/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 17:40:12,670 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-01-10 17:40:12,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 17:40:12,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 17:40:12,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 17:40:12,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 17:40:12,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 17:40:12,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 17:40:12,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 17:40:12,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 17:40:12,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 17:40:12,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 17:40:12,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 17:40:12,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 17:40:12,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 17:40:12,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 17:40:12,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 17:40:12,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 17:40:12,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 17:40:12,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 17:40:12,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 17:40:12,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 17:40:12,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-10 17:40:12,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 17:40:12,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 17:40:12,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 17:40:12,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-01-10 17:40:12,760 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 17:40:12,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 17:40:12,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 17:40:12,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 17:40:12,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 17:40:12,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 17:40:12,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 17:40:12,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 17:40:12,763 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 17:40:12,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 17:40:12,763 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 17:40:12,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 17:40:12,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 17:40:12,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 17:40:12,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 17:40:12,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 17:40:12,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 17:40:12,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 17:40:12,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 17:40:12,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 17:40:12,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 17:40:12,766 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 17:40:12,766 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 17:40:12,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 17:40:12,766 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 17:40:12,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-01-10 17:40:12,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 17:40:12,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 17:40:12,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 17:40:12,948 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 17:40:12,948 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 17:40:12,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_power.oepc.i [2023-01-10 17:40:14,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 17:40:14,220 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 17:40:14,220 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_power.oepc.i [2023-01-10 17:40:14,231 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5725b03/71597b43377b432194aea2ff36beaafd/FLAG8f3f6a535 [2023-01-10 17:40:14,241 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d5725b03/71597b43377b432194aea2ff36beaafd [2023-01-10 17:40:14,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 17:40:14,244 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 17:40:14,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 17:40:14,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 17:40:14,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 17:40:14,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14, skipping insertion in model container [2023-01-10 17:40:14,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 17:40:14,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 17:40:14,445 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_power.oepc.i[995,1008] [2023-01-10 17:40:14,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 17:40:14,595 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 17:40:14,603 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_power.oepc.i[995,1008] [2023-01-10 17:40:14,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 17:40:14,670 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 17:40:14,670 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-10 17:40:14,675 INFO L208 MainTranslator]: Completed translation [2023-01-10 17:40:14,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14 WrapperNode [2023-01-10 17:40:14,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 17:40:14,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 17:40:14,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 17:40:14,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 17:40:14,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,708 INFO L138 Inliner]: procedures = 177, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2023-01-10 17:40:14,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 17:40:14,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 17:40:14,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 17:40:14,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 17:40:14,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,729 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 17:40:14,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 17:40:14,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 17:40:14,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 17:40:14,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (1/1) ... [2023-01-10 17:40:14,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 17:40:14,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:14,782 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) [2023-01-10 17:40:14,789 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 [2023-01-10 17:40:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 17:40:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 17:40:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-10 17:40:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-10 17:40:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-01-10 17:40:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-01-10 17:40:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-01-10 17:40:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 17:40:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-10 17:40:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 17:40:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 17:40:14,814 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 17:40:14,916 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 17:40:14,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 17:40:15,342 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 17:40:15,791 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 17:40:15,791 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-10 17:40:15,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:40:15 BoogieIcfgContainer [2023-01-10 17:40:15,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 17:40:15,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 17:40:15,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 17:40:15,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 17:40:15,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:40:14" (1/3) ... [2023-01-10 17:40:15,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7986bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:40:15, skipping insertion in model container [2023-01-10 17:40:15,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:40:14" (2/3) ... [2023-01-10 17:40:15,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7986bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:40:15, skipping insertion in model container [2023-01-10 17:40:15,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:40:15" (3/3) ... [2023-01-10 17:40:15,799 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2023-01-10 17:40:15,805 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 17:40:15,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 17:40:15,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-01-10 17:40:15,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 17:40:15,947 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-10 17:40:15,987 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:15,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:15,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:15,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:15,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-01-10 17:40:16,028 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,038 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,041 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,050 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,051 INFO L307 ceAbstractionStarter]: Result for error location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (1/86) [2023-01-10 17:40:16,066 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-01-10 17:40:16,107 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,108 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,108 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,109 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,110 INFO L307 ceAbstractionStarter]: Result for error location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (2/86) [2023-01-10 17:40:16,112 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2023-01-10 17:40:16,142 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,143 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,143 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,145 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,145 INFO L307 ceAbstractionStarter]: Result for error location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (3/86) [2023-01-10 17:40:16,148 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2023-01-10 17:40:16,192 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,193 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,193 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,194 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,194 INFO L307 ceAbstractionStarter]: Result for error location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (4/86) [2023-01-10 17:40:16,199 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,202 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2023-01-10 17:40:16,214 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,214 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,215 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,216 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,216 INFO L307 ceAbstractionStarter]: Result for error location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (5/86) [2023-01-10 17:40:16,218 