/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix043.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:30:41,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:30:41,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:30:41,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:30:41,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:30:41,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:30:41,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:30:41,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:30:41,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:30:41,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:30:41,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:30:41,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:30:41,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:30:41,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:30:41,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:30:41,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:30:41,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:30:41,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:30:41,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:30:41,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:30:41,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:30:41,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:30:41,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:30:41,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:30:41,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:30:41,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:30:41,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:30:41,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:30:41,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:30:41,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:30:41,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:30:41,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:30:41,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:30:41,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:30:41,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:30:41,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:30:41,720 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-FA-NoLbe.epf [2022-09-16 10:30:41,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:30:41,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:30:41,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:30:41,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:30:41,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:30:41,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:30:41,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:30:41,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:30:41,758 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:30:41,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:30:41,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:30:41,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:30:41,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:30:41,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:30:41,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:30:41,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:30:41,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:30:41,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:30:41,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:30:41,761 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:30:41,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:30:41,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:30:42,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:30:42,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:30:42,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:30:42,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:30:42,059 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:30:42,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix043.opt.i [2022-09-16 10:30:42,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc941f603/ef7f864255734dff8e1368d928a57aae/FLAG017a0fe47 [2022-09-16 10:30:42,584 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:30:42,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043.opt.i [2022-09-16 10:30:42,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc941f603/ef7f864255734dff8e1368d928a57aae/FLAG017a0fe47 [2022-09-16 10:30:42,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc941f603/ef7f864255734dff8e1368d928a57aae [2022-09-16 10:30:42,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:30:42,623 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:30:42,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:30:42,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:30:42,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:30:42,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:30:42" (1/1) ... [2022-09-16 10:30:42,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d2d40b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:42, skipping insertion in model container [2022-09-16 10:30:42,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:30:42" (1/1) ... [2022-09-16 10:30:42,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:30:42,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:30:42,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043.opt.i[944,957] [2022-09-16 10:30:43,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:30:43,155 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:30:43,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043.opt.i[944,957] [2022-09-16 10:30:43,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:30:43,262 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:30:43,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43 WrapperNode [2022-09-16 10:30:43,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:30:43,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:30:43,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:30:43,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:30:43,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,353 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 301 [2022-09-16 10:30:43,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:30:43,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:30:43,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:30:43,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:30:43,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:30:43,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:30:43,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:30:43,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:30:43,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (1/1) ... [2022-09-16 10:30:43,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:30:43,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:30:43,445 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 10:30:43,467 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 10:30:43,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:30:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:30:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:30:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:30:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:30:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:30:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:30:43,484 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:30:43,484 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:30:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:30:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:30:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:30:43,485 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:30:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:30:43,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:30:43,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:30:43,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:30:43,488 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 10:30:43,686 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:30:43,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:30:44,225 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:30:44,698 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:30:44,698 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:30:44,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:30:44 BoogieIcfgContainer [2022-09-16 10:30:44,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:30:44,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:30:44,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:30:44,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:30:44,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:30:42" (1/3) ... [2022-09-16 10:30:44,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cabbd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:30:44, skipping insertion in model container [2022-09-16 10:30:44,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:30:43" (2/3) ... [2022-09-16 10:30:44,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cabbd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:30:44, skipping insertion in model container [2022-09-16 10:30:44,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:30:44" (3/3) ... [2022-09-16 10:30:44,711 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.opt.i [2022-09-16 10:30:44,719 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:30:44,729 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:30:44,729 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:30:44,729 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:30:44,797 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:30:44,847 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 155 places, 144 transitions, 308 flow [2022-09-16 10:30:55,902 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 324436 states, 324356 states have (on average 4.601684568807113) internal successors, (1492584), 324435 states have internal predecessors, (1492584), 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 10:30:55,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:30:55,943 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@4a9915d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:30:55,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:30:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 324436 states, 324356 states have (on average 4.601684568807113) internal successors, (1492584), 324435 states have internal predecessors, (1492584), 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 10:30:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-09-16 10:30:56,624 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:30:56,625 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:30:56,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:30:56,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:30:56,631 INFO L85 PathProgramCache]: Analyzing trace with hash 202694270, now seen corresponding path program 1 times [2022-09-16 10:30:56,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:30:56,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24771608] [2022-09-16 10:30:56,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:30:56,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:30:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:30:56,956 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 10:30:56,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:30:56,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24771608] [2022-09-16 10:30:56,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24771608] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:30:56,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:30:56,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:30:56,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706331176] [2022-09-16 