal predecessors, (1945), 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 11:39:01,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 512.0) internal successors, (2560), 5 states have internal predecessors, (2560), 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 11:39:01,541 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 512.0) internal successors, (2560), 5 states have internal predecessors, (2560), 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 11:39:01,542 INFO L175 Difference]: Start difference. First operand has 416 places, 426 transitions, 880 flow. Second operand 4 states and 1945 transitions. [2022-09-16 11:39:01,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 430 transitions, 922 flow [2022-09-16 11:39:01,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 430 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:01,551 INFO L231 Difference]: Finished difference. Result has 416 places, 424 transitions, 872 flow [2022-09-16 11:39:01,552 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=872, PETRI_PLACES=416, PETRI_TRANSITIONS=424} [2022-09-16 11:39:01,553 INFO L287 CegarLoopForPetriNet]: 415 programPoint places, 1 predicate places. [2022-09-16 11:39:01,553 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 424 transitions, 872 flow [2022-09-16 11:39:01,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 484.25) internal successors, (1937), 4 states have internal predecessors, (1937), 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 11:39:01,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:01,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:01,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:39:01,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:39:01,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash 126724252, now seen corresponding path program 1 times [2022-09-16 11:39:01,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125429971] [2022-09-16 11:39:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,945 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 11:39:01,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125429971] [2022-09-16 11:39:01,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125429971] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:01,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:01,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:01,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217799959] [2022-09-16 11:39:01,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:01,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:01,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:01,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:01,953 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 512 [2022-09-16 11:39:01,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 424 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 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 11:39:01,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:01,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 512 [2022-09-16 11:39:01,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:02,194 INFO L130 PetriNetUnfolder]: 28/722 cut-off events. [2022-09-16 11:39:02,194 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-09-16 11:39:02,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 722 events. 28/722 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1359 event pairs, 0 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 680. Up to 18 conditions per place. [2022-09-16 11:39:02,214 INFO L137 encePairwiseOnDemand]: 505/512 looper letters, 24 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2022-09-16 11:39:02,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 433 transitions, 942 flow [2022-09-16 11:39:02,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1468 transitions. [2022-09-16 11:39:02,217 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9557291666666666 [2022-09-16 11:39:02,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1468 transitions. [2022-09-16 11:39:02,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1468 transitions. [2022-09-16 11:39:02,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:02,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1468 transitions. [2022-09-16 11:39:02,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 489.3333333333333) internal successors, (1468), 3 states have internal predecessors, (1468), 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 11:39:02,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:02,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:02,226 INFO L175 Difference]: Start difference. First operand has 416 places, 424 transitions, 872 flow. Second operand 3 states and 1468 transitions. [2022-09-16 11:39:02,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 433 transitions, 942 flow [2022-09-16 11:39:02,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 433 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:39:02,235 INFO L231 Difference]: Finished difference. Result has 417 places, 425 transitions, 889 flow [2022-09-16 11:39:02,236 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=889, PETRI_PLACES=417, PETRI_TRANSITIONS=425} [2022-09-16 11:39:02,237 INFO L287 CegarLoopForPetriNet]: 415 programPoint places, 2 predicate places. [2022-09-16 11:39:02,237 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 425 transitions, 889 flow [2022-09-16 11:39:02,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 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 11:39:02,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:02,239 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:02,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:39:02,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:02,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:02,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1163181779, now seen corresponding path program 1 times [2022-09-16 11:39:02,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:02,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004590923] [2022-09-16 11:39:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:02,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:39:02,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:02,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004590923] [2022-09-16 11:39:02,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004590923] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:02,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:02,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:02,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603562269] [2022-09-16 11:39:02,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:02,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:02,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:02,414 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 512 [2022-09-16 11:39:02,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 425 transitions, 889 flow. Second operand has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 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 11:39:02,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:02,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 512 [2022-09-16 11:39:02,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:02,598 INFO L130 PetriNetUnfolder]: 28/720 cut-off events. [2022-09-16 11:39:02,598 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-09-16 11:39:02,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 720 events. 28/720 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1338 event pairs, 0 based on Foata normal form. 2/681 useless extension candidates. Maximal degree in co-relation 682. Up to 19 conditions per place. [2022-09-16 11:39:02,613 INFO L137 encePairwiseOnDemand]: 507/512 looper letters, 13 selfloop transitions, 4 changer transitions 0/424 dead transitions. [2022-09-16 11:39:02,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 424 transitions, 917 flow [2022-09-16 11:39:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:02,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-09-16 11:39:02,617 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.947265625 [2022-09-16 11:39:02,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-09-16 11:39:02,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-09-16 11:39:02,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:02,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-09-16 11:39:02,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 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 11:39:02,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:02,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 512.0) internal successors, (2048), 4 states have internal predecessors, (2048), 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 11:39:02,626 INFO L175 Difference]: Start difference. First operand has 417 places, 425 transitions, 889 flow. Second operand 3 states and 1455 transitions. [2022-09-16 11:39:02,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 424 transitions, 917 flow [2022-09-16 11:39:02,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 424 transitions, 915 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:02,635 INFO L231 Difference]: Finished difference. Result has 417 places, 424 transitions, 895 flow [2022-09-16 11:39:02,636 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=895, PETRI_PLACES=417, PETRI_TRANSITIONS=424} [2022-09-16 11:39:02,637 INFO L287 CegarLoopForPetriNet]: 415 programPoint places, 2 predicate places. [2022-09-16 11:39:02,637 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 424 transitions, 895 flow [2022-09-16 11:39:02,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 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 11:39:02,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:02,638 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:02,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:39:02,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:02,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1698895818, now seen corresponding path program 1 times [2022-09-16 11:39:02,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:02,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642737891] [2022-09-16 