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-01-10 17:40:16,230 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,231 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,231 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,232 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,232 INFO L307 ceAbstractionStarter]: Result for error location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (6/86) [2023-01-10 17:40:16,234 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-01-10 17:40:16,253 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,254 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,254 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,254 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,255 INFO L307 ceAbstractionStarter]: Result for error location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (7/86) [2023-01-10 17:40:16,257 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2023-01-10 17:40:16,264 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,265 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,265 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,266 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,266 INFO L307 ceAbstractionStarter]: Result for error location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (8/86) [2023-01-10 17:40:16,268 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,271 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2023-01-10 17:40:16,275 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,275 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,275 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,276 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,276 INFO L307 ceAbstractionStarter]: Result for error location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (9/86) [2023-01-10 17:40:16,278 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,281 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2023-01-10 17:40:16,286 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,287 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,287 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,288 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,289 INFO L307 ceAbstractionStarter]: Result for error location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (10/86) [2023-01-10 17:40:16,291 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,293 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2023-01-10 17:40:16,298 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,299 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,299 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,300 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,300 INFO L307 ceAbstractionStarter]: Result for error location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (11/86) [2023-01-10 17:40:16,303 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,310 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (13)] Waiting until timeout for monitored process [2023-01-10 17:40:16,313 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,314 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,314 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,315 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,315 INFO L307 ceAbstractionStarter]: Result for error location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (12/86) [2023-01-10 17:40:16,317 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,320 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2023-01-10 17:40:16,325 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,326 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,326 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,327 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,327 INFO L307 ceAbstractionStarter]: Result for error location P0Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (13/86) [2023-01-10 17:40:16,329 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,332 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (15)] Waiting until timeout for monitored process [2023-01-10 17:40:16,336 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,337 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,337 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,339 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,339 INFO L307 ceAbstractionStarter]: Result for error location P0Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (14/86) [2023-01-10 17:40:16,342 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,367 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,374 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,375 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,375 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,376 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,376 INFO L307 ceAbstractionStarter]: Result for error location P0Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (15/86) [2023-01-10 17:40:16,378 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2023-01-10 17:40:16,396 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,424 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,425 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,425 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,426 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,426 INFO L307 ceAbstractionStarter]: Result for error location P0Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (16/86) [2023-01-10 17:40:16,428 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (17)] Waiting until timeout for monitored process [2023-01-10 17:40:16,437 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2023-01-10 17:40:16,440 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,441 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,441 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,442 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,442 INFO L307 ceAbstractionStarter]: Result for error location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (17/86) [2023-01-10 17:40:16,444 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,448 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (19)] Waiting until timeout for monitored process [2023-01-10 17:40:16,452 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,452 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,453 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,453 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,453 INFO L307 ceAbstractionStarter]: Result for error location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (18/86) [2023-01-10 17:40:16,455 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,479 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2023-01-10 17:40:16,490 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,490 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,491 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,491 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,491 INFO L307 ceAbstractionStarter]: Result for error location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (19/86) [2023-01-10 17:40:16,493 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,498 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process [2023-01-10 17:40:16,502 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,508 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,508 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,509 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,509 INFO L307 ceAbstractionStarter]: Result for error location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (20/86) [2023-01-10 17:40:16,511 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,519 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (22)] Waiting until timeout for monitored process [2023-01-10 17:40:16,526 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,526 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,527 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,527 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,527 INFO L307 ceAbstractionStarter]: Result for error location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (21/86) [2023-01-10 17:40:16,530 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,533 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (23)] Waiting until timeout for monitored process [2023-01-10 17:40:16,538 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,539 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,539 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,539 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,540 INFO L307 ceAbstractionStarter]: Result for error location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (22/86) [2023-01-10 17:40:16,542 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,545 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2023-01-10 17:40:16,549 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,549 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,550 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,551 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,551 INFO L307 ceAbstractionStarter]: Result for error location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (23/86) [2023-01-10 17:40:16,553 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,556 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (25)] Waiting until timeout for monitored process [2023-01-10 17:40:16,560 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,560 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,560 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,561 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,561 INFO L307 ceAbstractionStarter]: Result for error location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (24/86) [2023-01-10 17:40:16,563 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,578 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (26)] Waiting until timeout for monitored process [2023-01-10 17:40:16,582 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,582 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,582 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,583 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,583 INFO L307 ceAbstractionStarter]: Result for error location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (25/86) [2023-01-10 17:40:16,585 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,592 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2023-01-10 17:40:16,599 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,600 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,600 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,601 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,603 INFO L307 ceAbstractionStarter]: Result for error location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (26/86) [2023-01-10 17:40:16,607 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,609 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (28)] Waiting until timeout for monitored process [2023-01-10 17:40:16,617 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,618 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,618 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,621 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,623 INFO L307 ceAbstractionStarter]: Result for error location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (27/86) [2023-01-10 17:40:16,628 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,631 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (29)] Waiting until timeout for monitored process [2023-01-10 17:40:16,635 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,635 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,635 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,636 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,636 INFO