10:30:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:30:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:30:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:30:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:30:56,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:30:57,807 INFO L87 Difference]: Start difference. First operand has 324436 states, 324356 states have (on average 4.601684568807113) internal successors, (1492584), 324435 states have internal predecessors, (1492584), 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) Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 10:31:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:03,610 INFO L93 Difference]: Finished difference Result 258783 states and 1152217 transitions. [2022-09-16 10:31:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:31:03,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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) Word has length 53 [2022-09-16 10:31:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:31:07,266 INFO L225 Difference]: With dead ends: 258783 [2022-09-16 10:31:07,266 INFO L226 Difference]: Without dead ends: 258783 [2022-09-16 10:31:07,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:31:07,271 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 65 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:31:07,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 194 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:31:08,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258783 states. [2022-09-16 10:31:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258783 to 258783. [2022-09-16 10:31:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258783 states, 258591 states have (on average 4.455750586834035) internal successors, (1152217), 258782 states have internal predecessors, (1152217), 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 10:31:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258783 states to 258783 states and 1152217 transitions. [2022-09-16 10:31:26,621 INFO L78 Accepts]: Start accepts. Automaton has 258783 states and 1152217 transitions. Word has length 53 [2022-09-16 10:31:26,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:31:26,622 INFO L495 AbstractCegarLoop]: Abstraction has 258783 states and 1152217 transitions. [2022-09-16 10:31:26,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 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 10:31:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 258783 states and 1152217 transitions. [2022-09-16 10:31:26,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:31:26,626 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:31:26,626 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:31:26,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:31:26,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:31:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:31:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash -713379849, now seen corresponding path program 1 times [2022-09-16 10:31:26,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:31:26,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360188080] [2022-09-16 10:31:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:31:26,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:31:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:31:26,764 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 10:31:26,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:31:26,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360188080] [2022-09-16 10:31:26,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360188080] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:31:26,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:31:26,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:31:26,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428734310] [2022-09-16 10:31:26,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:31:26,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:31:26,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:31:26,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:31:26,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:31:26,768 INFO L87 Difference]: Start difference. First operand 258783 states and 1152217 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:31:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:31,648 INFO L93 Difference]: Finished difference Result 235923 states and 1009171 transitions. [2022-09-16 10:31:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:31:31,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) Word has length 64 [2022-09-16 10:31:31,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:31:36,598 INFO L225 Difference]: With dead ends: 235923 [2022-09-16 10:31:36,604 INFO L226 Difference]: Without dead ends: 235923 [2022-09-16 10:31:36,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:31:36,606 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 239 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:31:36,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 255 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:31:38,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235923 states. [2022-09-16 10:31:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235923 to 227283. [2022-09-16 10:31:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227283 states, 227175 states have (on average 4.344566963794431) internal successors, (986977), 227282 states have internal predecessors, (986977), 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 10:31:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227283 states to 227283 states and 986977 transitions. [2022-09-16 10:31:55,673 INFO L78 Accepts]: Start accepts. Automaton has 227283 states and 986977 transitions. Word has length 64 [2022-09-16 10:31:55,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:31:55,675 INFO L495 AbstractCegarLoop]: Abstraction has 227283 states and 986977 transitions. [2022-09-16 10:31:55,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:31:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 227283 states and 986977 transitions. [2022-09-16 10:31:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:31:55,678 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:31:55,678 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:31:55,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:31:55,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:31:55,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:31:55,680 INFO L85 PathProgramCache]: Analyzing trace with hash -713379848, now seen corresponding path program 1 times [2022-09-16 10:31:55,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:31:55,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550223696] [2022-09-16 10:31:55,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:31:55,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:31:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:31:55,795 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 10:31:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:31:55,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550223696] [2022-09-16 10:31:55,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550223696] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:31:55,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:31:55,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:31:55,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070660519] [2022-09-16 10:31:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:31:55,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:31:55,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:31:55,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:31:55,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:31:55,799 INFO L87 Difference]: Start difference. First operand 227283 states and 986977 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:31:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:31:59,360 INFO L93 Difference]: Finished difference Result 148686 states and 653377 transitions. [2022-09-16 10:31:59,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:31:59,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) Word has length 64 [2022-09-16 10:31:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:32:02,313 INFO L225 Difference]: With dead ends: 148686 [2022-09-16 10:32:02,313 INFO L226 Difference]: Without dead ends: 148686 [2022-09-16 10:32:02,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:32:02,314 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 135 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:32:02,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 355 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:32:02,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148686 states. [2022-09-16 10:32:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148686 to 148686. [2022-09-16 10:32:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148686 states, 148656 states have (on average 4.395227908728877) internal successors, (653377), 148685 states have internal predecessors, (653377), 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 10:32:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148686 states to 148686 states and 653377 transitions. [2022-09-16 10:32:13,489 INFO L78 Accepts]: Start accepts. Automaton has 148686 states and 653377 transitions. Word has length 64 [2022-09-16 10:32:13,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:32:13,489 INFO L495 AbstractCegarLoop]: Abstraction has 148686 states and 653377 transitions. [2022-09-16 10:32:13,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 10:32:13,490 INFO L276 IsEmpty]: Start isEmpty. Operand 148686 states and 653377 transitions. [2022-09-16 10:32:13,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-09-16 10:32:13,525 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:32:13,525 INFO L195 NwaCegarLoop]: 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 10:32:13,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:32:13,526 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:32:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:32:13,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1440285832, now seen corresponding path program 1 times [2022-09-16 10:32:13,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:32:13,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201697779] [2022-09-16 10:32:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:32:13,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:32:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:32:14,161 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 10:32:14,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:32:14,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201697779] [2022-09-16 10:32:14,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201697779] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:32:14,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:32:14,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:32:14,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361140516] [2022-09-16 10:32:14,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:32:14,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:32:14,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:32:14,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:32:14,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:32:14,168 INFO L87 Difference]: Start difference. First operand 148686 states and 653377 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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)