11:39:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:02,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:02,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:02,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642737891] [2022-09-16 11:39:02,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642737891] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:39:02,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145136321] [2022-09-16 11:39:02,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:02,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:39:02,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:39:02,800 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:39:02,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:39:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:03,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 11:39:03,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:39:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:03,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:39:03,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145136321] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:03,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:39:03,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 11:39:03,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815713487] [2022-09-16 11:39:03,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:03,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:39:03,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:39:03,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:39:03,353 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 512 [2022-09-16 11:39:03,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 424 transitions, 895 flow. Second operand has 4 states, 4 states have (on average 482.5) internal successors, (1930), 4 states have internal predecessors, (1930), 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 11:39:03,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:03,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 512 [2022-09-16 11:39:03,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:03,551 INFO L130 PetriNetUnfolder]: 28/718 cut-off events. [2022-09-16 11:39:03,551 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-09-16 11:39:03,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 718 events. 28/718 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1319 event pairs, 0 based on Foata normal form. 2/679 useless extension candidates. Maximal degree in co-relation 682. Up to 11 conditions per place. [2022-09-16 11:39:03,566 INFO L137 encePairwiseOnDemand]: 508/512 looper letters, 0 selfloop transitions, 0 changer transitions 429/429 dead transitions. [2022-09-16 11:39:03,567 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 429 transitions, 945 flow [2022-09-16 11:39:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:39:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:39:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1940 transitions. [2022-09-16 11:39:03,572 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.947265625 [2022-09-16 11:39:03,574 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1940 transitions. [2022-09-16 11:39:03,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1940 transitions. [2022-09-16 11:39:03,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:03,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1940 transitions. [2022-09-16 11:39:03,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 485.0) internal successors, (1940), 4 states have internal predecessors, (1940), 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 11:39:03,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 512.0) internal successors, (2560), 5 states have internal predecessors, (2560), 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 11:39:03,585 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 512.0) internal successors, (2560), 5 states have internal predecessors, (2560), 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 11:39:03,586 INFO L175 Difference]: Start difference. First operand has 417 places, 424 transitions, 895 flow. Second operand 4 states and 1940 transitions. [2022-09-16 11:39:03,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 429 transitions, 945 flow [2022-09-16 11:39:03,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 429 transitions, 941 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:03,591 INFO L231 Difference]: Finished difference. Result has 417 places, 0 transitions, 0 flow [2022-09-16 11:39:03,592 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=512, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=417, PETRI_TRANSITIONS=0} [2022-09-16 11:39:03,594 INFO L287 CegarLoopForPetriNet]: 415 programPoint places, 2 predicate places. [2022-09-16 11:39:03,594 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 0 transitions, 0 flow [2022-09-16 11:39:03,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 482.5) internal successors, (1930), 4 states have internal predecessors, (1930), 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 11:39:03,597 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-09-16 11:39:03,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-09-16 11:39:03,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-09-16 11:39:03,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-09-16 11:39:03,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-09-16 11:39:03,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-09-16 11:39:03,598 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-09-16 11:39:03,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-09-16 11:39:03,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-09-16 11:39:03,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-09-16 11:39:03,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-09-16 11:39:03,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-09-16 11:39:03,599 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-09-16 11:39:03,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:39:03,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-09-16 11:39:03,824 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-09-16 11:39:03,829 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:39:03,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:39:03,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:39:03 BasicIcfg [2022-09-16 11:39:03,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:39:03,835 INFO L158 Benchmark]: Toolchain (without parser) took 6144.55ms. Allocated memory was 172.0MB in the beginning and 272.6MB in the end (delta: 100.7MB). Free memory was 149.0MB in the beginning and 161.2MB in the end (delta: -12.3MB). Peak memory consumption was 167.9MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,835 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory was 134.0MB in the beginning and 133.9MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:39:03,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.08ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 148.7MB in the beginning and 164.4MB in the end (delta: -15.7MB). Peak memory consumption was 28.4MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.86ms. Allocated memory is still 211.8MB. Free memory was 164.4MB in the beginning and 160.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,836 INFO L158 Benchmark]: Boogie Preprocessor took 50.01ms. Allocated memory is still 211.8MB. Free memory was 160.3MB in the beginning and 157.0MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,837 INFO L158 Benchmark]: RCFGBuilder took 1005.52ms. Allocated memory is still 211.8MB. Free memory was 157.0MB in the beginning and 118.3MB in the end (delta: 38.7MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,837 INFO L158 Benchmark]: TraceAbstraction took 4340.38ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 117.8MB in the beginning and 161.2MB in the end (delta: -43.5MB). Peak memory consumption was 97.5MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 172.0MB. Free memory was 134.0MB in the beginning and 133.9MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 654.08ms. Allocated memory was 172.0MB in the beginning and 211.8MB in the end (delta: 39.8MB). Free memory was 148.7MB in the beginning and 164.4MB in the end (delta: -15.7MB). Peak memory consumption was 28.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 88.86ms. Allocated memory is still 211.8MB. Free memory was 164.4MB in the beginning and 160.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.01ms. Allocated memory is still 211.8MB. Free memory was 160.3MB in the beginning and 157.0MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1005.52ms. Allocated memory is still 211.8MB. Free memory was 157.0MB in the beginning and 118.3MB in the end (delta: 38.7MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4340.38ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 117.8MB in the beginning and 161.2MB in the end (delta: -43.5MB). Peak memory consumption was 97.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1085]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1085]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1084]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1084]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1096]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1096]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1093]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1093]: 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 3 procedures, 550 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 21 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 419 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=895occurred in iteration=5, InterpolantAutomatonStates: 20, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1475 NumberOfCodeBlocks, 1475 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1467 ConstructedInterpolants, 0 QuantifiedInterpolants, 2931 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1027 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 218/328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:39:03,879 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...