L307 ceAbstractionStarter]: Result for error location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (28/86) [2023-01-10 17:40:16,638 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,641 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (30)] Waiting until timeout for monitored process [2023-01-10 17:40:16,649 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,649 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,649 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,650 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,650 INFO L307 ceAbstractionStarter]: Result for error location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (29/86) [2023-01-10 17:40:16,652 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,655 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (31)] Waiting until timeout for monitored process [2023-01-10 17:40:16,660 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,660 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,661 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,661 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,661 INFO L307 ceAbstractionStarter]: Result for error location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (30/86) [2023-01-10 17:40:16,663 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,667 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (32)] Waiting until timeout for monitored process [2023-01-10 17:40:16,670 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,671 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,671 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,671 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,671 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,672 INFO L307 ceAbstractionStarter]: Result for error location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (31/86) [2023-01-10 17:40:16,674 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,677 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (33)] Waiting until timeout for monitored process [2023-01-10 17:40:16,680 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,680 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,681 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,681 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,681 INFO L307 ceAbstractionStarter]: Result for error location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (32/86) [2023-01-10 17:40:16,683 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,687 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (34)] Waiting until timeout for monitored process [2023-01-10 17:40:16,690 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,691 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,691 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,692 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,692 INFO L307 ceAbstractionStarter]: Result for error location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (33/86) [2023-01-10 17:40:16,694 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,697 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (35)] Waiting until timeout for monitored process [2023-01-10 17:40:16,700 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,701 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,701 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,701 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-10 17:40:16,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:16,702 INFO L445 BasicCegarLoop]: Path program histogram: [] [2023-01-10 17:40:16,702 INFO L307 ceAbstractionStarter]: Result for error location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (34/86) [2023-01-10 17:40:16,705 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:16,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:16,708 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:16,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (36)] Waiting until timeout for monitored process [2023-01-10 17:40:16,712 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:16,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:16,712 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:16,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:16,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash -642071165, now seen corresponding path program 1 times [2023-01-10 17:40:16,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:16,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979698749] [2023-01-10 17:40:16,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:16,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:17,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979698749] [2023-01-10 17:40:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979698749] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:17,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:17,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:17,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201415557] [2023-01-10 17:40:17,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:17,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:17,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:17,145 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:17,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-01-10 17:40:17,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:17,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:17,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:17,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 17:40:17,183 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:17,183 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (35/86) [2023-01-10 17:40:17,188 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:17,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:17,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:17,217 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:17,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (37)] Waiting until timeout for monitored process [2023-01-10 17:40:17,220 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:17,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:17,220 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:17,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:17,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:17,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:17,229 INFO L85 PathProgramCache]: Analyzing trace with hash -642071164, now seen corresponding path program 1 times [2023-01-10 17:40:17,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:17,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277750414] [2023-01-10 17:40:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:17,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:17,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:17,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277750414] [2023-01-10 17:40:17,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277750414] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:17,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:17,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:17,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509763237] [2023-01-10 17:40:17,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:17,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:17,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:17,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:17,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:17,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:17,393 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:17,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-01-10 17:40:17,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:17,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:17,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 17:40:17,416 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:17,416 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (36/86) [2023-01-10 17:40:17,418 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:17,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:17,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:17,438 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:17,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (38)] Waiting until timeout for monitored process [2023-01-10 17:40:17,450 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:17,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:17,450 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:17,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:17,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:17,471 INFO L85 PathProgramCache]: Analyzing trace with hash -935494003, now seen corresponding path program 1 times [2023-01-10 17:40:17,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:17,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785510160] [2023-01-10 17:40:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:17,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:17,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:17,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785510160] [2023-01-10 17:40:17,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785510160] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:17,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:17,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:17,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551199628] [2023-01-10 17:40:17,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:17,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:17,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:17,565 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:17,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-01-10 17:40:17,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:17,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:17,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-10 17:40:17,893 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:17,894 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (37/86) [2023-01-10 17:40:17,895 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:17,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:17,927 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:17,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (39)] Waiting until timeout for monitored process [2023-01-10 17:40:18,008 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:18,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:18,009 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:18,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:18,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:18,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:18,016 INFO L85 PathProgramCache]: Analyzing trace with hash -935494002, now seen corresponding path program 1 times [2023-01-10 17:40:18,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:18,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784158355] [2023-01-10 17:40:18,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:18,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:18,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:18,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784158355] [2023-01-10 17:40:18,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784158355] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:18,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:18,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060444825] [2023-01-10 17:40:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:18,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:18,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:18,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:18,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:18,137 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:18,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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) [2023-01-10 17:40:18,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:18,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:18,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-10 17:40:18,341 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:18,341 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (38/86) [2023-01-10 17:40:18,343 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:18,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:18,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:18,346 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:18,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (40)] Waiting until timeout for monitored process [2023-01-10 17:40:18,353 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:18,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:18,354 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:18,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:18,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:18,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash -677746530, now seen corresponding path program 1 times [2023-01-10 17:40:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706903501] [2023-01-10 17:40:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706903501] [2023-01-10 17:40:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706903501] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:18,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:18,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135192965] [2023-01-10 17:40:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:18,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:18,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:18,450 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:18,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 38.5) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-01-10 17:40:18,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:18,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:18,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:18,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-10 17:40:18,916 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:18,917 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (39/86) [2023-01-10 17:40:18,919 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:18,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:18,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:18,930 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:18,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (41)] Waiting until timeout for monitored process [2023-01-10 17:40:18,934 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:18,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:18,934 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:18,934 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:18,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:18,940 INFO L85 PathProgramCache]: Analyzing trace with hash -677746529, now seen corresponding path program 1 times [2023-01-10 17:40:18,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:18,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403890235] [2023-01-10 17:40:18,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:18,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:19,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:19,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403890235] [2023-01-10 17:40:19,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403890235] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:19,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:19,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:19,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757189367] [2023-01-10 17:40:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:19,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:19,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:19,041 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:19,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 38.5) internal successors, (77), 3 states have internal predecessors, (77), 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) [2023-01-10 17:40:19,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:19,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:19,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:19,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-10 17:40:19,455 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:19,455 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (40/86) [2023-01-10 17:40:19,457 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:19,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:19,460 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:19,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (42)] Waiting until timeout for monitored process [2023-01-10 17:40:19,463 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:19,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:19,464 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:19,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:19,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:19,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:19,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1149253387, now seen corresponding path program 1 times [2023-01-10 17:40:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:19,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724253933] [2023-01-10 17:40:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:19,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:19,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:19,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724253933] [2023-01-10 17:40:19,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724253933] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:19,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:19,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:19,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614574503] [2023-01-10 17:40:19,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:19,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:19,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:19,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:19,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:19,515 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:19,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-01-10 17:40:19,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:22,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:22,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-10 17:40:22,181 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:22,181 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (41/86) [2023-01-10 17:40:22,184 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:22,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:22,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:22,203 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:22,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (43)] Waiting until timeout for monitored process [2023-01-10 17:40:22,214 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:22,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:22,215 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:22,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:22,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:22,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:22,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1149253386, now seen corresponding path program 1 times [2023-01-10 17:40:22,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:22,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472845300] [2023-01-10 17:40:22,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:22,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:22,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:22,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472845300] [2023-01-10 17:40:22,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472845300] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:22,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:22,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:22,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523840942] [2023-01-10 17:40:22,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:22,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:40:22,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:40:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:40:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:22,334 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:22,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2023-01-10 17:40:22,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:40:24,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:24,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-10 17:40:24,813 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-10 17:40:24,813 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (42/86) [2023-01-10 17:40:24,815 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:24,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:24,818 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:24,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (44)] Waiting until timeout for monitored process [2023-01-10 17:40:24,822 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:24,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:24,823 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:24,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:24,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:24,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -951134656, now seen corresponding path program 1 times [2023-01-10 17:40:24,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:24,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895727275] [2023-01-10 17:40:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:24,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895727275] [2023-01-10 17:40:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895727275] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:24,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:24,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:24,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152488903] [2023-01-10 17:40:24,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:24,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 17:40:24,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 17:40:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 17:40:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:24,872 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:24,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 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) [2023-01-10 17:40:24,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:27,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-10 17:40:27,321 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:27,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1354794266, now seen corresponding path program 1 times [2023-01-10 17:40:27,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:27,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231954224] [2023-01-10 17:40:27,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:27,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:27,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:27,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231954224] [2023-01-10 17:40:27,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231954224] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:27,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:27,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 17:40:27,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317064993] [2023-01-10 17:40:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:27,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 17:40:27,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:27,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 17:40:27,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-01-10 17:40:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:27,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:27,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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) [2023-01-10 17:40:27,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:27,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:38,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-10 17:40:38,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:38,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-10 17:40:38,171 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-10 17:40:38,172 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (43/86) [2023-01-10 17:40:38,173 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:38,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:38,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:38,176 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:38,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (45)] Waiting until timeout for monitored process [2023-01-10 17:40:38,181 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:38,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:38,182 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:38,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:38,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:38,192 INFO L85 PathProgramCache]: Analyzing trace with hash -951134655, now seen corresponding path program 1 times [2023-01-10 17:40:38,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:38,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24321286] [2023-01-10 17:40:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:38,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:38,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:38,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:38,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24321286] [2023-01-10 17:40:38,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24321286] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:38,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:38,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055390464] [2023-01-10 17:40:38,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:38,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 17:40:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:38,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 17:40:38,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 17:40:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:38,215 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:38,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 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) [2023-01-10 17:40:38,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:40,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-10 17:40:40,614 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:40,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1354794267, now seen corresponding path program 1 times [2023-01-10 17:40:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499102406] [2023-01-10 17:40:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:40,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:41,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:41,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499102406] [2023-01-10 17:40:41,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499102406] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:41,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:41,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-10 17:40:41,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969269264] [2023-01-10 17:40:41,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:41,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 17:40:41,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:41,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 17:40:41,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-01-10 17:40:41,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:41,065 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:41,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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) [2023-01-10 17:40:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:49,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:49,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-10 17:40:49,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:40:49,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-10 17:40:49,644 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-10 17:40:49,645 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (44/86) [2023-01-10 17:40:49,647 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:49,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:40:49,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:40:49,679 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:40:49,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (46)] Waiting until timeout for monitored process [2023-01-10 17:40:49,682 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:40:49,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:40:49,683 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:40:49,683 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:40:49,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:49,693 INFO L85 PathProgramCache]: Analyzing trace with hash -951134654, now seen corresponding path program 1 times [2023-01-10 17:40:49,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:49,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551478603] [2023-01-10 17:40:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:49,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:49,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:49,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551478603] [2023-01-10 17:40:49,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551478603] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:49,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:49,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:40:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690654347] [2023-01-10 17:40:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:49,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 17:40:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:49,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 17:40:49,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 17:40:49,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:49,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:49,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 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) [2023-01-10 17:40:49,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:51,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:51,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-10 17:40:51,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:40:51,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:40:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1354794268, now seen corresponding path program 1 times [2023-01-10 17:40:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:40:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472006793] [2023-01-10 17:40:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:40:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:40:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:40:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:40:52,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:40:52,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472006793] [2023-01-10 17:40:52,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472006793] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:40:52,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:40:52,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-10 17:40:52,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684387902] [2023-01-10 17:40:52,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:40:52,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-10 17:40:52,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:40:52,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-10 17:40:52,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-10 17:40:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:52,118 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:40:52,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 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) [2023-01-10 17:40:52,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:40:52,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 17:41:03,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:41:03,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-10 17:41:03,979 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-10 17:41:03,979 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (45/86) [2023-01-10 17:41:03,980 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:41:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:41:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:41:04,009 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:41:04,020 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:41:04,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:41:04,021 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:41:04,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:41:04,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:04,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash -951134653, now seen corresponding path program 1 times [2023-01-10 17:41:04,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157891289] [2023-01-10 17:41:04,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:04,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:04,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (47)] Waiting until timeout for monitored process [2023-01-10 17:41:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:04,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:04,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157891289] [2023-01-10 17:41:04,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157891289] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:04,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:04,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:41:04,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574101276] [2023-01-10 17:41:04,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:04,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 17:41:04,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 17:41:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 17:41:04,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:04,058 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:04,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 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) [2023-01-10 17:41:04,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:06,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:06,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-10 17:41:06,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:06,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:06,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1354794269, now seen corresponding path program 1 times [2023-01-10 17:41:06,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:06,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202618099] [2023-01-10 17:41:06,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:06,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:06,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:06,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202618099] [2023-01-10 17:41:06,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202618099] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:06,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:06,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-10 17:41:06,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220120721] [2023-01-10 17:41:06,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:06,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-10 17:41:06,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:06,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-10 17:41:06,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-01-10 17:41:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:06,485 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:06,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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) [2023-01-10 17:41:06,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:06,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-10 17:41:17,843 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:41:17,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-10 17:41:17,845 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-01-10 17:41:17,845 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (46/86) [2023-01-10 17:41:17,862 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:41:17,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:41:17,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:41:17,885 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:41:17,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (48)] Waiting until timeout for monitored process [2023-01-10 17:41:17,890 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:41:17,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:41:17,890 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:41:17,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:41:17,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:17,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:17,898 INFO L85 PathProgramCache]: Analyzing trace with hash 579597638, now seen corresponding path program 1 times [2023-01-10 17:41:17,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:17,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058567359] [2023-01-10 17:41:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:17,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:17,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:17,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058567359] [2023-01-10 17:41:17,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058567359] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:17,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:17,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:41:17,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768492875] [2023-01-10 17:41:17,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:17,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 17:41:17,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:17,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 17:41:17,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 17:41:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:17,945 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:17,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2023-01-10 17:41:17,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:20,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:20,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-10 17:41:20,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash -951049812, now seen corresponding path program 1 times [2023-01-10 17:41:20,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:20,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778572293] [2023-01-10 17:41:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:20,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:20,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:20,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778572293] [2023-01-10 17:41:20,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778572293] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:20,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:20,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:41:20,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666300211] [2023-01-10 17:41:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:20,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:41:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:20,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:41:20,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:41:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:20,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:20,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 47.5) internal successors, (95), 3 states have internal predecessors, (95), 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) [2023-01-10 17:41:20,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:20,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:41:22,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-10 17:41:22,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:22,059 INFO L85 PathProgramCache]: Analyzing trace with hash 871027261, now seen corresponding path program 1 times [2023-01-10 17:41:22,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:22,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524816679] [2023-01-10 17:41:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:22,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:22,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524816679] [2023-01-10 17:41:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524816679] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:22,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:22,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-10 17:41:22,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998660024] [2023-01-10 17:41:22,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:22,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-10 17:41:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-10 17:41:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-10 17:41:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:22,398 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:22,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 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) [2023-01-10 17:41:22,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:22,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:41:22,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-10 17:41:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-10 17:41:36,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 1 remaining) [2023-01-10 17:41:36,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-10 17:41:36,646 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-10 17:41:36,646 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE was SAFE (47/86) [2023-01-10 17:41:36,648 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:41:36,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 17:41:36,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 17:41:36,663 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 17:41:36,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (49)] Waiting until timeout for monitored process [2023-01-10 17:41:36,669 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 17:41:36,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE ======== [2023-01-10 17:41:36,669 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=PARTIAL_ORDER_FA, 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;@543c280e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 17:41:36,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 17:41:36,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:36,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:36,678 INFO L85 PathProgramCache]: Analyzing trace with hash 579597639, now seen corresponding path program 1 times [2023-01-10 17:41:36,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:36,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278444736] [2023-01-10 17:41:36,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:36,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:36,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:36,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278444736] [2023-01-10 17:41:36,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278444736] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:36,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:36,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:41:36,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730831633] [2023-01-10 17:41:36,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:36,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 17:41:36,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:36,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 17:41:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 17:41:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:36,701 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:36,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2023-01-10 17:41:36,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:39,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-10 17:41:39,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE] === [2023-01-10 17:41:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 17:41:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash -951049811, now seen corresponding path program 1 times [2023-01-10 17:41:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 17:41:39,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455081107] [2023-01-10 17:41:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 17:41:39,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 17:41:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 17:41:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 17:41:39,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 17:41:39,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455081107] [2023-01-10 17:41:39,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455081107] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 17:41:39,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 17:41:39,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 17:41:39,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863409624] [2023-01-10 17:41:39,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 17:41:39,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-10 17:41:39,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 17:41:39,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-10 17:41:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-10 17:41:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:39,094 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 17:41:39,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 47.5) internal successors, (95), 3 states have internal predecessors, (95), 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) [2023-01-10 17:41:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 17:41:39,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.